Memoirs of Benjamin Franklin; Written by Himself. [Vol. 2 of 2] With his Most Interesting Essays, Letters, and Miscellaneous Writings; Familiar, Moral, Political, Economical, and Philosophical, Selected with Care from All His Published Productions, and Comprising Whatever Is Most Entertaining and Valuable to the General Reader

By Benjamin Franklin

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To the same 115

To the same 116

To Miss Stevenson 119

To Lord Kames 120

To the same 121

To the same 128

To John Alleyne

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Text Comparison with Experiments and Observations on Electricity Made at Philadelphia in America

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_ whatever quantity of electrical fire is thrown in at top, an equal quantity goes out of the bottom.
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A bottle so fixt cannot by any means be electrised: the equilibrium is never destroyed: for while the communication between the upper and lower parts of the bottle is continued by the outside wire, the fire only circulates: what is driven out at bottom, is constantly supply'd from the top.
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In this experiment the bottles are totally discharged, or the equilibrium within them restored.
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Then taking the bottle in one hand, and bringing a finger of the other near its mouth, a strong spark came from the water, and the shock was as violent as if the wire had remained in it, which shewed that the force did not lie in the wire.
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The operator, who holds the picture by the upper-end, where the inside of the frame is not gilt, to prevent its falling, feels nothing of the shock, and may touch the face of the picture without danger, which he pretends is a test of his loyalty.
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The gilding being varnish'd over with turpentine varnish, the varnish tho' dry and hard, is burnt by the spark drawn thro' it, and gives a strong smell and visible smoke.
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quantity, so will the cork be repelled again: And so may the experiment be repeated as long as there is any charge in the bottles.
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more speedily and easily deposite their water, having but little electrical fire to repel and keep the particles separate.
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In the same view I write, and send you this additional paper.
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If a piece of common matter be supposed intirely free from electrical matter, and a single particle of the latter be brought nigh, 'twill be attracted and enter the body, and take place in the center, or where the attraction is every way equal.
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8, be electrified, or have an electrical atmosphere communicated to it, and we consider every side as a base on which the particles rest and by which they are attracted, one may see, by imagining a line from A to F, and another from E to G, that the portion of the atmosphere included in F, A, E, G,.
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from the stroke of lightning, by directing us to fix on the highest parts of those edifices, upright rods of iron made sharp as a needle, and gilt to prevent rusting, and from the foot of those rods a wire down the outside of the building into the ground, or down round one of the shrouds of a ship, and down her side till it reaches the water? Would not these pointed rods probably draw the electrical fire silently out of a cloud before it came nigh enough to strike, and thereby secure us from that most sudden and terrible mischief? 21.
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The manner is this: Take leaf gold, leaf silver, or leaf gilt copper, commonly called leaf brass or _Dutch_ gold: cut off from the leaf long narrow strips the breadth of a straw.
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Perhaps this may be the reason; when there is not a perfect continuity in the circle, the.
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When the upper plate is electrified, the leaf is attracted and raised towards it, and would fly to that plate were it not for its own points.
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So if a tube lined with a [11]non-electric, be rubb'd, little or no fire is obtained from it.
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A Treatise of Comets, containing, 1.
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stitch'd, or 2s.