perpetual motion


  • WordNet 3.6
    • n perpetual motion motion that continues indefinitely without any external source of energy; impossible in practice because of friction
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Webster's Revised Unabridged Dictionary
  • Interesting fact: Roulette was invented by the French mathematician Blaise Pascal. It was a by-product of his experiments with perpetual motion.
    • Perpetual motion (Mech) an incessant motion conceived to be attainable by a machine supplying its own motive forces independently of any action from without. According to the law of conservation of energy, such perpetual motion is impossible, and no device has yet been built that is capable of perpetual motion.
    • Perpetual motion See under Motion.
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Chambers's Twentieth Century Dictionary
    • Perpetual motion motion of a machine arising from forces within itself, constantly kept up without any force from without
    • ***


Chambers's Twentieth Century Dictionary
Fr. perpétuel—L. perpetuus, continuous.


In literature:

Man shall never, in this mortal body we use, exemplify perpetual motion.
"The Best Short Stories of 1919" by Various
Let it be a perpetual literary motion, if the public please.
"The Atlantic Monthly, Volume 18, No. 107, September, 1866" by Various
From dawn to sunset it is an example of perpetual motion.
"Birds of the Indian Hills" by Douglas Dewar
In MS. are three interesting works for the violin, a Rhapsody, a Perpetual Motion, and a Fantasie.
"Contemporary American Composers" by Rupert Hughes
For a moment I thought surely perpetual motion had been discovered.
"Dangers of the Trail in 1865" by Charles E Young
He moves; and the thing he moves may truly be called a motion; for the national idea is perpetual motion.
"What I Saw in America" by G. K. Chesterton
Amongst his various speculations while at Willington, he tried to discover a means of Perpetual Motion.
"Lives of the Engineers The Locomotive. George and Robert Stephenson" by Samuel Smiles
I verily believe that child has discovered the secret of perpetual motion.
"The Message" by Alec John Dawson
But enterprise, that moral perpetual motion, overcomes all obstacles.
"An Appeal in Favor of that Class of Americans Called Africans" by Lydia Maria Child
The young theorist in mechanics thinks he can produce a perpetual motion!
"Practical Education, Volume II" by Maria Edgeworth
He had discovered perpetual motion!
"Graham's Magazine Vol XXXIII No. 2 August 1848" by Various
Hundreds of colored parasols swayed towards the sun like mammoth poppies, gay fans kept the air in perpetual motion.
"Mabel's Mistake" by Ann S. Stephens
The idea of a machine to go by perpetual motion is perpetual nonsense.
"Cole's Funny Picture Book No. 1" by Edward William Cole
Shakespeare takes as his emblem of perpetual motion the dancing "waves o' th' sea".
"Twentieth Century Inventions" by George Sutherland
Life is perpetual motion, and repose is death.
"The History of Freedom" by John Emerich Edward Dalberg-Acton
For a wheel for perpetual motion.
"Old and New London" by Walter Thornbury
It's perpetual motion as sure as ye're a foot high.
"Dick Hamilton's Fortune" by Howard R. Garis
He was to serve as a quieter for Bella's nerves, spirits and perpetual motion, and to guard against Gardiner's somnolence.
"Fairfax and His Pride" by Marie Van Vorst
Perverted, it wastes time and money on perpetual motion, and other like futile inventions.
"The Illustrated Self-Instructor in Phrenology and Physiology" by O. S. Fowler
Now it's perpetual motion.
"The Social Gangster" by Arthur B. Reeve

In poetry:

Too long on land and ocean,
We've served a tyrant king,
Farewell perpetual motion!
We merrily, merrily sing.
"Away With Melancholy" by John Pierpont
Said Art to Nature, "Teach me skill,
That I a wonder may fulfil,
A motion make perpetual,
And not to rest;
As breath of life, keeps moving still
Within the breast."
"Art And Nature" by Susannah Hawkins

In news:

Rube Goldberg Explains the Impossibility of Perpetual Motion.
An Analysis of a Perpetual Motion Machine.
Everyone loves perpetual motion machines.
Texas-style redistricting vexes voters, puts map boundaries in perpetual motion .
Donny McCaslin Perpetual Motion Greenleaf Music.
Recruiting keeps UB's Quinn in perpetual motion .
Modest Mouse, " Perpetual Motion Machine ".
It's a perpetual motion machine .
Science has spent billions of dollars trying to discover the secret of perpetual motion or to determine is such a thing actually exists.
Singer as enchanting perpetual motion machine: hands play about the chopstick shoved through the baroque mass of her brown hair .
Perpetual Motion Up in the Air tries to address the tensions in life, but it fails to transcend clichs.
It's a perpetual motion machine.
A Man In Perpetual Motion.
" Perpetual Motion" will premiere at the TWS Skate Awards night, slated for February 27, 2013, at Hollywood's Avalon Theatre.
Three Perpetual Motion dance performances remain at library branches around the Oklahoma City area this month.

In science:

In this meaning, black hole is a perpetual motion machine of the Universe, and because of the existence of this perpetual motion machine, our Universe will not go to the state of heat death.
Gauge Theory of Gravity
If so, most energy will come from perpetual motion machine in future.
Gauge Theory of Gravity
Properties of perpetual integral functionals of Brownian motion with drift.
On the Brownian directed polymer in a Gaussian random environment
Imagine a perpetual motion machine of a second kind exists.
Algorithmic Information Theory and Foundations of Probability
This is not enough to call the machine a perpetual motion machine of the second kind (indeed, it can contain some amount of cold substance to cool the gaz and some spring to lift the weight).
Algorithmic Information Theory and Foundations of Probability
Wall, “Lorentz violation and perpetual motion,” Phys.
On Horava-Lifshitz "Black Holes"
Wall, “Lorentz violation and perpetual motion”, Phys.
A proof of the generalized second law for rapidly-evolving Rindler horizons
If the tidal forces inherent to a gravitational field are neglected, then one is led to a scenario which seems to bring about perpetual motion violating the first and the second principle of thermodynamics.
A Gedankenexperiment in Gravitation
This work gives a brief summary of ma jor formulations of the third law of thermodynamics and their implications, including the impossibility of perpetual motion of the third kind.
Teaching the third law of thermodynamics
Keywords: laws of thermodynamics, perpetual motion of the third kind, thermodynamics of black holes; engineering education.
Teaching the third law of thermodynamics
Then, by analogy with the zeroth, first and second laws, which prohibit the perpetual motion of the zeroth, first and second kind, we logically extend this sequence and declare that the third law prohibits the perpetual motion of the third kind, which can deliver 100% conversion of heat into work.
Teaching the third law of thermodynamics
One should be aware that the term “perpetual motion of the third kind” is sometimes used to denote a completely different process — a motion without friction and loses.
Teaching the third law of thermodynamics
The zeroth, first and second laws of thermodynamics impose restrictions that prohibit certain types of engines — these can be conventionally called perpetual motions of the zeroth, first and second kind depending on which laws these engines violate.
Teaching the third law of thermodynamics
The n-th law of thermodynamics can be formulated by simply stating that perpetual motion of the n-th kind is impossible.
Teaching the third law of thermodynamics
Since we have two formulations – the Einstein statement and the Nernst principle - we consider two corresponding versions of perpetual motion of the third kind.
Teaching the third law of thermodynamics