Miscellaneous experiments and remarks on electricity, the air-pump, and the barometer : with the description of an electrometer of a new construction ... / by A. Brook, of Norwich.

  • Brook, Abraham
Date:
1797
Catalogue details

Licence: Public Domain Mark

Credit: Miscellaneous experiments and remarks on electricity, the air-pump, and the barometer : with the description of an electrometer of a new construction ... / by A. Brook, of Norwich. Source: Wellcome Collection.

    100/246 (page 74)
    deftroy four times the length of wire, [fee Remark 16.] In Experiment 32, it plainly appears, that forty-eight feet of furface, charged to fixteen grains, melted three inches of Jieel, or iron wire one eightieth of an inch thick; from which, if the rule holds good, eight hundred and fixty-four fquare feet of coated furface, charged to fixteen grains, fhould melt three inches of iron wire, equal in power again!! the lightning to the brafs one melted at Mr. Gurney’s. And hence, preluming the rule to be good in all cafes, which I hope will be tried, if Mr. Gurney’s wires had all been iron, of the fize of about No. 19, or equal in power to the brafs one, in preferving itfelf, a charge of one thoufand four hundred and forty feet of coated furface* charged to fixteen grains, having been made to pafs through their whole length, which altogether was about forty feet, would have deftroyed them in the fame manner as the lightning. * A furface of about thirty-eight feet fquare.