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TIL Radiocarbon dating needs to take in account the effects of both fossil fuel burning (which increases the amount of non-radioactive carbon in the atmosphere) and nuclear tests (which increases the amount of radioactive carbon)

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DNYJ TIL Sweden has almost zero child fatalities in car crashes because most parents keep children rear facing until age 4
D7Kp TIL that in 2006, all outdoor advertisements were banned in Sao Paulo, Brazil. Within a year, 15000 billboards were taken down in South America’s largest city.
EgQVV TIL The UK Has More Speed Cameras Than US
Y70kx TIL U.S. railroads adopted the Standard Time System on the "Day of Two Noons." On Nov. 18, 1883, the Univ. of Pittsburgh's observatory telegraphed railroads at the exact moment of high noon under the 90th meridian line to reset/synchronize their clocks, dissolving the 100+ timezones previously used.
8vAG TIL Justin Timberlake was the voice behind the McDonald’s phrase “I’m Lovin’ It” and he was paid $6 million for the song.