Understand Symmetry with Kaleidoscopes Instead of Algebra

We show how to use kaleidoscopes to understand all the symmetries of all regular polytopes (polygons, polyhedra and the method extends to higher dimensions). I learnt the method by reading Coxeter's book, Regular Polytopes, and will soon release a long YouTube video explaining all

Resources

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

https://www.math.ru.nl/~heckman/Coxet...

John Baez
This Week's Finds 6: Coxeter and Dynkin diagrams
   • This Week's Finds 5: Coxeter and Dynk...