#e <t>electronics<d>1901 Dec 12<n>transatlantic radio<c>Cornwall<mov>1901 Dec 12<c>Saint John's<p>Marconi<info>@Marconi@@ made the first transatlantic radio communication on December 12, 1901, from Cornwall, England, to Saint John's, Newfoundland, where Marconi had set up receiving equipment.
#e <t>electronics<d>1904<e>1905<n>vacuum tube<c>London<info>The first diode was developed by Sir J. Ambrose Fleming in 1905, but the basic principle of a current passing in only one direction through such a device was first observed by @Thomas Edison@@ in 1883.
#e <t>design<d>1908<n>Model T introduced<p>Henry Ford<info>@Henry Ford@@ introduced the Model T in 1908. By 1912 there were 7,000 Ford dealers across the U.S. The Model T line closed in 1927, by which time 15 million had been made. The Model A was introduced in 1927.
#e <t>inv<t>phys<d>1908<n>Geiger counter<c>Germany<info>Also known as a Geiger-Muller counter, the device takes its name from the German physicists Hans Geiger and Wilhelm Muller. It is an instrument used to detect and measure the intensity of radiation, such as beta particles and cosmic rays, by making an audible tick when detecting a particle.
#e <t>electronics<d>1918<n>superheterodyne circuit<c>New York<info>developed by Edwin Armstrong.
#e <t>inv<d>1927<n>scotch tape
#e <t>electronics<d>1927 Sep 7<n>electronic image transmission<c>San Francisco<info>Philo Farnsworth conceived of the idea of electronic picture transmission in 1921, at age 15, and made the first working experimental model in 1927.
#e <t>inv<d>1929<n>van de Graaff generator<c>U.S.
#e <t>electronics<d>1933<n>FM broadcasting<c>New York<info>Frequency modulation was developed by Edwin Armstrong between 1925 and 1933.
#e <t>inv<t>phys<n>cyclotron<d>1934<info>The cyclotron was invented by Ernest O. Lawrence and M. S. Livingston. Lawrence conceived of it in 1929.
#e <t>invention<d>1938<n>xerography<c><info>Xerography (meaning "dry printing") was invented by Chester F. Carlson. The rights were later obtained by the Xerox Corporation, which took its name from the process.<ref>Grolier
#e <t>electronics<d>1939<n>pulse-code modulation<info>Pulse-code modulation converts analog information into a digital signal.
#e <t>electronics<d>1940<n>cavity magnetron<c>Great Britain<info>The cavity magnetron, used in radar, is a device for generating high-power microwave pulses, invented by Sir John T. Randal and Henry A. Boot<ref>Grolier
#e <t>inv<d>1941<n>aerosol can<c>U.S.<info>Invented by Lyle Goodhue and William Sullivan.
#e <t>inv<d>1942<n>bubble wrap
#e <t>discovery<d>1945<n>microwave cooking<c>U.S.<info>Microwave cooking was discovered by Raytheon technician Percy Spencer when a microwave signal melted a candy bar in his pocket.
#e <t>electronics<n>transistor<d>1947 Dec<c>U.S.<info>The transistor was invented at Bell Laboratories by John Bardeen, Walter Brattain and William Schockley.
#e <t>inv<d>1947<n>radiocarbon dating<c>U.S.<info>Radiocarbon dating was invented by U.S. chemist Willard Libby.
#e <t>invention<d>1948<n>velcro<c>Switzerland<info>Velcro, a woven, plastic hooks-and-loops fastener, was invented by a Swiss engineer, who was inspired during a microscopic examination of the seed-burrs left on his socks by field plants.<ref>Grolier
#e <t>inv<d>1952<n>Mylar recording tape
#e <t>test explosion<d>1952 Nov<n>thermonuclear bomb<c>U.S.<info>The U.S. detonates a thermonuclear device.
#e <t>test explosion<d>1953 Aug 12<n>Soviet hydrogen bomb<c>Russia
#e <t>electronics<d>1953<n>NTSC<c>U.S.<info>After World War II, television developed rapidly throughout the world, most of Europe choosing a 625-line system that was incompatible with the U.S. 525-line standard. The U.S. standard, however, is used in most of the Western Hemisphere and the Far East. Over the objections of much of the television industry, the FCC in 1950 approved a color television system developed by CBS that was incompatible with the millions of black-and-white sets then in use. This 441-line system never came into widespread use, and a second NTS Committee was convened to develop a compatible color system. The 525-line NTSC color system, compatible with its black-and-white system, gained FCC approval in 1953, but it was ten years before the public responded and bought color sets in any significant numbers. In Europe, two different 625-line color systems were introduced.<ref>Grolier
#e <t>inv<d>1956<n>hydrogen bomb<c>Bikini Atoll<info>The U.S. explodes a hydrogen bomb in the South Pacific.
#e <t>electronics<n>integrated cicuit<d>1959<c>U.S.<info>by Noyce & Moore
#e <t>electronics<d>1960<n>touch tone dialing<c>U.S.<info>AT&T introduces touch tone dialing.
#e <t>design<d>1963<n>compact audiocassette<c>Netherlands<info>The compact audiocassette was introduced by Philips.
#e <t>invention<d>1964<n>marker pen<c>Japan<info>The soft-tip pen is a Japanese product introduced in 1964. It has led to a proliferation of pens, or markers, that use new tip materials and a wide range of brilliantly colored inks.<ref>Grolier
#e <t>use<d>1978<n>laser videodiscs<c>Netherlands<info>The Philips Company developed LaserVision, an optical disc in which video and audio signals are encoded in the form of microscopic pits beneath the surface of a reflective disc measuring approximately 30.5 cm in diameter. Laser videodiscs first appeared on the market in 1978.
#e <t>electronics<d>1979<n>cellular phones<c>Sweden<info>Ericsson introduces its first cellular phone.