Inventions When was the toothbrush invented? 1765 1770 1790 1742 1765 1770 1790 1742 ANSWER DOWNLOAD EXAMIANS APP
Inventions What African-American inventor received 5 patents in the field of shoemaking? Ernest Just Lewis Latimer Jan Ernst Matzeliger Elijah McCoy Ernest Just Lewis Latimer Jan Ernst Matzeliger Elijah McCoy ANSWER DOWNLOAD EXAMIANS APP
Inventions What Elisha Otis invented? The brake used in modern elevators Jet Engine Hydraulic Crane Turbine The brake used in modern elevators Jet Engine Hydraulic Crane Turbine ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention by Garnet Carter made its debut at the Fairyland Inn Resort in Lookout Mountain, Tennessee, in 1927? Ski lift Miniature golf Golf cart Swimming pool slide Ski lift Miniature golf Golf cart Swimming pool slide ANSWER DOWNLOAD EXAMIANS APP
Inventions Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? 1831 1828 There is no sure date 1825 1831 1828 There is no sure date 1825 ANSWER DOWNLOAD EXAMIANS APP
Inventions What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes? Hiram Walker Charles Richter Giuseppe Mercalli Joshua Rumble Hiram Walker Charles Richter Giuseppe Mercalli Joshua Rumble ANSWER DOWNLOAD EXAMIANS APP
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