Viewing a single comment thread. View all comments

Rhovanind t1_je75sq3 wrote

Reply to comment by nonresponsive in You can't dig half a hole by Leafsong-Warriors

Luckily we have a field of mathematics to solve problems like this. "Topology... is concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling, and bending; that is, without closing holes, opening holes, tearing, gluing, or passing through itself" (Wikipedia).

From my (admittedly basic) understanding, a straw is topologically identical to a donut (torus), which has only 1 hole.

3

Vincent541 t1_je7739u wrote

You topologists also say that a coffee mug is topologically identical to a donut. What's next cows are spheres?

4

wj9eh t1_je77bno wrote

A cow can be simplified to a sphere.

1