Inventions Who invented Bakelite? Roy Plunkett Henry Ford Charles Goodyear Leo Hendrik Baekeland Roy Plunkett Henry Ford Charles Goodyear Leo Hendrik Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions What James Watt invented? Diving bell Steam boat Hot air balloon Rotary steam engine Diving bell Steam boat Hot air balloon Rotary steam engine ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1960s 1940s 1970s 1950s 1960s 1940s 1970s 1950s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Jet Engine? Gottlieb Daimler Lewis E. Waterman Sir Frank Whittle Roger Bacon Gottlieb Daimler Lewis E. Waterman Sir Frank Whittle Roger Bacon ANSWER DOWNLOAD EXAMIANS APP
Inventions This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece. Beulah Henry Bessie Blount Marjorie Joyner Mae Jamison Beulah Henry Bessie Blount Marjorie Joyner Mae Jamison ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1840s 1810s 1890s 1870s 1840s 1810s 1890s 1870s ANSWER DOWNLOAD EXAMIANS APP
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