Comment by nbe

Someone interested by this subject could also enjoy watching the french film "Dimensions... une promenade mathématique" on spatial geometry:

https://www.youtube.com/watch?v=6cpTEPT5i0A&list=PL3C690048E... (note: this is the first video of a playlist)

https://www.dimensions-math.org/Dim_E.htm

https://en.wikipedia.org/wiki/Dimensions_(animation)