› added 4 years ago

114

TIL about Sgt. William Carney, the first African American to win the Medal of Honor

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via reddit.com

ZppPp TIL of all high income countries, the US has the highest rates of overweight and obesity, with a third of the population obese. This rate projected to rise to around 50 percent by 2030.
rNwMW TIL because of its slow rotation one "day" on mercury equals 59 earth days. It orbits the Sun in a 3:2 spin–orbit resonance, rotating on its axis exactly three times for every two revolutions around the Sun meaning a day lasts twice as long as its year.
jeGQ TIL There is a type of shrimp which has the hardest “punch” of any animal, approximately the same acceleration as a .22 caliber bullet. They have been known to break through aquarium glass.
88Xb TIL that if you have a bone marrow transplant, your blood can have the donor’s DNA and your salival and hair DNA will be your own. It has caused people to be wrongly arrested based on DNA evidence.
78eXP TIL That biphasic sleep was a common practice in pre-industrial societies where people would have their first sleep around 9 p.m. or 10 p.m., wake up around midnight then wake up for one or two hours to engage in activities such as reading, praying, or working