The Elements of Natural Or Experimental Philosophy, Tom 1Hansard, 1803 |
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Strona 25
... draw two indefinite lines EF , and CD , parallel to each other . In one of thofe lines , as EF , take a point L , and from this point draw ftraight lines to any parts of the line BD , every one of which lines will evidently cut the ...
... draw two indefinite lines EF , and CD , parallel to each other . In one of thofe lines , as EF , take a point L , and from this point draw ftraight lines to any parts of the line BD , every one of which lines will evidently cut the ...
Strona 27
... draw parallel lines upon a glafs plate , as also upon filver , fo near one another , that 10000 of them occupy the space of one inch . - Thofe lines can be feen only by the affiftance of a very good micro- scope . Another workman has drawn ...
... draw parallel lines upon a glafs plate , as also upon filver , fo near one another , that 10000 of them occupy the space of one inch . - Thofe lines can be feen only by the affiftance of a very good micro- scope . Another workman has drawn ...
Strona 42
... that fecondary power . Thus a ftone which is thrown horizontally would proceed horizontally in a ftraight line , were it not drawn downwards by the force force of gravity ; and we find by computation , 42 Of Motion in general ;
... that fecondary power . Thus a ftone which is thrown horizontally would proceed horizontally in a ftraight line , were it not drawn downwards by the force force of gravity ; and we find by computation , 42 Of Motion in general ;
Strona 47
... that fecondary power . Thus a ftone which is thrown horizontally would proceed horizontally in a ftraight line , were it not drawn downwards by the force force of gravity ; and we find by computation , 42 Of Motion in general ;
... that fecondary power . Thus a ftone which is thrown horizontally would proceed horizontally in a ftraight line , were it not drawn downwards by the force force of gravity ; and we find by computation , 42 Of Motion in general ;
Strona 66
... draw ef , ik , mn , & c . all parallel to the bafe BC . Then , fince the velocity of the descend- ing body has been gradually increafing from the commencement of the motion , and BC represents the ultimate velocity ; therefore the ...
... draw ef , ik , mn , & c . all parallel to the bafe BC . Then , fince the velocity of the descend- ing body has been gradually increafing from the commencement of the motion , and BC represents the ultimate velocity ; therefore the ...
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Kluczowe wyrazy i wyrażenia
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...