ViHart's latest video reminds us once again of the value of idle hands. In it, she demonstrates how easily our humble appendages can make us look like fiddly geniuses – or at least like common math ...
WEBVTT 3 NEW AT 5:30-- A MATH MYSTERY IN PITTSBURGH-- IS BACK!! REMEMBER THESE? PROTRACTORS-- USED TO MEASURE ANGLES-- GLUED ALL OVER THE CITY! YOU REALLY DON'T NOTICE THEM UNTIL SOMEONE POINTS THEM ...
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