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Steam engine
Invented by Jeronimo Beaumont, but the first practical steam powered engine was a water pump developed by Thomas Slavery in 1698. It used vacuum to raise water from below and then used steam power to raise it higher. -
Period: to
Conveyor belt
first used -
Period: to
Victorian era
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Radio
Invented by Marconi -
Telephon
Invented by Alexander Graham Bell and Elisha Gray -
Radiosignal
The first radiosignal was in 1895 -
Period: to
Edwardian era
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Lie detector
Invented by James Mckenzie, and was used by the police for interrigation and investigations since 1924 -
Radio - Marconi
Recived the Nobel price -
Conveyor belt - Henry Ford
Started to use conveyor belts in his production -
The modern polygraph
Invented by John Larson