/u/82364's posts
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Inherent limitations of balloons aside, why not a space balloon? Is there just no use for getting something that high up but not in orbit?
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Is it possible to build a digital camera that has equal resolution in each direction? Or does a grid of pixels somehow not care whether or not details are aligned with the edges?
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Why do rainbows (appear to?) have distinct bands? Why two blue bands? Do they continue into non-visible wavelengths? If so, how is the purple band created, if not by overlapping red and blue bands?
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Some say that light colored clothes offer better uv protection than dark colored clothes, some say the opposite; what are the arguments for each?
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