A Book of Gems Choice selections from the writings of Benjamin Franklin

By Benjamin Franklin

Page 15


Reason, Providence, and the Spirit of God,
Teach us to Obey God 150
Receiving Sinners without Baptism 175
Reckless Twaddle 78
Recognition of, by Sects 301
Reflections for Dancers 112
Reformation a Success 96
Reign of a Thousand Years 263
Religion and Politics 336
Resurrection—Adamic Sin 325
Resurrection of Lazarus 89
Revelation of the Mystery 372
Riches of Faith

Last Page Next Page

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

Page 5
The fire now passes from the wire to you, and from him into the bottom of the bottle.
Page 6
Page 7
By sifting fine sand on it; this does it gradually.
Page 13
But suspend two or more phials on the prime conductor, one hanging to the tail of the other; and a wire from the last to the floor, an equal number of turns of the wheel shall charge them all equally, and every one as much as one alone would have been.
Page 14
We judged then, that it must either be lost in decanting, or.
Page 24
If they are driven by winds against mountains, those mountains being less electrified attract them, and on contact take away their electrical fire (and being cold, the common fire also;) hence the particles close towards the mountains and towards each other.
Page 26
It is a common thing to see clouds at different heights passing different ways, which shews different currents of air, one under the other.
Page 28
Page 29
TO Mr.
Page 30
attract and retain it strongest, and contain the greatest quantity.
Page 31
'Tis supposed they form triangles, whose sides shorten as their number increases; 'till the common matter has drawn in so many, that its whole power of compressing those triangles by attraction, is equal to their whole power of expanding themselves by repulsion; and then will such piece of matter receive no more.
Page 34
To understand this, we may consider, that if a person standing on the floor would draw off the electrical atmosphere from an electrified body, an iron crow and a blunt knitting kneedle held alternately in his hand and presented for that purpose, do not draw with different forces in proportion to their different masses.
Page 38
But having no paint at hand, I pasted a narrow strip of paper over it; and when dry, sent the flash through the gilding; by which the paper was torn off from end to end, with such force, that it was broke in several places, and in others brought away part of the grain of the Turky-leather in which it was bound; and convinced me, that had it been painted, the paint would have been stript off in the same manner with that on the wainscot at _Stretham_.
Page 40
10 the upper corner.
Page 42
Now let the globe be turned, and you see a spark strike from the bullet to the wire of the bottle, and the same instant you see and feel an exactly equal spark striking from the coating on your knuckle, and so on spark for spark.
Page 43
Nor have we any way of moving the electrical fluid in glass, but one; that is, by covering part of the two surfaces of thin glass with non-electrics, and then throwing an additional quantity of this fluid on one surface, which spreading in the non-electric, and being bound by it to that surface, acts by its repelling force on the particles of the electrical fluid contained in the other surface, and drives them out of the glass into the non-electric on that side, from whence they are discharged, and then those added on the charged side can enter.
Page 44
more of this electrical fluid than other common matter: That when it is blown, as it cools, and the particles of common fire leave it, its pores become a vacuum: That the component parts of glass are extremely small and fine, I guess from its never showing a rough face when it breaks, but always a polish; and from the smallness of its particles I suppose the pores between them must be exceeding small, which is the reason that Aqua-fortis, nor any other menstruum we have, can enter to separate them and dissolve the substance; nor is any fluid we know of, fine enough to enter, except common fire, and the electrical fluid.
Page 47
Page 48
I placed a glass plate under my cushion, to cut off the communication between the cushion and floor; then brought a small chain from the cushion into a glass of oil of turpentine, and carried another chain from the oil of turpentine to the floor, taking care that the chain from the cushion to the glass touch'd no part of the frame of the machine.
Page 51