A liquid-propellant rocket or liquid rocket utilizes a rocket engine that uses liquid propellants.
invented by Alexander M. Nicholson
A crystal oscillator is an electronic oscillator circuit that uses the…
invented by CERN
A touchscreen or touch screen is the assembly of both an input (‘touch…
invented by Theodor Kober
A Zeppelin is a type of rigid airship named after the German inventor Count…
invented by Shintaro Uda
A Yagi–Uda antenna or simply Yagi antenna, is a directional antenna…
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Inventions that changed the world
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