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TIL that the CocaCola-Mentos reaction is not a chemical but a physical reaction. Gas dissolved in CocaCola needs a surface to form on. We can increase that surface by adding Mentos. The microscopic surface of Mentos is quite rough, so it allows a lot of gas to form and it creates a lot of pressure.

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KY1Q TIL that Greco-Roman wrestling was invented by a french soldier, and named Greco-Roman to make people think it was the sport practiced in the classic civilizations.
rQ0x TIL The number one soft drink in Scotland isn’t Coke or Pepsi, its Irn-Bru. A company known for controversial ads, such as a mother singing about how she used to be a man, and another ad where a woman says she’d never gotten so much pleasure from 4 and a half inches before.
0wEER TIL Bacchus Ladies are elderly female prostitutes in South Korea. They traditionally sold 'Bacchus' drinks, but the term is now synonymous with elderly prostitution. Ladies (mainly in 60s and 70s) solicit men in public parks. Most earn around $168 to $252 a month.
mbxR TIL in 1919, a British officer ordered his troops to fire at a nonviolent gathering of people celebrating a religious festival in India, leading to 1000 deaths and 1500 injuries.
OGbEY TIL that grapefruit juice can interact in unpredictable ways with many drugs. This can occur even when eaten few days before taking the drugs due to the irreversal blocking of critical enzymes needed to metabolize the drug. Other fruits like citrus, apple and pomegranate have similar issues.