Deborah R. Fowler
Rubik's Cube and RBD
Posted Jan 3 2021Update Jan 10 2021 with sounds experiments
RBD and Cubes - more info coming soon. See also Rubik's Cube melting.
Also on youtube at https://www.youtube.com/watch?v=nNMgYV7idsA
The puzzle cube is very interesting (and provides a good cube for creating illusion which can be seen here)
Here is an image revealing the inside parts of the cube:
Also on youtube at https://www.youtube.com/watch?v=ZTae_l8deio