Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Charles Richter Joshua Rumble Giuseppe Mercalli Hiram Walker Charles Richter Joshua Rumble Giuseppe Mercalli Hiram Walker ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Sir Alexander Graham Bell Michael Faraday Alfred B. Nobel Thomas Alva Edison Sir Alexander Graham Bell Michael Faraday Alfred B. Nobel Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the Raggedy Ann doll patented? 1920 1915 1911 1919 1920 1915 1911 1919 ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1840s 1870s 1810s 1890s 1840s 1870s 1810s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions What Elisha Otis invented? Turbine Jet Engine Hydraulic Crane The brake used in modern elevators Turbine Jet Engine Hydraulic Crane The brake used in modern elevators ANSWER DOWNLOAD EXAMIANS APP
Inventions Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? There is no sure date 1825 1828 1831 There is no sure date 1825 1828 1831 ANSWER DOWNLOAD EXAMIANS APP
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