/u/inkseep1's posts
A 5 foot section of railroad rail does not seem very flexible but a 200 foot section appears to be as flexible as a noodle with bends under a foot. How does longer length make it more flexible?
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When we travel to the moon and back, does the barycenter of the 2 bodies affect the calculations or is there another way to handle the earth moving along with the moon?
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How efficient will the universe ultimately be in burning hydrogen and helium into heavier elements inside of stars?
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What would we theoretically detect in a star when it first starts fusion in the core and what progressive changes would be detectable?
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Giving the expansion of space, if we see a supernova now that appears to be 13 billion light years away, how long ago did it happen, how far did the light travel, how far away is the remnant now, and how far away was it when it exploded?
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