Philosophical essaysauthor, 1766 - 525 |
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Strona 16
... these noble Metals to that degree , that to the great damage of ' the Owner , a good part of them both is loft , which by a gentle calcination , and the ad- ' dition of fome fixing Powders , might be entirely preferv'd . Hence ...
... these noble Metals to that degree , that to the great damage of ' the Owner , a good part of them both is loft , which by a gentle calcination , and the ad- ' dition of fome fixing Powders , might be entirely preferv'd . Hence ...
Strona 35
... these are the things that GOVERN NATURE principally ; and without which you cannot make any true Analysis , and In- dication of the proceedings of Nature . The Spirits , or Pneumaticals , that are in all tan- gible bodies , are scarce ...
... these are the things that GOVERN NATURE principally ; and without which you cannot make any true Analysis , and In- dication of the proceedings of Nature . The Spirits , or Pneumaticals , that are in all tan- gible bodies , are scarce ...
Strona 37
... these are things that cannot be explain'd in few words , nor are we fur- nifh'd with that fufficiency of experiments ⚫ which is required to an accurate determina- ⚫tion and demonftration of the laws , by which this electric and ...
... these are things that cannot be explain'd in few words , nor are we fur- nifh'd with that fufficiency of experiments ⚫ which is required to an accurate determina- ⚫tion and demonftration of the laws , by which this electric and ...
Strona 39
... these manifeft proofs , that the pores of bodies are replete with a fubtile elaftic fluid , fimilar to the electrical fluid ; and like that too , appears in form of fire ? and also that the propensity to preferve an equilibrium among ...
... these manifeft proofs , that the pores of bodies are replete with a fubtile elaftic fluid , fimilar to the electrical fluid ; and like that too , appears in form of fire ? and also that the propensity to preferve an equilibrium among ...
Strona 43
... these may be , nothing can illuftrate and confirm any thing much more clearly than this kind of reafoning does , that Sir Ifaac's pofition was just and true con- cerning his Æther in the pores of grofs bodies , and confequently well ...
... these may be , nothing can illuftrate and confirm any thing much more clearly than this kind of reafoning does , that Sir Ifaac's pofition was just and true con- cerning his Æther in the pores of grofs bodies , and confequently well ...
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Kluczowe wyrazy i wyrażenia
Æther affert againſt Agent alfo almoſt alſo appears Atmoſphere Attraction attrition becauſe cafe caufe cauſe common Air confequently confiderable degree demonftrated diſcover'd diſcovery diſtance ditto eafily Earth effects elaftic elaſtic electrical Fluid electrifed eſcape exifts exiſtence Experiments fame feems feveral fhall fhew fhould fide filk fince Fire firft firſt folar folid fome foon force fubtile Medium fuch fufficient fuppofe furface glafs glaſs Gravity greateſt grofs Bodies hath Heat himſelf illuftrate Inches increaſe inftance Inftrument interfect itſelf lefs light Longitude magnetic Pole matter means Meridian moft moſt motion muft muſt natural neceffary Needle obferved paffing particles Perfon Phænomena Phænomenon Phial Philofophy phyfical Pneuma poffibly pofition pores prefent preffure Principle prove Rays reafon refiftance ſhall Sir Ifaac Newton ſmall ſpace ſtate thefe themſelves theſe thing thofe thoſe thro tion tricity Tube univerfal uſe vacuum Variation Weft wire Worceſter Worcestershire
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...