› added 8 months ago

18

TIL that feel-good, bubblegum pop is an indicator of a recession

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LQrrP TIL 50yrs ago the Arecibo Message was sent into space to communicate human existence to potential extraterrestrial life.
OGjpY TIL Commercial tea bags release millions of microplastics and nanoplastics when in use. For the first time, the study demonstrates how these particles can enter the bloodstream and travel throughout the body after being absorbed by human intestinal cells
4gPg TIL The VA lobotomized thousands of WW2 veterans that suffered from PTSD.
KOKlQ TIL about Carbon Chauvinism, a term coined by Carl Sagan which assumes that all extraterrestrial life must be made of carbon because carbon-based humans are unable to imagine life made of radically different biochemistries.
Y7MYx TIL around 20% of sperm are abnormal and may possess two heads, no heads, or two tails. Known as "kamikaze sperm", they are theorized to attack and kill the sperm of rival males with enzymes and block them from reaching the egg.