› added 10 years ago

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TIL that people without light stimulation from the sun (i.e. in a cave) tend to have a 48 hour sleep-wake cycle

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j9vE TIL when a caterpillar is eating a tobacco plant, the plant sends out a chemical distress call that attracts predators of the caterpillar
Brlbd TIL of the Strategic Defense Initiative, which was an anti-ballistic missile program, launched by Ronald Reagan in the 80's, that was intended to use lasers and satellites to shoot down nuclear missiles in space. Because of this, the program was commonly referred to as "Star Wars".
Z8jeQ TIL Philadelphia mobster John Veasey was shot in the head three times at point blank range by trusted business associates and survived. After he was shot he walked out of the room and went straight to the FBI where he became a government witness.
4X8ea TIL that the huge Lake Kivu is one of three lakes known to have limnic eruptions, natural disasters that create CO2 gas clouds that wipe out life in the area. It takes place every 1000 years or so and 2 million people now live in the vicinity.
pY7dG TIL that chickens lay eggs through the same opening in their bodies that poop comes out of