Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1880s 1800s 1890s 1900s 1880s 1800s 1890s 1900s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who came up with the idea for INSTANT MASHED POTATO? K. Edwards W. Raleigh S. Tuberosum E. Asselbergs K. Edwards W. Raleigh S. Tuberosum E. Asselbergs ANSWER DOWNLOAD EXAMIANS APP
Inventions What treat was invented by 11-year-old Frank Epperson in 1905? Popsicle Banana split Cracker Jacks Cotton candy Popsicle Banana split Cracker Jacks Cotton candy ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gunpowder? Sir Frank Whittle Leo H Baekeland G. Ferdinand Von Zeppelin Roger Bacon Sir Frank Whittle Leo H Baekeland G. Ferdinand Von Zeppelin Roger Bacon ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Electric Generator? Alfred B. Nobel Thomas Alva Edison Sir Alexander Graham Bell Michael Faraday Alfred B. Nobel Thomas Alva Edison Sir Alexander Graham Bell Michael Faraday ANSWER DOWNLOAD EXAMIANS APP
Inventions When were bar code scanners invented? 1960s 1940s 1950s 1970s 1960s 1940s 1950s 1970s ANSWER DOWNLOAD EXAMIANS APP
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