› added 11 years ago

211

TIL The U.S. ranks 3rd in liking the United States.

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JYmnB TIL That the units devised to measure pleasure/dopamine levels measure sex at 200 units whereas methamphetamine at 1,250 units
l78r1 TIL The Assyrians had basic lens technology. One of their creations, the Nimrud lens, dates to 710 BCE, though its purpose is debated. Lenses could have been used to start fires, as decoration, or astronomy tools (with references to the snakes of saturn being the rings or mythology)
874K TIL that venom needs to be injected, as opposed to poison, which need to be ingested.
R7ek6 TIL the shape of a lawn mowers blade creates lift which forces the grass to stick up, making it much easier to be cut by the next blade
A6PB TIL: A university researcher has developed a tattoo removal cream.