› added 11 months ago

161

TIL that Detroit has a small canal system

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via reddit.com

VAXG TIL once you’ve had an infection, 1 cell that produces the right antibodies for that virus is stored in your bone marrow for the rest of your life, readying the immune system to respond quickly and efficiently if that virus ever invades again.
4kZOg TIL Despite having the highest tea consumption today (6.96lbs per capita/per year), Turkey mostly drank coffee until the 1950s. Shortages and inflation led to a massive governmental effort to expand tea growing in the early 20th century.
O6R6 TIL Jim Lovell said in his book that if the Apollo 13 crew stayed still long enough when the electricity shut off, their body heat would form a cocoon of warm air around them. With everything shut down as much as possible he said even a slight movement would destroy the layer of heat.
nW57b TIL only one person has ever lost the USA VP election and gone on to win the Presidential election: FDR, who won 4 times.
JYW9m TIL about John Howard Griffin, a journalist who in 1959 took anti-vitiligo drugs and spent 15 hours daily under an ultraviolet lamp to temporarily "become" a black man and travel through the South for six weeks.