An Essay to Shew the Cause of Electricity; and Why Some Things are Non-Electricable.: In Which Is Also Consider'd Its Influence in the Blasts on Human Bodies, in the Blights on Trees, in the Damps in Mines; And as It May Affect the Sensitive Plant, &c.Freke, John
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An Essay to Shew the Cause of Electricity; and Why Some Things are Non-Electricable.: In Which Is Also Consider'd Its Influence in the Blasts on Human Bodies, in the Blights on Trees, in the Damps in Mines; And as It May Affect the Sensitive Plant, &c.
Freke, John
Electricity -- Early works to 1850; Martin, Benjamin, 1705-1782. Essay on electricity
But it may be asked, What causes these attractive and repulsive
Faculties? I answer, The Attraction of fiery Particles one to another:
For, if all Nature be agitated by this Fire, all Things have it in the
common Proportion, as it was intended they should stand in Nature. And
therefore, as I have endeavoured to shew, that Electricity is occasioned
by crouding on any thing more of this Fire and Force than naturally
belonged to it; and as the Flame of a Candle must of Necessity send out
of it at its Point an Overplus (without which there could be no
Succession or free Motion in its Flame); so, for the same Reason, the
Redundancy of what is crouded on may be consider’d as spending itself at
each Extremity, that it may thereby reach itself out to any thing, and
invite it to it; as I have shewn the Flame descending down the Smoak of
a Candle just blown out to kindle it again, will do.
As therefore there is a trite Proverb, passing universally, that _where
there is Smoak there must be some Fire_, I will endeavour to prove, That
no Heat, either from Animals, or from any other Cause, can be produced
but from this supposed Fire I have been speaking of. For, now, suppose
you see the Flame of a Candle circumscribed and limited in its Shape and
Size, which it has according to its Snuff; this Thought may serve to
illustrate what I mean by the _Capsula_, which I have supposed passing
over the Surface of every Body when it is electrify’d, and seems to be a
lambent Flame, being more or less thick, as from the _Apparatus_ more or
less Fire has been collected and rubbed together on it, either from the
Friction of a glass Tube, or the Globe: Now, as what I am about to shew,
is, why this attractive Faculty is found in this Experiment, I would
offer to your Consideration, Whether, when common People see the Flame
of a Candle circumscrib’d, they think of any Fire which may proceed
further than in the Flame of that Candle? Yet every body, on
Recollection, knows, that the Flame will heat Parts at a great Distance
to such a Degree, as, at length, to kindle them into a Fire. And tho’,
till you touch the Flame, your Finger is not immediately burn’d, yet
there are shewn to be Emanations of Fire at a Distance from its burning
Quality. So here I beg Leave to consider the same Property in this Fire
occasion’d by Electricity. For, till you touch this _Capsula_ of lambent
Flame (which is commonly to be met with near a Quarter of to Half an
Inch short of the Body to be electrify’d) no Effect is perceiv’d,
because you have not enter’d into the _Vortex_ of this Whirlpool of
Fire: Yet you may suppose that it sends out an Emanation of its Fire
beyond it, as other Flames do; which, when it has first, by its Heat,
(which I take to be Part of it) prepared small Things to be electrify’d,
then they are more easily lick’d into the whole Power, and so become
electrify’d. The Reason therefore, why the Gold, and other light
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