› added 3 weeks ago

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TIL that “fire rainbows” are real. They’re called circumhorizontal arcs and happen when sunlight passes through ice crystals in high-altitude cirrus clouds—creating vibrant, horizontal bands of color in the sky. I had no idea these existed until today.

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via reddit.com

mx15x TIL a 10,000 man Mongol army was destroyed by Egyptian Mamluks after being fooled by a feigned retreat and getting surrounded, a tactic often used by the Mongol's themselves
JYlM1 TIL in WW2 a female feudal lord took control over 275 Nazis to force them to fix up her island after German occupation ended in Sark
rM9w TIL at a soccer match in Brazil in 2013, a referee stabbed a player to death. He was then quartered and decapitated using a sickle and his severed head was placed on a spike on the field.
jKOv TIL that OJ tastes horrific after brushing your teeth because of the molecule “sodium layryl sulphate” in toothpaste, which makes your tongue much more sensitive to bitter tastes.
XNjk TIL that in August 1967, the U.S. Defense Department published a 200 page report concluding that most American soldiers didn’t fully comprehend the Geneva Conventions. No actions were taken; the My Lai Massacre in Vietnam occurred 7 months later.