An Essay on the First Principles of Natural Philosophy: Wherein the Use of Natural Means, Or Second Causes, in the Oeconomy of the Material World, is Demonstrated from Reason, Experiments of Various Kinds, and the Testimony of AntiquityPrinted at the Clarendon Printing-house. Sold by S. Parker, and D. Prince, 1762 - 281 sider |
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æther affert againſt alfo alſo anſwer atmoſphere attraction barometer becauſe beſt bodies cafe caufe cauſe coheſion conclufion confequence confiderable confift courſe degree demonftration denfity deſcribe diſcovery diſtance doctrine eafily earth effect enquiry equal eſtabliſhed experiment faid fame farther fecond feems fenfe ferve fhall fhew fide fire firft firſt fluid folar folid fome force ftate fubject fubtil fuch fufficient fuppofe furface fyftem glaſs gravity greateſt hath heat heavens himſelf impulfe increaſe inftrument itſelf juſt knowlege leffer lefs light matter medium mercury moſt motion muft muſt nature neceffary obferved occafion occult paffage particles philofophy phyfical planets pofitive preffure preſent principle purpoſe quantity queftion raiſed reaſon refiftance reſiſtance ſay ſeems ſenſe ſhall ſhould Sir Ifaac Newton ſmall ſome ſpace ſphere ſtate ſuch ſuppoſed ſyſtem thefe themſelves thermometer theſe things thofe thoſe tion underſtand underſtood univerfal unleſs uſe vacuum veffel velocity wiſdom
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Side 85 - Subfidence happened generally, and as near as could poffibly be expected in fo great a Confufion, according to the Laws of Gravity : That Matter, Body or Bodies, which had the greateft...
Side 45 - From a number of experiments, Newton concludes that there are " Agents in Nature able to make the Particles of Bodies stick together by very strong Attractions. And it is the Business of experimental Philosophy to find them out.
Side 216 - He caufeth the grafs to grow for " the cattle, and herb for the fervice of
Side 27 - ... line : but as their velocity will be apparently unequal in different parts of the line, he will conclude they move in a curve; and by...
Side 55 - And though this increase of density may at great distances be exceeding slow, yet if the elastic force of this medium be exceedingly great it may suffice to impel bodies from the denser parts of the medium toward the rarer with all that power which we call gravity.
Side 9 - APPENDIX (an) to the first part of the Enquiry into the nature of the human soul...
Side 81 - But mould they wear away, or break in pieces, the Nature of Things depending on them, would be changed. Water and Earth, compofed of old worn Particles and Fragments of Particles, would not be of the fame Nature and Texture now, with Water and Earth compofed of entire Particles in the Beginning. And...
Side 157 - In all thofe experiments, where there can be no reafonable doubt about the explanation, matter is found to act upon other matter, for the producing of the effect; and we are able to trace this in fuch a variety of inftances, that unlefs the world is governed by oppofite and contradictory principles, the fame rule rriuft obtain throughout the whole.
Side 241 - I could; and at length perceived, that if my hand were interpofed between the neareft window and the extremity of the optic nerve (a part of which, nearly an inch in length, remained with the eye, and was accidentally pointed toward the window) the light immediately difappeared.
Side 69 - Increafe of denfity may at great diftances be exceeding flow, yet if the elaftick force -of this Medium be exceeding great, it may fuffice to ' impel Bodies from the denfer parts of the Medium towards the rarer , with all that power which we call Gravity.