› added 7 years ago

354

TIL there are 5 times more former vegetarians/vegans than current ones.

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e0dmn TIL that while aerospikes could offer the greatest rocket engine performance, no company has yet to produce a commercial engine (despite many trying) because they are so complicated.
E6lX TIL Human fingers can feel objects as small as 13 nanometers. “This means that, if your finger was the size of the Earth, you could feel the difference between houses from cars.”
kABB TIL that there hasn’t been a Democrat-nominated chief justice in almost 60 years.
epKN5 TIL that the phrase "you can't shout fire in a crowded theater" was invented by the prosecutor who got Eugene V. Debs sent to prison for protesting WW1.
G5bN TIL babies exposed to sign language babble silently with their hands even if they can hear.