› added 12 years ago

435

TIL Hackers made a “sniper rifle” that can hack bluetooths from over a mile away.

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vPpR TIL that praising a child’s intelligence is counterproductive and ultimately makes them dumber. However, praising the process of problem solving makes a child smarter.
dD5Mr TIL that Vitali Klitschko was never knocked down in his boxing career and also had a KO percentage of 87%.
wod6P TIL that Americans didn't brush their teeth regularly until after WWII. American GIs were required to brush their teeth, and brought the practice home with them.
VMZ0k TIL that during the Siege of Syracuse (213-212 BC), Greek mathematician Archimedes refused to abandon the geometry equation he was working on during a battle. His last words before being killed by a Roman soldier were: “Don't disturb my circles!”
Egrrd TIL spiders can taste