Calculate the number 472
[7695] Calculate the number 472 - NUMBERMANIA: Calculate the number 472 using numbers [9, 2, 1, 8, 12, 526] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 1
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Calculate the number 472

NUMBERMANIA: Calculate the number 472 using numbers [9, 2, 1, 8, 12, 526] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 1
#brainteasers #math #numbermania
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Ballpen in space

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
The Russians used a pencil.

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Oskar Minkowski

Died 18 Jul 1931 at age 73 (born 13 Jan 1858).German physiologist and pathologist who introduced the concept that diabetes results from suppression of a pancreatic substance (later found to be the hormone insulin). After studying how fat is metabolized by the body, in 1889, Oskar Minkowski and Joseph von Mering uncovered the role of the pancreas in diabetes. In an experiment in which they removed the pancreas from a dog, it consequently developed diabetes. He was the brother of mathematician Hermann Minkowski (whose idea of a four-dimensional or "Minkowski space", laid the mathematical foundation of Albert Einstein's general theory of relativity). Oskar's son, Rudolf Minkowski was a physicist and astronomer.
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