› added 3 years ago

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TIL that aside vitamin D, the human skin also makes serotonin directly when exposed to sunlight

Read more ncbi.nlm.nih.gov

via reddit.com

0dye5 TIL that in 2023, a radioactive capsule containing cesium-137, was lost during transport in Western Australia, prompting a large-scale search operation. Amazingly, it was found on the side of the road several weeks later and caused no injuries or sickness.
yQOVl TIL Peoria, Illinois was a test market for new shows in the early 20th century, due to their broad demographic. This gave rise to the phrase "Will it play in Peoria?"
DDGe TIL during the 1920s, a devastating illness swept the world without known cause, attacking peoples’ brains, leaving victims speechless and motionless. The disease, known as Encephalitis Lethargica, killed nearly a million people and left millions more frozen inside their bodies. No cure was found.
D1W4e TIL about an ancient Japanese pruning method that allows lumber production without cutting down trees called "Daisugi"
xVdYw TIL that in 1895 a swarm of Rocky Mountain locust, measuring 1,800 miles long and 110 miles wide, blocked out the sun for five days. Thirty years later the locust was extinct.