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TIL That the bite force of an orca is nearly 5x that of a great white

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mx8NM TIL that while repairing a whale enclosure divers during the cold war heard a human-like voice saying "out, out, out," and got out of the water to see nobody. A beluga whale named Noc began to mimic human speech and attempted to communicate with them.
ADmrg TIL that the ‘sound’ produced by an ultrasound machine is made from applying an electrical current to piezoelectric crystals
W7RBY TIL In 36 BCE, Roman statesman Marcus Varro wrote about germs, describing “minute creatures which cannot be seen by the eyes, which…enter the body through the mouth and nose and there cause serious diseases.” The germ theory of disease would not be accepted widely for another 1,900 years.
oEAK TIL Bill Hader once worked as an usher at a movie theater and was fired for spoiling the end of Titanic to noisy patrons.
xj4o TIL Charles “Pretty Boy” Floyd, a Great Depression-era gangster and notorious bank robber, endeared himself to the public by destroying mortgage papers at the banks he robbed, freeing many from their debts.