#thoughtfullness

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waleedtee

7y

Klein bottles and One-sided walls: Are we inside or outside ?

Klein bottles and One-sided walls: Are we inside or outside ?

Walls separate spaces. But which side is outside and which side is inside? This is a non-trivial question. And In some cases, walls can be in fact one-sided. Let's explore together some interesting cases.

$ 0.088

30

fresh-faced

9y

OMG..

$ 0.118

6