MindYourDecisions] presents a Babylonian tablet dating back to around 1800 BC that shows that the hypotenuse of a unit square is the square root of two or 1.41421. How did they know that? We ...
Space on MSN21 小时
How do astronauts weigh themselves in space?In microgravity, astronauts must measure their mass, not their weight, which they can do with two devices on the ISS.
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