Atkinson, Philip. [from old catalog] · New York, The Century co. · leaf 190
ebrass rod, lift-ing it, and sep-arating the car-bons about oneeighth of aninch, as shown.The carbonsbecome hot atthe points, buttheir electricresistance isnot sufficientto make them hot enough to produce light till separatedcount of the greater resistance of the air, the light burstsout in the air…
Electricity
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