Portals with an impossible shape (cylinder, Mobius strip, knot)

I visualized other very strange portals, most of which was discovered by a professional mathematicians.

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Chapters:

00:00 - Cylindrical portal
01:34 - Intro
02:02 - Mobius strip
04:31 - Mobius monoportal
05:17 - Hopf link
05:43 - Trefoil knot
13:11 - Other portals
14:18 - Outro

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Links:

[1] -    • What happens if you put a portal in a port...   - video about portal in a portal
[2] -    • Portal with 3 parts: is this possible?   - video about portal with three parts
[3] - https://kenbrakke.com/polycut/polycut... - PolyCut
[4] -    • Self-Hiding Knot Portal   - ZenoRogue video about knot portals
[5] - https://go.2gis.com/z95v9 - cubic trefoil knot in Almaty, Kazakhstan
[6] -    • Thurston, Knots to Narnia   - portal to Narnia by Bill Thurston
[7] - https://www.imaginary.org/program/kno... - KnotPortal program
[8] - https://contest.zenmagnets.com/56-5-c... - cubic figure-eight knot by ZenMagnets
[9] - http://paulbourke.net/geometry/borrom... - variants for Borromean rings
[10] - https://optozorax.github.io/portal/ - my web demo
[11] -    • Portal Teaser Trailer   - portal trailer (music source)

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Music:
Where We Wanna Go - Patrick Patrikios
Stick Bug song - Bee Swarm Simulator
4000 Degrees Kelvin - Portal OST

Patreon:   / optozorax  
Discord:   / discord  

#portal #impossible #3danimation