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TIL Gravity ISN'T a force, as we can't distinguish between being still, moving at constant speed or falling (as all objects fall at the same speed when there aren't other involucrase forces). This is called the Equivalence principle. Here you can see some information about it:

Read more wikipedia.org

via reddit.com

9jap TIL that there is a village in Brazil where the twinning rate is 10% compared to the global 0.4%. Josef Mengele, the Nazi doctor who conducted twin “studies” at Auschwitz, relocated to Southern Brazil in 1963 leading to a theory that he experimented on locals causing an abnormally high twin ratio.
b9nd0 TIL in 2015 scientist dropped a microphone 6 miles down into the Mariana Trench, the results where a surprise, instead of quiet, they heard sounds of earthquakes, ships, the distinct moans of baleen whales and the overwhelming clamor of a category 4 typhoon that just happened to pass overhead.
AN7xn TIL that the country Bosnia and Herzegovina does, as the name may suggest, consist of two separate autonomous entities. However they are "The Federation of Bosnia and Herzegovina" and "Republika Srpska" and this is entirely coincidental.
L0Lv TIL only 2% of the worlds population is blonde.
7GKZ TIL the first legal slave owner in what would become the United States was a black man