› added 9 months ago

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TIL that in 1950, Alfred Carlton Gilbert created a toy lab set that used actual radioactive material

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p86Gb TIL about the Tuskegee Study of Untreated Syphilis, a clinical study on African American men where they went deliberately untreated by medical professionals as part of a 40-year experiment by the US Public Health Service. Cited as "arguably the most infamous biomedical research study in U.S history"
PYQbV TIL even animals like jellyfish that lack brains need to snooze. Biologists have discovered that like people, jellyfish hit the hay & have the same trouble we do waking up. Because these creatures are very low on the animal family tree, the work suggests that the ability to sleep evolved quite early
6Ep9Z TIL Sunspots are used to observe the sun's rotation and have an average lifespan of 2 weeks. A magnification of 40x-50x in a filtered telescope shows a full-disc view of the Sun, and if sunspots are present, they will appear quite small
VExQ TIL L. Ron Hubbard took a trip to China and in his journal he wrote down his thoughts of the Chinese “They smell of all the baths they didn’t take. The trouble with China is, there are too many chinks here.”
YpJov TIL Michael Keaton pranked Mister Rogers by putting a sex doll in his set closet. Rogers responded humorously to the prank by waltzing the doll around the set.