PK Mukherjee

Symmetry commonly means harmony or balance. It also signifies beauty (regularity) and unity. That has been the notion of symmetry right from the outset; nature loves symmetry. If we observe objects of nature like flowers, butterflies, etc., we shall always notice a kind of symmetry in them. From an engineering and architectural point of view, symmetry can also be seen in the design of buildings. It manifests in myriad man-made art, drawings and patterns.

It is easy to understand what visual or geometrical symmetry is. Think of a circle, a square, a triangle or a rectangle. Now, if you hold any of these forms down the centre, if each side is equal in size and shape to the opposite side, refer to it as bilateral symmetry. A candle or a pencil held vertically with its tip down is symmetric about a vertical axis because it…read more on NOPR