Minus the stress, adding success.
The Rubik’s Cube is all about symmetry… To make some sense of this bold statement, let us take a closer look at what symmetry really means. When we say that a heart symbol, for example, is symmetric, we are normally referring to its ‘mirror’ symmetry. This means that when viewing the heart through a mirror, what you see is indistinguishable from the heart itself. We can be more precise about this, and describe the operation – ‘the reflection’ – that may be applied to the heart without changing its appearance. Reflecting in the heart’s vertical centre line, i.e. exchanging its left-hand and right-hand sides, leaves it unchanged.
Read the rest here: http://www.thenakedscientists.com/HTML/articles/article/robstanforthcolumn.htm/
www.my-mathematics.com – Minus the stress, adding success