Inventions When was the first lawn mower invented? 1849 1854 1830 1835 1849 1854 1830 1835 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? G. Ferdinand Von Zeppelin Leo H Baekeland Roger Bacon Sir Frank Whittle G. Ferdinand Von Zeppelin Leo H Baekeland Roger Bacon Sir Frank Whittle 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 Joshua Rumble Giuseppe Mercalli Charles Richter Hiram Walker Joshua Rumble Giuseppe Mercalli Charles Richter ANSWER DOWNLOAD EXAMIANS APP
Inventions Which of the following was first patented by an Australian in 1889? Electric Heater Electric Fence Electric Drill Electric Shaver Electric Heater Electric Fence Electric Drill Electric Shaver ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Jet Engine? Sir Frank Whittle Gottlieb Daimler Roger Bacon Lewis E. Waterman Sir Frank Whittle Gottlieb Daimler Roger Bacon Lewis E. Waterman ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1980s 1970s 1960s 1950s 1980s 1970s 1960s 1950s ANSWER DOWNLOAD EXAMIANS APP
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