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TIL the “Subway smell” emanating from Subway restaurants is due to the specific combination of chemicals released from baking bread and cookies, Italian herbs, vinegar, and cheese, and it can be replicated at home.

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gMwwA TIL there’s a protein made by placenta cells called syncytin which aids in the attachment of the placenta to the uterine wall, making it essential for nutrients to get to the developing fetus. The gene that codes for the protein actually came from a virus millions of years ago.
bml7 TIL that on April Fool’s Day, 1976, the BBC convinced many listeners that a special alignment of the planets would temporarily decrease gravity on Earth. Phone lines were flooded with callers who claimed they felt the effects.
8eKpV TIL Albert Kahn revolutionized factory construction with reinforced concrete in 1903. By 1929, his firm trained Russian architects, and by 1937 he had designed 19% of U.S. industrial factories. As of 2020, about 60 of his buildings are listed on the National Register of Historic Places.
GYVn7 TIL a city in China is enforcing a social credit score system for dog owners. Owners begin with 12 points but lose points for walking a dog without a leash, not cleaning up poo or being reported for disturbance. Loss of 12 points results in loss of the dog until its owner passes a test on pet policy
Z8Djp TIL a man who regularly said that God sends natural disasters to punish gay people ended up having his home destroyed in a natural disaster