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Physicists Propose "Perpetual Motion" Time Crystals

First time accepted submitter b30w0lf writes "It is commonly understood that crystals exist in a state of matter that is periodic in space. Meanwhile, relativistic physics tells us that we should think of time as being a physical dimension, given similar status to the other spacial dimensions. The combination of these two ideas has lead researchers at the University of Kentucky and MIT to propose special manifestations of matter which would be periodic in both space and time, dubbed 'time crystals.' Time crystals would continually transition between a set of physical states in a kind of perpetual motion. Note: the articles stress that this kind of perpetual motion in no way violates the established laws of thermodynamics. While time crystals remain theoretical, methods have been proposed for creating them. The most obvious application of time crystals is the creation of very precise clocks; however, other applications to time crystals have been proposed, ranging from quantum computing to helping us understand certain cosmological models."

5 of 153 comments (clear)

  1. It's like Seinfeld. by Anonymous Coward · · Score: 1, Insightful

    A energy state about nothing.

  2. Re:commonly understood by lennier · · Score: 5, Insightful

    It is commonly understood that crystals exist in a state of matter that is periodic in space.

    If your Bullshit Detector didn't go off as soon you read this in the original post

    Mine didn't. Does yours need calibration?

    A crystal structure is composed of a pattern, a set of atoms arranged in a particular way, and a lattice exhibiting long-range order and symmetry. Patterns are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions.

    Periodicity is a well-defined concept.

    --
    You are not a brain: http://books.google.com/books?id=2oV61CeDx-YC
  3. Re:Attention Radical Free Software Leftists! by AK+Marc · · Score: 1, Insightful

    To charity? More than Mitt. Mitt donated to a big business that isn't a "charity" in any sense of the word, other than tax write off.

  4. Re:They do not propose "Perpetual Motion" by AK+Marc · · Score: 4, Insightful

    so at least mechanically, nothing is happening.

    It's like calling electrons around a proton a "perpetual motion machine". You get perpetual motion, so long as you don't extract energy from it. In fact, from that definition, the heat death of the universe is itself a perpetual motion machine, as everything will be vibrating/moving in entropy. No work may be extracted.

  5. Re:Attention Radical Free Software Leftists! by GoogleShill · · Score: 4, Insightful
    What he's saying is accurate. States which typically vote Republican are the states which contribute the least in Federal taxes, but receive the most in Federal aid.

    http://taxfoundation.org/blog/why-do-some-states-feast-federal-spending-not-others

    As for your disillusioned Obama comment... He wants to make people pay their fair share of taxes while Romney wants the middle class to "distribute" their wealth up the chain so it lands in some dudes bank account, not helping the economy at all. Spending money helps the economy, hoarding it doesn't.