Observations on a series of electrical experiments / By Dr Hoadly, and Mr Wilson.

  • Benjamin Hoadly
Date:
1756
Catalogue details

Licence: Public Domain Mark

Credit: Observations on a series of electrical experiments / By Dr Hoadly, and Mr Wilson. Source: Wellcome Collection.

    15/80 (page 11)
    [ ” ] ner of realbning is very obvious, viz. at the tapering ends of the bar, which we have obferved to refift the exit of this fluid, through them, lefs than the extended oppofite furface of the bar. To be fatisfied in this point, bring a fecond bar, fliap- ed as the firft was, into contact with the firft, end to end, and it will follow from our way of reafoning, that this fecond bar will, on repeating the experiment, more readily receive what fluid is thrown out of the firft, than the air did before; and confequently, that the fluid, which had before been thrown into the air, will now flow into the fecond bar. And accordingly, when the firft and fecond bar are1 placed on two drinking glafles, fo as to make one hori¬ zontal line, touching one another at their ends; if an excited tube be brought, as before, to the middle of the firft bar, the confequence will be, that the firft will be eledtrified minus and the fecond plus. To prove this; before the excited tube is withdrawn, feparate the two bars by moving the glafs which fup- ports the fecond bar: then withdraw the tube, and you will find that on approaching your knuckle to them, they will each of them give the ufual figns of being eledtrified. But if the experiment be repeated again, without thus feparating them ; and on withdrawing the excited tube they be left for ever fo fliort a time to themfelves, nei¬ ther of them will fhew any marks of being eledtrified on the approach of the knuckle : becaufe they will each