› added 4 years ago

75

TIL that Lake Chad, in Africa, was at one point larger than the Caspian Sea

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a8ddb TIL cherry stones contain so much cyanide that just two are enough kill you.
woGbY TIL in the 18 months leading up to the 9/11 attacks, CIA had 2 of the hijackers under surveillance within the US but kept it secret from the FBI
X7rP TIL that all birds of prey check over their shoulders for other predators before striking - except for eagles
5YVl9 TIL it takes up to 10 years for a cigarette to fully decompose
5YabQ TIL that the British Medical Journal does an annual Christmas Issue, where they publish research-quality but satirical articles, like a randomized trial on the effectiveness of parachutes, or investigating the driving behaviors of different physician specialties