› added 9 years ago

381

TIL that the government of the Czech Republic has renamed the country “Czechia”

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8aBm8 TIL of Centralia, Pennsylvania a coal mining town in which its coal mine has been on fire since 1962 and still burns to this day.
8YmZ TIL Fetal Alcohol Spectrum Disorder can be recognized on people of all ages by examining several distinct facial features, such as a “smooth philtrum” (AKA lack of groove between nose & lip)
VMKB8 TIL On a US Navy submarine using the "emergency blow activator, or 'chicken switch,'" is "a last resort in emergency situations." "Throwing the switch immediately blasts large volumes of compressed air into all of a submarine's ballast tanks, bringing the boat to the surface as quickly as possible."
Ynkd TIL a high-school girl derived equations showing that in order to fold anything in half, it must be pi times longer than its thickness
yVn1V TIL WWE Smackdown originally aired on UPN before they merged with The WB and it became The CW