› added 2 years ago

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TIL that the rectangular 9 volt battery, king of toy batteries, is actually made of 6 small cylindrical 1.5 volt batteries.

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rZyw TIL the dodo bird’s flightlessness and lack of a fear response was actually an evolutionary advantage before humans arrived, allowing them to conserve energy on an island with no predators.
xVjLD TIL that higher IQ is associated with greater use of illegal drugs and excessive alcohol intake
b9l07 TIL you are 100 times more likely to get bit by another human in New York City than you are to get bit by a shark at the beach
xVgrg TIL the Demon core, a fissile core that went supercritical twice in the 1940s causing the deaths of Harry Daghlian and Louis Slotin.
5YpW8 TIL semen is only 10% sperm (the little swimmers). The rest is made up of nutrients such as vitamin C, calcium and protein.