Brush (electric)
A brush is a device which conducts current between stationary wires and moving parts, most commonly in a rotating shaft. Typical applications include electric motors, alternators and electric generators.
Read more about Brush (electric): Etymology, Liquid Metal Brushes
Famous quotes containing the word brush:
“Instead of feeling a poverty when we encounter a great man, let us treat the new comer like a travelling geologist, who passes through our estate, and shows us good slate, or limestone, or anthracite, in our brush pasture.”
—Ralph Waldo Emerson (1803–1882)