Inventions What James Watt invented? Steam boat Hot air balloon Diving bell Rotary steam engine Steam boat Hot air balloon Diving bell Rotary steam engine 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? Vannevar Bush Leslie R. Groves James B. Conant Robert Oppenheimer Vannevar Bush Leslie R. Groves James B. Conant Robert Oppenheimer ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin? Television Dishwasher Radio Telegraph Television Dishwasher Radio Telegraph ANSWER DOWNLOAD EXAMIANS APP
Inventions In which decade was the telegraph invented? 1870s 1890s 1810s 1840s 1870s 1890s 1810s 1840s ANSWER DOWNLOAD EXAMIANS APP
Inventions Which of the following was first patented by an Australian in 1889? Electric Drill Electric Shaver Electric Fence Electric Heater Electric Drill Electric Shaver Electric Fence Electric Heater ANSWER DOWNLOAD EXAMIANS APP
Inventions FROZEN FOOD - Who discovered the first practical method of freezing food? G. Findus C. Birdsey R. Scott F. Rozenosh G. Findus C. Birdsey R. Scott F. Rozenosh ANSWER DOWNLOAD EXAMIANS APP
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