› added 5 years ago

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TIL that in the same way helium can make your voice go high-pitched by breathing helium, you can make your voice go deep by breathing Sulfur hexafluoride

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v18x8 TIL When a male giraffe is looking to impregnate a female, it brushes her read end with his nose to prompt urination. When she starts to pee, the male tastes the urine so he can the detect hormones that confirm whether she is ready to mate.
BLjr TIL that The Pillars of Creation (as photographed by the Hubble telescope) don’t exist anymore. They were destroyed 1,000 yrs ago by an advancing supernova, but the light takes 7,000 yrs to reach us so they still appear intact.
eWp6 TIL that relativistic effects only become truly severe at very close to light speed: even someone travelling at 0.9 times the speed of light will only perceive time passing 2.29 times faster than it would be perceived from a stationary point of reference.
jGnn TIL Shirley MacLaine’s daughter claims her famous mom believed that her daughter’s father, Steve, was not her real father but a clone of the real one, an astronaut named Paul. For years Steve conned MacLaine into paying him up to $60,000 a month for “Paul’s space travel expenses.”
awjoo TIL that links that give no indication of where they'll take you, such as "click here" and nondescript images, have been known as "mystery meat navigation" since 1998. The term makes an analogy to how the producer of mystery meat knows what's in it, but the eater doesn't.