› added 1 year ago

178

TIL that "Bee Flies" exist, and they look like little fluffy flying narwhales!

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690Nm TIL the fun fact of “Your body has around 100,000 km of capillaries alone, the tiniest of your blood vessels, with a surface area of around 1000 square meters." Is not correct. The real value is closer to 9000 and 19,000 km.
WkJ04 TIL: About 40 percent of the calls that come in to the emergency hotline (911) in San Francisco are deemed non emergencies. Examples include people complaining about rap music next door, car towing and, in one case, no internet.
N7P5N TIL in the early years of the Macy’s Thanksgiving Day Parade, the helium balloons were released into the air instead of being deflated. A return address was stitched into the balloon and a $100 reward was offered if they were returned. One landed on a house and one nearly caused a plane crash.
EdJd TIL that in when David Reimer was born in 1965, his doctor had accidentally burned off his penis during a failed circumcision. His family, under the guidance of Dr. John Money, decided to raise him as a girl, to prove that nurture, and not nature, defines sexual identity. It failed
b64mZ TIL rowing increases parts of the heart to enlarge so it can pump more blood. The exercise increases blood pressure and strengthens heart walls as well.