› added 3 months ago

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TIL there's a competition in gurning where participants try to push their lower lips to cover their upper lips in a silly expression.

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5V1eR TIL archaeologists working in a 2,500 y.o. Chinese cemetery unearthed charred incense burners and burnt stones that tested high for cannabinol, which is released when THC is burned. "Unlike many wild varieties, the cannabis smoked at the site [...] was pretty potent stuff."
8m5V TIL that there was a comic series about repairing the property damage caused by superheroes and supervillains
x0m0 TIL Metals usually do not burn, as they conduct heat away from hot spots very effectively. However, metal fires are uniquely hazardous because water and other common firefighting materials make them worse.
dOVK TIL: tradition says that when entering a house or any other building, samurais had to leave their katana with a servant, but the wakizashi (a shorter katana) could be worn at all times and places. This is why the wakizashi is often called the samurai’s side arm
p8kyb TIL 90% of the Earth's gravity reaches the ISS, and the reason the crew float in the spacecraft is due to "microgravity". In a vacuum like outer space, objects of any weight, fall at the same speed. Since astronauts and the spacecraft are falling together (around Earth), they appear to be floating.