The Torus: a compact, oriented 2D-manifold with genus 1

Precision machined Titanium & Stainless steel ring Tori. A topologist's best friend.

Funding Campaigns

c654bf7eee2ac3d9bdb132b1e87190f1_original
3
2

Ended
over 1 year ago

435%
$28,843
Raised
$6,626
Goal
View On Kickstarter
312
Backers
Completed
Status

Ratings

Community Ratings
Reasons

Comments

R L.
R L.
May 22, 2023

expensive 

David L.
David L.
May 20, 2023

I like some of their previous Projects, but this one doesn't do it for me. I'd rather have the regular donut. 😉

Chaim L.
Chaim L.
May 19, 2023

if it cost $20 for a multi-pack, maybe for my desk. But in reality, what does it do?!

sven j.
sven j.
May 18, 2023

I mean it looks cool I guess, but doesn't do anything lol

Ben S.
Ben S.
May 17, 2023

Euler Characteristic V-E+F=2, which might look familiar to most in this form,  F+V=E+2, where (F=faces, V=vertices, E=edges)!This is amazing this would be so expensive to have custom CNC-ed for you

Mr M.
Mr M.
May 17, 2023

i could see getting it as a Art piece 

Benjamin M.
Benjamin M.
May 17, 2023

Not something I or 90% of people would want 

Benjamin M.
Benjamin M.
May 17, 2023

A math professor's paper weight? 

Simon B.
Simon B.
May 17, 2023

Hmmmm dunno why would I use this product.