I have had a fondness for curves as far back as I can remember (Yikes! What's that white goo?!). A curve can be defined thus :
In topology, a curve is a one-dimensional continuum.
In analytic geometry, a curve is continuous map from a one-dimensional space to an n-dimensional space. Loosely speaking, the word "curve" is often used to mean the function graph of a two- or three-dimensional curve.
There is nothing more exhilarating than matching a naturally occurring phenomenom with a one-line mathematical function. And, dear reader
And finally, the curve that needs no introduction :