› added 3 years ago

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TIL about Olympus Mons, the highest mountain in the solar system, which is about 2.5x taller than Everest, is about the size of Poland, and has a mile wide moat around it due to the immense weight pushing down the crust of Mars around it.

Read more wikipedia.org

via reddit.com

KOOx6 TIL in 1968, Veterans Day was originally changed to the fourth Monday in October by President LBJ. It was changed back to November 11 in 1975 by President Gerald Ford.
e09bD TIL about "Vibration white finger" also known as "hand-arm vibration syndrome". A secondary form of Raynaud's syndrome that's triggered by continuous use of vibrating hand-held machinery. Fingers and parts of the hand turn white due to prolonged vibration exposure.
9YNVM TIL of the Mayak nuclear facility: A nuclear reprocessing plant in Russia that has exposed 450,000 to radiation and was caught dumping untreated nuclear waste in the river from 2001-2004.
P1OjG TIL that after the Battle of Pilska in 811 AD, the Bulgarian emperor Krum the Fearsome had the Byzantine emperor Nikephoros l who was killed in the battle to have his skull be covered in silver in which Krum then used as a drinking cup.
Bgg9b TIL that back in 2005 a girl in London started sleepwalking and climbed a 130 feet tall crane!