For more, see the 1958 paper by L. S. Penrose: http://vxheavens.com/lib/mlp01.html
or the shorter one authored with his son Roger Penrose http://www.aeiveos.com/~bradbury/Authors/Computing/Penrose-L...
Seems like a fun shop project!
For more, see the 1958 paper by L. S. Penrose: http://vxheavens.com/lib/mlp01.html
or the shorter one authored with his son Roger Penrose http://www.aeiveos.com/~bradbury/Authors/Computing/Penrose-L...
Seems like a fun shop project!