Tag Archives: dayan zhanchi

Universal Property of Kernel Question

Recently, the Dayan Zhanchi brand Rubik’s Cube has been a hot sale on my site. Parents looking to buy an educational toy may want to check it out. Smoothness when turning is very important for Rubik’s Cube, and the Dayan … Continue reading

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Best Rubik’s Cube (Cheap and Good) — The Dayan Zhanchi?

The Rubik’s Cube is a famous puzzle, that is related to Math and Group Theory. (See this free introduction by MIT on the The Mathematics of the Rubik’s Cube) Recently, I am thinking of buying a new Rubik’s Cube, and searched … Continue reading

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