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Question 1 of 10

In about 1730, both English mathematician John Hadley and American inventor Thomas Godfrey invented something sailors use to measure angular elevations of celestial bodies. What?

Question 2 of 10

What light bulb inventor proposed to his second wife, Mina Miller, via Morse code, which he tapped out on her hand?

Question 3 of 10

A shoehorn is a first-class one, a diving-board is a second-class one, and a stapler is a third-class one. What simple machine is this?

Question 4 of 10

New England servants used to refuse work if it meant eating too much heath hen. Now it's extinct. To what bird was it most closely related?

Question 5 of 10

What inventor had five dots tattooed onto his left forearm, and liked to sleep on the floor of a closet at his Menlo Park laboratory?

Question 6 of 10

What is the speed of light?

Question 7 of 10

The nose of the shinkansen was redesigned after the beak of a kingfisher. What is the shinkansen?

Question 8 of 10

After physics, what study did Isaac Newton take up until he published "Principia Mathematica"?

Question 9 of 10

How many major time zones does the earth have?

Question 10 of 10

What is the name of the ancient ocean that surrounded the Pangea land mass?

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Average Score: 9

22% knows the answer to this question: "What is 123 times 4? "
Nobody will score higher than a 4

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