Expériences et observations sur l'électricité faites à Philadelphie en Amérique

By Benjamin Franklin

Page 121

découvris aucune différence.

Je plaçai l'aiguille d'une boussole sur la pointe d'une longue épingle;
& la tenant dans l'atmosphère du premier conducteur à la distance
d'environ trois pouces, je trouvai qu'elle pirouettoit avec une grande
rapidité, comme les aîles d'un tourne-broche.

Je suspendis avec une soye une balle de liége environ de la grosseur
d'un pois; je lui présentai de l'ambre frotté, de la cire à cacheter, du
soufre, elle fut fortement repoussée par chacun de ces corps; ensuite
j'essayai du verre & de la porcelaine frottée, & je trouvai que chacun
l'attiroit jusqu'à ce qu'elle s'électrisât une seconde fois, & qu'alors
elle fut repoussée comme la première fois; & tandis que cette balle
étoit ainsi repoussée par le verre ou la porcelaine frottée, elle étoit
attirée par l'un des trois, autres corps aussi frottés. Alors
j'électrisai la balle avec le fil-d'archal d'une bouteille chargée, & je
lui présentai du verre frotté (le bouchon d'un flacon) & une tasse de
porcelaine; elle en fut repoussée aussi fortement que par le
fil-d'archal. Mais quand je lui présentai un des autres corps
électriques frottés, elle fut fortement attirée; & quand je l'électrisai
par l'un d'eux jusqu'à ce qu'elle fût repoussée, elle fut attirée par le
fil de la bouteille, mais repoussée par sa doublûre extérieure.

Ces expériences me surprirent, & me portèrent à en inférer les paradoxes
suivants.

1°. Si un globe de verre est placé à l'un des bouts du premier
conducteur, & un globe de soufre à l'autre; les deux globes étant
également en bon état & dans un mouvement égal, on ne pourra tirer
aucune étincelle du conducteur; mais un des globes tirera du conducteur
aussi vîte que l'autre y fournira.

2°. Si une bouteille est suspenduë au conducteur avec une chaîne de son
envelope à la table, & que l'on ne se serve que d'un des globes à la
fois, vingt tours de rouë, par exemple, la chargeront, après quoi autant
de tours de l'autre rouë la déchargeront, & autant la rechargeront
encore.

3°. Les deux globes étant en mouvement, chacun ayant un conducteur
particulier avec une fiole suspenduë à l'un d'eux, & la chaîne de
celle-ci attachée à l'autre, la fiole se chargera, l'un des globes
chargeant positivement, & l'autre négativement.

4°. La bouteille étant chargée de cette sorte, suspendez-la de la même
manière à l'autre conducteur; faites tourner les deux rouës, & le même
nombre de tours qui avoit chargé la bouteille la déchargera, & le même
nombre encore la rechargera.

5°. Quand chaque globe communique avec le même premier conducteur,
duquel il pend une chaîne jusques sur la table, l'un de ces globes (mais
je ne puis

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Text Comparison with The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 3 [of 3]

Page 4
Franklin) to "The votes and proceedings of the freeholders, and other inhabitants of the town of Boston, in town-meeting assembled according to law (published by order of the town), &c.
Page 42
_ B.
Page 46
And that his majesty's subjects, the merchants and insurers in England, as well as the merchants here and elsewhere, did during the last, and will during the present war, greatly suffer in their property, trade, and commerce, by the _enemy's privateers_ on this coast, and at our capes, unless some method be fallen on to prevent it.
Page 90
The writer would, if he could, hide from himself as well as from the public, the horror arising from such a proposal, by couching it in general terms: it is no wonder he thought it a "subject not fit for discussion" in his letter; though he recommends it as "a point that should be the constant object of the minister's attention!" But if Canada is restored on this principle, will not Britain be guilty of all the blood to be shed, all the murders to be committed, in order to check this dreaded growth of our own people? Will not this be telling the French in plain terms, that the horrid barbarities they perpetrate with their Indians on our colonists are agreeable to us; and that they need not apprehend the resentment of a government, with whose views they so happily concur? Will not the colonies view it in this light? Will they have reason to consider themselves any longer as subjects and children, when they find their cruel enemies hallooed upon them by the country from whence they sprung; the government that owes them protection, as it requires their obedience? Is not this the most likely means of driving them into the arms of the French, who can invite them by an offer of that security, their own government chuses not to afford them? I would not be thought to insinuate, that the remarker wants humanity.
Page 98
[31] Douglass.
Page 163
It might have been well if the matter had then passed without notice; but a governor having written home an angry and aggravating letter upon this conduct in the assembly of his province, the outed [proposer[76]] of the stamp act and his adherents (then in the opposition) raised such a clamour against America, as being in rebellion, and against those who had been for the repeal of the stamp act, as having thereby been encouragers of this supposed rebellion; that it was thought necessary to enforce the quartering act by another act of parliament, taking away from the province of New York (which had been the most explicit in its refusal) all the powers of legislation, till it should have complied with that act.
Page 173
V.
Page 185
A man may still, as before the act, send his letter by a servant, a special messenger, or a friend, if he thinks it cheaper and safer.
Page 203
Another reason, why I think they would not be satisfied with such a partial repeal, is that their agreements, not to import till the repeal takes place, include the whole; which shows, that they object to the whole; and those agreements will continue binding on them, if the whole is not repealed.
Page 267
But they are still ignorant.
Page 286
But as few here have the advantage of good books, for want of which, good conversation is still more scarce, it would, doubtless, have been very acceptable to your readers, if, instead of an old out-of-date article from Muscovy or Hungary, you had entertained them with some well chosen extract from a good author.
Page 310
" 'Away then, with your expensive follies, and you will not then have so much cause to complain of hard times, heavy taxes, and chargeable families; for "Women and wine, game and deceit, Make the wealth small, and the want great.
Page 320
If it should be said, that people are apt to be obstinately attached to old customs, and that it will be difficult to induce them to rise.
Page 325
10, 1779.
Page 326
This put me in mind what good things I might have bought with the rest of the money; and they laughed at me so much for my folly, that I cried with vexation; and the reflection gave me more chagrin, than the _whistle_ gave me pleasure.
Page 334
To this end, it is, in the first place, necessary, to be careful in preserving health, by due exercise, and great temperance; for, in sickness, the imagination is disturbed; and disagreeable, sometimes terrible, ideas are apt to present themselves.
Page 335
But we may recollect, that sometimes, on waking in the night, we have, if warmly covered, found it difficult to get asleep again.
Page 379
16.
Page 384
_ _Bodies_, electrified negatively, repel each other, ii.
Page 419
Franklin's bequest to, 164.