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TIL Amalgam (silver colored tooth fillings) are partially made of mercury and each year 3.6 million tons of mercury are released into the environment from cremations of people with these fillings

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aNAo TIL There’s a village in N. Kazakhastan dubbed “Sleepy Hollow” because the residents will fall asleep for days at a time. They suffer from encephalopathy and it took 4 years to discover the cause was radon gas.
E11kp TIL 84% of American vegetarians and vegans, abandon their diet, returning back to meat in under a year.
OGEPa TIL humans have a faint glow that’s visible to certain cameras. Humans emit a very low level of light due to metabolic processes, but it’s about 1,000 times weaker than what the human eye can detect.
wLWvE TIL that some of the boulevard medians in Milwaukee, Wisconsin have 8-10 ft deep bunkers with toilets in them, originally installed in the 1930s as a convenience for city workers who were out and about all day without access to a toilet
ne4p9 TIL green screens are green because it doesn’t match any natural skin tone of the actor so no part of them will be accidentally edited out.