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TIL hair smells bad when burned because keratin needs large amounts of the sulfur-containing amino acid cysteine for polymer crosslinking, which give it it's rigid properties

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6EDPm TIL more than half the US states have laws requiring employers to give people time off to vote. Some states even require the employer to pay your wages while you're voting!
M7GaB TIL in 2018, Scientists identified the earliest known animal in the geological record as a 558-million-year-old oval-shaped creature known as Dickinsonia that may have borne a superficial resemblance to a segmented jellyfish.
ZpMZG TIL that skin conditions such as acne, rosacea, etc. can occur after a traumatic event or with a person suffering from PTSD
GWXG TIL every year in the mekong river in Thailand, hundreds of fireballs erupt from the surface of the water, and nobody knows what causes them. locals believe a mythical serpent called Naga spits fire from the water. The event is known as Naga fireballs.
gMB4D TIL: 6 years after resigning, Nixon testified on behalf of former FBI assistant director Mark Felt at Felt's own trial, and gave money to Felt's defense fund. In 2005 Felt revealed he had been "Deep Throat", Bob Woodward's source while breaking the Watergate scandal that led to Nixon's resignation.