› added 3 years ago

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TIL about potash evaporation ponds in the Utah desert. Depending on the amount of potash inside the pools, they can turn turquoise, orange, yellow and even white. About 700 - 1000 tons of potash are produced very day, which can then be used to fertilize plants and treat industrial water.

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via reddit.com

KYv9w TIL that humans will regrow a rib equally as strong as the original within only 2 to 3 months of having it surgically shortened.
xjo0 TIL Nazis use to sterilize prisoners by placing in a room and asking to complete forms, which took two to three minutes. In this time, the radiation treatment was administered and, unknown to the prisoners, they were rendered completely sterile
6ERL8 TIL that The Sateré-Mawé tribe of Brazil have a ritual where they subject themselves to the sting of over 120 bullet ants, which have a sting 30 times more painful than that of a wasp.
epnEE TIL An estimated 1-3% of the population is virtually allergic to much of their food, especially processed or canned food and may not know it: Histamine Intolerance: the Current State of the Art
dD7k9 TIL about Bikeshedding: draining time & resources on insignificant details, so the core issues are ultimately neglected.