...mechanical principles the conservation of force, properly understood, is amply recognized — 1st. In Newton's Third Law of Motion, that action and reaction are equal and opposite ; 2. In the fact that in the existing universe, supposing no new particles or bodies introduced, by...

...earth by concussion m the form of pressure. But according to Sir Isaac Newton's expression, of the third law of motion, that action and reaction are equal and opposite, the power, whatever it may be, which generates the projectile force upwards, generates an equal amount...

...perfectly true proposition that momentum in a givln direction is conserved. This is a corollary from Newton's Third Law of Motion, that action and reaction are equal and opposite. For, if any change took place in the momentum of a system resolved along any particular direction whatever,...

...bodies, we having no conception of an action of force on force. Again, on p. 8, as to the quotation from Newton's third law of motion that action and reaction " are equal and opposite," it has always seemed unfortunate to the present writer that the word " simultaneous " is not usually...

...so far as to be able to change the state of the atoms. The same conclusion is forced upon us by the third law of motion, that action and reaction are equal and opposite, since we recognise in action the advance of a reinforcement of corpuscles of one kind ; and in reaction...

...MOMENTUM ROUND ANY POINT IS CONSTANT. This important theorem is deduced from the fact stated in the third law of motion, that action and reaction are equal and opposite. Let us take any two particles ; then, the acceleration of the moment of momentum of one of them, A,...

...second ball, in turn, expands after the blow and squeezes the third, and so on. Hence, in virtue of Newton's Third Law of Motion, that "action and reaction are equal and opposite," it follows that the pressure produced by the blow of the first ball is handed on from ball to ball,...

...flutter, turbine, ete. The turbine wheel, for example, acts on the principle of reaction, according to Newton's third law of motion that action and reaction are equal and opposite. Other applications of the law of gravitation are those of weights, the balance, the pendulum, etc.,...

...momentum. This principle can be proved by purely theoretical considerations involving the use of the Third Law of Motion that Action and Reaction are equal and opposite. We shall deal here with its experimental verification, limiting ourselves to experiments dealing with...

...suppressed wish or autonomic tension. Behavior is the resultant of parallelograms of forces-wishes. The third law of motion, that action and reaction are equal and opposite, has probably determined the principles of the mechanical construction of the body, in that the position...