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TIL that scientists now have the ability to grow conductive wires inside real roses, allowing the leaves to be darkened or lightened with a zap of electricity.

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P4Le TIL milk has peptides that mimic the effect of opiates in the brain causing very real cravings and opiate withdrawals for milk lovers.
X4A6 TIL The smell of books makes some people need to poop. The Mariko Aoki phenomenon is a phenomenon consisting of the urge to defecate while visiting a bookstore. Originating in Japan, it is named for the woman who first publicized such an urge.
nWypW TIL That James 1 of Scotland died was murdered after getting stuck in an escape tunnel he himself had blocked up three days earlier to prevent the loss of his tennis balls. As an avid player he often hit the balls out of the court and they would often be lost in the aforementioned sewer tunnel.
5V98r TIL During the shooting event of the 1965 World Pentathlon Championships, Herbert Polzhuber drank 10 glasses of beer and a bottle of cognac, stepped onto the shooting platform, shot all his bullets directly into the ground and passed out. Alcohol would be banned from shooting events shortly after.
oRvwE TIL Atrazine, one of the world's most widely used pesticides, wreaks havoc on the population of frogs, emasculating 75% of makes, and turning 1/10 into females.