› added 9 years ago

99

TIL there are no bridges over the Amazon River

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Eg9DW TIL that, because white chocolate is made using only the butter or fat from the cocoa bean, but no cocoa solids, it isn't technically chocolate at all.
690Jl TIL about Frise ailerons - ailerons that don't pivot at the edge but rather somewhere in the middle. This means that the aileron dips below the wing creating addition drag. This is considered desirable as it helps counter the induced yaw produced by the opposite aileron, making flight easier
Y79pr TIL: The metalhead gesture of making the “devil horns” is actually an apotropaic gesture, which is a superstitious sign to ward off evil spirits and not glorifying the “devil’s music”
rRDvM TIL about a Confederate cemetery in Oxford Mississippi. Currently there is only one large marker for the cemetery, there use to be individual headstones for each plot but years ago the groundskeeper moved them to cut the lawn and forgot where they belonged.
MebE8 TIL that AK-47 stands for Avtomat Kalashnikova, named after Mikhail Timofeyevich Kalashnikov, who designed the accepted version of the weapon in 1947.