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TIL Why there's an extra shoelace hole in your shoes!
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XVxD
TIL it takes 45 minutes to take a shit in zero gravity.
Br47r
TIL when animals are depicted on flags, they face left (the hoist) by default as they would in the wind
GAXBG
TIL of the Braess paradox wherein overall traffic flow through a road network may decrease when more roads are added.
xVYYw
TIL about Crystal Defanti, a teacher who in 2009, accidentally gave students DVD copies of her sex tape instead of a DVD with classroom memories.
mx4bP
TIL that a locked up, solar powered satellite computer was successfully turned off and on again by changing its trajectory to pass through the shadow of the moon