A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884.
invented by Gustave Trouve
A metal detector is an instrument that detects the presence of metal nearby.…
invented by Moritz Von Jacobi
An electric motor is an electrical machine that converts electrical energy into…
invented by Léon Bouly
Cinematograph or Kinematograph is an early term for several types of motion…
invented by Carl Gassner
A zinc–carbon battery is a dry cell primary battery that provides direct…
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Inventions that changed the world
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