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posted by Blackmoore on Wednesday December 17 2014, @05:00AM   Printer-friendly
from the it's-life-jim-but-not-as-we-know-it dept.

From the standpoint of physics, there is one essential difference between living things and inanimate clumps of carbon atoms: The former tend to be much better at capturing energy from their environment and dissipating that energy as heat. Jeremy England, a 31-year-old assistant professor at the Massachusetts Institute of Technology, has derived a mathematical formula that he believes explains this capacity. The formula, based on established physics, indicates that when a group of atoms is driven by an external source of energy (like the sun or chemical fuel) and surrounded by a heat bath (like the ocean or atmosphere), it will often gradually restructure itself in order to dissipate increasingly more energy. This could mean that under certain conditions, matter inexorably acquires the key physical attribute associated with life.

According to Mr. England life is inevitable property of matter when subjected to the right conditions. It's not invalidating Darwinian evolution, but provides an underlying foundation of how it could start. I must admit I'm quite fascinated by this. If Mr. England can eventually show proof, it might make life a much easier phenomenon to find in our universe.

Article is at Quanta Magazine - A New Physics Theory of Life

Scientific American - A New Physics Theory of Life

At the heart of England’s idea is the second law of thermodynamics, also known as the law of increasing entropy or the “arrow of time.” Hot things cool down, gas diffuses through air, eggs scramble but never spontaneously unscramble; in short, energy tends to disperse or spread out as time progresses. Entropy is a measure of this tendency, quantifying how dispersed the energy is among the particles in a system, and how diffuse those particles are throughout space. It increases as a simple matter of probability: There are more ways for energy to be spread out than for it to be concentrated. Thus, as particles in a system move around and interact, they will, through sheer chance, tend to adopt configurations in which the energy is spread out. Eventually, the system arrives at a state of maximum entropy called “thermodynamic equilibrium,” in which energy is uniformly distributed. A cup of coffee and the room it sits in become the same temperature, for example. As long as the cup and the room are left alone, this process is irreversible. The coffee never spontaneously heats up again because the odds are overwhelmingly stacked against so much of the room’s energy randomly concentrating in its atoms.

 
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  • (Score: 0) by Anonymous Coward on Thursday December 18 2014, @01:12AM

    by Anonymous Coward on Thursday December 18 2014, @01:12AM (#127047)

    I think you're closer to the mark than I am.
    So, the new notion doesn't compete with Darwin or Oparin, but goes back in time before either of their ideas come into play.
    I can go with that.

    -- gewg_