Vis Viva

In the history of science, vis viva (from the Latin for living force) is an obsolete scientific theory that served as an elementary and limited early formulation of the principle of conservation of energy. It was the first description of what we now call kinetic energy or of energy related to sensible motions.

Proposed by Gottfried Leibniz over the period 1676–1689, the theory was controversial as it seemed to oppose the theory of conservation of momentum advocated by Sir Isaac Newton and René Descartes. The two theories are now understood to be complementary.

The theory was eventually absorbed into the modern theory of energy though the term still survives in the context of celestial mechanics through the vis viva equation.

Read more about Vis VivaHistory

Other articles related to "vis viva, vi":

Vis Viva - History
... He called this quantity the vis viva or living force of the system ... Thus the momentum was held by the rival camp to be the conserved vis viva ... with the observations of Willem 's Gravesande, showed that vis viva was dependent on the square of the velocities ...
History Of Energy
... The concept of energy emerged out of the idea of vis viva (living force), which Leibniz defined as the product of the mass of an object and its velocity ... in its modern sense, instead of vis viva ...
James Prescott Joule - The Mechanical Equivalent of Heat
... Joule here adopts the language of vis viva (energy), possibly because Hodgkinson had read a review of Ewart's On the measure of moving force to the Literary and Philosophical Society in ... to the recognised principles of philosophy because it leads to the conclusion that vis viva may be destroyed by an improper disposition of the apparatus Thus Mr Clapeyron draws the inference that 'the ...
History Of Thermodynamics - History - Kinetic Theory
... made a connection with Gottfried Leibniz's vis viva principle, an early formulation of the principle of conservation of energy, and the two theories became intimately ... experimental approaches, and it is unlikely that he was thinking of the vis viva principle ... theory in 1820, but mistakenly associated temperature with momentum rather than vis viva or kinetic energy ...
Conservation Of Energy - History
... mechanical systems (of several masses, mi each with velocity vi ), was conserved so long as the masses did not interact ... He called this quantity the vis viva or living force of the system ... even in systems with friction, as defined by the momentum was the conserved vis viva ...

Famous quotes containing the word vis:

    As to “Don Juan,” confess ... that it is the sublime of that there sort of writing; it may be bawdy, but is it not good English? It may be profligate, but is it not life, is it not the thing? Could any man have written it who has not lived in the world? and tooled in a post-chaise? in a hackney coach? in a Gondola? against a wall? in a court carriage? in a vis a vis? on a table? and under it?
    George Gordon Noel Byron (1788–1824)