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TIL that a 98% effectiveness rate for a condom means that out of 100 couples using, 2 will get pregnant in a year and not that they fail 2 out of 100 times being used.

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lW1a TIL the earth’s oceans may be teeming with massive, hollow, worm-like entities called pyrosome that can grow as big as a sperm whale
QNDgk TIL that a placebo can still work even when a subject knows it’s a placebo
pDrZ TIL of Wabi-Sabi, a principle of Japanese aesthetics that emphasizes beauty found in imperfection
gr61y TIL According to a 2009 study, the oldest words in the English language include “I“, “we“, “who“, “two” and “three“, all of which date back tens of thousands of years. The discovery was made by tracking the divergence of ancestral words into different languages with an IBM supercomputer.
OAv4 TIL That injured athletes will sometimes involuntarily extend their arms after a knockout or severe blow to the head. This is called the “fencing response” and is a sign of severe concussion.