› added 11 years ago

92

TIL that the bulbs used in fire sprinkler systems are color-coded to represent the temperature required for the sprinklers to be activated.

Read more wikipedia.org

via reddit.com

MejeA TIL that in German there are two verbs for eating, one exclusively for humans and one for animals. In fact, you can use the animal verb to imply (impolitely) that someone eats like an animal.
wL1lW TIL: Helium can kill iPhones due to a susceptibility in the processor oscillator.
kJaAm TIL that International Shooting Union barred women from shooting with men in 1993, after Zhang Shan won the gold medal in Skeet Shooting in 1992 Barcelona Olympics.
jGrj TIL That redheads experience more pain and require about 20% more anesthesia when going into surgery because a gene that influences their red hair color also influences pain receptors in the body.
6EmX8 TIL that the FDA says you can drink up to 4 cups of coffee a day without seeing any negative health consequences.