Check out Geoff’s video from the same day!
https://youtu.be/IIMbF_Amuc4
Thanks very much to Vicki and Geoff for all their help.

If you want some more maths, and the ‘rules’ for finding a Tube Knot, check out the bonus content video on my second channel.
https://www.youtube.com/watch?v=Qp2LD…

Henry and Sabetta also went and double-checked all of the overs and under in our knot.
https://www.youtube.com/watch?v=nJuOD…

Huge thanks to Sabetta and Henry. Here is the first video I made with them: Exploring Hyperbolic Space with VR
https://www.youtube.com/watch?v=MTfvi…
And my spherical camera video with Henry.
https://www.youtube.com/watch?v=x0gRc…

Here is everyone’s channel:
Vicki Pipe: https://www.youtube.com/user/VickiPipe/
Geoff Marshall: https://www.youtube.com/user/geofftech2
All the Stations: https://www.youtube.com/channel/UC7tt…
Henry Segerman: https://www.youtube.com/user/henryseg

Worksheet and teaching resources to find your own underground knots!
https://www.think-maths.co.uk/standup…

Here are the detailed “Carto Metro” maps you can use to check which line goes under/over which.
http://carto.metro.free.fr/metro-tram…

CORRECTIONS
– At 13:19 I call Green Park “West Park” when talking about going west. First noticed by Geoff Marshall, of course.
– Let me know if you or Geoff spot anything else!

Thanks as always for Jane Street being my principal sponsor. https://www.janestreet.com/[…]