› added 8 months ago

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TIL a young woman's head swelled from her usual measurement of 22 inches to 24.8 inches (and the shape of her face changed) after she used hair dye. This was because the hair dye had a chemical in it called PPD (paraphenylenediamine), which can cause serious allergic reactions in certain people.

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ne8ko TIL that you shouldn’t brush your teeth after eating. Apparently you should wait 30 minutes, because otherwise you’ll just be brushing all the damaging acids into your teeth. It’s better not to brush your teeth at all than to brush your teeth right after eating.
BroGx TIL there's been proposals to terraform Venus for a human colony since the 1960's, such as thinning the dense atmosphere to reduce the 450 °C surface temperature, setting up a system of orbital mirrors to give it Earth-like day/night cycle, and colliding it with an ice moon to fill it with water.
PYylJ TIL that after screening the movie WarGames at Camp David, President Reagan was inspired to learn more about America's vulnerability to cyberattack. The response: "Mr. President, the problem is much worse than you think."
rRxM0 TIL there is a species of flying squid that is capable of "jet-propelled aerial locomotion"
kJ1NW TIL in the weeks following the Titanic sinking, over 118,000 people had joined the “just missed it club”, claiming they had missed or canceled their trip at the last moment