A long-standing Pittsburgh mystery is growing again!Observant Pittsburghers have surely noticed all of the colored protractors glued to things in public places across Pittsburgh’s neighborhoods.
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 ...
Observant Pittsburghers have surely noticed all of the colored protractors glued to things in public places across Pittsburgh’s neighborhoods. The colored protractors first showed up a few years ago.
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