Everything Is A Spring

When a spring is subjected to pressure (or tension) the spring is strained, and work is done, this work being stored up as potential energy of deformation of the spring. The energy remains in the spring so long as the pressure is maintained, and on relieving the pressure work is done by the spring.

Elastic material, a spring, is applied in very various forms for different purposes. The simplest form is a piece of elaitic metal wire, rolled on a mandrel, forming a continuous single cylindrical coil of any length needed. Clock and watch springs are flat coils of thin bands of steel. The balance-spring of watches is of fine wire often thinner than hair. Coach-springs are formed of a series of curved narrow plates of steel of different sizes, placed one over another, the largest at the bottom, and the others in regular succession according to size—the whole held together with nuts and screws. These are some of the commonest forms, but very many others are in use.

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