/u/thermal7's posts
If a person can run the 400m hurdles in under 46 seconds, what are they likely capable of in the 400m sprint (without hurdles)?
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If the Big Bang started with an incredibly dense ball of matter, why didn't this ball of matter collapse into a black hole?
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I read that there are up to 300 million habitable planets in the universe. If this is true, why has there been no contact with intelligent life?
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Earth's escape velocity is listed as 11.2 km/s. Why can't an object escape by rising at a slower, consistent speed?
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If scientists learned that an average sized comet was going to hit earth in a year, what would likely happen between now and then?
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