› added 12 years ago

194

TIL NASA built a wind tunnel in 1965 that could reach speeds of Mach 50.

Read more history.nasa.gov

via reddit.com

BjQk TIL that an unborn horse has a rubbery covering over its hooves to protect its mother from being harmed during gestation and birth. They fall off almost immediately as the foal tries to stand.
5an8 TIL that in 1940, while fighting the Battle of Britain and desperate to gain American support to win WW2, Great Britain handed over technologies to the USA that included radar, sonar, plastic explosives, the jet engine and the first practical calculations for the atomic bomb.
7rrQX TIL That The Evacuation of British Gold to Canada During WWII Was the Largest Transfer of Wealth in History
WywA TIL that in 1982 a journalist sent out word-for-word copies of the screenplay for “Casablanca” to every Hollywood film agency. Of the 85 that read it, 33 recognized it and only four made an offer for it. The other 48 rejected the script outright.
DQ44Y TIL the last Civil War widow died in 2020.