› added 5 months ago

36

TIL that USP Alcatraz Island closed due to being 'too expensive' to continue operating.

Read more bop.gov

via reddit.com

9YJmm TIL that because human fast-twitch muscles contract and relax up to 70 times per second, you can clench your first tightly, hold it close to your ear, and hear it vibrating.
xVX5B TIL People Who Are Bad at Something Tend to Believe They Are Superior and This Bias Has a Name Called the Dunning-Kruger Effect
D1MGj TIL the US Navy has 6 standard alarms for specific scenarios on a submarine. Each alarm sounds different, has immediate actions and priority- collision, diving, missile emergency, missile jettison, general, and power plant casualty. A mnemonic for the order is, "Can Dead Missile Men Get Pro-Pay?"
M7BbA TIL Tattooing Was Illegal In NYC From 1961 - 1997
VBYxD TIL France has detonated nearly 200 nuclear bombs in the South Pacific, the last of which was in 1996