Fig. 11. — Experiment illustrating the lighting of an incandescent lamp in free space by induction from coil below, energized by distant circuit around the room. The loop of wire carrying the lamp is held by Mr. Marion Crawford. (From flash-light photograph.)
Fig. 11. — Experiment illustrating the lighting of an incandescent lamp in free space by induction from coil below, energized by distant circuit around the room. The loop of wire carrying the lamp is held by Mr. Marion Crawford. (From flash-light photograph.)
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