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Inventions

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

1980s
1970s
1950s
1960s

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Inventions
Who invented Bicycle?

Evangelista Torricelli
Karl Benz
Leo H Baekeland
Kirkpatrick Macmillan

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Inventions
When was barb wire patented?

1874
1840
1895
1900

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Inventions
This African-American woman physical therapist worked with soldiers disabled in World War II. She invented a device that helped the disabled to eat by delivering food through a tube to a mouthpiece.

Bessie Blount
Beulah Henry
Marjorie Joyner
Mae Jamison

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Inventions
What piece of clothing was invented by French fashion designer Louis Reard in 1946?

Zoot suit
Bikini
Mini-skirt
Tank top

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Inventions
Who invented Bakelite?

Charles Goodyear
Leo Hendrik Baekeland
Henry Ford
Roy Plunkett

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