The object we thought was impossible

2023-07-31

[public] 515K views, 49.1K likes, dislikes audio only

4K

The first 100 people to use code SCIENCE at the link below will get 60% off of Incogni: https://incogni.com/science

Steffen's polyhedron is a flexible concave polyhedron. Euler thought such a shape was impossible. I also show infinitesimally flexible polyhedrons and bistable polyhedrons.

Here's Ivan's channel: https://www.youtube.com/@ivanmirandawastaken

Here's my Discord server: https://discord.gg/B6uNzAgshy

Additional filming by Nicole Jacobus

You can buy my books here:

https://stevemould.com/books

You can support me on Patreon and get access to the exclusive Discord:

https://www.patreon.com/stevemould

just like these amazing people:

Tj Steyn

Pavel Dubov

Lizzy and Jack

Jeremy Cole

Brendan Williams

Alan Wilderland

Frank Hereford

Lukas Biewald

Damien Szerszinski

Heather Liu

Grant Hay

John Zelinka

Paul Warelis

Matthew Cocke

Nathan Blubaugh

Twitter: http://twitter.com/moulds

Instagram: https://www.instagram.com/stevemouldscience/

Facebook: https://www.facebook.com/stevemouldscience/

Buy nerdy maths things: http://mathsgear.co.uk