[gsf_emergency_2]

YouTube and wikipedia are better than quantmag for this

(Clebsch or Klein surfaces)

https://en.wikipedia.org/wiki/Cubic_surface#/media/File:Cleb...

https://youtu.be/lLBOiiFs87Q

https://en.wikipedia.org/wiki/Clebsch_surface

https://nathanfieldsteel.github.io/2019/10/15/27-Lines.html