20th Century
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Inventions of the 20th century
Gas turbine
invented by Ægidius Elling
A fourth component is often used to increase efficiency (on turboprops and…
Laminated glass
invented by Édouard Bénédictus
Laminated glass (LG) is a type of safety glass that holds together when…
Fleming valve
invented by John Ambrose Fleming
The Fleming valve, also called the Fleming oscillation valve, was a thermionic…
vacuum tube
invented by John Ambrose Fleming
A vacuum tube, electron tube, valve (British usage), or tube (North America),…
Diode
invented by John Ambrose Fleming
A diode is a two-terminal electronic component that conducts current primarily…
Bakelite
invented by Leo Baekeland
Polyoxybenzylmethylenglycolanhydride, better known as Bakelite…
Cellophone
invented by Jacques E. Brandenberger.
Cellophane is a thin, transparent sheet made of regenerated cellulose. Its low…
Haber process
invented by Fritz Haber
The Haber process, also called the Haber–Bosch process, is an artificial…
Cloud chamber
invented by Charles Thomson Rees Wilson
A cloud chamber, also known as a Wilson cloud chamber, is a particle detector…
Bergius process
invented by Friedrich Bergius
The Bergius process is a method of production of liquid hydrocarbons for use as…
Kaplan turbine
invented by Viktor Kaplan
The Kaplan turbine is a propeller-type water turbine which has adjustable…
Tanks
invented by Walter Wilson William Tritton
A tank is an armored fighting vehicle intended as a primary offensive weapon in…
Silicon
invented by Jan Czochralski
Silicon is a chemical element with the symbol Si and atomic number 14. It is a…
Crystal oscillator
invented by Alexander M. Nicholson
A crystal oscillator is an electronic oscillator circuit that uses the…
Fischer–Tropsch process
invented by Franz Fischer Hans Tropsch
The Fischer–Tropsch process is a collection of chemical reactions that…
Liquid fueled rocket
invented by Robert H. Goddard
A liquid-propellant rocket or liquid rocket utilizes a rocket engine that uses…
Yagi-Uda Antenna
invented by Shintaro Uda
A Yagi–Uda antenna or simply Yagi antenna, is a directional antenna…
Quartz clock
invented by J.W. Horton Warren Marrison
Quartz clocks and quartz watches are timepieces that use an electronic…
The ball screw
invented by
A ball screw is a mechanical linear actuator that translates rotational motion…
Phase-contrast microscopy
invented by Frits Zernike
Phase-contrast microscopy (PCM) is an optical microscopy technique that…
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Inventions that changed the world