/u/SnailHunter's posts
According to an outside observer, does a beam of light shined directly at a black hole ever cross the event horizon?
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If you have access to complete knowledge of the state of a system, but only at one instant of time, is it possible to determine the velocities of the particles in that system at that instant?
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When people talk about the "temperature of the universe" being ~2.7 K, does this mean that if you were to evenly distribute all particles throughout the universe now, the average temp everywhere would be 2.7 K?
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Are virtual particles really just popping into and out of existence all around us? Do they really need no energy to arise?
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What does it mean when people say a particle is an excitation of a field? And does that field physically "exist" in any way apart from its associated particles?
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Followup to a previous question: Are there any instances when we put in physically meaningful numbers into the maths of a theory and get out something deemed "impossible"?
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How soon after eating carbs can the body use them for energy? And how big is the window that they can be used for?
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If someone were sitting dead-center in the Earth-Moon system's L2, would they be able to see any of the Earth? Or would it all be blocked out from their field of view by the moon?
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