Matter and Motion |
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Page 11
... given instant implies a knowledge of the position of every point of the system with respect to every other point at that instant . ARTICLE V. - DIAGRAMS . The configuration of material systems may be repre- sented in models , plans , or ...
... given instant implies a knowledge of the position of every point of the system with respect to every other point at that instant . ARTICLE V. - DIAGRAMS . The configuration of material systems may be repre- sented in models , plans , or ...
Page 16
... given by the magnetic compass . This was , I believe , the case in the original surveys of some of the West India islands . The results of this survey , though giving correctly the local configuration of the island , could not be made ...
... given by the magnetic compass . This was , I believe , the case in the original surveys of some of the West India islands . The results of this survey , though giving correctly the local configuration of the island , could not be made ...
Page 21
... given time and place it is possible for an event exactly similar to occur at any other time and place . There is another maxim which must not be con founded with that quoted at the beginning of this article , which asserts " That like ...
... given time and place it is possible for an event exactly similar to occur at any other time and place . There is another maxim which must not be con founded with that quoted at the beginning of this article , which asserts " That like ...
Page 26
... given instant is measured by the distance which would be described in unit of time by a body having the same velocity as that which the particle has at that instant . Thus when we say that at a given instant , say one second after a ...
... given instant is measured by the distance which would be described in unit of time by a body having the same velocity as that which the particle has at that instant . Thus when we say that at a given instant , say one second after a ...
Page 27
... given instant . Another mode of obtaining the diagram of velocities of a system at a given instant is to take a small interval of time , say the nth part of the unit of time , so that the middle of this interval corresponds to the given ...
... given instant . Another mode of obtaining the diagram of velocities of a system at a given instant is to take a small interval of time , say the nth part of the unit of time , so that the middle of this interval corresponds to the given ...
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Common terms and phrases
angular momentum ARTICLE attraction axis called centimetres centre of mass change of velocity circle configuration and motion constant corresponding deduce defined deflexion depends Descartes described diagram of displacements diagram of velocities distance ditto dynamical earth effect equal and opposite equal masses equilibrium exerted experiment experimental pendulum external agent external forces foot-pounds force acting given instant gramme gravitation heat Hence hodograph intensity of gravity interval Kepler's KEPLER'S THIRD LAW kinetic energy law of motion length magnets mass equal mass-area mass-vector material particle material system measured method moving mutual action Newton observed orbit origin parallel phenomena physical science planet portions of matter position potential energy pound poundals produce quantity rate of acceleration relative represent respect rotation SECOND LAW simple pendulum space straight line stress string THIRD LAW tion torsion balance total acceleration unit of mass vector vibration wire
Popular passages
Page 54 - Every body continues in its state of rest or of uniform motion in a straight line, except in so far as it may be compelled by impressed forces to change that state.
Page 38 - Change of motion is proportional to the impressed force and takes place in the direction of the straight line in which the force acts.
Page 60 - The total energy of any material system is a quantity which can neither be increased nor diminished by any action between the parts of the system, though it may be transformed into any of the forms of which energy is susceptible...
Page 21 - The difference between one event and another does not depend on the mere difference of the times or the places at which they occur, but only on differences in the nature, configuration, or motion of the bodies concerned.
Page 35 - Every body perseveres in its state of rest or of moving uniformly in a straight line, except in so far as it is made to change that state by external forces.
Page 87 - Rise on the earth, or earth rise on the sun, He from the east his flaming road begin ; Or she from west her silent course advance With inoffensive pace, that spinning sleeps On her soft axle, while she paces even, And bears thee soft with the smooth air along, Solicit not thy thoughts with matters hid ; Leave them to God above, him serve and fear.
Page 59 - act of producing a change of configuration in a system in opposition to a force which resists that change.
Page 114 - ... bodies is proportional to the product of their masses divided by the square of the distance between them.
Page 60 - The doctrine of the conservation of energy is the one generalized statement which is to be found consistent with fact, not in one physical science only, but in all. When once apprehended it furnishes to the physical inquirer a principle on which he may hang every known law relating to physical actions, and by which he may be put in the way to discover the relations of such actions in new branches of science.
Page 20 - All our knowledge, both of time and place, is essentially relative. When a man has acquired the habit of putting words together, without troubling himself to form the thoughts which ought to correspond to them, it is easy for him to frame an antithesis between this relative knowledge and a so-called absolute knowledge, and to point out our ignorance of the absolute position of a point as an instance of the limitation of our faculties.