The American journal of science and arts . hed investigation, trusting that the data thus afforded willdraw attention to a subject so important and interesting. Thebattery used, was an amalgamated zinc battery, similar to thatrecommended in Sturgeons Annals of Electricity. Two copperplates were prepared for the experiments, and in lieu of being per-forated with numerous holes, were rendered shghtly concavo-con-vex, with a funnel-like tube at its centre. ^ The figure represents a vertical, middlesection of the plate and its funnel. Thechief advantage of this form of plate over thecollander plat
The American journal of science and arts . hed investigation, trusting that the data thus afforded willdraw attention to a subject so important and interesting. Thebattery used, was an amalgamated zinc battery, similar to thatrecommended in Sturgeons Annals of Electricity. Two copperplates were prepared for the experiments, and in lieu of being per-forated with numerous holes, were rendered shghtly concavo-con-vex, with a funnel-like tube at its centre. ^ The figure represents a vertical, middlesection of the plate and its funnel. Thechief advantage of this form of plate over thecollander plate, is, that the sprinkling of acidoccasioned by the bursting of the gas bub-bles, is entirely prevented. The flat perforated plate acts betteras a conductor ; but the difference is so trifling, that I prefer thelatter for the sake of cleanliness. One of the copper plates wasimmersed, and the action of the battery immediately observedby the common test of the spark, produced by rupturing the cir- Vol. XXXVI, No. 1—Jan .-April, 1839. 18. 138 Galvanic Batteries. cuit, completed by a coil surrounding a bar of iron, or rather abundle of iron wires. As soon as the primal action had sub-sided, the plate was removed and immediately primal action was by no means as intense, nor of aslong duration as when the plate was first immersed. It occur-red to me that there was something due in this case to the dry-ness of the plate. To ascertain this point, the immersed platewas withdrawn, and the second plate, which was entirely dry^was immediately substituted ; the primal action was as intense,and of as long continuance as with the first plate when first im-mersed. That any new state of the liquid, induced by repose, isnot essential to the full action of a reimmersed plate, is proved bythis last experiment, viz. the introduction of a dry plate immedi-ately after the withdrawal of an immersed plate. The plate wasthen removed from the liquid and left standing over the battery,whi
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Keywords: ., bo, bookcentury1800, bookpublishernewhavensconverse, bookyear1820
