Inventions What Enrico Fermi invented? Betatron X ray machine Cyclotron Nuclear reactor Betatron X ray machine Cyclotron Nuclear reactor ANSWER DOWNLOAD EXAMIANS APP
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 When was the first lawn mower invented? 1830 1835 1849 1854 1830 1835 1849 1854 ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Pneumatic rubber tire Automobile wheel rim Model airplanes Rubber boot Pneumatic rubber tire Automobile wheel rim Model airplanes Rubber boot ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the toothbrush invented? 1765 1770 1790 1742 1765 1770 1790 1742 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the first controllable flying AEROPLANE (AIRPLANE)? West Brothers Lidenbergh Brothers South Brothers Wright Brothers West Brothers Lidenbergh Brothers South Brothers Wright Brothers ANSWER DOWNLOAD EXAMIANS APP
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