› added 5 years ago

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TIL that tonnage of air-conditioning is the amount of heat it removes in an hour. 1 Ton AC can remove the heat enough to melt 1 ton Ice in 1 hour.

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ne087 TIL the first person to ever observe individual living sperm cells was Antonie van Leeuwenhoek who collected a sample from his wife immediately after intercourse. In his 1677 letter to the Royal Society, “de Natis e semine genital Animalculis,” he describes a scene teeming with tiny “animalcules.”
mxZJE TIL a protein in opossum serum completely neutralizes lethal plant, animal, and bacterial toxins, including ricin, snake venoms, and botulinum toxin.
Yp54x TIL that to promote Spinal Tap’s 1992 album, Break Like The Wind, radio stations were sent a colander labelled as "Spinal Tap Official 1992 Calendar".
wL4LP TIL "Puce" is French for "flea" and represents the dark reddish stain left when a blood-gorged flea is crushed against linen. It was a favorite color of Marie Antoinette.
9olm TIL the Americans with Disabilities Act protects individuals with alcoholism and addictions to legal substances from workplace discrimination