ifty cel]s give elec- served from Dover, a distance of three miles, they throw a the head, ¢, moves to the right, stops the fly, 0’, and releases ticity of sufficient tension to produce the light; and if more very distinct Shadow from objects on the pier. _0, which, accordingly, revolves, and the… … Foucault’s form of regulator, Fig. 1, has ing 4,185 annually. The machines are started Fig. 2—MAGNETO-ELECTRIC LIGHT MACHINE. two systems of wheel work, one for bringing 10 minutes before the timeof illumination, so the carbons nearer together, and the other for moving them that the currents may be…
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