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TIL intercontinental ballistic missiles use celestial navigation to check and correct their course (initially set using internal gyroscopes) while flying outside the Earth's atmosphere.

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kOk5d TIL In 1883, gifts were distributed after a show in Victoria Hall. Many of the estimated 1100 children surged downstairs, but the door opened inward and had been bolted so only one could pass at a time. Those in front were crushed by those behind them. 183 children between the ages of 3 and 14 died.
M7Q7W TIL Singapore was the first country to introduce an electronic toll collection scheme to manage traffic congestion by the way of road pricing in 1975. It has since been introduced in other cities in the world such as in London and Stockholm and has been proposed for New York City and San Francisco.
Bgg8b TIL about Sokushinbutsu, a practice of self-mummification observed by Japanese Buddhist monks. The monks would follow a strict starvation diet until abstaining from eating altogether in order to lose as much body fat and moisture as possible. They would finally be locked in a tomb while still alive.
oBRVL Kenny Broad, a National Geographic emerging explorer and environmental anthropologist, explains how he sometimes smells the characteristic rotten-egg stench of hydrogen sulfide gas when scuba diving in blue holes—even while wearing a mask and regulator.
8jNV TIL that car companies like Jaguar, Cadillac, and Dodge discontinued hood ornaments in part because they would kill pedestrians in otherwise minor traffic incidents