/r/askscience
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If there is a normal matter periodic table, is it plausible that there is an anti-periodic table? (e.g. anti-protons and whatnot make anti-elements)
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If a commercial airplane has both engines fail at cruising altitude, how far can it glide in an attempt to find a safe place to land?
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Which is more efficient, keeping my house at a constant temperature even when I'm gone, or repeatedly cooling and heating it?
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I once heard a rumor that archaeologists digging at Five Points NY (basis for "Gangs of New York") contracted 19th century diseases. Is this true? If so, is this the only instance of an old disease becoming new again?
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