Inventions Who invented Bakelite? Leo Hendrik Baekeland Charles Goodyear Roy Plunkett Henry Ford Leo Hendrik Baekeland Charles Goodyear Roy Plunkett Henry Ford ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Hygrometer Radio Barometer Bifocal spectacles Hygrometer Radio Barometer Bifocal spectacles ANSWER DOWNLOAD EXAMIANS APP
Inventions Benjamin Franklin was a prolific inventor. He invented the lightning rod, the Franklin stove, studied electricity, discovered the Gulf Stream, started the first library, and on and on. Among his many other inventions, what musical instrument did he invent? Harmonium Clarinet Banjo Oboe Harmonium Clarinet Banjo Oboe ANSWER DOWNLOAD EXAMIANS APP
Inventions When were blue jeans invented? 1860s 1900s 1870s 1850s 1860s 1900s 1870s 1850s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who is the English physicist responsible for the 'Big Bang Theory'? Roger Penrose Albert Einstein Michael Skube George Gamow Roger Penrose Albert Einstein Michael Skube George Gamow ANSWER DOWNLOAD EXAMIANS APP
Inventions What toy was invented by Joshua Lionel Cowen around 1900? Yo-yo Electric train Raggedy Ann doll Tinkertoys Yo-yo Electric train Raggedy Ann doll Tinkertoys ANSWER DOWNLOAD EXAMIANS APP
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