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TIL There's a branch of science called necrobiotics which can turn spider corpses into robots

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X076Q TIL that Alzheimer's disease is currently ranked as the seventh leading cause of death in the United States, and that the financial burden on the world at large is estimated annually at US$1 trillion.
oRRgY TIL Momma bears are so protective of their young they’ll actively seek out human occupied areas because they know male bears, who would want to kill their cubs to increase the chances they mate with them, will avoid human contact.
PY6yV TIL that the evidence that showed the Columbia Space Shuttle was "safe" for re-entry were results using debris 600 times smaller than the one that broke off the Shuttle. This information was "hidden" in plain sight, in a single PowerPoint slide, which may have led to the fatal decision.
9mVm TIL that Emperor Nero competed in the Olympic Games. Nero did terribly and was nearly killed in a chariot race, but was nonetheless declared the winner in every event he competed in.
5V08P TIL that the ancient Greeks used butter as a medicine and thought only barbarians ate it. In the Middle Ages, it was sometimes used as lamp oil but was mainly eaten by peasants. It only became popular among the wealthy when the church allowed its consumption during Lent.