› added 4 years ago

254

TIL about The Massacre of Black Wall Street.

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B4BK TIL the reason rubbing alcohol burns when you put it on cuts is because exposed nerve cells in the cut that normally detect hot temperatures have their pain threshold lowered by alcohol - which causes our body temperature to cause a burning sensation.
Egg57 TIL dolphins can use their echo-location to examine an object, and then later have the ability to recognize it in person or on a video monitor.
a8ARo TIL that Eddie Murphy, Danny DeVito, Chevy Chase, Bill Cosby. John Cleese, John Candy, Steve Martin, Jeff Goldblum and John Lithgow were all considered for the part of Doc Brown in Back To The Future.
Y7LBd TIL adult cats meow only as a way to communicate with humans and not other cats.
Ypajv TIL when performing a push-up, you support about 69% of your bodyweight in the up position, and about 75% in the down position.