Inventions Which scientist discovered the radioactive element radium? Benjamin Franklin Marie Curie Isaac Newton Albert Einstein Benjamin Franklin Marie Curie Isaac Newton Albert Einstein ANSWER DOWNLOAD EXAMIANS APP
Inventions What Benjamin Franklin invented? Radio Bifocal spectacles Hygrometer Barometer Radio Bifocal spectacles Hygrometer Barometer ANSWER DOWNLOAD EXAMIANS APP
Inventions It travels over land and water. Who invented the HOVERCRAFT? T. Henman O. Stricheg S. Sperrow C. Cockerell T. Henman O. Stricheg S. Sperrow C. Cockerell ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the phonograph? Alexander Graham Bell Thomas Edison John Kruesi Jules Levy Alexander Graham Bell Thomas Edison John Kruesi Jules Levy ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? Television Telegraph Dishwasher Radio Television Telegraph Dishwasher Radio ANSWER DOWNLOAD EXAMIANS APP
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
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