In which decade was the AEEE (now the IEEE) founded?
Answer: B
It was founded in the 1880s.
The American Institute of Electrical Engineers was founded in 1884, with Norvin Green as its first president and Thomas Edison among its early members. It merged with the Institute of Radio Engineers in 1963 to form the IEEE.
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What African-American inventor received 5 patents in the field of shoemaking?
Answer: B
It was Jan Ernst Matzeliger.
Born in Surinam and working in Lynn, Massachusetts, he patented a lasting machine in 1883 that shaped the upper of a shoe over the last and attached it to the sole. Skilled hand lasters had managed fifty pairs a day; his machine did seven hundred.
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When were blue jeans invented?
Answer: D
They were invented in the 1850s.
Levi Strauss was selling sturdy trousers to miners in California from 1853, and with the tailor Jacob Davis patented the use of copper rivets at the stress points in 1873. The rivets are what made them jeans rather than merely trousers.
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Who invented Bicycle?
Answer: D
Kirkpatrick Macmillan is credited with it.
The Scottish blacksmith is said to have added rear-driven treadles to a hobby-horse about 1839, making the first bicycle that could be ridden without the feet touching the ground. The claim rests on later testimony rather than a patent.
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In which decade was the transistor invented?
Answer: A
It was invented in the 1940s.
John Bardeen and Walter Brattain made the point-contact transistor at Bell Labs in December 1947, and William Shockley followed with the junction transistor. The three shared the 1956 Nobel Prize in Physics.
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Which physicist is chiefly responsible for the Big Bang theory?
Answer: C
George Gamow.
He developed the theory in the 1940s with Ralph Alpher, predicting the abundances of the light elements and, with Robert Herman, the cosmic microwave background. Gamow was Russian-born and became an American citizen; Georges Lemaitre, a Belgian, had proposed the original 'primeval atom'.
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This part-time racing driver invented the bucket seat in 1969. Who was he?
Answer: A
It was Steve McQueen.
The actor raced cars and motorcycles seriously, and is credited with the bucket seat, which holds the driver in place through corners.
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What did Thomas Davenport invent?
Answer: B
He invented the electric streetcar.
Thomas Davenport, a Vermont blacksmith, built the first practical direct-current electric motor in 1834 and used it to run a small electric car on a circular track - the first electric railway, though batteries made it uneconomic at the time.
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Who invented Dynamite?
Answer: D
Alfred Nobel invented dynamite.
Nitroglycerine was dangerously unstable; in 1867 he found that absorbing it in kieselguhr, a porous earth, made it safe to handle. The fortune it earned endowed the Nobel Prizes.
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In which decade was the telegraph invented?
Answer: B
It was invented in the 1840s.
Samuel Morse and Alfred Vail demonstrated the electric telegraph in 1844, sending 'What hath God wrought' from Washington to Baltimore. Cooke and Wheatstone had patented a version in England in 1837.
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