Inventions In which decade were the first successful diode and triode vacuum tubes invented? 1890s 1880s 1900s 1800s 1890s 1880s 1900s 1800s ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Automobiles using gasoline? Karl Benz Kirkpatrick Macmillan Leo H Baekeland Evangelista Torricelli Karl Benz Kirkpatrick Macmillan Leo H Baekeland Evangelista Torricelli ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the phonograph? Thomas Edison John Kruesi Jules Levy Alexander Graham Bell Thomas Edison John Kruesi Jules Levy Alexander Graham Bell ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bifocal Lens? Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin Alfred B. Nobel Thomas Alva Edison Rudolf Diesel Benjamin Franklin ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Fountain Pen? John J. Loud Sir Frank Whittle Lewis E. Waterman Kirkpatrick Macmillan John J. Loud Sir Frank Whittle Lewis E. Waterman Kirkpatrick Macmillan ANSWER DOWNLOAD EXAMIANS APP
Inventions What piece of clothing was invented by French fashion designer Louis Reard in 1946? Tank top Bikini Zoot suit Mini-skirt Tank top Bikini Zoot suit Mini-skirt ANSWER DOWNLOAD EXAMIANS APP
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