› added 10 minutes ago

TIL that there is a near-perfectly circular, ultra-faint radio bubble (“Teleios”) detected in the Milky Way with no obvious optical or X-ray counterpart, and its symmetry is unusually high.

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via reddit.com

loAWA TIL that corned beef is named for the large grains of rock salt (also called "corns" of salt) that are used to treat the meat.
VMo08 TIL Dick Cavett did not realize he was in the movie Apollo 13 until he was at the theater watching it and saw himself.
VBBXD TIL that Princess Sophia Duleep Singh - Queen Victoria’s goddaughter was also a suffragette and therefore marked as a danger to the state.
oMo8 TIL on 3rd July 1988 the US Navy shot down a civilian passenger flight killing all 290 on board, including 66 children and 16 crew.
4kdjJ TIL about “sex offenders island”. Washington’s McNeil Island houses 214 sex offenders too dangerous to be released following prison. Annual reviews for release include a penile plethysmography, a tool designed to measure sexual arousal.