Changes
The term Symmetry arises in a number of contexts, and has several, related meanings<ref> Intial definitions from: http://www.m-w.com/dictionary/symmetry</ref> :
* It may refer to an object which has balanced proportions, and the beauty of form arising from those balanced proportions, notably a face, or an animal, e.g a tiger, as in Blake's the poemby Willaim Blake (1757–1827):
TIGER, tiger, burning bright
In the forests of the night,
