› added 6 years ago

335

TIL that some of the concrete in the Hoover Dam has still not dried after 80+ years

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ZpPoQ TIL that as of 2022, Canada and Denmark now share a land border
69YPX TIL that the sun is extremely loud
J1ww4 TIL that the current world speed record for a commercial train on steel wheels is held by the French TGV at 574.8 km/h (357.2 mph), achieved on 3 April 2007.
PpkL TIL Matt Groening named the Simpsons family after his father Homer, mother Marge, and sister Lisa. Bart was an anagram of the word brat.
yQP5X TIL the world's largest dam is so big that NASA scientists calculated that shift of water mass stored by the dams would slow down earth's rotation and increase the length of the earth's day by 0.06 microseconds.