The London, Edinburgh and Dublin philosophical magazine and journal of science . The preliminary experiment showed that the resistance tothe twist offered by the mercury in the pool was not negli-gibly small when the thick brass wire was dipped into themercury. The resistance was especially noticeable when thebrass wire carried a narrow rectangular piece for the purposeof damping. Hence, in order to efface the resistance, a non-magnetic nickel-steel wire 05 mm. thick and 5 cms. long wassoldered to the lower end of the brass wire and dipped intothe mercury pool. By this the damping of* the tors
The London, Edinburgh and Dublin philosophical magazine and journal of science . The preliminary experiment showed that the resistance tothe twist offered by the mercury in the pool was not negli-gibly small when the thick brass wire was dipped into themercury. The resistance was especially noticeable when thebrass wire carried a narrow rectangular piece for the purposeof damping. Hence, in order to efface the resistance, a non-magnetic nickel-steel wire 05 mm. thick and 5 cms. long wassoldered to the lower end of the brass wire and dipped intothe mercury pool. By this the damping of* the torsional Wiedemann Effect m Ferromagnetic Substances. 653 oscillation was rendered very small, especially in the casewhen a weight was attached. To stop the oscillation a brasswire was fixed horizontally to the vertical wire and bentdownward, as shown in the annexed figure. Just below it asmall mercury cup was placed ; this cup was connected witha large one by a caoutchouc tube. This large cup was placednear the observers and could be raised or lowered by meanso£ a screw adjust
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Keywords: ., bookcentury1800, bookdecade1840, bookidlondon, booksubjectscience
