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104

TIL - They make mouthguards for athletes that change color at higher temperatures. This is so a coach can easily spot who might be at risk for heat stroke

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nWrJo TIL that actor James Garner smoked marijuana his entire adult life. As quoted in his memoir: "I smoked marijuana for 50 years [...] After decades of research I've concluded that that marijuana should be legal and alcohol illegal."
v1G7D TIL CBS created a show called Kid Nation (2007), where 40 kids ages 8-15 spent 40 days without direct adult supervision in a ghost town where they had to create a sustainable community
eb9J TIL: There is an island known as “Just Room Enough Island” that has just enough room for a tree and a house.
WDgd TIL the warning tones played before an Emergency Alert Broadcast contain information and automatically activate the system by audio alone. Playback of the recorded tones (like in an an ad) over TV or radio can kick the actual system online, resulting in heavy fines.
rOad TIL people believed that sufferers of Williams Syndrome, who have charming & extraordinarily kind personalities, had extraordinary, even magical powers. The word ‘elfin’ was used to describe their facial features. This is believed to be the origin of elves, fairies & 'wee folk’ in English folklore.