Croonian lectures on matter and force : given at the Royal College of Physicians in 1868 / by Henry Bence Jones.

  • Henry Bence Jones
Date:
1868
Catalogue details

Licence: Public Domain Mark

Credit: Croonian lectures on matter and force : given at the Royal College of Physicians in 1868 / by Henry Bence Jones. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    then cease to act, then act, then cease to act, without being otherwise disposed of.” In another manuscript, he says: “ What I mean by the word force is the source or sources of all possible actions of the particles or materials of the universe; being often called the powers of Nature, when spoken of in respect of the different manners in which these effects are shown.” In order to avoid the indistinctness and con- fusion which come from using the word force at one time as the cause of an effect, and at another time as the effect itself; and, in order to confine ideas to the effect which alone can be the object of experimental research, the term conservation of energy is now adopted, instead of the term conservation' of force. Thus, force, which we assume to be indestruct- ible and inseparable from matter, is the cause of energy, and energy is the effect of force. This diagram may perhaps render the use of these terms more clear :— CAUSE. EFFECTS. — - *- , Force or power, total j ( quantity of which is | _ ] Actual energy = Motion asconstantas the total f ~ j Potential energy = Tension quantity of matter. J j
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