Philosophical essaysauthor, 1766 - 525 |
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Strona viii
... tion , fhew most evident Effects of Force and Activity , and frequently retain them even till the next Day . As to the following Effay , it is humbly propos'd only as a rough , artless Draught , in order to excite fome masterly Hand to ...
... tion , fhew most evident Effects of Force and Activity , and frequently retain them even till the next Day . As to the following Effay , it is humbly propos'd only as a rough , artless Draught , in order to excite fome masterly Hand to ...
Strona xxv
... . VII . Mr. Haukefbee's Experiments con- tinued , with others , tending to point out the Same agent , by means of its exceffive rapid mo- tion towards the part most rarefied , 86 Chap . 102 Chap . VIII . Of the fource from whence.
... . VII . Mr. Haukefbee's Experiments con- tinued , with others , tending to point out the Same agent , by means of its exceffive rapid mo- tion towards the part most rarefied , 86 Chap . 102 Chap . VIII . Of the fource from whence.
Strona 3
... tion with those that are now made ufe of , - fome in the common Way , others he exhaufted of their Air , and then whirl'd then on their Axes , and exhibited the appearance of Fire in various forms , and in fome , in very great plenty ...
... tion with those that are now made ufe of , - fome in the common Way , others he exhaufted of their Air , and then whirl'd then on their Axes , and exhibited the appearance of Fire in various forms , and in fome , in very great plenty ...
Strona 5
... tion , a great Number of various Experiments were every where made , particularly after it was discover'd fo plainly to be Fire , as to kindle up many particular Bodies into an actual Flame . 17. But the greateft Improvement of all ...
... tion , a great Number of various Experiments were every where made , particularly after it was discover'd fo plainly to be Fire , as to kindle up many particular Bodies into an actual Flame . 17. But the greateft Improvement of all ...
Strona 14
... tion the distillation of these Salts , with Sand , Bole , Brick - duft , Potters , and Tobac- co - pipe Clay , performed with the intenseft • Heat ! Do not the Chymifts every Year con- vert , by this method , many thousand pounds weight ...
... tion the distillation of these Salts , with Sand , Bole , Brick - duft , Potters , and Tobac- co - pipe Clay , performed with the intenseft • Heat ! Do not the Chymifts every Year con- vert , by this method , many thousand pounds weight ...
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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
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...