/u/[deleted]'s posts in /r/askscience
Why do stars in the night sky appear to be approximately the same size as planets, when their angular width is often five orders of magnitude less?
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How does an individual hear voices/noises in there head that aren't actually there? (auditory hallucinations)
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Are the boundaries between different parts of the electromagnetic spectrum man-made or are there differences between them?
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When part of a limb gets amputated and veins and arteries are blocked off, how is blood flow still maintained?
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