› added 9 years ago

645

TIL There is only 1 known voice recording of Hitler not yelling.

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lENV TIL Adult California ground squirrels have a protein in their blood that allow them to survive rattlesnake bites. The squirrels also heat up their tail and wave them to let the rattlesnake know they are aware of them since rattlesnakes have infrared vision. They don’t do this with other snakes.
v1PK TIL on September 19, 1985, when Frank Zappa famously testified before Congress to protest the PMRC’s attempt to legislate and censor heavy metal music lyrics, Zappa compared the proposed legislation to “treating dandruff by decapitation”
KOjxa TIL reflector (or reflex) sights have been used in some degree on weapons for just over 100 years
o0Q7 TIL when an architecture student alerted engineers that an NYC skyscraper might collapse in an upcoming storm (Hurricane Ella), the city kept it secret then reinforced the building overnight (while police developed a ten-block evacuation plan).
GYPPg TIL Even already in 2018, Ukraine had to spend 5 - 7 % of its national budget on recovery activities related to the Chernobyl disaster