[Thumbnail:1_1_5] Tab=Pebble tools,idh_c2_400_000BC_tools_1,wav [Thumbnail:1_3_5] Tab=Stone tools,idh_c1_900_000BC_tools_1,wav [Thumbnail:1_4_4] Tab=Fire,idh_c1_500_000BC_materials_1,wav [Thumbnail:1_4_5] Tab=Acheulean tools,idh_c1_500_000BC_tools_1,wav,bmp [Thumbnail:1_7_1] Tab=Oval huts,idh_c400_000BC_architecture_1,wav [Thumbnail:1_7_5] Tab=Burin,idh_c400_000BC_tools_1,wav,bmp [Thumbnail:1_8_5] Tab=Wooden spear,idh_c300_000BC_tools_1,wav [Thumbnail:1_10_5] Tab=Mousterian tools,idh_c150_000BC_tools_1,wav [Thumbnail:1_13_5] Tab=Carvings,idh_c110_000BC_tools_1,wav [Thumbnail:1_17_1] Tab=Mammoth bone dwellings,idh_c40_000BC_architecture_1,wav,bmp [Thumbnail:1_17_2] Tab=Oldest ""art"",idh_c40_000BC_communications_1,wav [Thumbnail:1_17_4] Tab=Stone lamps,idh_c40_000BC_materials_1,wav Tab=Hearths,idh_c40_000BC_materials_2,wav [Thumbnail:1_19_1] Tab=Musical instruments,idh_c30_000BC_architecture_1,wav,bmp [Thumbnail:1_19_2] Tab=Tallies on bone,idh_c30_000BC_communications_1,wav Tab=Early animal images,idh_c30_000BC_communications_2,wav [Thumbnail:1_19_5] Tab=Aurignacian tools,idh_c30_000BC_tools_1,wav,bmp [Thumbnail:1_20_3] Tab=Food storage,idh_c25_000BC_food_1,wav [Thumbnail:1_20_5] Tab=Gravettian tools,idh_c25_000BC_tools_1,wav [Thumbnail:1_21_2] Tab=Early engravings,idh_c20_000BC_communications_1,wav [Thumbnail:1_21_3] Tab=Domesticated cat,idh_c20_000BC_food_1,wav [Thumbnail:1_21_5] Tab=Solutrean tools,idh_c20_000BC_tools_1,wav,bmp [Thumbnail:1_22_1] Tab=Mammoth bone huts,idh_c15_000BC_architecture_1,wav [Thumbnail:1_22_5] Tab=Bone harpoons,idh_c15_000BC_tools_1,wav,bmp Tab=Bâton de commandement,idh_c15_000BC_tools_2,wav [Thumbnail:1_23_2] Tab=Altamira Cave,idh_c10_000BC_communications_1,wav,bmp Tab=Clay tokens,idh_c10_000BC_communications_2,wav [Thumbnail:1_23_3] Tab=Domesticated dog,idh_c10_000BC_food_1,wav,bmp [Thumbnail:1_23_5] Tab=Brick houses,idh_c10_000BC_tools_1,wav [Thumbnail:1_24_3] Tab=Domestication,idh_c9000BC_food_1,wav,bmp [Thumbnail:1_25_1] Tab=Dome-shaped houses,idh_c8000BC_architecture_1,wav [Thumbnail:1_25_3] Tab=Beer,idh_c8000BC_food_1,wav [Thumbnail:1_25_5] Tab=Arrows,idh_c8000BC_tools_1,wav [Thumbnail:1_26_1] Tab=Rectangular houses,idh_c7000BC_architecture_1,wav [Thumbnail:1_26_3] Tab=Domestication,idh_c7000BC_food_1,wav [Thumbnail:1_26_6] Tab=Sledges,idh_c7000BC_transportation_1,wav [Thumbnail:1_27_3] Tab=Wine-making; peaches,idh_c6000BC_food_1,wav [Thumbnail:1_27_4] Tab=Lead beads,idh_c6000BC_materials_1,wav Tab=Bricks,idh_c6000BC_materials_2,wav [Thumbnail:1_27_6] Tab=Sledges,idh_c6000BC_transportation_1,wav [Thumbnail:1_28_1] Tab=Well,idh_c5000BC_architecture_1,wav [Thumbnail:1_28_3] Tab=New foods,idh_c5000BC_food_1,wav [Thumbnail:1_28_5] Tab=Axes,idh_c5000BC_tools_1,wav,bmp,"stone ax head" [Thumbnail:1_28_6] Tab=Cave paintings,idh_c5000BC_transportation_1,wav [Thumbnail:1_29_1] Tab=Stone buildings,idh_c4500BC_architecture_1,wav [Thumbnail:1_29_4] Tab=Copper ores,idh_c4500BC_materials_1,wav [Thumbnail:1_30_3] Tab=Maize,idh_c4000BC_food_1,wav,bmp,"sowing rice, Kiang-si Province, China" [Thumbnail:1_30_4] Tab=Smelting,idh_c4000BC_materials_1,wav [Thumbnail:1_30_6] Tab=Boats,idh_c4000BC_transportation_1,wav,bmp,"Egyptian war galley" Tab=Horses,idh_c4000BC_transportation_2,wav [Thumbnail:2_2_4] Tab=Bronze,idh_c3700BC_materials_1,wav [Thumbnail:2_3_1] Tab=Ziggurat,idh_c3500BC_architecture_1,wav [Thumbnail:2_3_3] Tab=Domestication,idh_c3500BC_food_1,wav Tab=Wine,idh_c3500BC_food_2,wav [Thumbnail:2_3_4] Tab=Fired bricks,idh_c3500BC_materials_1,wav [Thumbnail:2_3_6] Tab=Potter's wheel,idh_c3500BC_tools_1,wav [Thumbnail:2_3_7] Tab=Sailing ships,idh_c3500BC_transportation_1,wav Tab=Wheeled vehicles,idh_c3500BC_transportation_2,wav [Thumbnail:2_4_3] Tab=Cotton,idh_c3300BC_food_1,wav [Thumbnail:2_4_4] Tab=Ice man,idh_c3300BC_materials_1,wav,bmp [Thumbnail:2_5_2] Tab=Number symbols,idh_c3100BC_communications_1,wav [Thumbnail:2_5_3] Tab=Peanuts,idh_c3100BC_food_1,wav [Thumbnail:2_6_2] Tab=Abacus,idh_c3000BC_communications_1,wav,bmp [Thumbnail:2_6_3] Tab=Bag press,idh_c3000BC_food_1,wav [Thumbnail:2_6_5] Tab=Tooth filling,idh_c3000BC_materials_1,wav [Thumbnail:2_6_6] Tab=Axes,idh_c3000BC_tools_1,wav Tab=Clothes pins,idh_c3000BC_tools_2,wav [Thumbnail:2_8_3] Tab=Sweet potato,idh_c2800BC_food_1,wav [Thumbnail:2_9_3] Tab=Silk,idh_c2700BC_food_1,wav [Thumbnail:2_9_7] Tab=Seagoing trade,idh_c2700BC_transportation_1,wav [Thumbnail:2_10_1] Tab=Step pyramid,idh_c2600BC_architecture_1,wav,bmp Tab=Pyramid,idh_c2600BC_architecture_2,wav Tab=Pyramid of Giza,idh_c2600BC_architecture_3,wav,bmp,"lifting materials for the Great Pyramid, as described by Herodotus" [Thumbnail:2_10_5] Tab=Mummification,idh_c2600BC_materials_1,wav,bmp,"autopsied mummy" [Thumbnail:2_10_6] Tab=Wheeled vehicles,idh_c2600BC_transportation_1,wav Tab=Shipping,idh_c2600BC_transportation_2,wav [Thumbnail:2_11_3] Tab=Domestication,idh_c2500BC_food_1,wav [Thumbnail:2_11_6] Tab=Mason's tools,idh_c2500BC_tools_1,wav [Thumbnail:2_12_3] Tab=Honeybee,idh_c2400BC_food_1,wav [Thumbnail:2_12_4] Tab=Waterproofing,idh_c2400BC_materials_1,wav [Thumbnail:2_13_3] Tab=Domesticated horse,idh_c2300BC_food_1,wav,bmp [Thumbnail:2_13_4] Tab=Pottery,idh_c2300BC_materials_1,wav [Thumbnail:2_13_7] Tab=Oldest known map,idh_c2300BC_transportation_1,wav [Thumbnail:2_14_1] Tab=Stonehenge,idh_c2200BC_architecture_1,wav [Thumbnail:2_15_5] Tab=Oldest medical text,idh_c2100BC_medical_1,wav [Thumbnail:2_16_1] Tab=Bathroom,idh_c2000BC_architecture_1,wav [Thumbnail:2_16_3] Tab=Seed drill,idh_c2000BC_food_1,wav [Thumbnail:2_16_4] Tab=Perfumery,idh_c2000BC_materials_1,wav,bmp,"toilette of an Egyptian woman" [Thumbnail:2_16_6] Tab=Balance scales,idh_c2000BC_tools_1,wav Tab=Bellows,idh_c2000BC_tools_2,wav Tab=Looms,idh_c2000BC_tools_3,wav [Thumbnail:2_16_7] Tab=Postal system,idh_c2000BC_transportation_1,wav Tab=Paved roads,idh_c2000BC_transportation_2,wav Tab=Spoked wheels,idh_c2000BC_transportation_3,wav [Thumbnail:2_17_1] Tab=Oldest known arch,idh_c1900bc_architecture_1,wav [Thumbnail:2_17_3] Tab=Irrigation,idh_c1900bc_food_1,wav [Thumbnail:2_18_2] Tab=Early cuneiforms,idh_c1800BC_communications_1,wav,bmp,"cuneiform tablet" [Thumbnail:2_20_6] Tab=Plows,idh_c1600BC_tools_1,wav [Thumbnail:2_21_1] Tab=Monumental building,idh_c1500BC_architecture_1,wav Tab=Stonehenge,idh_c1500BC_architecture_2,wav,bmp,"Salisbury Plain, England" [Thumbnail:2_21_2] Tab=Early alphabet,idh_c1500BC_communications_1,wav [Thumbnail:2_21_3] Tab=Soybean,idh_c1500BC_food_1,wav [Thumbnail:2_21_6] Tab=Sundial,idh_c1500BC_tools_1,wav [Thumbnail:2_21_7] Tab=Barges,idh_c1500BC_transportation_1,wav [Thumbnail:2_22_3] Tab=Multiple cropping,idh_c1400BC_food_1,wav [Thumbnail:2_22_6] Tab=Water clock,idh_c1400BC_tools_1,wav,bmp,"Greek water clock, undated" Tab=Windlass,idh_c1400BC_tools_2,wav [Thumbnail:2_23_1] Tab=Ceremonial center,idh_c1300BC_architecture_1,wav [Thumbnail:2_24_4] Tab=Iron,idh_c1200BC_materials_1,wav [Thumbnail:2_24_6] Tab=Back-and-forth motion,idh_c1200BC_tools_1,wav [Thumbnail:2_25_6] Tab=oil lamps,idh_c1100BC_tools_1,wav [Thumbnail:2_26_2] Tab=Phoenician alphabet,idh_c1000BC_communications_1,wav [Thumbnail:2_26_3] Tab=Food preservation,idh_c1000BC_food_1,wav [Thumbnail:2_26_4] Tab=Dyes,idh_c1000BC_materials_1,wav Tab=Gold,idh_c1000BC_materials_2,wav Tab=Silk thread,idh_c1000BC_materials_3,wav [Thumbnail:2_27_1] Tab=Chavín de Huantar,idh_c900BC_architecture_1,wav [Thumbnail:2_28_6] Tab=Querns,idh_c800BC_tools_1,wav Tab=Sundials,idh_c800BC_tools_2,wav [Thumbnail:2_29_3] Tab=Incubators,idh_c700BC_food_1,wav [Thumbnail:2_29_4] Tab=Soldering,idh_c700BC_materials_1,wav [Thumbnail:2_29_6] Tab=Potter's wheel,idh_c700BC_tools_1,wav [Thumbnail:2_29_7] Tab=War galleys,idh_c700BC_transportation_1,wav,bmp [Thumbnail:2_30_2] Tab=Map of earth,idh_c600BC_communications_1,wav,bmp [Thumbnail:2_30_3] Tab=Fumigation,idh_c600BC_food_1,wav [Thumbnail:2_30_4] Tab=Potter's wheel,idh_c600BC_materials_1,wav [Thumbnail:2_30_6] Tab=Anchor,idh_c600BC_tools_1,wav [Thumbnail:2_30_7] Tab=Railroads,idh_c600BC_transportation_1,wav Tab=Canal,idh_c600BC_transportation_2,wav [Thumbnail:2_31_1] Tab=Parthenon,idh_c500BC_architecture_1,wav,bmp [Thumbnail:2_31_2] Tab=Optical telegraph,idh_c500BC_communications_1,wav,bmp [Thumbnail:2_31_3] Tab=Farming Techniques,idh_c500BC_food_1,wav [Thumbnail:2_31_6] Tab=Safety pins,idh_c500BC_tools_1,wav [Thumbnail:2_31_7] Tab=Sailing vessel,idh_c500BC_transportation_1,wav [Thumbnail:2_32_1] Tab=Maiden Castle,idh_c400BC_architecture_1,wav [Thumbnail:2_32_6] Tab=Locks and keys,idh_c400BC_tools_1,wav Tab=Catapults,idh_c400BC_tools_2,wav,bmp,"Roman catapult, from painting by Poynter" Tab=Water clock,idh_c400BC_tools_3,wav [Thumbnail:2_32_7] Tab=Quinquereme,idh_c400BC_transportation_1,wav,bmp [Thumbnail:2_33_1] Tab=Great Wall of China,idh_c300BC_architecture_1,wav,bmp Tab=Colossus of Rhodes,idh_c300BC_architecture_2,wav,bmp [Thumbnail:2_33_4] Tab=Cast iron,idh_c300BC_materials_1,wav Tab=Parchment,idh_c300BC_materials_2,wav [Thumbnail:2_33_6] Tab=Screws,idh_c300BC_tools_1,wav Tab=Convex lenses,idh_c300BC_tools_2,wav Tab=Simple machines,idh_c300BC_tools_3,wav [Thumbnail:2_34_3] Tab=Baking,idh_c200BC_food_1,wav [Thumbnail:2_34_4] Tab=Cast iron; concrete,idh_c200BC_materials_1,wav [Thumbnail:2_34_6] Tab=Astrolabe,idh_c200BC_tools_1,wav,bmp Tab=Universal joint,idh_c200BC_tools_2,wav [Thumbnail:2_34_7] Tab=Supergalley,idh_c200BC_transportation_1,wav,bmp Tab=Dry dock,idh_c200BC_transportation_2,wav [Thumbnail:2_35_2] Tab=Julian calendar,idh_c100BC_communications_1,wav [Thumbnail:2_35_4] Tab=Glassblowing,idh_c100BC_materials_1,wav,bmp [Thumbnail:2_35_5] Tab=Ayurveda,idh_c100BC_medical_1,wav [Thumbnail:2_35_6] Tab=Early computers,idh_c100BC_tools_1,wav [Thumbnail:2_35_7] Tab=Parachute,idh_c100BC_transportation_1,wav [Thumbnail:2_36_1] Tab=Suspension bridges,idh_c0_architecture_1,wav [Thumbnail:2_36_5] Tab=Medical use of alcohol,idh_c0_medical_1,wav [Thumbnail:2_36_6] Tab=Belt drive,idh_c0_tools_1,wav [Thumbnail:2_37_1] Tab=Colosseum,idh_c50CE_architecture_1,wav,bmp [Thumbnail:2_37_6] Tab=Cranks,idh_c50CE_tools_1,wav Tab=Chain pump,idh_c50CE_tools_2,wav [Thumbnail:2_38_1] Tab=Truss,idh_c100CE_architecture_1,wav,bmp,"The Pantheon" [Thumbnail:2_38_3] Tab=Insecticide,idh_c100CE_food_1,wav [Thumbnail:2_38_4] Tab=Glass windowpanes,idh_c100CE_materials_1,wav Tab=Writing paper,idh_c100CE_materials_2,wav [Thumbnail:2_38_6] Tab=Catapult,idh_c100CE_tools_1,wav Tab=Seismograph,idh_c100CE_tools_2,wav [Thumbnail:2_39_2] Tab=Nazca figures,idh_c150CE_communications_1,wav,bmp [Thumbnail:2_39_5] Tab=Pulse,idh_c150CE_medical_1,wav [Thumbnail:2_40_2] Tab=Hieroglyphics,idh_c200CE_communications_1,wav [Thumbnail:2_40_4] Tab=Porcelain,idh_c200CE_materials_1,wav,bmp,"Chinese clay workers. From Julien's ""Histoire de la Porcelain Chinoise""" [Thumbnail:2_40_6] Tab=Whippletree,idh_c200CE_tools_1,wav [Thumbnail:2_41_4] Tab=Parchment,idh_c250CE_materials_1,wav [Thumbnail:2_41_6] Tab=Compass,idh_c250CE_tools_1,wav [Thumbnail:2_42_1] Tab=Arches,idh_c300CE_architecture_1,wav [Thumbnail:2_42_4] Tab=Coal,idh_c300CE_materials_1,wav Tab=Knitted fabrics,idh_c300CE_materials_2,wav [Thumbnail:2_42_5] Tab=Cranks,idh_c300CE_medical_1,wav [Thumbnail:2_43_1] Tab=Public lighting,idh_c350CE_architecture_1,wav [Thumbnail:2_44_1] Tab=Bamiyan,idh_c400CE_architecture_1,wav Tab=Anasazi caves,idh_c400CE_architecture_2,wav,bmp [Thumbnail:2_44_4] Tab=Steel,idh_c400CE_materials_1,wav [Thumbnail:2_44_6] Tab=Hydroscope,idh_c400CE_tools_1,wav,bmp,"Hypatia" [Thumbnail:2_44_7] Tab=Stirrups,idh_c400CE_transportation_1,wav [Thumbnail:2_45_1] Tab=Domes,idh_c500CE_architecture_1,wav,bmp [Thumbnail:2_45_4] Tab=Silk,idh_c500CE_materials_1,wav [Thumbnail:2_45_6] Tab=Water clock,idh_c500CE_tools_1,wav Tab=Sifting machine,idh_c500CE_tools_2,wav [Thumbnail:2_46_4] Tab=Toilet paper,idh_c550CE_materials_1,wav Tab=Matches,idh_c550CE_materials_2,wav [Thumbnail:2_47_2] Tab=Newspapers,idh_c600CE_communications_1,wav [Thumbnail:2_47_3] Tab=Forks,idh_c600CE_food_1,wav [Thumbnail:2_48_1] Tab=Dome of the Rock,idh_c650CE_architecture_1,wav,bmp [Thumbnail:2_48_5] Tab=Lead poisoning,idh_c650CE_medical_1,wav [Thumbnail:2_49_2] Tab=Earliest known text,idh_c700CE_communications_1,wav [Thumbnail:2_51_3] Tab=Horse collar,idh_c800CE_food_1,wav [Thumbnail:2_51_4] Tab=Blast furnaces,idh_c800CE_materials_1,wav [Thumbnail:2_52_4] Tab=Gunpowder,idh_c850CE_materials_1,wav [Thumbnail:2_53_2] Tab=Zero,idh_c900CE_communications_1,wav [Thumbnail:2_53_7] Tab=Horseshoe,idh_c900CE_transportation_1,wav [Thumbnail:2_54_6] Tab=Mechanical clocks,idh_c950CE_tools_1,wav [Thumbnail:2_54_7] Tab=Discovery,idh_c950CE_transportation_1,wav [Thumbnail:2_55_2] Tab=Arabic numbers,idh_c1000CE_communications_1,wav [Thumbnail:2_55_3] Tab=Lemon plant,idh_c1000CE_food_1,wav [Thumbnail:2_55_4] Tab=Smelting,idh_c1000CE_materials_1,wav [Thumbnail:3_2_7] Tab=Well drilling,idh_1010_tools_1,wav [Thumbnail:3_3_8] Tab=Modern ships,idh_1020_transportation_1,wav [Thumbnail:3_4_1] Tab=Notre Dame,idh_1030_architecture_1,wav,bmp [Thumbnail:3_4_7] Tab=Spinning wheel,idh_1030_tools_1,wav [Thumbnail:3_5_2] Tab=Movable type,idh_1040_communications_1,wav [Thumbnail:3_5_5] Tab=Gunpowder,idh_1040_materials_1,wav [Thumbnail:3_7_1] Tab=Westminster,idh_1060_architecture_1,wav [Thumbnail:3_8_1] Tab=Windsor Castle,idh_1070_architecture_1,wav,bmp [Thumbnail:3_9_1] Tab=Benedictine Abbey,idh_1080_architecture_1,wav,bmp [Thumbnail:3_11_1] Tab=Pueblo Bonito,idh_1100_architecture_1,wav,bmp [Thumbnail:3_11_2] Tab=Block printing,idh_1100_communications_1,wav Tab=Multicolor printing,idh_1100_communications_2,wav [Thumbnail:3_11_3] Tab=Windmills,idh_1100_energy_1,wav [Thumbnail:3_11_4] Tab=Brandy,idh_1100_food_1,wav [Thumbnail:3_12_1] Tab=Angkor Wat,idh_1110_architecture_1,wav,bmp [Thumbnail:3_12_8] Tab=Dams,idh_1110_transportation_1,wav,bmp [Thumbnail:3_13_1] Tab=Flying buttresses,idh_1120_architecture_1,wav [Thumbnail:3_14_1] Tab=Cluniac style,idh_1130_architecture_1,wav Tab=Lighthouse,idh_1130_architecture_2,wav [Thumbnail:3_15_1] Tab=Cisterian style,idh_1140_architecture_1,wav [Thumbnail:3_16_1] Tab=Lighthouse,idh_1150_architecture_1,wav [Thumbnail:3_16_5] Tab=Pottery,idh_1150_materials_1,wav [Thumbnail:3_16_7] Tab=Astrolabe,idh_1150_tools_1,wav [Thumbnail:3_18_1] Tab=London Bridge,idh_1170_architecture_1,wav [Thumbnail:3_19_1] Tab=Marco Polo Bridge,idh_1180_architecture_1,wav [Thumbnail:3_19_3] Tab=Windmills,idh_1180_energy_1,wav,bmp [Thumbnail:3_19_5] Tab=Paper mill,idh_1180_materials_1,wav [Thumbnail:3_19_7] Tab=Candle clock,idh_1180_tools_1,wav [Thumbnail:3_19_8] Tab=Rudder,idh_1180_transportation_1,wav [Thumbnail:3_20_4] Tab=Fishing reel,idh_1190_food_1,wav [Thumbnail:3_20_7] Tab=Simple machines,idh_1190_tools_1,wav [Thumbnail:3_20_8] Tab=Magnetic compass,idh_1190_transportation_1,wav [Thumbnail:3_21_1] Tab=Hammer-beam truss,idh_1200_architecture_1,wav [Thumbnail:3_21_3] Tab=Chimneys,idh_1200_energy_1,wav [Thumbnail:3_21_5] Tab=Smelting,idh_1200_materials_1,wav [Thumbnail:3_21_8] Tab=Canal,idh_1200_transportation_1,wav [Thumbnail:3_23_7] Tab=Gunpowder,idh_1220_tools_1,wav [Thumbnail:3_24_2] Tab=Kites,idh_1230_communications_1,wav,bmp [Thumbnail:3_24_7] Tab=Hydraulic saw,idh_1230_tools_1,wav [Thumbnail:3_26_2] Tab=Carrier pigeon,idh_1250_communications_1,wav,bmp,"15th Century representation" [Thumbnail:3_26_7] Tab=Buttons,idh_1250_tools_1,wav [Thumbnail:3_27_6] Tab=Eyeglasses,idh_1260_medical_1,wav [Thumbnail:3_28_4] Tab=Whiskey,idh_1270_food_1,wav [Thumbnail:3_28_7] Tab=Throwing silk,idh_1270_tools_1,wav [Thumbnail:3_29_6] Tab=Eyeglasses,idh_1280_medical_1,wav [Thumbnail:3_29_7] Tab=Spinning wheel,idh_1280_tools_1,wav Tab=Mechanical clocks,idh_1280_tools_2,wav [Thumbnail:3_30_2] Tab=Block printing,idh_1290_communications_1,wav [Thumbnail:3_30_5] Tab=Gunpowder,idh_1290_materials_1,wav [Thumbnail:3_31_4] Tab=Tulips,idh_1300_food_1,wav,bmp [Thumbnail:3_31_7] Tab=Hourglass,idh_1300_tools_1,wav,bmp [Thumbnail:3_32_6] Tab=Body snatching,idh_1310_medical_1,wav [Thumbnail:3_33_6] Tab=Surgery,idh_1320_medical_1,wav [Thumbnail:3_33_7] Tab=Bellows,idh_1320_tools_1,wav [Thumbnail:3_33_8] Tab=Canal,idh_1320_transportation_1,wav [Thumbnail:3_34_7] Tab=Crank handle,idh_1330_tools_1,wav [Thumbnail:3_35_3] Tab=Windmills,idh_1340_energy_1,wav,bmp,"17th Century copper engraving" [Thumbnail:3_35_5] Tab=Blast furnace,idh_1340_materials_1,wav [Thumbnail:3_35_7] Tab=Astronomical clock,idh_1340_tools_1,wav,bmp [Thumbnail:3_35_8] Tab=Suspensions,idh_1340_transportation_1,wav [Thumbnail:3_37_6] Tab=Treatments,idh_1360_medical_1,wav [Thumbnail:3_37_7] Tab=Modern clock,idh_1360_tools_1,wav Tab=Pipe organ,idh_1360_tools_2,wav [Thumbnail:3_38_4] Tab=Forks,idh_1370_food_1,wav [Thumbnail:3_38_5] Tab=Pottery,idh_1370_materials_1,wav [Thumbnail:3_38_7] Tab=Cannon,idh_1370_tools_1,wav [Thumbnail:3_39_7] Tab=Mechanical clock,idh_1380_tools_1,wav [Thumbnail:3_40_2] Tab=Metal type,idh_1390_communications_1,wav [Thumbnail:3_40_8] Tab=Four-wheeled cart,idh_1390_transportation_1,wav [Thumbnail:3_41_1] Tab=Sewers,idh_1400_architecture_1,wav [Thumbnail:3_41_2] Tab=Ptolemy's Geography,idh_1400_communications_1,wav [Thumbnail:3_41_4] Tab=Coffee,idh_1400_food_1,wav [Thumbnail:3_41_5] Tab=Oil paints,idh_1400_materials_1,wav [Thumbnail:3_41_7] Tab=Suction pump,idh_1400_tools_1,wav [Thumbnail:3_41_8] Tab=Carvel ships,idh_1400_transportation_1,wav Tab=Lateen sail,idh_1400_transportation_2,wav,bmp Tab=Chinese junk,idh_1400_transportation_3,wav,bmp [Thumbnail:3_42_4] Tab=Fishing nets,idh_1410_food_1,wav [Thumbnail:3_42_5] Tab=Longbows,idh_1410_materials_1,wav [Thumbnail:3_42_6] Tab=Medicinal plants,idh_1410_medical_1,wav [Thumbnail:3_43_2] Tab=Oil paints,idh_1420_communications_1,wav,bmp,"""The Arnolfini Wedding,"" Jan Van Eyck" [Thumbnail:3_43_7] Tab=Drilling,idh_1420_tools_1,wav [Thumbnail:3_43_8] Tab=Patents,idh_1420_transportation_1,wav [Thumbnail:3_44_7] Tab=Drive belt,idh_1430_tools_1,wav [Thumbnail:3_45_2] Tab=Movable type,idh_1440_communications_1,wav,bmp,"Gutenberg taking the first proof" [Thumbnail:3_45_4] Tab=Food preservation,idh_1440_food_1,wav [Thumbnail:3_46_2] Tab=Printing,idh_1450_communications_1,wav [Thumbnail:3_46_5] Tab=Separation,idh_1450_materials_1,wav [Thumbnail:3_46_6] Tab=Gold fillings,idh_1450_medical_1,wav [Thumbnail:3_46_8] Tab=Passenger coach,idh_1450_transportation_1,wav [Thumbnail:3_47_6] Tab=Surgery,idh_1460_medical_1,wav [Thumbnail:3_48_6] Tab=Canon of Medicine,idh_1470_medical_1,wav,bmp [Thumbnail:3_48_8] Tab=Tunnels,idh_1470_transportation_1,wav [Thumbnail:3_49_2] Tab=Printing,idh_1480_communications_1,wav [Thumbnail:3_49_8] Tab=Parachute,idh_1480_transportation_1,wav,bmp,"da Vinci's drawing of a parachute" [Thumbnail:3_50_2] Tab=Writing utensils,idh_1490_communications_1,wav,bmp Tab=Globe map,idh_1490_communications_2,wav,bmp [Thumbnail:3_50_3] Tab=Oil lamp,idh_1490_energy_1,wav,bmp,"da Vinci's drawing of an oil lamp" [Thumbnail:3_50_5] Tab=Rubber,idh_1490_materials_1,wav [Thumbnail:3_50_6] Tab=Toothbrush,idh_1490_medical_1,wav,bmp Tab=Dissection,idh_1490_medical_2,wav,bmp [Thumbnail:3_50_7] Tab=Pendulum clock,idh_1490_tools_1,wav,bmp Tab=Roller bearings,idh_1490_tools_2,wav,bmp,"model of da Vinci's roller bearings" [Thumbnail:3_50_8] Tab=Flying machine,idh_1490_transportation_1,wav,bmp,"da Vinci's drawing of a flying machine" Tab=Canals,idh_1490_transportation_2,wav,bmp,"da Vinci's lock design" [Thumbnail:3_51_4] Tab=Agriculture,idh_1500_food_1,wav [Thumbnail:3_51_6] Tab=Cesarean operation,idh_1500_medical_1,wav,bmp,"16th Century representation" [Thumbnail:3_51_7] Tab=Wheel lock musket,idh_1500_tools_1,wav [Thumbnail:3_51_8] Tab=Helicopter,idh_1500_transportation_1,wav,bmp,"da Vinci's helicopter design" [Thumbnail:3_52_6] Tab=Medical school,idh_1510_medical_1,wav [Thumbnail:3_52_7] Tab=Polimetrum,idh_1510_tools_1,wav [Thumbnail:3_53_4] Tab=Importation,idh_1520_food_1,wav [Thumbnail:3_53_6] Tab=Opium tincture,idh_1520_medical_1,wav [Thumbnail:3_53_7] Tab=Spinning wheels,idh_1520_tools_1,wav [Thumbnail:3_54_1] Tab=Surveying,idh_1530_architecture_1,wav,bmp [Thumbnail:3_54_6] Tab=Dentistry,idh_1530_medical_1,wav [Thumbnail:3_54_7] Tab=Spinning wheel,idh_1530_tools_1,wav [Thumbnail:3_54_8] Tab=Diving bell,idh_1530_transportation_1,wav [Thumbnail:3_55_5] Tab=Cobalt,idh_1540_materials_1,wav [Thumbnail:3_55_6] Tab=Surgery,idh_1540_medical_1,wav [Thumbnail:3_56_2] Tab=Camera obscura,idh_1550_communications_1,wav,bmp [Thumbnail:3_56_4] Tab=Potato,idh_1550_food_1,wav [Thumbnail:3_56_5] Tab=Mirrors,idh_1550_materials_1,wav [Thumbnail:3_57_2] Tab=Pencils,idh_1560_communications_1,wav [Thumbnail:3_57_7] Tab=Lathe,idh_1560_tools_1,wav [Thumbnail:3_58_1] Tab=Chimneys and windows,idh_1570_architecture_1,wav [Thumbnail:3_58_5] Tab=Pottery,idh_1570_materials_1,wav [Thumbnail:3_58_7] Tab=Lathe,idh_1570_tools_1,wav Tab=Ribbon loom,idh_1570_tools_2,wav [Thumbnail:3_58_8] Tab=Ship's log,idh_1570_transportation_1,wav [Thumbnail:3_59_1] Tab=Flush toilet,idh_1580_architecture_1,wav [Thumbnail:3_59_3] Tab=Water turbine,idh_1580_energy_1,wav [Thumbnail:3_59_4] Tab=Flour mill,idh_1580_food_1,wav,bmp [Thumbnail:3_59_5] Tab=Pockets,idh_1580_materials_1,wav [Thumbnail:3_60_1] Tab=Globe Theater,idh_1590_architecture_1,wav,bmp,""A Midsummer Night's Dream"" [Thumbnail:3_60_7] Tab=Thermoscope,idh_1590_tools_1,wav [Thumbnail:3_60_8] Tab=Ironclad warship,idh_1590_transportation_1,wav [Thumbnail:3_61_1] Tab=Pont Neuf,idh_1600_architecture_1,wav,bmp [Thumbnail:3_61_3] Tab=Coke,idh_1600_energy_1,wav [Thumbnail:3_61_7] Tab=Microscope and telescope,idh_1600_tools_1,wav,bmp,"Lippershey inventing the telescope" [Thumbnail:3_62_4] Tab=Tea,idh_1610_food_1,wav,bmp,"Chinese tea plant" [Thumbnail:3_62_5] Tab=Smelting,idh_1610_materials_1,wav [Thumbnail:3_62_7] Tab=Napier's bones,idh_1610_tools_1,wav,bmp [Thumbnail:3_63_7] Tab=Slide rule; calculator,idh_1620_tools_1,wav,bmp [Thumbnail:3_63_8] Tab=Submarine,idh_1620_transportation_1,wav [Thumbnail:3_64_7] Tab=Micrometer,idh_1630_tools_1,wav [Thumbnail:3_64_8] Tab=Wooden rails,idh_1630_transportation_1,wav [Thumbnail:3_65_2] Tab=Magic lantern,idh_1640_communications_1,wav,bmp [Thumbnail:3_65_7] Tab=Thermometer,idh_1640_tools_1,wav Tab=Pascaline,idh_1640_tools_2,wav,bmp Tab=Barometer,idh_1640_tools_3,wav,bmp Tab=Air pump,idh_1640_tools_4,wav,bmp [Thumbnail:3_65_8] Tab=Canal,idh_1640_transportation_1,wav [Thumbnail:3_66_3] Tab=Electricity,idh_1650_energy_1,wav [Thumbnail:3_66_7] Tab=Thermometer,idh_1650_tools_1,wav,bmp [Thumbnail:3_67_2] Tab=Mathematical language,idh_1660_communications_1,wav [Thumbnail:3_67_5] Tab=Cast iron pipes,idh_1660_materials_1,wav [Thumbnail:3_67_6] Tab=Blood transfusion,idh_1660_medical_1,wav,bmp Tab=Breathing,idh_1660_medical_2,wav [Thumbnail:3_67_8] Tab=Public transportation,idh_1660_transportation_1,wav [Thumbnail:3_68_4] Tab=Champagne,idh_1670_food_1,wav [Thumbnail:3_68_7] Tab=Early computers,idh_1670_tools_1,wav [Thumbnail:3_69_1] Tab=Caissons,idh_1680_architecture_1,wav,bmp [Thumbnail:3_69_3] Tab=Steam power,idh_1680_energy_1,wav,bmp,"Sir Isaac Newton" [Thumbnail:3_69_6] Tab=Fingerprints,idh_1680_medical_1,wav [Thumbnail:3_69_7] Tab=Centrifugal pump,idh_1680_tools_1,wav [Thumbnail:3_69_8] Tab=Satellite,idh_1680_transportation_1,wav [Thumbnail:3_70_3] Tab=Steam pump,idh_1690_energy_1,wav,bmp [Thumbnail:3_70_7] Tab=Stepped Reckoner,idh_1690_tools_1,wav,bmp [Thumbnail:3_71_2] Tab=Daily newspaper,idh_1700_communications_1,wav [Thumbnail:3_71_3] Tab=Electric generator,idh_1700_energy_1,wav [Thumbnail:3_71_4] Tab=Machine drill,idh_1700_food_1,wav [Thumbnail:3_71_5] Tab=Suspenders,idh_1700_materials_1,wav [Thumbnail:3_71_6] Tab=Inoculation,idh_1700_medical_1,wav Tab=Pulse,idh_1700_medical_2,wav [Thumbnail:3_71_7] Tab=Lathe,idh_1700_tools_1,wav [Thumbnail:3_72_2] Tab=Color printing,idh_1710_communications_1,wav [Thumbnail:3_72_3] Tab=Steam engine,idh_1710_energy_1,wav,bmp,"1720 version" [Thumbnail:3_72_7] Tab=Eight-day clock,idh_1710_tools_1,wav,bmp [Thumbnail:3_73_2] Tab=Photography,idh_1720_communications_1,wav [Thumbnail:3_73_4] Tab=Cross-fertilization,idh_1720_food_1,wav [Thumbnail:3_73_6] Tab=Blood pressure,idh_1720_medical_1,wav [Thumbnail:3_74_5] Tab=Rubber,idh_1730_materials_1,wav [Thumbnail:3_74_6] Tab=Tracheotomy,idh_1730_medical_1,wav [Thumbnail:3_74_7] Tab=Sextant,idh_1730_tools_1,wav,bmp [Thumbnail:4_1_7] Tab=Flying shuttle loom,idh_1733_tools_1,wav [Thumbnail:4_2_5] Tab=Coke,idh_1735_materials_1,wav [Thumbnail:4_2_6] Tab=Surgery,idh_1735_medical_1,wav [Thumbnail:4_3_1] Tab=Caisson,idh_1737_architecture_1,wav [Thumbnail:4_4_5] Tab=Coal,idh_1739_materials_1,wav [Thumbnail:4_4_7] Tab=Firearms,idh_1739_tools_1,wav [Thumbnail:4_5_5] Tab=Steel,idh_1741_materials_1,wav [Thumbnail:4_6_3] Tab=Franklin stove,idh_1743_energy_1,wav [Thumbnail:4_7_3] Tab=Electricity,idh_1745_energy_1,wav,bmp,"Musschenbrook demonstrating the Leiden jar" [Thumbnail:4_7_6] Tab=Bandage,idh_1745_medical_1,wav [Thumbnail:4_8_4] Tab=Beet sugar,idh_1747_food_1,wav [Thumbnail:4_8_5] Tab=Blast furnace,idh_1747_materials_1,wav [Thumbnail:4_8_6] Tab=Physiology,idh_1747_medical_1,wav [Thumbnail:4_9_3] Tab=Electricity,idh_1749_energy_1,wav [Thumbnail:4_9_7] Tab=Artificial magnet,idh_1749_tools_1,wav [Thumbnail:4_10_3] Tab=Electricity,idh_1751_energy_1,wav,bmp [Thumbnail:4_10_6] Tab=Mental health,idh_1751_medical_1,wav [Thumbnail:4_11_6] Tab=Scurvy,idh_1753_medical_1,wav [Thumbnail:4_12_5] Tab=Cotton,idh_1755_materials_1,wav [Thumbnail:4_12_6] Tab=Dentistry,idh_1755_medical_1,wav,bmp [Thumbnail:4_12_8] Tab=Diving bell,idh_1755_transportation_1,wav,bmp [Thumbnail:4_13_7] Tab=Ribbing machine,idh_1757_tools_1,wav [Thumbnail:4_14_2] Tab=Pencils,idh_1759_communications_1,wav [Thumbnail:4_14_8] Tab=Chronometer,idh_1759_transportation_1,wav,bmp,"Harrison's second machine" [Thumbnail:4_15_6] Tab=Pathology,idh_1761_medical_1,wav [Thumbnail:4_16_5] Tab=Pottery,idh_1763_materials_1,wav,bmp,"Wedgwood porcelain" [Thumbnail:4_16_6] Tab=Medical society,idh_1763_medical_1,wav [Thumbnail:4_16_7] Tab=Ratchet mechanism,idh_1763_tools_1,wav Tab=Spinning jenny,idh_1763_tools_2,wav,bmp [Thumbnail:4_17_3] Tab=Steam engine,idh_1765_energy_1,wav,bmp [Thumbnail:4_17_4] Tab=Food preservation,idh_1765_food_1,wav [Thumbnail:4_17_5] Tab=Cast iron rails,idh_1765_materials_1,wav [Thumbnail:4_17_6] Tab=Medical school,idh_1765_medical_1,wav [Thumbnail:4_17_7] Tab=Electrometer,idh_1765_tools_1,wav Tab=Electroscope,idh_1765_tools_2,wav [Thumbnail:4_18_6] Tab=Lead poisoning,idh_1767_medical_1,wav [Thumbnail:4_18_7] Tab=Hydrometer,idh_1767_tools_1,wav [Thumbnail:4_19_7] Tab=Automatic watch,idh_1769_tools_1,wav [Thumbnail:4_19_8] Tab=Automobile,idh_1769_transportation_1,wav,bmp [Thumbnail:4_20_2] Tab=Encyclopedia,idh_1771_communications_1,wav [Thumbnail:4_21_1] Tab=Structural analysis,idh_1773_architecture_1,wav [Thumbnail:4_21_6] Tab=Hypnotism,idh_1773_medical_1,wav [Thumbnail:4_21_7] Tab=Early computers,idh_1773_tools_1,wav [Thumbnail:4_22_3] Tab=Electricity,idh_1775_energy_1,wav [Thumbnail:4_22_7] Tab=Firearms,idh_1775_tools_1,wav [Thumbnail:4_22_8] Tab=Submarine,idh_1775_transportation_1,wav [Thumbnail:4_23_3] Tab=Central heating,idh_1777_energy_1,wav [Thumbnail:4_23_7] Tab=Torpedo,idh_1777_tools_1,wav [Thumbnail:4_24_2] Tab=Fountain pen,idh_1779_communications_1,wav [Thumbnail:4_24_3] Tab=Steam engine,idh_1779_energy_1,wav [Thumbnail:4_24_7] Tab=Spinning mule,idh_1779_tools_1,wav [Thumbnail:4_24_8] Tab=Bicycle,idh_1779_transportation_1,wav,bmp [Thumbnail:4_25_3] Tab=Steam engine,idh_1781_energy_1,wav Tab=Steam engine,idh_1781_energy_2,wav,bmp,"steam engine (detail)" Tab=Steam heat,idh_1781_energy_3,wav [Thumbnail:4_25_8] Tab=Steamboat,idh_1781_transportation_1,wav [Thumbnail:4_26_2] Tab=Haüy alphabet,idh_1783_communications_1,wav [Thumbnail:4_26_4] Tab=Flour mill,idh_1783_food_1,wav Tab=Threshing machine,idh_1783_food_2,wav [Thumbnail:4_26_5] Tab=Bleaching,idh_1783_materials_1,wav [Thumbnail:4_26_6] Tab=Eyeglasses,idh_1783_medical_1,wav,bmp [Thumbnail:4_26_8] Tab=Balloon flight,idh_1783_transportation_1,wav,bmp,"first Channel crossing" [Thumbnail:4_27_8] Tab=Balloon flight,idh_1785_transportation_1,wav Tab=Railroads,idh_1785_transportation_2,wav,bmp [Thumbnail:4_28_8] Tab=Steamboat,idh_1787_transportation_1,wav,bmp,"Fitch's first steamboat" [Thumbnail:4_29_3] Tab=Steam-driven factory,idh_1789_energy_1,wav [Thumbnail:4_29_6] Tab=Dentistry,idh_1789_medical_1,wav [Thumbnail:4_29_7] Tab=Wool-combing machine,idh_1789_tools_1,wav [Thumbnail:4_30_1] Tab=Truss bridge,idh_1791_architecture_1,wav [Thumbnail:4_30_3] Tab=Gas turbine,idh_1791_energy_1,wav [Thumbnail:4_30_7] Tab=Corderlier,idh_1791_tools_1,wav [Thumbnail:4_31_2] Tab=Telegraph,idh_1793_communications_1,wav [Thumbnail:4_31_4] Tab=Cotton gin,idh_1793_food_1,wav [Thumbnail:4_31_6] Tab=Ligature,idh_1793_medical_1,wav [Thumbnail:4_31_7] Tab=Cotton sewing thread,idh_1793_tools_1,wav [Thumbnail:4_31_8] Tab=Parachute,idh_1793_transportation_1,wav [Thumbnail:4_32_1] Tab=Suspension bridge,idh_1795_architecture_1,wav [Thumbnail:4_32_2] Tab=Pencil lead,idh_1795_communications_1,wav [Thumbnail:4_32_6] Tab=Scurvy,idh_1795_medical_1,wav [Thumbnail:4_32_7] Tab=Hydraulic press,idh_1795_tools_1,wav [Thumbnail:4_32_8] Tab=Steam boat,idh_1795_transportation_1,wav [Thumbnail:4_33_2] Tab=Lithography,idh_1797_communications_1,wav [Thumbnail:4_33_3] Tab=Alcohol,idh_1797_energy_1,wav [Thumbnail:4_33_5] Tab=Paper,idh_1797_materials_1,wav [Thumbnail:4_33_6] Tab=Inoculation,idh_1797_medical_1,wav [Thumbnail:4_33_7] Tab=Lathe,idh_1797_tools_1,wav [Thumbnail:4_33_8] Tab=Screw propeller,idh_1797_transportation_1,wav [Thumbnail:4_34_3] Tab=Voltaic pile,idh_1799_energy_1,wav,bmp,"Count Alessandro Volta" [Thumbnail:4_34_4] Tab=Agriculture,idh_1799_food_1,wav [Thumbnail:4_34_5] Tab=Bleaching powder,idh_1799_materials_1,wav [Thumbnail:4_34_6] Tab=Laughing gas,idh_1799_medical_1,wav [Thumbnail:4_34_7] Tab=Lathe,idh_1799_tools_1,wav [Thumbnail:4_34_8] Tab=Submarine,idh_1799_transportation_1,wav [Thumbnail:4_35_1] Tab=Lighting,idh_1801_architecture_1,wav [Thumbnail:4_35_2] Tab=Camera obscura,idh_1801_communications_1,wav,bmp [Thumbnail:4_35_4] Tab=Beet sugar,idh_1801_food_1,wav [Thumbnail:4_35_6] Tab=Astigmatism,idh_1801_medical_1,wav [Thumbnail:4_35_7] Tab=Blowpipe,idh_1801_tools_1,wav [Thumbnail:4_35_8] Tab=Railroads,idh_1801_transportation_1,wav Tab=Steamboat,idh_1801_transportation_2,wav [Thumbnail:4_36_3] Tab=Steam engine,idh_1803_energy_1,wav [Thumbnail:4_36_4] Tab=Food preservation,idh_1803_food_1,wav [Thumbnail:4_36_8] Tab=Steam locomotive,idh_1803_transportation_1,wav [Thumbnail:4_37_7] Tab=Jacquard loom,idh_1805_tools_1,wav,bmp,"1835 version" [Thumbnail:4_38_2] Tab=Camera lucida,idh_1807_communications_1,wav,bmp [Thumbnail:4_38_3] Tab=Steam engine,idh_1807_energy_1,wav [Thumbnail:4_38_5] Tab=Gunpowder,idh_1807_materials_1,wav [Thumbnail:4_38_7] Tab=Paper,idh_1807_tools_1,wav [Thumbnail:4_38_8] Tab=Steamboat,idh_1807_transportation_1,wav,bmp,"the Clermont" Tab=Flight,idh_1807_transportation_2,wav [Thumbnail:4_39_2] Tab=Telegraph,idh_1809_communications_1,wav [Thumbnail:4_39_4] Tab=Food preservation,idh_1809_food_1,wav [Thumbnail:4_39_5] Tab=Sodium carbonate,idh_1809_materials_1,wav [Thumbnail:4_39_7] Tab=Arc light,idh_1809_tools_1,wav [Thumbnail:4_40_1] Tab=Longest tunnel,idh_1811_architecture_1,wav [Thumbnail:4_40_2] Tab=Telegraph,idh_1811_communications_1,wav [Thumbnail:4_40_4] Tab=Maize,idh_1811_food_1,wav [Thumbnail:4_40_7] Tab=Firearms,idh_1811_tools_1,wav,bmp [Thumbnail:4_41_8] Tab=Steam locomotive,idh_1813_transportation_1,wav [Thumbnail:4_42_1] Tab=Gas lighting,idh_1815_architecture_1,wav [Thumbnail:4_42_3] Tab=Steam warship,idh_1815_energy_1,wav [Thumbnail:4_42_6] Tab=Stethoscope,idh_1815_medical_1,wav [Thumbnail:4_42_7] Tab=Round stocking frame,idh_1815_tools_1,wav [Thumbnail:4_42_8] Tab=Paved roads,idh_1815_transportation_1,wav [Thumbnail:4_43_3] Tab=Hot-air motor,idh_1817_energy_1,wav [Thumbnail:4_43_6] Tab=Iodine,idh_1817_medical_1,wav [Thumbnail:4_43_7] Tab=Milling machine,idh_1817_tools_1,wav [Thumbnail:4_43_8] Tab=Bicycle,idh_1817_transportation_1,wav [Thumbnail:4_44_1] Tab=Lattice truss,idh_1819_architecture_1,wav [Thumbnail:4_44_3] Tab=Incandescent lamp,idh_1819_energy_1,wav [Thumbnail:4_44_7] Tab=Galvanometer,idh_1819_tools_1,wav [Thumbnail:4_45_2] Tab=Photography,idh_1821_communications_1,wav [Thumbnail:4_45_3] Tab=Electromagnetism,idh_1821_energy_1,wav,bmp,"Faraday announcing the discovery to his wife on Christmas" [Thumbnail:4_45_4] Tab=Food preservation,idh_1821_food_1,wav [Thumbnail:4_45_6] Tab=Hysterectomy,idh_1821_medical_1,wav [Thumbnail:4_45_7] Tab=Lathe,idh_1821_tools_1,wav Tab=Difference Engine,idh_1821_tools_2,wav,bmp [Thumbnail:4_46_2] Tab=Braille alphabet,idh_1823_communications_1,wav,bmp,"a recipe in Braille" [Thumbnail:4_46_3] Tab=Internal combustion,idh_1823_energy_1,wav Tab=Turbine,idh_1823_energy_2,wav [Thumbnail:4_46_5] Tab=Fresnel lens,idh_1823_materials_1,wav,bmp [Thumbnail:4_47_1] Tab=Suspension bridge,idh_1825_architecture_1,wav,bmp,"Menai Straits Bridge" [Thumbnail:4_47_4] Tab=Insecticide,idh_1825_food_1,wav [Thumbnail:4_47_6] Tab=Tracheotomy,idh_1825_medical_1,wav [Thumbnail:4_47_8] Tab=Steam locomotive,idh_1825_transportation_1,wav,bmp [Thumbnail:4_48_3] Tab=Ohm's law,idh_1827_energy_1,wav [Thumbnail:4_48_4] Tab=Combine,idh_1827_food_1,wav [Thumbnail:4_48_5] Tab=Friction match,idh_1827_materials_1,wav,bmp [Thumbnail:4_48_6] Tab=Dentistry,idh_1827_medical_1,wav [Thumbnail:4_49_2] Tab=Typographer,idh_1829_communications_1,wav,bmp [Thumbnail:4_49_3] Tab=Radiator,idh_1829_energy_1,wav [Thumbnail:4_49_6] Tab=Bloodletting,idh_1829_medical_1,wav,bmp ""Bloodletting,"" engraving by Gillray, 1804" [Thumbnail:4_49_7] Tab=Electromagnetism,idh_1829_tools_1,wav [Thumbnail:4_50_1] Tab=Air-conditioning,idh_1831_architecture_1,wav Tab=London Bridge,idh_1831_architecture_2,wav [Thumbnail:4_50_2] Tab=Telegraph,idh_1831_communications_1,wav,bmp [Thumbnail:4_50_3] Tab=Electromagnetism,idh_1831_energy_1,wav [Thumbnail:4_50_6] Tab=Chloroform,idh_1831_medical_1,wav [Thumbnail:4_50_7] Tab=Analytical Engine,idh_1831_tools_1,wav,bmp [Thumbnail:4_50_8] Tab=Railroads,idh_1831_transportation_1,wav [Thumbnail:4_51_2] Tab=Camera obscura,idh_1833_communications_1,wav,bmp ""The Open Door,"" by William Henry Fox Talbot" Tab=Zoetrope,idh_1833_communications_2,wav Tab=Typewriter,idh_1833_communications_3,wav [Thumbnail:4_51_5] Tab=Nitric acid,idh_1833_materials_1,wav [Thumbnail:4_51_4] Tab=Crop rotation,idh_1833_food_1,wav [Thumbnail:4_51_7] Tab=Lenses,idh_1833_tools_1,wav [Thumbnail:4_52_2] Tab=Telegraph,idh_1835_communications_1,wav [Thumbnail:4_52_3] Tab=Daniell cell,idh_1835_energy_1,wav [Thumbnail:4_52_4] Tab=Horseshoes,idh_1835_food_1,wav [Thumbnail:4_52_7] Tab=Firearms,idh_1835_tools_1,wav,bmp [Thumbnail:4_53_2] Tab=Morse telegraph,idh_1837_communications_1,wav,bmp,"first telegraph" Tab=Daguerrotypes,idh_1837_communications_2,wav,bmp,"Louis-Jacques Daguerre. 1846 daguerreotype." Tab=English telegraph,idh_1837_communications_3,wav [Thumbnail:4_53_4] Tab=Steel plows,idh_1837_food_1,wav,bmp,"Deere's patent drawings" Tab=Combine,idh_1837_food_2,wav [Thumbnail:4_53_5] Tab=Nitrated paper,idh_1837_materials_1,wav Tab=Electroplating,idh_1837_materials_2,wav [Thumbnail:4_53_8] Tab=Transatlantic voyage,idh_1837_transportation_1,wav [Thumbnail:4_54_3] Tab=Photovoltaic effect,idh_1839_energy_1,wav [Thumbnail:4_54_4] Tab=Food preservation,idh_1839_food_1,wav [Thumbnail:4_54_5] Tab=Vulcanized rubber,idh_1839_materials_1,wav [Thumbnail:4_54_7] Tab=Oil-immersion microscope,idh_1839_tools_1,wav [Thumbnail:4_55_2] Tab=Photography,idh_1841_communications_1,wav [Thumbnail:4_55_3] Tab=Incandescent lamp,idh_1841_energy_1,wav [Thumbnail:4_55_4] Tab=Artificial fertilizer,idh_1841_food_1,wav [Thumbnail:4_55_5] Tab=Wirerope cable,idh_1841_materials_1,wav,bmp,"Brooklyn Bridge construction, 1872" [Thumbnail:4_55_6] Tab=Ether,idh_1841_medical_1,wav,bmp,"Reenactment at Boston General Hospital. 1853 daguerreotype." [Thumbnail:4_55_7] Tab=Squeezable tube,idh_1841_tools_1,wav,bmp,"toothpaste factory, 1890's" [Thumbnail:4_56_1] Tab=Compressed air drill,idh_1843_architecture_1,wav [Thumbnail:4_56_2] Tab=Typewriter,idh_1843_communications_1,wav Tab=Telegraph,idh_1843_communications_2,wav [Thumbnail:4_56_6] Tab=Disease prevention,idh_1843_medical_1,wav Tab=Cholera,idh_1843_medical_2,wav [Thumbnail:4_56_7] Tab=Aneroid barometer,idh_1843_tools_1,wav,bmp [Thumbnail:4_56_8] Tab=Clipper ship,idh_1843_transportation_1,wav,bmp,"1850's advertising card" Tab=Screw propeller,idh_1843_transportation_2,wav,bmp,"the Princeton" [Thumbnail:4_57_1] Tab=Suspension aqueduct,idh_1845_architecture_1,wav [Thumbnail:4_57_2] Tab=Telegraph cable,idh_1845_communications_1,wav [Thumbnail:4_57_3] Tab=Electric generator,idh_1845_energy_1,wav Tab=Electric lamp,idh_1845_energy_2,wav Tab=Arc lamp,idh_1845_energy_3,wav [Thumbnail:4_57_4] Tab=Gelatin dessert,idh_1845_food_1,wav [Thumbnail:4_57_5] Tab=Ebonite,idh_1845_materials_1,wav Tab=Nitroglycerin,idh_1845_materials_2,wav [Thumbnail:4_57_6] Tab=Anesthetic,idh_1845_medical_1,wav Tab=Syringe,idh_1845_medical_2,wav [Thumbnail:4_57_7] Tab=Sewing machine,idh_1845_tools_1,wav,bmp,"The inventor with his machine. 1860's poster." [Thumbnail:4_57_8] Tab=Rubber tire,idh_1845_transportation_1,wav,bmp,"Bicycle tire factory. 1896 woodcut." [Thumbnail:4_58_2] Tab=Fax machine,idh_1847_communications_1,wav Tab=Stereoscope,idh_1847_communications_2,wav,bmp,"viewing stereopticon pictures, c. 1900" [Thumbnail:4_59_3] Tab=Steam engine,idh_1849_energy_1,wav,bmp,"the Great Corliss Engine in Machinery Hall, 1876 Centennial, Philadelphia" Tab=Incandescent lamp,idh_1849_energy_2,wav [Thumbnail:4_59_5] Tab=Minnie ball,idh_1849_materials_1,wav [Thumbnail:4_59_6] Tab=Body temperature,idh_1849_medical_1,wav [Thumbnail:4_59_7] Tab=Yale lock,idh_1849_tools_1,wav [Thumbnail:4_59_8] Tab=Railroads,idh_1849_transportation_1,wav [Thumbnail:4_60_3] Tab=Induction coil,idh_1851_energy_1,wav [Thumbnail:4_60_6] Tab=Red blood cells,idh_1851_medical_1,wav [Thumbnail:4_60_7] Tab=Sewing machine,idh_1851_tools_1,wav,bmp [Thumbnail:4_60_8] Tab=Airships,idh_1851_transportation_1,wav [Thumbnail:4_61_1] Tab=Corrugated steel,idh_1853_architecture_1,wav [Thumbnail:4_61_2] Tab=Pneumatic system,idh_1853_communications_1,wav,bmp [Thumbnail:4_61_3] Tab=Electric lamp,idh_1853_energy_1,wav [Thumbnail:4_61_4] Tab=Potato chip,idh_1853_food_1,wav [Thumbnail:4_61_5] Tab=Aluminum,idh_1853_materials_1,wav [Thumbnail:4_61_6] Tab=Aspirin,idh_1853_medical_1,wav [Thumbnail:4_61_8] Tab=Elevator,idh_1853_transportation_1,wav [Thumbnail:4_62_2] Tab=Electric writing machine,idh_1855_communications_1,wav [Thumbnail:4_62_3] Tab=Oil by-products,idh_1855_energy_1,wav [Thumbnail:4_62_4] Tab=Condensed milk,idh_1855_food_1,wav [Thumbnail:4_62_5] Tab=Bessemer steel,idh_1855_materials_1,wav,bmp,"Bessemer's experiments" [Thumbnail:4_62_6] Tab=Mechanical circulation,idh_1855_medical_1,wav [Thumbnail:4_62_8] Tab=Suez Canal,idh_1855_transportation_1,wav,bmp,"British transports landing at El Cantara, Suez Canal, 1870" [Thumbnail:4_63_2] Tab=Early television,idh_1857_communications_1,wav [Thumbnail:4_63_3] Tab=Electric generator,idh_1857_energy_1,wav,bmp,"early von Siemens dynamo" [Thumbnail:4_63_4] Tab=Refrigeration,idh_1857_food_1,wav [Thumbnail:4_63_5] Tab=Toilet paper,idh_1857_materials_1,wav,bmp,"full-page advertisement, undated" [Thumbnail:4_63_6] Tab=Dental drill,idh_1857_medical_1,wav [Thumbnail:4_63_7] Tab=Pneumatic drill,idh_1857_tools_1,wav [Thumbnail:4_63_8] Tab=Elevator,idh_1857_transportation_1,wav Tab=Balloon flight,idh_1857_transportation_2,wav,bmp,""Napier Elevating Photography to the Level of Art," Honore Daumier. 1862 lithograph." [Thumbnail:4_64_2] Tab=Microdot photography,idh_1859_communications_1,wav [Thumbnail:4_64_3] Tab=Oil well,idh_1859_energy_1,wav,bmp,"the Drake well, 1860" [Thumbnail:4_64_5] Tab=Acetylene,idh_1859_materials_1,wav [Thumbnail:4_64_6] Tab=Cocaine,idh_1859_medical_1,wav [Thumbnail:4_64_7] Tab=Thermodynamics,idh_1859_tools_1,wav [Thumbnail:4_65_2] Tab=Telephone,idh_1861_communications_1,wav,bmp,"Reis's experiment" [Thumbnail:4_65_3] Tab=Electric generator,idh_1861_energy_1,wav Tab=Internal combustion,idh_1861_energy_2,wav [Thumbnail:4_65_5] Tab=Selenium,idh_1861_materials_1,wav [Thumbnail:4_65_6] Tab=Neurophysiology,idh_1861_medical_1,wav [Thumbnail:4_65_7] Tab=Ball bearings,idh_1861_tools_1,wav [Thumbnail:4_66_2] Tab=Fax machine,idh_1863_communications_1,wav [Thumbnail:4_66_3] Tab=Oil pipeline,idh_1863_energy_1,wav [Thumbnail:4_66_4] Tab=Pasteurization,idh_1863_food_1,wav [Thumbnail:4_66_5] Tab=TNT,idh_1863_materials_1,wav [Thumbnail:4_66_6] Tab=Sphygmograph,idh_1863_medical_1,wav Tab=Astigmatism,idh_1863_medical_2,wav [Thumbnail:4_66_7] Tab=Servomechanism,idh_1863_tools_1,wav Tab=Screw thread,idh_1863_tools_2,wav [Thumbnail:4_66_8] Tab=Automobile,idh_1863_transportation_1,wav [Thumbnail:4_67_2] Tab=Rotary press,idh_1865_communications_1,wav,bmp Tab=Radio,idh_1865_communications_2,wav [Thumbnail:4_67_4] Tab=Bran,idh_1865_food_1,wav [Thumbnail:4_67_5] Tab=Celluloid,idh_1865_materials_1,wav [Thumbnail:4_67_6] Tab=Disease prevention,idh_1865_medical_1,wav [Thumbnail:4_67_7] Tab=Vacuum pump,idh_1865_tools_1,wav [Thumbnail:4_68_2] Tab=Typewriter,idh_1867_communications_1,wav,bmp,"Sholes's daughter, Mrs. Charles Fortier, demonstrating the typewriter, 1939" [Thumbnail:4_68_3] Tab=Internal combustion,idh_1867_energy_1,wav,bmp,"Otto's 1861 version" Tab=Alternating current,idh_1867_energy_2,wav Tab=Zinc-carbon battery,idh_1867_energy_3,wav [Thumbnail:4_68_4] Tab=Margarine,idh_1867_food_1,wav [Thumbnail:4_68_5] Tab=Open hearth steel,idh_1867_materials_1,wav,bmp,"casting crew on an open hearth platform, Carnegie Steel Co." [Thumbnail:4_68_6] Tab=Contraception,idh_1867_medical_1,wav [Thumbnail:4_68_7] Tab=Stapler,idh_1867_tools_1,wav [Thumbnail:4_68_8] Tab=Railroads,idh_1867_transportation_1,wav [Thumbnail:4_69_1] Tab=Brooklyn Bridge,idh_1869_architecture_1,wav,bmp,"under construction, c. 1877" [Thumbnail:4_69_2] Tab=Color photography,idh_1869_communications_1,wav [Thumbnail:4_69_3] Tab=Liquid gasoline,idh_1869_energy_1,wav [Thumbnail:4_69_4] Tab=Can opener,idh_1869_food_1,wav [Thumbnail:4_69_6] Tab=First-aid,idh_1869_medical_1,wav [Thumbnail:4_69_7] Tab=Band saw,idh_1869_tools_1,wav [Thumbnail:4_69_8] Tab=Bicycle,idh_1869_transportation_1,wav [Thumbnail:4_70_2] Tab=Electric typewriter,idh_1871_communications_1,wav [Thumbnail:4_70_3] Tab=Fuel pipeline,idh_1871_energy_1,wav [Thumbnail:4_70_4] Tab=Food preservation,idh_1871_food_1,wav [Thumbnail:4_70_7] Tab=Vacuum cleaner,idh_1871_tools_1,wav [Thumbnail:4_71_2] Tab=Quadruplex telegraph,idh_1873_communications_1,wav Tab=Binary code,idh_1873_communications_2,wav Tab=Multiple telegraph,idh_1873_communications_3,wav,bmp [Thumbnail:4_71_4] Tab=Barbed wire,idh_1873_food_1,wav,bmp,"woodcut from trade catalog, 1880's" [Thumbnail:4_71_5] Tab=Selenium,idh_1873_materials_1,wav [Thumbnail:4_71_6] Tab=Fluoride,idh_1873_medical_1,wav [Thumbnail:4_71_7] Tab=Mercury pump,idh_1873_tools_1,wav [Thumbnail:4_72_1] Tab=Industrial laboratories,idh_1875_architecture_1,wav,bmp,"Menlo Park, 1880. Edison sits left of center, wearing a cap." [Thumbnail:4_72_2] Tab=Early television,idh_1875_communications_1,wav Tab=Telephone,idh_1875_communications_2,wav,bmp,"Bell speaking into the telephone" [Thumbnail:4_72_4] Tab=Milk chocolate,idh_1875_food_1,wav [Thumbnail:4_72_5] Tab=Blasting gelatin,idh_1875_materials_1,wav [Thumbnail:4_72_6] Tab=Microbiology,idh_1875_medical_1,wav [Thumbnail:4_72_7] Tab=Refrigerator,idh_1875_tools_1,wav [Thumbnail:4_73_2] Tab=Phonograph,idh_1877_communications_1,wav,bmp,"Edison with the tinfoil phonograph, 1878. Photograph by Matthew Brady." Tab=Halftone printing,idh_1877_communications_2,wav [Thumbnail:4_73_4] Tab=Refrigeration,idh_1877_food_1,wav [Thumbnail:4_73_5] Tab=Bar soap,idh_1877_materials_1,wav [Thumbnail:4_73_6] Tab=Antibiotics,idh_1877_medical_1,wav [Thumbnail:4_73_8] Tab=Helicopter,idh_1877_transportation_1,wav Tab=Flight,idh_1877_transportation_2,wav [Thumbnail:5_1_1] Tab=Photography,idh_1879_communications_1,wav,bmp,"Eastman's patent drawings" [Thumbnail:5_1_4] Tab=Artificial sweetener,idh_1879_food_1,wav [Thumbnail:5_1_5] Tab=Electric furnace,idh_1879_materials_1,wav [Thumbnail:5_1_6] Tab=Vaccines,idh_1879_medical_1,wav [Thumbnail:5_1_8] Tab=Electric railway,idh_1879_transportation_1,wav [Thumbnail:5_2_2] Tab=Electricity,idh_1880_electronics_1,wav [Thumbnail:5_2_3] Tab=Lighting,idh_1880_energy_1,wav [Thumbnail:5_2_6] Tab=Vaccines,idh_1880_medical_1,wav [Thumbnail:5_2_8] Tab=Flight,idh_1880_transportation_1,wav,bmp,"Lilienthal with his glider" [Thumbnail:5_3_1] Tab=Photography,idh_1881_communications_1,wav,bmp,"Marey's film of falling cat" [Thumbnail:5_3_3] Tab=Battery,idh_1881_energy_1,wav [Thumbnail:5_3_5] Tab=Coke,idh_1881_materials_1,wav [Thumbnail:5_3_6] Tab=Vaccines,idh_1881_medical_1,wav [Thumbnail:5_3_7] Tab=Dynamometer,idh_1881_tools_1,wav [Thumbnail:5_3_8] Tab=Escape velocity,idh_1881_transportation_1,wav [Thumbnail:5_4_3] Tab=Electric lighting,idh_1882_energy_1,wav Tab=Solar energy,idh_1882_energy_2,wav [Thumbnail:5_4_6] Tab=Germs,idh_1882_medical_1,wav [Thumbnail:5_4_7] Tab=Vending machine,idh_1882_tools_1,wav [Thumbnail:5_5_1] Tab=Electromagnetism,idh_1883_communications_1,wav [Thumbnail:5_5_2] Tab=Vacuum tube,idh_1883_electronics_1,wav [Thumbnail:5_5_6] Tab=Eugenics,idh_1883_medical_1,wav [Thumbnail:5_5_8] Tab=Motorboat,idh_1883_transportation_1,wav [Thumbnail:5_6_1] Tab=Linotype,idh_1884_communications_1,wav [Thumbnail:5_6_2] Tab=Nipkow disk,idh_1884_electronics_1,wav [Thumbnail:5_6_3] Tab=Steam turbine generator,idh_1884_energy_1,wav,bmp [Thumbnail:5_6_5] Tab=Rayon,idh_1884_materials_1,wav [Thumbnail:5_6_6] Tab=Cocaine,idh_1884_medical_1,wav [Thumbnail:5_6_7] Tab=Firearms,idh_1884_tools_1,wav,bmp,"Maxim with his gun" [Thumbnail:5_6_8] Tab=Airship,idh_1884_transportation_1,wav,bmp [Thumbnail:5_7_1] Tab=Photography,idh_1885_communications_1,wav,bmp,"George Eastman captured on his own film. Dated by Eastman." [Thumbnail:5_7_2] Tab=Dictaphone,idh_1885_electronics_1,wav,bmp,"a White House reporter speaking into a dictaphone" [Thumbnail:5_7_4] Tab=Canned milk,idh_1885_food_1,wav [Thumbnail:5_7_5] Tab=Firearms,idh_1885_materials_1,wav [Thumbnail:5_7_6] Tab=Vaccine,idh_1885_medical_1,wav [Thumbnail:5_7_8] Tab=Automobile,idh_1885_transportation_1,wav,bmp,"1886 Benz Patent-Motorwagen" Tab=Bicycle,idh_1885_transportation_2,wav Tab=Motorbike,idh_1885_transportation_3,wav,bmp,"1885 Daimler Reitwagen" [Thumbnail:5_8_1] Tab=Telephones,idh_1886_communications_1,wav [Thumbnail:5_8_4] Tab=Flush toilet,idh_1886_food_1,wav,bmp [Thumbnail:5_8_5] Tab=Aluminum,idh_1886_materials_1,wav [Thumbnail:5_8_6] Tab=Sterilization,idh_1886_medical_1,wav [Thumbnail:5_9_1] Tab=Telephones,idh_1887_communications_1,wav [Thumbnail:5_9_3] Tab=Steam turbine,idh_1887_energy_1,wav [Thumbnail:5_9_4] Tab=Fire escape,idh_1887_food_1,wav,bmp [Thumbnail:5_9_5] Tab=Photography,idh_1887_materials_1,wav [Thumbnail:5_9_6] Tab=Eyeglasses,idh_1887_medical_1,wav [Thumbnail:5_9_8] Tab=Automobile,idh_1887_transportation_1,wav,bmp,"1887 Daimler Motorkutsche" [Thumbnail:5_10_1] Tab=Motion pictures,idh_1888_communications_1,wav [Thumbnail:5_10_2] Tab=Phonograph,idh_1888_electronics_1,wav Tab=Radio waves,idh_1888_electronics_2,wav [Thumbnail:5_10_3] Tab=Motors,idh_1888_energy_1,wav,bmp [Thumbnail:5_10_7] Tab=Adding machine,idh_1888_tools_1,wav [Thumbnail:5_10_8] Tab=Rubber tires,idh_1888_transportation_1,wav,bmp,"bicycle with air-filled tires" [Thumbnail:5_11_1] Tab=Motion picture,idh_1889_communications_1,wav Tab=Photography,idh_1889_communications_2,wav [Thumbnail:5_11_2] Tab=Jukebox,idh_1889_electronics_1,wav [Thumbnail:5_11_4] Tab=Eiffel tower,idh_1889_food_1,wav,bmp,"under construction" Tab=Steel,idh_1889_food_2,wav,bmp,"Machine Hall, Paris Exposition" Tab=Ventilation,idh_1889_food_3,wav Tab=Toilet,idh_1889_food_4,wav,bmp [Thumbnail:5_11_5] Tab=Gunpowder,idh_1889_materials_1,wav [Thumbnail:5_11_6] Tab=Dentistry,idh_1889_medical_1,wav [Thumbnail:5_11_8] Tab=Automobile,idh_1889_transportation_1,wav,bmp,"1889 Daimler Stahlradwagen" [Thumbnail:5_12_2] Tab=Punch cards,idh_1890_electronics_1,wav,bmp [Thumbnail:5_12_3] Tab=Hydroelectricity,idh_1890_energy_1,wav [Thumbnail:5_12_4] Tab=Electric ovens,idh_1890_food_1,wav [Thumbnail:5_12_6] Tab=Vaccine,idh_1890_medical_1,wav,bmp,"""Preventing the Malady the New Way."" 1896 photograph." Tab=Sterilization,idh_1890_medical_2,wav [Thumbnail:5_12_7] Tab=Machine lubrication,idh_1890_tools_1,wav [Thumbnail:5_13_1] Tab=Motion pictures,idh_1891_communications_1,wav [Thumbnail:5_13_3] Tab=Tesla coil,idh_1891_energy_1,wav,bmp,"artificial lightning in Tesla's laboratory" [Thumbnail:5_13_6] Tab=Malaria treatment,idh_1891_medical_1,wav [Thumbnail:5_13_7] Tab=Swiss army knife,idh_1891_tools_1,wav [Thumbnail:5_14_1] Tab=Telephone,idh_1892_communications_1,wav,bmp [Thumbnail:5_14_2] Tab=Calculating machines,idh_1892_electronics_1,wav,bmp [Thumbnail:5_14_6] Tab=Viruses,idh_1892_medical_1,wav [Thumbnail:5_14_7] Tab=Thermos bottle,idh_1892_tools_1,wav [Thumbnail:5_14_8] Tab=Wind tunnels,idh_1892_transportation_1,wav [Thumbnail:5_15_2] Tab=Sound recorder,idh_1893_electronics_1,wav,bmp [Thumbnail:5_15_3] Tab=Internal combustion,idh_1893_energy_1,wav,bmp Tab=Motors,idh_1893_energy_2,wav [Thumbnail:5_15_5] Tab=Glass,idh_1893_materials_1,wav [Thumbnail:5_15_6] Tab=Aspirin,idh_1893_medical_1,wav,bmp,"Bayer advertising heroin" [Thumbnail:5_15_7] Tab=Oscilloscope,idh_1893_tools_1,wav [Thumbnail:5_16_2] Tab=Radio,idh_1894_electronics_1,wav,bmp,"Marconi with the first receiver, 1896" [Thumbnail:5_16_3] Tab=Incandescent lights,idh_1894_energy_1,wav [Thumbnail:5_16_7] Tab=Time clock,idh_1894_tools_1,wav [Thumbnail:5_16_8] Tab=Electric automobile,idh_1894_transportation_1,wav,bmp [Thumbnail:5_17_1] Tab=Motion pictures,idh_1895_communications_1,wav,bmp,"the cinematographe in operation" [Thumbnail:5_17_3] Tab=Electric generators,idh_1895_energy_1,wav,bmp [Thumbnail:5_17_6] Tab=X rays,idh_1895_medical_1,wav,bmp,"Examining the thorax. 1895 photograph." [Thumbnail:5_17_8] Tab=Electric locomotive,idh_1895_transportation_1,wav [Thumbnail:5_18_1] Tab=Photography,idh_1896_communications_1,wav [Thumbnail:5_18_2] Tab=IBM,idh_1896_electronics_1,wav [Thumbnail:5_18_6] Tab=X ray,idh_1896_medical_1,wav Tab=Gauze mask,idh_1896_medical_2,wav [Thumbnail:5_19_2] Tab=Cathode ray tube,idh_1897_electronics_1,wav [Thumbnail:5_19_3] Tab=Electrons,idh_1897_energy_1,wav [Thumbnail:5_19_4] Tab=Coffee grinder,idh_1897_food_1,wav Tab=Breakfast cereal,idh_1897_food_2,wav Tab=Gelatin dessert,idh_1897_food_3,wav [Thumbnail:5_19_5] Tab=Plastics,idh_1897_materials_1,wav [Thumbnail:5_19_6] Tab=X rays,idh_1897_medical_1,wav [Thumbnail:5_19_8] Tab=Airship,idh_1897_transportation_1,wav [Thumbnail:5_20_1] Tab=Wireless control,idh_1898_communications_1,wav [Thumbnail:5_20_4] Tab=Agriculture,idh_1898_food_1,wav,bmp [Thumbnail:5_20_5] Tab=High-speed steel,idh_1898_materials_1,wav [Thumbnail:5_21_1] Tab=Radio,idh_1899_communications_1,wav [Thumbnail:5_21_2] Tab=Photoemissive effect,idh_1899_electronics_1,wav [Thumbnail:5_21_8] Tab=Automobile,idh_1899_transportation_1,wav [Thumbnail:5_22_1] Tab=Motion pictures,idh_1900_communications_1,wav [Thumbnail:5_22_2] Tab=Photoelectric cell,idh_1900_electronics_1,wav [Thumbnail:5_22_3] Tab=Oil wells,idh_1900_energy_1,wav [Thumbnail:5_22_4] Tab=Clementines,idh_1900_food_1,wav [Thumbnail:5_22_5] Tab=Metal,idh_1900_materials_1,wav [Thumbnail:5_22_7] Tab=Radar,idh_1900_tools_1,wav [Thumbnail:5_22_8] Tab=Airships,idh_1900_transportation_1,wav,bmp [Thumbnail:5_23_1] Tab=Radio,idh_1901_communications_1,wav,bmp,"Marconi at the receiving set, St. John's, Newfoundland" Tab=Heterodyne principle,idh_1901_communications_2,wav Tab=Telex,idh_1901_communications_3,wav [Thumbnail:5_23_2] Tab=Punch cards,idh_1901_electronics_1,wav [Thumbnail:5_23_4] Tab=Artificial insemination,idh_1901_food_1,wav [Thumbnail:5_23_6] Tab=Vitamin D,idh_1901_medical_1,wav [Thumbnail:5_23_7] Tab=Welding,idh_1901_tools_1,wav [Thumbnail:5_23_8] Tab=Glider,idh_1901_transportation_1,wav [Thumbnail:5_24_1] Tab=Fax machine,idh_1902_communications_1,wav [Thumbnail:5_24_2] Tab=Color television,idh_1902_electronics_1,wav [Thumbnail:5_24_3] Tab=Spark plug,idh_1902_energy_1,wav Tab=Internal combustion,idh_1902_energy_2,wav [Thumbnail:5_24_5] Tab=Rayon,idh_1902_materials_1,wav [Thumbnail:5_24_6] Tab=Hearing aid,idh_1902_medical_1,wav [Thumbnail:5_24_7] Tab=Lawn mower,idh_1902_tools_1,wav,bmp Tab=Vacuum cleaner,idh_1902_tools_2,wav [Thumbnail:5_24_8] Tab=Brakes,idh_1902_transportation_1,wav Tab=Automobile,idh_1902_transportation_2,wav,bmp,"the first Franklin sold. Restored 1947." [Thumbnail:5_25_1] Tab=Telephone switching,idh_1903_communications_1,wav [Thumbnail:5_25_4] Tab=Skyscraper,idh_1903_food_1,wav,bmp,"under construction, c. 1890" Tab=Decaffeinated coffee,idh_1903_food_2,wav [Thumbnail:5_25_6] Tab=X ray,idh_1903_medical_1,wav Tab=Galvanometer,idh_1903_medical_2,wav,bmp [Thumbnail:5_25_7] Tab=Safety razor,idh_1903_tools_1,wav,bmp [Thumbnail:5_25_8] Tab=First flight,idh_1903_transportation_1,wav,bmp [Thumbnail:5_26_1] Tab=Offset printing,idh_1904_communications_1,wav [Thumbnail:5_26_2] Tab=Vacuum tube,idh_1904_electronics_1,wav,bmp [Thumbnail:5_26_3] Tab=Tungsten filament,idh_1904_energy_1,wav [Thumbnail:5_26_4] Tab=Breakfast cereals,idh_1904_food_1,wav [Thumbnail:5_26_5] Tab=Stainless steel,idh_1904_materials_1,wav [Thumbnail:5_26_6] Tab=Anesthetics,idh_1904_medical_1,wav [Thumbnail:5_26_7] Tab=Radar,idh_1904_tools_1,wav [Thumbnail:5_26_8] Tab=Taxi,idh_1904_transportation_1,wav,bmp [Thumbnail:5_27_1] Tab=Radio antenna,idh_1905_communications_1,wav [Thumbnail:5_27_2] Tab=Quantum theory,idh_1905_electronics_1,wav [Thumbnail:5_27_5] Tab=Safety glass,idh_1905_materials_1,wav [Thumbnail:5_27_6] Tab=Blood transfusion,idh_1905_medical_1,wav [Thumbnail:5_27_8] Tab=Outboard motor,idh_1905_transportation_1,wav [Thumbnail:5_28_1] Tab=Radio,idh_1906_communications_1,wav Tab=Telegraph,idh_1906_communications_2,wav,bmp,"Korn with his machine" Tab=Photostat,idh_1906_communications_3,wav [Thumbnail:5_28_3] Tab=Tungsten filament,idh_1906_energy_1,wav,bmp [Thumbnail:5_28_4] Tab=Freeze-drying,idh_1906_food_1,wav [Thumbnail:5_28_5] Tab=Chromatography,idh_1906_materials_1,wav [Thumbnail:5_28_6] Tab=Medical tests,idh_1906_medical_1,wav [Thumbnail:5_29_2] Tab=Vacuum tube,idh_1907_electronics_1,wav,bmp,"DeForest, an audion tube in his right hand, an oscillating audion in his left" [Thumbnail:5_30_1] Tab=Color photography,idh_1908_communications_1,wav,bmp,"Lippmann in his laboratory" [Thumbnail:5_30_2] Tab=Ampere,idh_1908_electronics_1,wav [Thumbnail:5_30_3] Tab=Battery,idh_1908_energy_1,wav,bmp,"Edison with a battery-powered miner's lamp" [Thumbnail:5_30_4] Tab=Coffee filters,idh_1908_food_1,wav [Thumbnail:5_30_5] Tab=Cellophane,idh_1908_materials_1,wav [Thumbnail:5_30_6] Tab=Tuberculin test,idh_1908_medical_1,wav [Thumbnail:5_30_7] Tab=Oil drilling,idh_1908_tools_1,wav [Thumbnail:5_30_8] Tab=Model T,idh_1908_transportation_1,wav,bmp [Thumbnail:5_31_5] Tab=Plastic,idh_1909_materials_1,wav [Thumbnail:5_32_1] Tab=Radio,idh_1910_communications_1,wav [Thumbnail:5_32_5] Tab=Rayon stockings,idh_1910_materials_1,wav [Thumbnail:5_32_6] Tab=Chemotherapy,idh_1910_medical_1,wav Tab=Iodine,idh_1910_medical_2,wav [Thumbnail:5_32_7] Tab=Washing machines,idh_1910_tools_1,wav [Thumbnail:5_32_8] Tab=Aircraft carrier,idh_1910_transportation_1,wav [Thumbnail:5_33_1] Tab=Bell Telephone Lab,idh_1911_communications_1,wav,bmp,"Bell Labs, West Street exterior. 1939 photograph." [Thumbnail:5_33_2] Tab=Television,idh_1911_electronics_1,wav [Thumbnail:5_33_5] Tab=Superconductivity,idh_1911_materials_1,wav [Thumbnail:5_33_6] Tab=Gastroscope,idh_1911_medical_1,wav [Thumbnail:5_34_1] Tab=Color photography,idh_1912_communications_1,wav [Thumbnail:5_34_2] Tab=Amplifier,idh_1912_electronics_1,wav,bmp [Thumbnail:5_34_6] Tab=Vitamins,idh_1912_medical_1,wav [Thumbnail:5_34_8] Tab=Diesel locomotive,idh_1912_transportation_1,wav [Thumbnail:5_35_1] Tab=Portable fax machine,idh_1913_communications_1,wav,bmp,"Edouard Belin" [Thumbnail:5_35_3] Tab=Engines,idh_1913_energy_1,wav [Thumbnail:5_35_4] Tab=Vacuums,idh_1913_food_1,wav [Thumbnail:5_35_5] Tab=Gasoline,idh_1913_materials_1,wav [Thumbnail:5_35_6] Tab=Mammography,idh_1913_medical_1,wav,bmp Tab=Artificial kidney,idh_1913_medical_2,wav Tab=Vaccine,idh_1913_medical_3,wav [Thumbnail:5_35_7] Tab=Geiger counter,idh_1913_tools_1,wav [Thumbnail:5_35_8] Tab=Airplane,idh_1913_transportation_1,wav,bmp [Thumbnail:5_36_1] Tab=Radio receiver,idh_1914_communications_1,wav Tab=Telephone,idh_1914_communications_2,wav Tab=Portable fax,idh_1914_communications_3,wav Tab=Teletypewriter,idh_1914_communications_4,wav [Thumbnail:5_36_5] Tab=Stainless steel,idh_1914_materials_1,wav Tab=Zipper,idh_1914_materials_2,wav [Thumbnail:5_36_6] Tab=Modern sewage plant,idh_1914_medical_1,wav [Thumbnail:5_36_7] Tab=Staplers,idh_1914_tools_1,wav [Thumbnail:5_36_8] Tab=Autopilot,idh_1914_transportation_1,wav [Thumbnail:5_37_1] Tab=Transatlantic telephone,idh_1915_communications_1,wav [Thumbnail:5_37_2] Tab=Oscillator,idh_1915_electronics_1,wav Tab=Germanium crystal,idh_1915_electronics_2,wav [Thumbnail:5_37_5] Tab=Pyrex,idh_1915_materials_1,wav,bmp [Thumbnail:5_37_8] Tab=Metal airplane,idh_1915_transportation_1,wav Tab=Armed airplane,idh_1915_transportation_2,wav,bmp,"German Fokker triplane" [Thumbnail:5_38_5] Tab=Artificial detergents,idh_1916_materials_1,wav [Thumbnail:5_38_7] Tab=Washing machine,idh_1916_tools_1,wav,bmp [Thumbnail:5_38_8] Tab=Windshield wipers,idh_1916_transportation_1,wav [Thumbnail:5_39_4] Tab=Food preservation,idh_1917_food_1,wav,bmp [Thumbnail:5_39_5] Tab=Plastic,idh_1917_materials_1,wav [Thumbnail:5_39_6] Tab=Lead poisoning,idh_1917_medical_1,wav [Thumbnail:5_40_1] Tab=Radio receiver,idh_1918_communications_1,wav [Thumbnail:5_40_2] Tab=Binary number system,idh_1918_electronics_1,wav [Thumbnail:5_40_4] Tab=Curtain wall construction,idh_1918_food_1,wav [Thumbnail:5_40_8] Tab=Hydrofoil boat,idh_1918_transportation_1,wav,bmp [Thumbnail:5_41_1] Tab=Shortwave radio,idh_1919_communications_1,wav Tab=Television,idh_1919_communications_2,wav [Thumbnail:5_41_2] Tab=Encoding machine,idh_1919_electronics_1,wav [Thumbnail:5_42_1] Tab=Radio broadcast,idh_1920_communications_1,wav,bmp,"first broadcast staff of KDKA" Tab=Motion pictures,idh_1920_communications_2,wav,bmp,"DeForest with film sound equipment, late 1920's" [Thumbnail:5_42_6] Tab=Band-Aid,idh_1920_medical_1,wav [Thumbnail:5_42_7] Tab=Firearms,idh_1920_tools_1,wav,bmp,"Thompson with the tommy gun, 1922" [Thumbnail:5_43_1] Tab=Shortwave radio,idh_1921_communications_1,wav,bmp [Thumbnail:5_43_2] Tab=Magnetron,idh_1921_electronics_1,wav [Thumbnail:5_43_3] Tab=Gasoline engines,idh_1921_energy_1,wav [Thumbnail:5_43_6] Tab=Microsurgery,idh_1921_medical_1,wav Tab=Polygraph,idh_1921_medical_2,wav [Thumbnail:5_45_1] Tab=Iconoscope,idh_1923_communications_1,wav Tab=Motion picture,idh_1923_communications_2,wav [Thumbnail:5_45_5] Tab=Steel,idh_1923_materials_1,wav [Thumbnail:5_45_6] Tab=Vaccines,idh_1923_medical_1,wav [Thumbnail:5_45_8] Tab=Autogiro,idh_1923_transportation_1,wav,bmp [Thumbnail:5_46_1] Tab=Radio,idh_1924_communications_1,wav,bmp Tab=Photography,idh_1924_communications_2,wav [Thumbnail:5_46_2] Tab=Portable radio,idh_1924_electronics_1,wav,bmp [Thumbnail:5_46_5] Tab=Plastics,idh_1924_materials_1,wav [Thumbnail:5_46_8] Tab=Airplanes,idh_1924_transportation_1,wav [Thumbnail:5_47_4] Tab=Can opener,idh_1925_food_1,wav [Thumbnail:5_48_1] Tab=Television,idh_1926_communications_1,wav Tab=Motion pictures,idh_1926_communications_2,wav,bmp,"Al Jolson in ""The Jazz Singer""" Tab=Nipkow disk,idh_1926_communications_3,wav,bmp,"Baird transmitting his own image" [Thumbnail:5_48_5] Tab=Cutting tools,idh_1926_materials_1,wav [Thumbnail:5_48_8] Tab=Flight,idh_1926_transportation_1,wav,bmp,"Goddard at the launching site" [Thumbnail:5_49_1] Tab=Picturephone,idh_1927_communications_1,wav,bmp [Thumbnail:5_49_2] Tab=Computer,idh_1927_electronics_1,wav,bmp [Thumbnail:5_49_5] Tab=Cellophane tape,idh_1927_materials_1,wav [Thumbnail:5_49_6] Tab=Iron lung,idh_1927_medical_1,wav,bmp [Thumbnail:5_49_7] Tab=Waterproof watch,idh_1927_tools_1,wav,bmp [Thumbnail:5_49_8] Tab=Transatlantic flight,idh_1927_transportation_1,wav,bmp [Thumbnail:5_50_1] Tab=Television,idh_1928_communications_1,wav,bmp Tab=Television,idh_1928_communications_2,wav,bmp,"the first at-home TV" [Thumbnail:5_50_5] Tab=Polarizer,idh_1928_materials_1,wav [Thumbnail:5_50_6] Tab=Pap test,idh_1928_medical_1,wav [Thumbnail:5_50_7] Tab=Quartz crystal clock,idh_1928_tools_1,wav [Thumbnail:5_50_8] Tab=Navigation,idh_1928_transportation_1,wav [Thumbnail:5_51_1] Tab=NBC TV,idh_1929_communications_1,wav,bmp,"NBC goes on the air" Tab=Color Television,idh_1929_communications_2,wav,bmp,"side-view of the sending apparatus" Tab=BBC TV,idh_1929_communications_3,wav [Thumbnail:5_51_6] Tab=Electroencephalogram,idh_1929_medical_1,wav [Thumbnail:5_51_7] Tab=Synchronized gear box,idh_1929_tools_1,wav [Thumbnail:5_52_3] Tab=Jet engine,idh_1930_energy_1,wav,bmp,"Whittle with the jet engine" [Thumbnail:5_52_4] Tab=Sliced bread,idh_1930_food_1,wav,bmp [Thumbnail:5_53_1] Tab=CBS TV,idh_1931_communications_1,wav [Thumbnail:5_53_2] Tab=Electric guitar,idh_1931_electronics_1,wav [Thumbnail:5_53_4] Tab=Empire State Building,idh_1931_food_1,wav,bmp,"under construction" [Thumbnail:5_53_6] Tab=Vaccines,idh_1931_medical_1,wav [Thumbnail:5_53_7] Tab=Radar,idh_1931_tools_1,wav [Thumbnail:5_54_1] Tab=Television receiver,idh_1932_communications_1,wav [Thumbnail:5_54_3] Tab=Microwaves,idh_1932_energy_1,wav [Thumbnail:5_54_5] Tab=Shape memory effect,idh_1932_materials_1,wav [Thumbnail:5_54_6] Tab=Sulfa drug,idh_1932_medical_1,wav [Thumbnail:5_54_8] Tab=Balloon flight,idh_1932_transportation_1,wav,bmp [Thumbnail:5_55_1] Tab=FM radio,idh_1933_communications_1,wav,bmp,"Armstrong with a portable radio" [Thumbnail:5_55_4] Tab=Grand Coulee Dam,idh_1933_food_1,wav,bmp [Thumbnail:5_55_5] Tab=Plastic,idh_1933_materials_1,wav [Thumbnail:5_55_7] Tab=Electron microscope,idh_1933_tools_1,wav [Thumbnail:5_56_4] Tab=Freeze-dried coffee,idh_1934_food_1,wav [Thumbnail:5_57_2] Tab=Electric guitar,idh_1935_electronics_1,wav [Thumbnail:5_57_5] Tab=Nylon,idh_1935_materials_1,wav [Thumbnail:5_57_7] Tab=Radar,idh_1935_tools_1,wav [Thumbnail:5_57_8] Tab=Passenger plane,idh_1935_transportation_1,wav,bmp [Thumbnail:5_58_1] Tab=Scheduled TV broadcast,idh_1936_communications_1,wav [Thumbnail:5_58_6] Tab=Artificial heart,idh_1936_medical_1,wav,bmp,"a living organ is placed in the heart pump" [Thumbnail:5_58_7] Tab=Hale telescope,idh_1936_tools_1,wav [Thumbnail:5_58_8] Tab=Helicopter,idh_1936_transportation_1,wav [Thumbnail:5_59_1] Tab=Xerography,idh_1937_communications_1,wav,bmp,"Carlson (center) demonstrates xerography" [Thumbnail:5_59_2] Tab=Electronic computer,idh_1937_electronics_1,wav Tab=Binary circuit,idh_1937_electronics_2,wav,bmp Tab=Turing machine,idh_1937_electronics_3,wav [Thumbnail:5_59_3] Tab=Jet engine,idh_1937_energy_1,wav [Thumbnail:5_59_4] Tab=Blendor,idh_1937_food_1,wav [Thumbnail:5_59_6] Tab=Antihistamine,idh_1937_medical_1,wav [Thumbnail:5_59_7] Tab=Radio-telescope,idh_1937_tools_1,wav Tab=Radar,idh_1937_tools_2,wav [Thumbnail:5_59_8] Tab=Golden Gate Bridge,idh_1937_transportation_1,wav,bmp,"under construction" [Thumbnail:5_60_1] Tab=Ballpoint pen,idh_1938_communications_1,wav [Thumbnail:5_60_2] Tab=Computer,idh_1938_electronics_1,wav Tab=Artificial intelligence,idh_1938_electronics_2,wav [Thumbnail:5_60_3] Tab=Fluorescent lamps,idh_1938_energy_1,wav,bmp [Thumbnail:5_60_6] Tab=Hip replacement,idh_1938_medical_1,wav [Thumbnail:5_60_7] Tab=Scanning electron microscope,idh_1938_tools_1,wav [Thumbnail:5_60_8] Tab=Liquid-fueled rocket,idh_1938_transportation_1,wav [Thumbnail:5_61_1] Tab=TV camera tubes,idh_1939_communications_1,wav,bmp,"orthicon tube with microphone" [Thumbnail:5_61_2] Tab=Magnetron,idh_1939_electronics_1,wav [Thumbnail:5_61_4] Tab=Frozen foods,idh_1939_food_1,wav,bmp [Thumbnail:5_61_5] Tab=DDT,idh_1939_materials_1,wav,bmp [Thumbnail:5_61_6] Tab=Antibiotics,idh_1939_medical_1,wav [Thumbnail:5_61_8] Tab=Helicopter,idh_1939_transportation_1,wav Tab=Jet airplane,idh_1939_transportation_2,wav [Thumbnail:5_62_1] Tab=Color TV broadcast,idh_1940_communications_1,wav [Thumbnail:5_62_2] Tab=Encoding machine,idh_1940_electronics_1,wav [Thumbnail:5_62_5] Tab=Dacron,idh_1940_materials_1,wav [Thumbnail:5_62_6] Tab=Penicillin,idh_1940_medical_1,wav [Thumbnail:5_62_8] Tab=Bridge design,idh_1940_transportation_1,wav [Thumbnail:5_63_1] Tab=Television,idh_1941_communications_1,wav Tab=FM radio,idh_1941_communications_2,wav [Thumbnail:5_63_2] Tab=Computer,idh_1941_electronics_1,wav [Thumbnail:5_63_7] Tab=Aerosol,idh_1941_tools_1,wav,bmp,"a mother sprays her son's bedroom with DDT" [Thumbnail:5_63_8] Tab=Jet airplane,idh_1941_transportation_1,wav,bmp [Thumbnail:5_64_2] Tab=Semiconductors,idh_1942_electronics_1,wav,bmp,"a point-contact transistor, 1947" [Thumbnail:5_64_3] Tab=Nuclear reactor,idh_1942_energy_1,wav [Thumbnail:5_64_6] Tab=Penicillin,idh_1942_medical_1,wav [Thumbnail:5_64_7] Tab=Audio oscillator,idh_1942_tools_1,wav,bmp [Thumbnail:5_64_8] Tab=V-2 rocket,idh_1942_transportation_1,wav,bmp [Thumbnail:5_65_2] Tab=Calculator,idh_1943_electronics_1,wav,bmp Tab=Computer,idh_1943_electronics_2,wav [Thumbnail:5_65_5] Tab=Steel,idh_1943_materials_1,wav [Thumbnail:5_65_8] Tab=Scuba gear,idh_1943_transportation_1,wav,bmp,"Cousteau demonstrates Scuba on board the S.S. Liberte" [Thumbnail:5_66_3] Tab=Gaseous diffusion method,idh_1944_energy_1,wav [Thumbnail:5_66_6] Tab=Antibiotic,idh_1944_medical_1,wav [Thumbnail:5_66_7] Tab=Quartz-crystal clock,idh_1944_tools_1,wav [Thumbnail:5_66_8] Tab=Helicopter,idh_1944_transportation_1,wav [Thumbnail:5_67_1] Tab=Geosynchronous satellite,idh_1945_communications_1,wav [Thumbnail:5_67_2] Tab=EDVAC computer,idh_1945_electronics_1,wav,bmp,"von Neuman with EDVAC" Tab=Computer ""bug"" ,idh_1945_electronics_2,wav [Thumbnail:5_67_3] Tab=Atomic bomb,idh_1945_energy_1,wav [Thumbnail:5_67_4] Tab=Herbicide,idh_1945_food_1,wav [Thumbnail:5_67_6] Tab=Fluoridation,idh_1945_medical_1,wav,bmp,"protesting fluoridation" [Thumbnail:5_68_1] Tab=Mobile telephones,idh_1946_communications_1,wav [Thumbnail:5_68_2] Tab=ENIAC computer,idh_1946_electronics_1,wav,bmp [Thumbnail:5_68_3] Tab=Nuclear reactor,idh_1946_energy_1,wav [Thumbnail:6_1_1] Tab=Photography,idh_1947_communications_1,wav,bmp,"Land with a negative and a positive" [Thumbnail:6_1_2] Tab=Transistor effect,idh_1947_electronics_1,wav [Thumbnail:6_1_3] Tab=Nuclear reactor,idh_1947_energy_1,wav [Thumbnail:6_1_8] Tab=Supersonic Flight,idh_1947_transportation_1,wav,bmp [Thumbnail:6_2_1] Tab=Audio recorder,idh_1948_communications_1,wav,bmp Tab=LP records,idh_1948_communications_2,wav Tab=Cable television,idh_1948_communications_3,wav [Thumbnail:6_2_4] Tab=Fresh Kills Landfill,idh_1948_food_1,wav,bmp [Thumbnail:6_2_5] Tab=Sneakers,idh_1948_materials_1,wav,bmp Tab=Velcro,idh_1948_materials_2,wav [Thumbnail:6_2_6] Tab=Cortisone,idh_1948_medical_3,wav [Thumbnail:6_2_7] Tab=Hale telescope,idh_1948_tools_1,wav,bmp [Thumbnail:6_3_1] Tab=Computer programming,idh_1949_communications_1,wav [Thumbnail:6_3_2] Tab=BINAC computer,idh_1949_electronics_1,wav,bmp,"Eckert demonstrates the machine" Tab=EDSAC computer,idh_1949_electronics_2,wav,bmp Tab=ILLIAC I computer,idh_1949_electronics_3,wav,bmp [Thumbnail:6_3_3] Tab=Atomic bomb,idh_1949_energy_1,wav,bmp [Thumbnail:6_3_6] Tab=X rays,idh_1949_medical_1,wav [Thumbnail:6_3_8] Tab=Jet airliner,idh_1949_transportation_1,wav,bmp [Thumbnail:6_4_1] Tab=Turing Test,idh_1950_communications_1,wav [Thumbnail:6_4_2] Tab=Computers,idh_1950_electronics_1,wav,bmp,"Mauchley with ENIAC" [Thumbnail:6_4_4] Tab=Embryo transplant,idh_1950_food_1,wav [Thumbnail:6_4_6] Tab=Treatments,idh_1950_medical_1,wav [Thumbnail:6_5_1] Tab=Computer programming,idh_1951_communications_1,wav,bmp,"Hopper at work on a manual tape punch" [Thumbnail:6_5_2] Tab=UNIVAC I computer,idh_1951_electronics_1,wav,bmp [Thumbnail:6_5_5] Tab=Superglue,idh_1951_materials_1,wav [Thumbnail:6_5_6] Tab=Heart-lung machine,idh_1951_medical_1,wav,bmp [Thumbnail:6_5_8] Tab=Automobiles,idh_1951_transportation_1,wav [Thumbnail:6_6_1] Tab=Motion pictures,idh_1952_communications_1,wav,bmp [Thumbnail:6_6_2] Tab=UNIVAC computer,idh_1952_electronics_1,wav Tab=Transistors,idh_1952_electronics_2,wav [Thumbnail:6_6_3] Tab=Nuclear reactor,idh_1952_energy_1,wav [Thumbnail:6_6_4] Tab=Artificial ice cream,idh_1952_food_1,wav [Thumbnail:6_6_6] Tab=Amniocentesis,idh_1952_medical_1,wav,bmp,"18-week fetus" Tab=Apgar score,idh_1952_medical_2,wav,bmp Tab=Polio vaccine,idh_1952_medical_3,wav,bmp,"Salk testing the vacccine in Pittsburgh, 1954" [Thumbnail:6_6_7] Tab=Tooling machine,idh_1952_tools_1,wav,bmp [Thumbnail:6_7_1] Tab=Color television,idh_1953_communications_1,wav,bmp,"CBS demonstration, Waldorf-Astoria Hotel, New York City" [Thumbnail:6_7_2] Tab=Computers,idh_1953_electronics_1,wav,bmp Tab=Ferrite-core memory,idh_1953_electronics_2,wav,bmp [Thumbnail:6_7_4] Tab=Microwave oven,idh_1953_food_1,wav [Thumbnail:6_7_6] Tab=Kidney transplant,idh_1953_medical_1,wav [Thumbnail:6_7_8] Tab= Tires,idh_1953_transportation_1,wav,bmp,"diagram of radial textile casing and fabric" [Thumbnail:6_8_1] Tab=Computer programming,idh_1954_communications_1,wav [Thumbnail:6_8_2] Tab=Silicon transistor,idh_1954_electronics_1,wav,bmp [Thumbnail:6_8_3] Tab=Photovoltaic cell,idh_1954_energy_1,wav [Thumbnail:6_8_4] Tab=TV dinners,idh_1954_food_1,wav [Thumbnail:6_9_1] Tab=Optical fiber,idh_1955_communications_1,wav [Thumbnail:6_9_2] Tab=Transistors,idh_1955_electronics_1,wav,bmp [Thumbnail:6_9_3] Tab=Nuclear power,idh_1955_energy_1,wav [Thumbnail:6_9_4] Tab= Farming,idh_1955_food_1,wav [Thumbnail:6_9_5] Tab=Artificial diamonds,idh_1955_materials_1,wav [Thumbnail:6_9_6] Tab=Antibiotics,idh_1955_medical_1,wav [Thumbnail:6_9_7] Tab=Ion microscope,idh_1955_tools_1,wav [Thumbnail:6_9_8] Tab=Hovercraft,idh_1955_transportation_1,wav,bmp [Thumbnail:6_10_1] Tab=Transatlantic telephone cable,idh_1956_communications_1,wav [Thumbnail:6_10_2] Tab=Data storage,idh_1956_electronics_1,wav,bmp [Thumbnail:6_10_5] Tab=White Out,idh_1956_materials_1,wav [Thumbnail:6_10_6] Tab=Contraception,idh_1956_medical_1,wav,bmp [Thumbnail:6_10_7] Tab=Electric battery watch,idh_1956_tools_1,wav [Thumbnail:6_10_8] Tab=Airplanes,idh_1956_transportation_1,wav [Thumbnail:6_11_1] Tab=Portable typewriter,idh_1957_communications_1,wav [Thumbnail:6_11_3] Tab=Nuclear waste,idh_1957_energy_1,wav,bmp Tab=Nuclear reactor,idh_1957_energy_2,wav,bmp Tab=Nuclear power plant,idh_1957_energy_3,wav,bmp,"235-ton reactor vessel shell, Shippingport" [Thumbnail:6_11_4] Tab=Herbicides,idh_1957_food_1,wav [Thumbnail:6_11_5] Tab=Metals,idh_1957_materials_1,wav [Thumbnail:6_11_6] Tab=Vaccines,idh_1957_medical_1,wav,bmp,"Dr. Sabin" [Thumbnail:6_11_7] Tab=Lasers,idh_1957_tools_1,wav [Thumbnail:6_11_8] Tab=Sputnik,idh_1957_transportation_1,wav [Thumbnail:6_12_1] Tab=Stereo records,idh_1958_communications_1,wav [Thumbnail:6_12_2] Tab=Integrated circuits,idh_1958_electronics_1,wav,bmp [Thumbnail:6_12_4] Tab=Architecture,idh_1958_food_1,wav [Thumbnail:6_12_5] Tab=Aluminum cans,idh_1958_materials_1,wav [Thumbnail:6_12_6] Tab=Ultrasound,idh_1958_medical_1,wav,bmp Tab=Pacemaker,idh_1958_medical_2,wav,bmp [Thumbnail:6_12_8] Tab=Satellites,idh_1958_transportation_1,wav [Thumbnail:6_13_1] Tab=Xerox,idh_1959_communications_1,wav,bmp [Thumbnail:6_13_2] Tab=Transistors,idh_1959_electronics_1,wav [Thumbnail:6_13_6] Tab=Pacemaker,idh_1959_medical_1,wav [Thumbnail:6_13_7] Tab=Transistors,idh_1959_tools_1,wav [Thumbnail:6_13_8] Tab=Space probe,idh_1959_transportation_1,wav [Thumbnail:6_14_1] Tab=Satellite,idh_1960_communications_1,wav,bmp [Thumbnail:6_14_2] Tab=Computers,idh_1960_electronics_1,wav,bmp [Thumbnail:6_14_3] Tab=Boiling-water reactor,idh_1960_energy_1,wav [Thumbnail:6_14_5] Tab=Plastic,idh_1960_materials_1,wav [Thumbnail:6_14_6] Tab=CAT scan,idh_1960_medical_1,wav [Thumbnail:6_14_7] Tab=Laser,idh_1960_tools_1,wav,bmp,"Maimen's patent drawings" [Thumbnail:6_14_8] Tab=Bathyscaphe,idh_1960_transportation_1,wav [Thumbnail:6_15_1] Tab=Radio broadcast,idh_1961_communications_1,wav [Thumbnail:6_15_2] Tab=Typewriter,idh_1961_electronics_1,wav,bmp [Thumbnail:6_15_4] Tab=Nondairy creamer,idh_1961_food_1,wav [Thumbnail:6_15_6] Tab=Birth control,idh_1961_medical_1,wav [Thumbnail:6_15_8] Tab=Spaceflight,idh_1961_transportation_1,wav Tab=Orbital flight,idh_1961_transportation_2,wav,bmp [Thumbnail:6_16_1] Tab=Satellite,idh_1962_communications_1,wav [Thumbnail:6_16_2] Tab=Audiocassette,idh_1962_electronics_1,wav [Thumbnail:6_16_4] Tab=Pesticides,idh_1962_food_1,wav [Thumbnail:6_16_5] Tab=Nitinol,idh_1962_materials_1,wav [Thumbnail:6_16_6] Tab=Laser surgery,idh_1962_medical_1,wav,bmp [Thumbnail:6_16_8] Tab=Orbital flight,idh_1962_transportation_1,wav,bmp,"Friendship 7 on the launch pad, Cape Canaveral, Florida" Tab=Space probe,idh_1962_transportation_2,wav [Thumbnail:6_17_1] Tab=Color photography,idh_1963_communications_1,wav [Thumbnail:6_17_2] Tab=Satellite,idh_1963_electronics_1,wav [Thumbnail:6_17_3] Tab=Generators,idh_1963_energy_1,wav [Thumbnail:6_17_4] Tab=Pull-top cans,idh_1963_food_1,wav [Thumbnail:6_17_6] Tab=Lung transplant,idh_1963_medical_1,wav Tab=Liver transplant,idh_1963_medical_2,wav Tab=Kidney transplant,idh_1963_medical_3,wav [Thumbnail:6_18_1] Tab=Computers,idh_1964_communications_1,wav Tab=Computer network,idh_1964_communications_2,wav [Thumbnail:6_18_5] Tab=Permanent press,idh_1964_materials_1,wav [Thumbnail:6_18_7] Tab=Weather satellite,idh_1964_tools_1,wav [Thumbnail:6_18_8] Tab=High-speed train,idh_1964_transportation_1,wav [Thumbnail:6_19_1] Tab=Computer programming,idh_1965_communications_1,wav [Thumbnail:6_19_2] Tab=Mini-computer,idh_1965_electronics_1,wav,bmp [Thumbnail:6_19_3] Tab=Fuel cells,idh_1965_energy_1,wav [Thumbnail:6_19_4] Tab=Artificial sweetener,idh_1965_food_1,wav [Thumbnail:6_19_5] Tab=Artificial grass,idh_1965_materials_1,wav [Thumbnail:6_19_6] Tab=Eyeglasses,idh_1965_medical_1,wav,bmp [Thumbnail:6_20_1] Tab=ASCII,idh_1966_communications_1,wav [Thumbnail:6_20_6] Tab=Rubella vaccine,idh_1966_medical_1,wav [Thumbnail:6_20_8] Tab=Fuel injection engine,idh_1966_transportation_1,wav [Thumbnail:6_21_1] Tab=Dolby sound,idh_1967_communications_1,wav [Thumbnail:6_21_3] Tab=Greenhouse effect,idh_1967_energy_1,wav [Thumbnail:6_21_4] Tab=Microwave oven,idh_1967_food_1,wav [Thumbnail:6_21_6] Tab=CAT scan,idh_1967_medical_1,wav [Thumbnail:6_21_8] Tab=Oil tanker,idh_1967_transportation_1,wav,bmp [Thumbnail:6_22_1] Tab=Computer mouse,idh_1968_communications_1,wav,bmp [Thumbnail:6_22_2] Tab=Integrated circuits,idh_1968_electronics_1,wav,bmp,"Moore (left) and Noyce" [Thumbnail:6_22_4] Tab=Radioactive sterilization,idh_1968_food_1,wav [Thumbnail:6_22_6] Tab=Heart transplant,idh_1968_medical_1,wav,bmp [Thumbnail:6_22_8] Tab=Supersonic flight,idh_1968_transportation_1,wav,bmp [Thumbnail:6_23_1] Tab=Computer data exchange,idh_1969_communications_1,wav [Thumbnail:6_23_2] Tab=Computer memory,idh_1969_electronics_1,wav [Thumbnail:6_23_6] Tab=Artificial heart,idh_1969_medical_1,wav [Thumbnail:6_23_7] Tab=Electron microscope,idh_1969_tools_1,wav [Thumbnail:6_23_8] Tab=Lunar landing,idh_1969_transportation_1,wav,bmp,"Aldrin unloading experimental materials from the lunar module" [Thumbnail:6_24_1] Tab=Satellites,idh_1970_communications_1,wav [Thumbnail:6_24_2] Tab=Computer chip,idh_1970_electronics_1,wav Tab=Floppy disk,idh_1970_electronics_2,wav Tab=Computers,idh_1970_electronics_3,wav Tab=Printer,idh_1970_electronics_4,wav [Thumbnail:6_24_7] Tab=Lasers,idh_1970_tools_1,wav,bmp,"a demonstration" [Thumbnail:6_24_8] Tab=Satellites,idh_1970_transportation_1,wav [Thumbnail:6_25_1] Tab=Computer language,idh_1971_communications_1,wav [Thumbnail:6_25_2_b] Tab=Computer chip,idh_1971_electronics_1,wav Tab=Calculator,idh_1971_electronics_2,wav,bmp Tab=Silicon chip,idh_1971_electronics_3,wav,bmp Tab=RISC processor,idh_1971_electronics_4,wav [Thumbnail:6_25_6] Tab=MRI,idh_1971_medical_1,wav Tab=Sterilization,idh_1971_medical_2,wav [Thumbnail:6_26_1] Tab=Computer programming,idh_1972_communications_1,wav [Thumbnail:6_26_2] Tab=Video game,idh_1972_electronics_1,wav [Thumbnail:6_26_6] Tab=CAT scan,idh_1972_medical_1,wav,bmp [Thumbnail:7_1_1] Tab=Satellites,idh_1973_communications_1,wav [Thumbnail:7_1_2] Tab=Computer chip,idh_1973_electronics_1,wav [Thumbnail:7_1_4] Tab=Push-through tab,idh_1973_food_1,wav [Thumbnail:7_1_8] Tab=Space probe,idh_1973_transportation_1,wav,bmp,"the surface of Mercury from Mariner 10" Tab=Space station,idh_1973_transportation_2,wav [Thumbnail:7_2_1] Tab=Electronic scanners,idh_1974_communications_1,wav [Thumbnail:7_2_2] Tab=Microcomputer,idh_1974_electronics_1,wav [Thumbnail:7_2_3] Tab=Gasohol,idh_1974_energy_1,wav [Thumbnail:7_2_5] Tab=Freons,idh_1974_materials_1,wav [Thumbnail:7_3_1] Tab=Ethernet,idh_1975_communications_1,wav,bmp [Thumbnail:7_3_2] Tab=Personal computer,idh_1975_electronics_1,wav [Thumbnail:7_3_5] Tab=Plastic,idh_1975_materials_1,wav [Thumbnail:7_3_6] Tab=Antibodies,idh_1975_medical_1,wav [Thumbnail:7_3_7] Tab=CCD,idh_1975_tools_1,wav [Thumbnail:7_3_8] Tab=Satellite,idh_1975_transportation_1,wav Tab=Joint space mission,idh_1975_transportation_2,wav,bmp,"Thomas P. Stafford and Aleksei A. Leonev shaking hands" [Thumbnail:7_4_1] Tab=Ink-jet printer,idh_1976_communications_1,wav [Thumbnail:7_4_2] Tab=VHS videotape,idh_1976_electronics_1,wav Tab=Computers,idh_1976_electronics_2,wav [Thumbnail:7_4_4] Tab=Energy efficient building,idh_1976_food_1,wav [Thumbnail:7_4_5] Tab=Aramid plastic fiber,idh_1976_materials_1,wav [Thumbnail:7_4_8] Tab=Space probes,idh_1976_transportation_1,wav,bmp,"the surface of Mars from Viking 1" [Thumbnail:7_5_1] Tab=Computer software,idh_1977_communications_1,wav,bmp,"Gates and Allen" [Thumbnail:7_5_2] Tab=Personal computer,idh_1977_electronics_1,wav [Thumbnail:7_5_3] Tab=Solar power,idh_1977_energy_1,wav [Thumbnail:7_5_6] Tab=Smallpox,idh_1977_medical_1,wav,bmp Tab=MRI,idh_1977_medical_2,wav,bmp [Thumbnail:7_5_8] Tab=Space probes,idh_1977_transportation_1,wav,bmp,"the southern hemisphere of Jupiter from Voyager 2" [Thumbnail:7_6_1] Tab=Word processing,idh_1978_communications_1,wav,bmp Tab=Personal computers,idh_1978_communications_2,wav,bmp [Thumbnail:7_6_2] Tab=Virtual address extension,idh_1978_electronics_1,wav,bmp [Thumbnail:7_6_5] Tab=Freons,idh_1978_materials_1,wav [Thumbnail:7_6_6] Tab=In vitro fertilization,idh_1978_medical_1,wav,bmp [Thumbnail:7_6_7] Tab=Diamond-studded saw,idh_1978_tools_1,wav,bmp [Thumbnail:7_6_8] Tab=Floating Bridge,idh_1978_transportation_1,wav [Thumbnail:7_7_1] Tab=Spreadsheet,idh_1979_communications_1,wav [Thumbnail:7_7_2] Tab=Field-effect transistor,idh_1979_electronics_1,wav [Thumbnail:7_7_3] Tab=Nuclear energy,idh_1979_energy_1,wav,bmp [Thumbnail:7_7_5] Tab=Amorphous silicon,idh_1979_materials_1,wav [Thumbnail:7_7_6] Tab=Genetic engineering,idh_1979_medical_1,wav [Thumbnail:7_7_8] Tab=Human-powered airplane,idh_1979_transportation_1,wav,bmp [Thumbnail:7_8_1] Tab=Database software,idh_1980_communications_1,wav [Thumbnail:7_8_2] Tab=Minitel,idh_1980_electronics_1,wav,bmp [Thumbnail:7_8_3] Tab=Oil-cleaning microbe,idh_1980_energy_1,wav,bmp [Thumbnail:7_8_6] Tab=Genetic engineering,idh_1980_medical_1,wav Tab=Lithotripter,idh_1980_medical_2,wav [Thumbnail:7_8_7] Tab=Laser,idh_1980_tools_1,wav [Thumbnail:7_9_1] Tab=Computers,idh_1981_communications_1,wav,bmp Tab=Spreadsheet,idh_1981_communications_2,wav [Thumbnail:7_9_2] Tab=Compact discs,idh_1981_electronics_1,wav [Thumbnail:7_9_3] Tab=Solar power station,idh_1981_energy_1,wav,bmp [Thumbnail:7_9_4] Tab=Artificial sweetner,idh_1981_food_1,wav [Thumbnail:7_9_5] Tab=Optical disks,idh_1981_materials_1,wav [Thumbnail:7_9_6] Tab=Cloning,idh_1981_medical_1,wav Tab=Bioengineering,idh_1981_medical_2,wav [Thumbnail:7_9_7] Tab=Scanning tunneling microscope,idh_1981_tools_1,wav [Thumbnail:7_9_8] Tab=Space shuttle,idh_1981_transportation_1,wav,bmp [Thumbnail:7_10_1] Tab=Compact disc players,idh_1982_communications_1,wav [Thumbnail:7_10_2] Tab=Computer clone,idh_1982_electronics_1,wav,bmp [Thumbnail:7_10_6] Tab=Artificial heart,idh_1982_medical_1,wav,bmp,"The Jarvik 7 heart" Tab=Genetic engineering,idh_1982_medical_2,wav [Thumbnail:7_10_7] Tab=Automated gene sequencer,idh_1982_tools_1,wav [Thumbnail:7_11_1] Tab=Cellular telephone,idh_1983_communications_1,wav [Thumbnail:7_11_2] Tab=Mouse,idh_1983_electronics_1,wav,bmp Tab=Virus,idh_1983_electronics_2,wav Tab=Hard disk drive,idh_1983_electronics_3,wav,bmp Tab=Microprocessor,idh_1983_electronics_4,wav,bmp [Thumbnail:7_11_3] Tab=Speed of light,idh_1983_energy_1,wav [Thumbnail:7_11_4] Tab=Artificial sweetner,idh_1983_food_1,wav [Thumbnail:7_11_6] Tab=Human embryo transfer,idh_1983_medical_1,wav [Thumbnail:7_11_7] Tab=Polymerase chain reaction,idh_1983_tools_1,wav [Thumbnail:7_11_8] Tab=Challenger mission,idh_1983_transportation_1,wav,bmp,"Sally Ride on board" [Thumbnail:7_12_1] Tab=CD-ROM,idh_1984_communications_1,wav [Thumbnail:7_12_2] Tab=MIDI,idh_1984_electronics_1,wav [Thumbnail:7_12_6] Tab=Gene mapping,idh_1984_medical_1,wav [Thumbnail:7_12_7] Tab=Laser,idh_1984_tools_1,wav [Thumbnail:7_13_1] Tab=Optical fiber,idh_1985_communications_1,wav [Thumbnail:7_13_2] Tab=Computer program,idh_1985_electronics_1,wav Tab=Desktop publishing,idh_1985_electronics_2,wav [Thumbnail:7_13_3] Tab=Synfuels,idh_1985_energy_1,wav [Thumbnail:7_13_5] Tab=Bucky-balls,idh_1985_materials_1,wav [Thumbnail:7_13_6] Tab=Genetic engineering,idh_1985_medical_1,wav [Thumbnail:7_13_7] Tab=Microscope,idh_1985_tools_1,wav Tab=Lasers,idh_1985_tools_2,wav,bmp,"the single-molecule electrophoretic analyzer" [Thumbnail:7_13_8] Tab=Deep-sea diving,idh_1985_transportation_1,wav,bmp,"the Titanic under lights" [Thumbnail:7_14_2] Tab=Digital audio tape,idh_1986_electronics_1,wav Tab=FM radio,idh_1986_electronics_2,wav [Thumbnail:7_14_3] Tab=Nuclear energy,idh_1986_energy_1,wav [Thumbnail:7_14_5] Tab=Superconductor,idh_1986_materials_1,wav [Thumbnail:7_14_6] Tab=Genetic engineering,idh_1986_medical_1,wav [Thumbnail:7_14_7] Tab=Computer keyboard,idh_1986_tools_1,wav,bmp [Thumbnail:7_14_8] Tab=Challenger mission,idh_1986_transportation_1,wav,bmp [Thumbnail:7_15_1] Tab=Disposable camera,idh_1987_communications_1,wav [Thumbnail:7_15_2] Tab=Personal computer,idh_1987_electronics_1,wav,bmp Tab=Computer chips,idh_1987_electronics_2,wav,bmp Tab=Supercomputer,idh_1987_electronics_3,wav [Thumbnail:7_15_4] Tab=Green architecture,idh_1987_food_1,wav [Thumbnail:7_15_5] Tab=Superconductor,idh_1987_materials_1,wav [Thumbnail:7_15_6] Tab=Prozac,idh_1987_medical_1,wav [Thumbnail:7_15_7] Tab=Submicroscopic tools,idh_1987_tools_1,wav [Thumbnail:7_15_8] Tab=Space longevity,idh_1987_transportation_1,wav [Thumbnail:7_16_1] Tab=Optical fiber cable,idh_1988_communications_1,wav [Thumbnail:7_16_2] Tab=RISC microprocessors,idh_1988_electronics_1,wav [Thumbnail:7_16_3] Tab=Magnethydrodynamic generator,idh_1988_energy_1,wav [Thumbnail:7_16_4] Tab=Chicken eggs,idh_1988_food_1,wav [Thumbnail:7_16_5] Tab=Bismuth,idh_1988_materials_1,wav [Thumbnail:7_16_7] Tab=Radars,idh_1988_tools_1,wav [Thumbnail:7_17_1] Tab= Videodisk,idh_1989_communications_1,wav [Thumbnail:7_17_2] Tab=Computer Deep Thought,idh_1989_electronics_1,wav [Thumbnail:7_17_3] Tab=Photovoltaic cell,idh_1989_energy_1,wav [Thumbnail:7_17_5] Tab=Superconductor,idh_1989_materials_1,wav [Thumbnail:7_17_6] Tab=Gene mapping,idh_1989_medical_1,wav [Thumbnail:7_18_1] Tab=Color fax machines,idh_1990_communications_1,wav [Thumbnail:7_18_2] Tab=RISC processors,idh_1990_electronics_1,wav Tab=Computer memory,idh_1990_electronics_2,wav Tab=Computer speed,idh_1990_electronics_3,wav,bmp [Thumbnail:7_18_5] Tab=Freons,idh_1990_materials_1,wav [Thumbnail:7_18_6] Tab=Genetic engineering,idh_1990_medical_1,wav [Thumbnail:7_18_7] Tab=Optical telescope,idh_1990_tools_1,wav,bmp,"the Keck Telescope's first celestial photograph" [Thumbnail:7_18_8] Tab=Chunnel,idh_1990_transportation_1,wav [Thumbnail:7_19_1] Tab=High-definition television,idh_1991_communications_1,wav,bmp,"Woo Paik with HDTV" [Thumbnail:7_19_2] Tab=Computer chip,idh_1991_electronics_1,wav [Thumbnail:7_19_3] Tab=Electromagnetic induction,idh_1991_energy_1,wav,bmp [Thumbnail:7_20_1] Tab=Cellular phone,idh_1992_communications_1,wav [Thumbnail:7_20_3] Tab=Photovoltaic modules,idh_1992_energy_1,wav,bmp [Thumbnail:7_20_4] Tab=Green architecture,idh_1992_food_1,wav [Thumbnail:7_20_6] Tab=Genetic engineering,idh_1992_medical_1,wav Tab=Animal patent,idh_1992_medical_2,wav Tab=Liver transplant,idh_1992_medical_3,wav [Thumbnail:7_20_8] Tab=Main-Danube Canal,idh_1992_transportation_1,wav,bmp,"under construction" [Thumbnail:7_21_1] Tab=Telephonic simultaneous translation,idh_1993_communications_1,wav [Thumbnail:7_21_2] Tab=Microprocessor,idh_1993_electronics_1,wav,bmp [Thumbnail:7_21_5] Tab=Methanol,idh_1993_materials_1,wav [Thumbnail:7_21_6] Tab=AIDS,idh_1993_medical_1,wav [Thumbnail:7_21_7] Tab=Radiotelescopes,idh_1993_tools_1,wav [Thumbnail:7_21_8] Tab=Deep-sea exploration,idh_1993_transportation_1,wav,bmp Tab=Underwater robot,idh_1993_transportation_2,wav,bmp [Thumbnail:7_22_1] Tab=Internet browser,idh_1994_communications_1,wav [Thumbnail:7_22_2] Tab=Supercomputer,idh_1994_electronics_1,wav [Thumbnail:7_22_3] Tab=Light bulb,idh_1994_energy_1,wav [Thumbnail:7_22_4] Tab=Milk,idh_1994_food_1,wav [Thumbnail:7_22_5] Tab=Plastic,idh_1994_materials_1,wav,bmp,"white powder plastic extracted from a mustard plant" [Thumbnail:7_22_6] Tab=Artificial liver,idh_1994_medical_1,wav [Thumbnail:7_22_7] Tab=Refrigerator,idh_1994_tools_1,wav [Thumbnail:7_22_8] Tab=Chunnel,idh_1994_transportation_1,wav,bmp Tab=777 jetliner,idh_1994_transportation_2,wav,bmp [Thumbnail:7_23_1] Tab=Digital video discs,idh_1995_communications_1,wav [Thumbnail:7_23_3] Tab=Three Gorges Dam,idh_1995_energy_1,wav,bmp [Thumbnail:7_23_5] Tab=Superconductor,idh_1995_materials_1,wav,bmp [Thumbnail:7_23_6] Tab=Organ transplant,idh_1995_medical_1,wav [Thumbnail:7_23_7] Tab=LEC,idh_1995_tools_1,wav [Thumbnail:7_23_8] Tab=""Maglev"" train,idh_1995_transportation_1,wav,bmp ??