Nicéphore Niépce invents Heliography, the first photographic process.
invented by Lucien B. Smith
Barbed wire, also known as barb wire, occasionally corrupted as bobbed wire or…
invented by Francois Coignet
Reinforced concrete (RC), also called reinforced cement concrete (RCC), is a…
invented by William Otis
A steam shovel is a large steam-powered excavating machine designed for lifting…
invented by William Robert Grove
A fuel cell is an electrochemical cell that converts the chemical energy of a…
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Inventions that changed the world
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