› added 6 months ago

20

TIL that for centuries, tuberculosis was thought to be hereditary, or caused by malnutrition, harsh climate, etc. It wasn’t until 1865 that French military doctor Jean-Antoine Villemin proved that TB was an infectious disease by inoculating lab rabbits with material from infected humans and cattle

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KOa1w TIL that there are kinky spiders who tie up their lovers with silken cords before and during sex to avoid getting eaten and to extend their mating time.
d1jB TIL that a piece of string going around all of Manhattan allows Jewish people to keep the Sabbath.
4AZR TIL that nurses and doctors wear green or blue scrubs to help relieve eye strain from constantly looking at red (patient’s insides), which is also opposite on the color wheel. They’re easier to wash and keep longer.
9wp0D TIL that the Goodwin Sands (A sandbank that lies off the East coast of England) is home to more than 2,000 shipwrecks.
9YBLp TIL Just like fingerprints, every person has a unique tongue print.