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The term "astronaut" comes from the greek words that mean "star" and "sailor".
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In 1850 Dmitri Mendeleev walk almost a thousand miles to moscow so he could apply for the University of Moscow. Although he was not accepted, he walked in to St.petersburg where he was accepted, And with that education he developed the Periodic table of Elements.
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Astronauts can indeed cry in space. Tears do not need gravity to form, Once they get big enough they simply break free of the eye and float around.
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According to Article VIII of the Outer Space Treaty of 1967, you can be arrested for a crime committed anywhere in the known universe.
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This is the first Periodic table of elements by Dmitri Mendeleev
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Stephen Hawking once tried to find potential time travelers by throwing a party and only sending out invitations after the partyS.
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Hearing someone calls your name when one has actually called your name is a sign of a healthy mind.
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Human saliva contains a painkiler called Opiorphin that is about six times more powerful than Morphine.