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139

TIL that qr codes have a very large margin of error

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9YBVG TIL that four times more people speak English as a second language (roughly two billion) than as a native one (approximately 350 million).
DG6D TIL when a prisoner is sentenced to be caned in Singapore, they aren’t told in advance when the sentence will be carried out, they need medical officials to certify they’re physically fit, and they are stripped naked and caned by trained officers who swing the 1.27cm thick cane at speeds up 160kph.
6M8Q TIL that during the first moon landing, the average age in the mission control room was 28.
pJ08 TIL there are turntables that play records using a laser instead of a needle, and are so accurate that they play the dirt and dust collected in the record grooves
bE0Q TIL Aborigines were chained by the neck and force fed salt to help explorers find waterholes in arid Western Australia