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TIL of Rat Park. When given the choice between normal water and morphine water, the rats always chose the drugged water and died. When in Rat Park where they had space, friends and games, they rarely took the drug water and never became addicted or overdosed despite many attempts to trick them

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pYr98 TIL that fierce battles between axis and soviet forces continued in Czechoslovakia well after the German Surrender of 9 May, with tens of thousands of further casualties
ZKDB TIL that wasp spray is considered to be a more effective self-defense tool than pepper spray. It is cheap, easy to find, can shoot up to 20 ft away from the intended target, is highly accurate, and has the same desired effect when sprayed in the eyes.
LkrQm TIL Sir Arthur Conan Doyle, author of the Sherlock Holmes novels, was a first-class cricketer. He played 10 games for the MCC between 1900 and 1907, achieving a high score of 43 and taking one wicket. Also, the address 221B Baker street, is just down the road from Cricket's heaven, The Lord's.
Z8r9o TIL doing a few squats can help your brain. The alternate increase & decrease of blood flow to the hippocampus makes the brain work harder: combine this with problem solving like a sudoku, or reading, is even better
1pEP TIL the the “pink ribbon” associated with Susan G. Komen etc. was ripped off from a “peach ribbon”, created by grassroots breast cancer activist Charlotte Haley. She refused to let her design be commercialized by Self Magazine—who consulted their lawyers and were told to “just change the color”