› added 5 months ago

25

TIL that some seven tons of steel were recovered from the ruins of the World Trade Center to make the bow of the USS New York (LPD-21).

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5YKd8 TIL Nokia was founded in 1865.
NXgN6 TIL that one third of sea level rise is from thermal expansion (not melting ice)
dD7NB TIL about the biogenic carbon cycle. A natural cycle of carbon and methane being converted between plants, ruminants, soil, and the atmosphere.
nWB4d TIL birds truly are government spies... US military funds research on crows' facial recognition abilities for "enemy tracking"
v16BK TIL that where a girl ties her bow on her dirndl during Oktoberfest means something. To the right means they're in a relationship, to the left means they're single, in the back means they're a waitress or a widow and in the front means they're a virgin.