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Inventions

Inventions
In which decade was the transistor invented?

1940s
1950s
1960s
1980s

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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?

Robert Oppenheimer
James B. Conant
Vannevar Bush
Leslie R. Groves

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Inventions
When was barb wire patented?

1874
1900
1840
1895

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Inventions
In which decade was the first solid state integrated circuit demonstrated?

1960s
1950s
1970s
1980s

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Inventions
Which of the following was first patented by an Australian in 1889?

Electric Shaver
Electric Fence
Electric Heater
Electric Drill

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Inventions
Where is the village of Branston, after which the famous pickle is named?

Yorkshire
Norfolk
Lancashire
Staffordshire

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