Inventions What Elisha Otis invented? Hydraulic Crane Jet Engine The brake used in modern elevators Turbine Hydraulic Crane Jet Engine The brake used in modern elevators Turbine ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Cabbage Carlson Potato Peterson Turnip Townsend Swede Svenson Cabbage Carlson Potato Peterson Turnip Townsend Swede Svenson ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Roger Bacon Leo H Baekeland Sir Frank Whittle G. Ferdinand Von Zeppelin Roger Bacon Leo H Baekeland Sir Frank Whittle G. Ferdinand Von Zeppelin ANSWER DOWNLOAD EXAMIANS APP
Inventions What now-ubiquitous device was invented by Zenith engineer Eugene Polley in 1955? Remote control VCR Microwave oven Calculator Remote control VCR Microwave oven Calculator ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Fountain Pen? John J. Loud Sir Frank Whittle Kirkpatrick Macmillan Lewis E. Waterman John J. Loud Sir Frank Whittle Kirkpatrick Macmillan Lewis E. Waterman ANSWER DOWNLOAD EXAMIANS APP
Inventions Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that? Hang glider Golf tee Water skis Motorboat Hang glider Golf tee Water skis Motorboat ANSWER DOWNLOAD EXAMIANS APP
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