The Elements of Natural Or Experimental Philosophy, Tom 1Hansard, 1803 |
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Strona 200
... OSCILLATION , AND CENTRE OF PERCUSSION . TH HE attentive reader muft undoubtedly have remarked , that though in the preceding chapter much has been faid with respect to the length of the pendulum , yet no mention has been made of the ...
... OSCILLATION , AND CENTRE OF PERCUSSION . TH HE attentive reader muft undoubtedly have remarked , that though in the preceding chapter much has been faid with respect to the length of the pendulum , yet no mention has been made of the ...
Strona 208
... oscillation . This body may be conceived to con- fift of an indefinite number of extremely fmall parts or weights . Let W be one of those fmall weights ; join WC and WG , and from W drop WF perpendicular to CO . Then the product of W ...
... oscillation . This body may be conceived to con- fift of an indefinite number of extremely fmall parts or weights . Let W be one of those fmall weights ; join WC and WG , and from W drop WF perpendicular to CO . Then the product of W ...
Strona 209
... oscillation can only be found out by means of the above - defcribed me- chanical method . In order to find the fum of the weights , & c . you must confider an indefinitely fmall part , or increment , or fluxion , of the figure , as ...
... oscillation can only be found out by means of the above - defcribed me- chanical method . In order to find the fum of the weights , & c . you must confider an indefinitely fmall part , or increment , or fluxion , of the figure , as ...
Strona 212
... oscillation is at C , viz . lower than G by the quantity B GI 30G • Example 3. Let the position be exactly as in the pre- ceding example , excepting only that the axis of fufpenfion or of vibration , which was then perpendicular , be ...
... oscillation is at C , viz . lower than G by the quantity B GI 30G • Example 3. Let the position be exactly as in the pre- ceding example , excepting only that the axis of fufpenfion or of vibration , which was then perpendicular , be ...
Strona 215
... oscillation V from the centre of gravity G , and of courfe OV = d + 2a2 5d • Should the point of fufpenfion be fituated close to the fur- face , as at D ; then the distance between the centres of fufpenfion and of gravity would become ...
... oscillation V from the centre of gravity G , and of courfe OV = d + 2a2 5d • Should the point of fufpenfion be fituated close to the fur- face , as at D ; then the distance between the centres of fufpenfion and of gravity would become ...
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abfolute againſt alfo alſo angle arch arifes axis bafe becauſe body cafe cauſe centre of gravity centre of ofcillation centrifugal force centripetal force Chap circular common centre confequence confifts courſe cycloidal defcend defcribed diameter direction diſtance divided eafily earth elaftic equal Eucl expreffed faid fame thing fcrew fecond feet fhall fhewn fhews fide filk fimilar fimple fince fingle firſt fituation fmall fome force of gravity fpace fquare root friction ftraight ftring ftroke fubject fuch fufficient fuppofe furface impelled impulfe inches inclined plane increaſe infinite inftance itſelf laft lefs length lever likewife machine meaſure momentum motion muft multiplied muſt obferved paffed parallel pendulum perpendicular philofophical Plate pounds prefent properties propofition proportion pulley purpoſe quantity of matter raiſe reaſoning refiftance refpect reft repreſented ſhall ſmall ſpace ſquare thofe thoſe tion triangle uſe velocity vibration weight wheel whilft whofe
Popularne fragmenty
Strona xiv - In experimental philosophy we are to look upon propositions collected by general induction from phenomena as accurately or very nearly true, notwithstanding any contrary hypotheses that may be imagined, till such time as other phenomena occur, by which they may either be made more accurate, or liable to exceptions.
Strona xiv - 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 76 - The change of motion is proportional to the motive force impressed; and is made in the direction of the right line in which that force is impressed.
Strona 129 - In any continued geometrical progression, the product of the two extremes is equal to the product of any two means that are equally distant from them, or equal to the square of the middle term when there is an uneven number of terms.
Strona 210 - After the moving force m has been intercepted at the end of the given space or time, there will be no force operating on any part of the system...
Strona 251 - But in the ufual way of practice, the axles are bent downward at their ends, which brings the fides of the wheels next the ground nearer to one another than their oppofite or higher fides are : and this not only makes the wheels to drag fidewife as they go along, and gives the load a much greater power of crushing them than when they are parallel to each other, but alfo...
Strona 205 - ... as a ftandard, to which all the others are referred. This ftandard weight in the fubfequent experiments is ^ of an ounce, and is reprefented by the letter m. The inertia of the wheels being therefore = 2f ounces, will be denoted by 1 1 m.
Strona 207 - ... the box A is on a level with o. The defcent of A is terminated when the bottom of the box ftrikes the ftage, which may be fixed at different diftances from the point o, fo that by altering the pofition of the ftage, the fpace defcribed from quiefcence may be of any given magnitude lefs than 64 inches.
Strona 205 - ... m ; fo that when the weights A and B, each being 25 m, are balanced in the manner above reprefented, their whole mafs will be 50?^, which being added to the inertia of the wheels urn, the fum will be dim.
Strona 98 - ... the fquares of their periodical times are as the cubes of their diftances...