Laboratory Commutators
Commutators were used as simple forward-off-reverse switches for electrical experiments in physics laboratories. There are two well-known historical types :
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Famous quotes containing the word laboratory:
“Today, each artist must undertake to invent himself, a lifelong act of creation that constitutes the essential content of the artist’s work. The meaning of art in our time flows from this function of self-creation. Art is the laboratory for making new men.”
—Harold Rosenberg (1906–1978)