Inventions What Elisha Otis invented? Hydraulic Crane Turbine The brake used in modern elevators Jet Engine Hydraulic Crane Turbine The brake used in modern elevators Jet Engine ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1800s 1880s 1900s 1890s 1800s 1880s 1900s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions What Sir Isaac Newton invented? Spectacles Microscope Reflecting telescope Chronometer Spectacles Microscope Reflecting telescope Chronometer ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Automobiles using gasoline? Leo H Baekeland Evangelista Torricelli Karl Benz Kirkpatrick Macmillan Leo H Baekeland Evangelista Torricelli Karl Benz Kirkpatrick Macmillan ANSWER DOWNLOAD EXAMIANS APP
Inventions What charge card, developed in 1950, was the first to be accepted nationally in the US? Visa Diner's Club MasterCharge Discover Visa Diner's Club MasterCharge Discover ANSWER DOWNLOAD EXAMIANS APP
Inventions What device for new parents did Ann Moore invent in 1969? Baby monitor Bottle warmer Infant carrier Disposable diaper Baby monitor Bottle warmer Infant carrier Disposable diaper ANSWER DOWNLOAD EXAMIANS APP
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