› added 9 months ago

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TIL about the Doorway Effect, where the simple act of walking through a doorway (both physical and virtual) can cause us to forget what we were just doing.

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OGPX1 TIL the East River that separates Manhattan from long island is not actually a river but rather a drowned valley.
KaJ9 TIL after his wife was denied access to a village well by upper caste members, an Indian man spent 40 days digging his own well by hand. It now quenches the thirst of an entire village of Dalit (lower caste).
woKjo TIL There is a hotel and spa in Czechia where you can get a bath in radioactive water.
VMJB8 Til that The first sunglasses date back to the prehistoric Inuits, who wore a piece of flattened ivory over their eyes (made from walrus bones) with narrow slits to look through that blocked harmful rays of the sun reflecting off the ice.
8alP4 TIL the Ozma problem is an old problem asks if we could communicate the concept of left and right to an alien over the radio. In the 1950's physicists found a way when they observed that certain radioactive decays actually "care" about if the atom is spinning clockwise or anti-clockwise.