Merchant, F. W. (Francis Walter), 1855-1937, Fessenden, Cortez, b. 1852 · Toronto : Copp, Clark · leaf 330
llustrates in a feeble way theprinciple of the arc light. When two carbon rods, or pencils,are connected by conductors withthe poles of a sufficiently powerfulbattery or dynamo, touched to-gether, and then separated a shortdistance, the current continues toflow across the gap, developingintense… … APPENDIX. MANUAL TRAINING EXERCISES IN THE CONSTRUCTION OFAPPARATUS REQUIRED IN THE TEXT. 1. Scale and Vernier. The baseboard is made of two strips, A and B,separated by means of a ^V strip inserted at each end,as at C. Battens D are nailed across the under-side ateach end.
Physics
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