Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1900s 1880s 1890s 1800s 1900s 1880s 1890s 1800s ANSWER DOWNLOAD EXAMIANS APP
Inventions What Enrico Fermi invented? Betatron Nuclear reactor Cyclotron X ray machine Betatron Nuclear reactor Cyclotron X ray machine ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the Raggedy Ann doll patented? 1919 1911 1920 1915 1919 1911 1920 1915 ANSWER DOWNLOAD EXAMIANS APP
Inventions What drink was invented by Charles Leiper Grigg in 1929? 7-Up Yoo-Hoo Pepsi Hawaiian Punch 7-Up Yoo-Hoo Pepsi Hawaiian Punch ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the first solid state integrated circuit demonstrated? 1960s 1950s 1970s 1980s 1960s 1950s 1970s 1980s ANSWER DOWNLOAD EXAMIANS APP
Inventions This part-time race car driver invented the bucket seat in 1969. Who was he?? Paul Newman Harrison Frazier Steve McQueen John Wayne Paul Newman Harrison Frazier Steve McQueen John Wayne ANSWER DOWNLOAD EXAMIANS APP
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