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TIL Queen's "Another One Bites the Dust" was used to train medical professionals to provide the right number of chest compressions per minute while performing CPR, due to its bassline having a tempo close to that recommended by the British Heart Foundation.

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oGgo TIL that cost for solar has decreased from $101.05 per watt in 1975 to $0.447 per watt in August of 2016. The cheapest bid for unsubsidized solar is 2.42¢/kWh—cheaper per kWh than natural gas, coal, or nuclear power can provide practically anywhere in the world.
OG48g TIL that 'Rocky' (1976) was inspired by the true story of Chuck Wepner, a local boxer from New Jersey who was set up for a dream fight with Muhammad Ali. Wepner quit his job to train full time, and against all odds, lasted 15 rounds with the champ. Stallone was in the audience.
GYYNg TIL that "shooting fish in a barrel" is considered easy because the bullet impact causes the water pressure in the barrel to change suddenly, killing every fish instantly.
rREp4 TIL A Liger (Lion/Tiger crossbreed) can get up to 800 pounds and 6 feet long. That makes it as big as any prehistoric cat fossil ever found. (Also bred for its skills in magic).
QJa5M TIL that eating a slug can kill you