Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 418
Stroumho—Holtz Electrical Machine. 359 … (Fig. 4). The electric current + Eyet continues upon the face r r ofthe plate, where it will be observed.1st, That the ball s receives neg-ative electricity. 2d. That the face r r, of the plate,having lost the negative electricity,with which it returns, after another half revolution, to its first…
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