› added 11 months ago

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TIL that the Hoover Dam is still curing. Engineers at the time estimated that it would take around 100 years for the concrete to completely cure.

Read more study.com

via reddit.com

69Grl TIL that no-one knows what the "H." stands for in "Jesus H. Christ". Some speculate it's "Harold", as in "Harold be thy name".
Jdo1 TIL that for 50 years, the Nazi-style salute was the official salute for the American flag.
7GMX TIL: The province of Alberta, Canada has border guards dedicated to keeping rats out. They plant poison and dig up individual burrows. The entire province is rat-free, and rats are only allowed in zoos.
MRBb TIL in 2006, soup kitchens in France associated with a far-right organization were closed down by police because they only served pork. Protesters accused the kitchens of discriminating against Jews and Muslims who can’t eat the meat due to their religion.
11eX TIL there is a mosquito used in biological pest control because its young eat other mosquito larvae. It is called the Elephant mosquito due to its size, and the adults feed on nectar, not blood.