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TIL that most of the heat a spacecraft encounters re-entering earth’s atmosphere is caused by compression, not friction.

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p86ge TIL about work grunting, aka worm charming. A sport, past time, and subsistence strategy practiced in many cultures around the world.
v1J7R TIL Telephone Party Lines Were Once High Entertainment - neighboring family's had to share 1 phone line in 20th century up in north country area due to telephone company's saying it was too expensive for individual installation. Each family had own 'ring tone' and could listen in on each other.
a9y TIL that Henry Ford was a Nazi anti-Semitic supporter and was the first foreigner to be decorated with Nazi Germany’s Grand Cross of the German Eagle.
mxoQO TIL when you see CNN playing in airport terminals you're actually watching a special version of the channel CNN produces just for airports
koxe TIL night vision is always green because the human eye can see more shades of green greater than any other colour.