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Discovery/Invention- Discoverer/Inventor

Discovery/Invention- Discoverer/Inventor

Printing Press Johannes Gutenberg (German)

 Barometer Evangelista Torricelli (Italian)

 Steam Engine Thomas Newcomen (British)

 Bifocal Lens Benjamin Franklin

 Electric Battery Alessandro Volta (Italian)

 Electric Motor Michael Faraday (British)

 Telegraph Samuel Morse (American)

 Machine Gun Richard Jordan Gatling (American)

 Dynamite Alfred Bernhard Nobel (Swedish)

 Telephone Alexander Graham Bell (Scottish)

 X-Ray Wilhelm Conrad Röntgen (German)

 Radio Guglielmo Marconi (Italian)

 Air Brake George Westinghouse (American)


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