Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Charles Richter Hiram Walker Joshua Rumble Giuseppe Mercalli Charles Richter Hiram Walker Joshua Rumble Giuseppe Mercalli ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the battery? James Hargreaves Alessandro Volta John Wilkinson Thomas Edison James Hargreaves Alessandro Volta John Wilkinson Thomas Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Bifocal spectacles Radio Hygrometer Barometer Bifocal spectacles Radio Hygrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Inventions Who developed the idea of Crop Rotation? Cabbage Carlson Swede Svenson Potato Peterson Turnip Townsend Cabbage Carlson Swede Svenson Potato Peterson Turnip Townsend ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin Leo H Baekeland Sir Frank Whittle Roger Bacon G. Ferdinand Von Zeppelin ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Ethyl gasoline Sonar Jet propulsion Radar Ethyl gasoline Sonar Jet propulsion Radar ANSWER DOWNLOAD EXAMIANS APP
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