Triumphs and wonders of the 19th century, a volume of original, historic and descriptive writings showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress (1901)
Boyd, James Penny, 1836-1910 · Philadelphia, A. J. Holman & co · leaf 52
o-site way; that is, by making the magnetic fields of force rotate in front ofthe coils or armatures. In the motor, the field of force is mostly establishedby the current directly from the dynamo. This current passes also throughthe armature, which begins to rotate, owing to the force of the field… … THE GOLDEN CANDLESTICK. VI. AND THERE WAS LIGHT. * Mention of the candlestick of pure gold (Ex. xxv. 31) may lead to theinference that the primitive artificial light was that of the candle. Butcandlestick in connection with the lighting of the temple is clearly a mis-nomer. The lamp was the…
Progress · Inventions
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