› added 4 years ago

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TIL a toilet hose & spray head ($15) must not be installed without an RPZ valve ($400). The fresh water supply to your house and your whole street can be infected with bacteria.

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78MGr TIL of the Salem Hypothesis which is based on the observation that people who claim scientific expertise, whilst advocating creationism, tend to be engineers. The hypothesis postulates that engineering predisposes people to creationism (with the sole exception of chemical engineers).
VBL0m TIL that after data reviews, "no evidence [was found] that placebo interventions in general have large clinical effects"
R08Q TIL in 1998, during a soccer match in the Congo a lightning bolt struck the pitch and killed all 11 members of one team. The other team was left unscathed.
GARaj TIL about Elizebeth Smith Friedman, a pioneering female codebreaker who decrypted mob codes during prohibition and busted up Nazi spy rings in South America, yet was robbed of her due credit by J. Edgar Hoover and died in obscurity in 1980, never revealing her immense wartime service.
epRJD TIL of "Snickers salad", a dish from the Upper Midwestern United States often served at potlucks that consists of chopped-up Snickers bars, Granny Smith apples, Cool Whip, and pudding. Popular lore states it is either a salad or a dessert depending on which end of the table it is sitting at.