Named after 10th-century Denmark king Harald “Bluetooth” Gormsson
invented by James Martin
In aircraft, an ejection seat or ejector seat is a system designed to rescue…
invented by Xerox PARC
Gary Starkweather, who worked in Xerox’s product development department,…
invented by IBM
The IBM Simon Personal Communicator (simply known as IBM Simon) is a handheld,…
invented by United States of America
A thermonuclear weapon, fusion weapon or hydrogen bomb (H bomb) is a…
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Inventions that changed the world
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