› added 10 months ago

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TIL Semen can trigger anaphylactic allergic reactions in some people if their partner had recently eaten the allergen food

Read more pubmed.ncbi.nlm.nih.gov

via reddit.com

yQWeV TIL that in 1974 the 1946 movie "It's A Wonderful Life" fell into public domain because the studio failed to renew it's copyright. As a result, it was aired a lot, which explains why it became so popular even though it flopped in theaters. The studio got rights to the movie again in 1993
Br7Ve TIL that theatres were among the first air-conditioned spaces available to the public, partly why theatre was and is still so popular today.
J17M1 TIL the US, didn't switch to the Gregorian calendar until 1752. By that time, the difference between their calendar and Gregorian had accumulated to 11 days. To adjust for this difference, September 2, 1752, was followed by September 14, 1752, effectively omitting 11 days.
emeL TIL That Lockheed Martin is working on a hypersonic spy plane to replace the famous SR-71 Blackbird
0d9R1 TIL: Orban, a Hungarian iron founder, originally offered to cast giant cannons for the Byzantines, who couldn't afford it. The Ottomans could, and proceeded to level Constantinople's walls with said cannons.