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TIL: The first known “battery” dates back 2000 years, could produce up to 2 volts, and its use was unknown

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n9MW TIL The faces on Mount Rushmore will outlast Neil Armstrong’s footprint on the moon. Armstrong’s lunar print is there to stay for about 1 million years. The faces on Mount Rushmore will still be here on Earth for 6 million years after the footprint is gone.
R54ow TIL that spiny dogfishes' spines control their swimming rather than their brains, allowing them to sleep while swimming.
XEQk TIL Sylvester Stallone , at 15, was voted as “most likely to end up in the electric chair” by classmates.
oBDGL TIL the New England vampire panic was the reaction to an outbreak of tuberculosis in the 19th century throughout New England. Tuberculosis was thought to be caused by the deceased consuming the life of their surviving relatives.
Y77LA TIL the term used by scientists to describe "falling" into a black hole: spaghettification.