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TIL Stop signs used to be BLACK ON YELLOW
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familyhandyman.com
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pYdQQ
TIL that Apple stopped making IPods in 2022
R7We9
TIL A motherboard manufacturer once built a cooling fan that uses the waste heat from the CPU to run.
kKYe
TIL menstrual stem cells (found in period blood) could be used to create more tissue types than other adult stem cells, including bone, blood vessel, fat, brain, lung, liver, pancreas, & heart. They grow more readily & rapidly than other types of adult stem cells from bone marrow & umbilical cords.
x6XEk
TIL about the "3-S Treatment" which stands for "Shoot Shovel and Shut up" a method used primarily in rural areas to prevent restrictions being place upon owned land due to the presence of Endangered Species by killing them and burying the evidence before they could be discovered by the government.
KOll6
TIL of Benjamin Lay, a radical abolitionist Quaker from 19th c. PA. He lived in a cave, ate only vegetables & fruit, & threatened slave-owning Quaker's with God's wrath. Also he was a hunchback dwarf.