Philosophical essaysauthor, 1766 - 525 |
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Strona 31
... Inches in circumference . 4th . By means of the force of the electrical fluid he could invert the Poles of the magnetic Needle ; give a magnetism and polarity to Needles that had none before , and invert them at pleasure . 5th . He ...
... Inches in circumference . 4th . By means of the force of the electrical fluid he could invert the Poles of the magnetic Needle ; give a magnetism and polarity to Needles that had none before , and invert them at pleasure . 5th . He ...
Strona 45
... Inch , fhould yet ( when fet at liberty and ex- panded by heat , and then mixing with the ter reftrial corpufcles , and the whole reduc'd down to the temper of the grofs fecondary air ) be fuf- ficient to form 645 times that quantity ...
... Inch , fhould yet ( when fet at liberty and ex- panded by heat , and then mixing with the ter reftrial corpufcles , and the whole reduc'd down to the temper of the grofs fecondary air ) be fuf- ficient to form 645 times that quantity ...
Strona 56
... Inches in length be pointed at each end , and those ends turn'd different ways , as in Pl . II . fig . 2. and that wire be fufpended on the point of a Needle , erected for that purpose on the prime Conduc- tor of the Machine , in the ...
... Inches in length be pointed at each end , and those ends turn'd different ways , as in Pl . II . fig . 2. and that wire be fufpended on the point of a Needle , erected for that purpose on the prime Conduc- tor of the Machine , in the ...
Strona 59
... Inches ; and all the internal part of the tube above the quickfilver , is a vacuum , or a space , as void of air , as can be made , perhaps , by art . -I lay a wire from the barrel ( or prime conductor of the machine , ) to the mercury ...
... Inches ; and all the internal part of the tube above the quickfilver , is a vacuum , or a space , as void of air , as can be made , perhaps , by art . -I lay a wire from the barrel ( or prime conductor of the machine , ) to the mercury ...
Strona 62
Richard Lovett. Cad C of the inner glafs was at leaft an inch dif- << tant from the inner furface of the outward one . Each glafs was turned by its own par- ticular wheel , fo that either both , or but one might turn at the fame time ...
Richard Lovett. Cad C of the inner glafs was at leaft an inch dif- << tant from the inner furface of the outward one . Each glafs was turned by its own par- ticular wheel , fo that either both , or but one might turn at the fame time ...
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Popularne fragmenty
Strona 147 - This kite is to be raised when a thunder-gust appears to be coming on, and the person who holds the string must stand within a door or window, or under some cover, so that the silk...
Strona 37 - ... all sensation is excited, and the members of animal bodies move at the command of the will, namely, by the vibrations of this spirit, mutually propagated along the solid filaments of the nerves, from the outward organs of sense to the brain, and from the brain into the muscles.
Strona 37 - And now we might add something concerning a certain most subtle Spirit which pervades and lies hid in all gross bodies: by the force and action of which Spirit the particles of bodies mutually attract one another at near distances, and cohere, if contiguous...
Strona 147 - As soon as any of the thunder-clouds come over the kite the pointed wire will draw the electric fire from them, and the kite, with all the twine, will be electrified, and the loose filaments of the twine will stand out every way and be attracted by an approaching finger.
Strona 395 - ... the nature of things depending on them would be changed. Water and earth composed of old worn particles and fragments of particles would not be of the same nature and texture now with water and earth composed of entire particles in the beginning.
Strona 256 - ... which philosophy seems chiefly to be founded on; such as the density and the resistance of bodies, spaces void of all bodies, and the motion of light and sounds. It remains that, from the same principles, I now demonstrate the frame of the System of the World.
Strona 21 - The qualities of bodies, which admit neither intensification nor remission of degrees, and which are found to belong to all bodies within the reach of our experiments, are to be esteemed the universal qualities of all bodies whatsoever.
Strona 147 - To the top of the upright stick of the cross is to be fixed a very sharp-pointed wire, rising a foot or more above the wood. To the end of the twine next the hand is to be tied a silk ribbon, and where the silk and twine join a key may be fastened.
Strona 139 - I wish we could derive the rest of the phenomena of nature by the same kind of reasoning from mechanical principles; for I am induced by many reasons to suspect that they may all depend upon certain forces by which the particles of bodies, by some causes hitherto unknown, are either mutually impelled towards each other, and cohere in regular figures, or are repelled and recede from each other...
Strona 71 - Body, and to be expanded through a Sphere, whose diameter is above two Feet, and yet to be able to agitate and carry up Leaf Copper, or Leaf Gold, at the distance of above a Foot from the electrick Body...