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TIL that in the entire history of mankind it is estimated that there have been 3,000,000 shipwrecks. We have explored less than 1% of them. The Battle of the Atlantic alone, which spanned nearly six years during World War II, claimed over 3,500 merchant vessels, 175 warships, and 783 submarines.

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MXrV TIL There is a water park in Germany that has banned women from using an extreme water slide because it has caused genital injury to 6 women
ADXyx TIL on 9-11 immediately after US airspace was closed, Canada implemented "Op Yellow Ribbon" & landed 250 US bound flights with 45k passengers in 14 smaller airports across the country. Canadians in communities such Gander (10k) also welcomed up to 6,000 stranded passengers into their homes.
M1xB TIL women were not the first choice as telephone operators. Prior to September 1, 1878, when a woman named Emma Nutt became the first female operator, boys were the preferred choice. It soon became apparent, however, that boys would insult, curse at, and prank the customers.
kOVpW TIL Electrolysed water will kill spores and many viruses and bacteria and costs less than a penny per gallon. Turns out zapping salt water with low-voltage electricity creates a couple of powerful yet nontoxic cleaning agents.
pPy4 TIL Oakley makes goggles with a HUD that tells you speed, elevation, jump dynamics, and links to your smartphone