https://www.idblanter.com/search/label/Template
https://www.idblanter.com
BLANTERORBITv101

Drinking From Straw Drawing Reference : A topologist would denote this s¹ × i, where s¹ is usually thought of as the unit circle in the plane and i is the interval 0, l (here l = the length of the straw).

Tuesday, January 5, 2021