Philosophical essaysauthor, 1766 - 525 Seiten |
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Seite iii
... real Fire . Since that Time Electricity hath been the principal Object both of my Study and Practice ; and tho ' in many respects unqualified for an Author , yet have I from a pure ь regard regard for Truth , and a love of my fellow THE.
... real Fire . Since that Time Electricity hath been the principal Object both of my Study and Practice ; and tho ' in many respects unqualified for an Author , yet have I from a pure ь regard regard for Truth , and a love of my fellow THE.
Seite 9
... pure 2- ⚫therial Matter we know but little of ; what Authors have advanced concerning it being chiefly conjectural . We have no way of ex- amining it apart , or feparating it from the • other heterogeneous Matters it is mixed with ...
... pure 2- ⚫therial Matter we know but little of ; what Authors have advanced concerning it being chiefly conjectural . We have no way of ex- amining it apart , or feparating it from the • other heterogeneous Matters it is mixed with ...
Seite 23
... pure Air is universal , not only in all open spaces , but in the minuteft vacuities of the most com- pact Bodies by reafon of its being compofed of almost infinitely finer Particles than thofe of grofs Matter , which renders it capable ...
... pure Air is universal , not only in all open spaces , but in the minuteft vacuities of the most com- pact Bodies by reafon of its being compofed of almost infinitely finer Particles than thofe of grofs Matter , which renders it capable ...
Seite 24
... pure Æther , Fire , or Spirit , in proportion to the quantity of Salts , Vapours , and heterogeneous Particles contain'd therein . " Siris , Sect . 150 . 53 . 53. It is manifest therefore , that common Air , ( 24 ) PART 1 .
... pure Æther , Fire , or Spirit , in proportion to the quantity of Salts , Vapours , and heterogeneous Particles contain'd therein . " Siris , Sect . 150 . 53 . 53. It is manifest therefore , that common Air , ( 24 ) PART 1 .
Seite 25
... pure air , and common air a lefs pure æther ; confe quently they repel each other . 54. That fuch a number of Articles should be fix'd on as First Principles , whereon to esta- blish the Theory of a Syftem of Philosophy , I * It is not ...
... pure air , and common air a lefs pure æther ; confe quently they repel each other . 54. That fuch a number of Articles should be fix'd on as First Principles , whereon to esta- blish the Theory of a Syftem of Philosophy , I * It is not ...
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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
Beliebte Passagen
Seite 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...
Seite 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.
Seite 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...
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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.
Seite 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...
Seite 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...