SHAWORDS

Im up and down and round about, — Circles

HomeCirclesQuote
"Im up and down and round about, Yet all the world cant find me out; Though hundreds have employed their leisure, They never yet could find my measure."
Circles
Circles
Circles
author19 quotes

A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. The distance between any point of the circle and the centre is called the radius. The length of a line segment connecting two points on the circle and passing through the centre is called the diameter. A circle bounds a region of the plane called a disc.

More by Circles

View all →
Quote
"Circularity is a powerful concept, the idea of a closed loop even more so. In circular motion there is magic, just as there is in electro-magnetism. But it only manifests itself when it is, like (shall we say for the moment, rather than a reflection of) its neighboring head, truly three-dimensional. ...We can induce current into the one [coil] from the other by means totally unintelligible to us, but to which we give the name . But if I place one coil with its axis at right-angles to that of the other, there is no induced voltage. It is as if the two circuits lived in different worlds... What is the meaning of perspective in a four-dimensional space?"
CirclesCircles