Named after 10th-century Denmark king Harald “Bluetooth” Gormsson
invented by Frits Zernike
Phase-contrast microscopy (PCM) is an optical microscopy technique that…
invented by IBM
The IBM Simon Personal Communicator (simply known as IBM Simon) is a handheld,…
invented by Christopher Cockerell
A hovercraft, also known as an air-cushion vehicle or ACV, is an amphibious…
invented by Shintaro Uda
A Yagi–Uda antenna or simply Yagi antenna, is a directional antenna…
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