Inventions What furniture item was invented by California furniture designer Charles Prior Hall in 1968? Sofa bed Hammock Waterbed Captain's chair Sofa bed Hammock Waterbed Captain's chair ANSWER DOWNLOAD EXAMIANS APP
Inventions When was the first lawn mower invented? 1835 1830 1854 1849 1835 1830 1854 1849 ANSWER DOWNLOAD EXAMIANS APP
Inventions The Manhattan Project was started by President Roosevelt in 1942 to ensure that the U.S. beat the Germans in developing a nuclear bomb. Whom did Roosevelt appoint as scientific head the Manhattan Project? James B. Conant Leslie R. Groves Vannevar Bush Robert Oppenheimer James B. Conant Leslie R. Groves Vannevar Bush Robert Oppenheimer ANSWER DOWNLOAD EXAMIANS APP
Inventions What toy was invented by Joshua Lionel Cowen around 1900? Yo-yo Electric train Tinkertoys Raggedy Ann doll Yo-yo Electric train Tinkertoys Raggedy Ann doll ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1890s 1900s 1800s 1880s 1890s 1900s 1800s 1880s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Gramophone? Michael Faraday Sir Alexander Graham Bell Fahrenheit Thomas Alva Edison Michael Faraday Sir Alexander Graham Bell Fahrenheit Thomas Alva Edison ANSWER DOWNLOAD EXAMIANS APP
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