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 What Elisha Otis invented? Hydraulic Crane Turbine Jet Engine The brake used in modern elevators Hydraulic Crane Turbine Jet Engine The brake used in modern elevators ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1900s 1880s 1800s 1890s 1900s 1880s 1800s 1890s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who was the first American female to patent her invention, a method of weaving straw with silk? Marjorie Joyner Mary Kies Amanda Jones Margaret Knight Marjorie Joyner Mary Kies Amanda Jones Margaret Knight ANSWER DOWNLOAD EXAMIANS APP
Inventions What groovy item was invented by Englishman Edward Craven Walker in 1963? Hot comb Lava lamp Leisure suit Eight-track tape deck Hot comb Lava lamp Leisure suit Eight-track tape deck ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the Seed Drill? Jethro Tull Woodie Guthrie Thomas Hines Arlo Guthrie Jethro Tull Woodie Guthrie Thomas Hines Arlo Guthrie ANSWER DOWNLOAD EXAMIANS APP
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