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Inventions

Inventions
What Benjamin Franklin invented?

Barometer
Bifocal spectacles
Hygrometer
Radio

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Inventions
What Thomas Davenport invented?

Chesterfield
Screw propellor
Sleeping (railway) car
Electric streetcar

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Inventions
What type of system did Paul Nipkow, John Baird, and Charles Jenkins all invent?

Early Warning
Television
Telephone
Electricity

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Inventions
When was the first elevator built?

1785
1739
1760
1743

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Inventions
What J. B. Dunlop invented?

Pneumatic rubber tire
Rubber boot
Automobile wheel rim
Model airplanes

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Inventions
What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?

Charles Richter
Hiram Walker
Giuseppe Mercalli
Joshua Rumble

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MORE MCQ ON Inventions

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