› added 4 years ago

121

TIL your brain/eyes will generate a "light show" (known as the Prisoner's Cinema) if kept in darkness for long periods of time. The phenomenon is reported by prisoners confined to dark cells and by others kept in darkness as well as; truck drivers, pilots and practitioners of intense meditation.

Read more wikipedia.org

via reddit.com

7Z5p TIL that in 2000, an Oklahoma schoolgirl was suspended for casting a spell on her teacher, which allegedly made him ill and caused him to be hospitalized.
6En6Y We’ve been conditioned to think of Covid-19 as a respiratory disease—but it’s not just about the lungs. Evidence is emerging that the coronavirus can cause heart damage in people who’ve had mild symptoms or none at all, especially if those people exercise while they’re infected. If you've just had Covid—even if you didn't have symptoms—you need to be aware of myocarditis. That’s cardiologist-speak for what happens when the muscular walls of the heart become inflamed, weakening the organ and making it more difficult for it to pump blood. It’s not a newly discovered condition, and it turns up pretty rarely, but when it does, it’s most often triggered by an infection. Strenuous activity while the heart is weakened can cause swelling in the legs, dizziness, shortness of breath, and—in serious cases—irregular heartbeat, cardiac arrest, and sudden death.
ovJK TIL that the atomic clocks aboard GPS satellites are programmed to compensate for time dilation due to General Relativity. Otherwise, after just one day, GPS devices would show coordinates that would be off by around 10Km!
Kyb4 TIL that Satanists performed a “Pink Mass” on the grave of Fred Phelps’ mother in order to turn her into a lesbian in the afterlife
R5oel TIL in 1985, Wes Craven directed an episode of The Twilight Zone starring Bruce Willis