› added 5 years ago

112

TIL that Vitamin D Deficiency is very dangerous and it may lead to loss of bone density & fractures

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nZQP TIL that Mr. Rodgers was color blind, he went swimming every morning, and never smoked or drank.
W7n4 TIL in WWI, a dog named Stubby was promoted to sergeant in the US Army for locating and effectively capturing a German spy.
YpVxr TIL that, with war looming, President Wilson - had he lost the 1916 election - pragmatically planned to avoid a long lame-duck period by appointing his opponent, Charles Evans Hughes, Secretary of State, with Wilson & his VP then resigning, thereby making Hughes president ahead of schedule.
4XZaw TIL although regular concrete needs steel formwork, 3D printed concrete has different methods of achieving structural integrity
p8Bxp TIL that Daryl Davis, a black musician, is credited with dismantling the entire KKK network in Maryland. He did this by befriending many members, even going so far as to serve as a pallbearer at a Klansman's funeral.