Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Joshua Rumble Charles Richter Hiram Walker Giuseppe Mercalli Joshua Rumble Charles Richter Hiram Walker Giuseppe Mercalli ANSWER DOWNLOAD EXAMIANS APP
Inventions What Sir Isaac Newton invented? Spectacles Chronometer Reflecting telescope Microscope Spectacles Chronometer Reflecting telescope Microscope ANSWER DOWNLOAD EXAMIANS APP
Inventions What Frank Whittle invented? Ethyl gasoline Jet propulsion Radar Sonar Ethyl gasoline Jet propulsion Radar Sonar ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the Internet first implemented? 1980s 1960s 1940s 1950s 1980s 1960s 1940s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? G. Findus R. Scott F. Rozenosh C. Birdsey G. Findus R. Scott F. Rozenosh C. Birdsey ANSWER DOWNLOAD EXAMIANS APP
Inventions What J. B. Dunlop invented? Model airplanes Pneumatic rubber tire Automobile wheel rim Rubber boot Model airplanes Pneumatic rubber tire Automobile wheel rim Rubber boot ANSWER DOWNLOAD EXAMIANS APP
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