› added 9 years ago

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TIL When wolves howl together, they harmonize rather than sing on one note to give the illusion of greater numbers.

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logbr TIL that in the international standard for paper size (used everywhere except the USA and some Latin American countries), the aspect ratio is always √2:1, so that when cut in half, the halves also have the same aspect ratio. In the "A" series (including A4), A0 is 1 m², A1 is 0.5 m², and so on
b9ZeQ TIL There is a parasitic worm in grasshoppers that after growing to maturity, makes the grasshoppers seek water and drown themselves to return the parasite to water
K7j6 TIL, the pen name, Mark Twain, is steamboat slang for 12 feet of water.
kOdwg TIL NASA gets no money from companies using their name or logo to sell products.
KOkZw TIL: Uncle Sam is the personification of the US Government, Columbia is the personification of the US People.