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TIL The FDA’s guidance documents for additives & plastic safety do not establish legally enforceable responsibilities. Instead, guidances describe the Agency’s current thinking on a topic and should be viewed only as recommendations, unless specific regulatory or statutory requirements are cited.

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via reddit.com

jjER TIL that the Internet has a patron saint named Saint Isidore of Seville. He compiled the knowledge of the ancient world and made it accessible for his own and future generations around 600 AD.
eMkL TIL that the UK is the only country to have successfully developed a satellite launch capability and then abandon it.
QNE5a TIL there's a species of caterpillar, belonging to the Nematocampa genus of moths, that responds to loud noise (e.g. shouting) by enlarging long appendages on its body until fully erect
JYvBV TIL a century after the bloody and violent Hatfield–McCoy feud in West Virginia/Kentucky, the two families faced off again on the game show "Family Fued" in 1979. The teams received a mannequin for every match they won as the producers thought it would be funny to “litter the stage with bodies”.
r5Lw TIL A supermarket chain in the Netherlands has a policy that if all queues have 4 people in them and not all checkout lanes are open yet, then you get your groceries for free.