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TIL - Anni-Frid Lyngstad of ABBA was one of the backing vocalists singing the words "Moviestar, oh Moviestar, oh-oh-oh" on Harpo's hitsingle Moviestar from 1975

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LkPm0 TIL that in the 1940s, US funded doctors went to Guatemala to test STD treatments by deliberately infecting 1,308 locals between the ages of 10 and 72 with gonorrhea, syphilis, and chancroid, all without their informed consent. The US doctors gave only 52% of subjects any treatment. 83 died.
awKMb TIL the village of Larderello has been experimenting with Geothermal Energy for nearly 200 years. Initially the first commercial generators could only power four light bulbs. But having slowly expanded the past century, today it generates 4,800 GWh/year, or 10% of global geothermal production.
9wlpp TIL in 2001, Disneyland tried to re-theme their aging "Submarine Voyage" attraction around Atlantis: The Lost Empire, but the movie flopped. They tried again with Treasure Planet, but that was a flop too. They finally succeeded with Finding Nemo in 2005.
bdbj TIL a think tank at Oxford University believes that the prison industry may begin exploring psychoactive drugs that elongate the perception of time, either reducing actual incarceration times or making sentences for heinous crimes feel like an eternity.
ZQpD TIL that lightning can cause red, jellyfish-shaped flashes as big as 48 by 48 km to appear above thunderclouds. These are called sprites (air spirits), after their elusiveness, and are actually clusters of balls of plasma.