Labels:text | screenshot | website | web page | person | online advertising OCR: WAREHOUSE POP-UP When you open a warehouse pop-up, a video clip of David Macaulay introduces the machine. Maurach HOT-AIR LINKS Click on any of the links BALLOON to find out more about the machine, the MACHINE principles that make it Machines Hot-Air Balloon work, its history, and the PRINCIPLE minapiks Floating story of its inventor. History HISTORY 1783 INVENTOR Joseph and Jaques Montgolfier Back HELP CONTENTS
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