› added 5 years ago

154

TIL that astronauts swallow their toothpaste after brushing, as spitting is not possible because of its weightlessness.

Read more youtu.be

via reddit.com

A684 TIL that a “Desire Path” is the worn track that multiple people mark on grass or other surfaces because it’s the most easily navigated route between places. In Finland, desire paths made by footprints in snow in winter are used to design purpose-built pathways.
Wjg9 TIL Pork butt is actually from a pig’s shoulder and the ‘butt’ has nothing to do with the animal
nWjdP TIL the Guinness Book of World Records originated from an argument over the fastest game bird in Europe.
l75L1 TIL there was a group that created a sperm bank exclusively containing the semen of Nobel Prize winners, hoping to selectively give birth to the next generation of geniuses.
BZrW TIL that transparent aluminum, which has existed since 1981, can stop a .50 caliber bullet.