An application of the curves and surfaces of constant width: how drills can create squared holes https://t.co/xuXWSdS2yw | https://t.co/fmImu17eD1 #MathMonday pic.twitter.com/5rjAJcdo37
— Massimo (@Rainmaker1973) July 23, 2018
from Twitter https://twitter.com/GuideCalculator
July 23, 2018 at 08:05PM
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