Plato, Kepler Proud
"This is the first puzzle with all the Platonic solids in a concentric, integrated and solid form, with no voids between them," said Jerry Slocum, a puzzle expert in Beverly Hills, Calif." It is an amazing achievement.
The All Five is the product of more than 40 years of mathematical puzzle making. Now retired and living in Genoa, Nev., Dr. Daniel, 78, had a distinguished career as a physicist working on engine design for General Motors Research Laboratories. His original interest in puzzling began decades ago when he set out to make a series of tetrahedral kites for his son. After he retired the hobby became a full-blown passion that has led him to become a leading designer of puzzles based on Platonic solids." [NYTimes Link]