Showing posts with label Entropy. Show all posts
Showing posts with label Entropy. Show all posts

Friday, December 04, 2009

Posted on Tribes » Science & History » Thermodynamics and Entropy » topics »
Uh...Can Time exist without Motion? Maximum Low-entropy
topic posted Sat, June 28, 2008 - 12:27 PM by offline Tom Key

Ever since Georgescu-Roegen introduced -- more, he physiologically implanted it under the skin -- the concept of ENTROPY into economics, we have had to pay attention. Pay and pay. Of course that's entropic -- it is the exaction of existence, the paying and the pain. Entropically, more is taken than is given.

It is not a mystery that everything gets Colder, Slower, Darker, and Older; it is Law. The reality fixed by the structure of thermodynamic existence.

Of course, the key to this one-way vector is the "older" part -- the irreversibility of Time. Time is functioning as the growing medium of Entropy. We can variously make wine and vinegar out of grapes, but we cannot make grapes out of wine.

We have to wonder, however -- observe the rising bread of mystery -- whether Time could exist without motion, at maximum entropy. Mathematically, we have not shown that Time exists independently. Clearly, we have conservation of energy, but not of Time. Even in a low-entropy state, would there be confusion, or even a gradient, between yesterday and tomorrow?

The point here, is What is the point of a Big Bang? Was there a high-entropy state behind the low-entropy origin of our Universe?

And may I suggest, with irony of course, that there is Peace through Entropy. For ALL of us who decry religious wars, is there salvation in Physics? In a world populated with men and women dreaming of a Heaven for themselves and a Hell for the rest of us, if only all aspirant bombers and child-murderers would pause in their endeavors, to explain What God would reward them for destroying what has been "created" in and over such a brief and enduring Time?

Thursday, November 26, 2009

Life Death Matter Energy - fractions of Time

No chemical element or species of energy is peculiar to Living Things which distinguishes them from Dead Things. It is the patterns, not the constitution, of the Living tissues which is distinctive. Observation tells us that this is what is real -- that there is a difference between the Living and the Dead, and the Material and Energetic States. But E=mc2, where Matter and Energy are the SAME, and the difference, although significant, is ONLY Time.

Now it is Time. The work to be done is not to preserve species or diversity or things or fetuses or fuels. That is all 18th to 20th century. The work of the 21st century is to come to terms with the Vector, not merely the Stuff. It is the equilibration of matter, the fractured chronology, the entropical storm going older colder darker slower quieter and...all the Same, to which Science is now inviting us to turn.

Wednesday, July 16, 2008

Entropy and Hawking Radiation.

As I get older, I increasingly "get" the fact that I DON'T "get it". Nothing brings this more home to me than the dissipation of energy from Black Holes, or what is known now as Hawking Radiation. Named for the conjecture made in the 1970's by the "theoretical physicist", Stephen Hawking (Cambridge).

What concerns me here is the Black Holes themselves; they appear to be entirely too significant. Virtually every thing we see in space is oriented around these huge sucking places. Black Holes are gobbling everything up. Where they go, there goes the universe, literally, and nothing "theoretical" about this Physics.

How can galaxies--ALL of them--ever, or in the spitting instant of the Big Bang, or in an eternity, ever be "built" around places that gobble up stuff?

It gets worse. This concept of "evaporation", or the escape of heat, from the Black Hole horizon. As an object descends, orbits, into the Black Hole, it clearly reaches a point, the invisible "horizon" from which there is no return. From the descending object, the other stars will appear frozen.

There may be a similar "horizon" of time and light as a result of the accelerating expansion of the universe. The light from the most distant galaxies will be receding at light speed, and will not reach us. The distant objects will appear "frozen".

And worse. A central principle of Physics, and certainly quantum mechanics, is that energy is conserved. The information does not just "evaporate" or radiate off to become lost in some way like steam from a boiling pot of water. Within the collapse of an dense Black Hole, there is heat that is getting shredded and scrambled, but it is not "lost". The information falling into the Hole must exist, perhaps as a coating of the Black Hole's horizon.

What is the peculiar nature of the singularity at the small revenant center of a Black Hole? Is the principle of conservation of energy operating here? Or is Entropy itself destroyed in the infinitely dense. At that point, in the center of the Black Hole, as stuff collapses to a point, the concepts of large and small, heavy or light, macro and quantum, old and new, are all transformed.

I just cannot "get it". The foundations of our Physics are apparently at stake, right? Everything getting older, colder, darker, slower, and collapsing into Black Holes -- now that makes perfect sense, but then this What? These things "radiate"? We need more than Susskind's 10-dimensional strings projected in holographic horizons to cobble our universe together.

Saturday, June 28, 2008

Nothing is Entropic; Peace is Inevitable

Ever since Georgescu-Roegen introduced -- more, he physiologically implanted it under the skin -- the concept of ENTROPY into economics, we have had to pay attention. Pay and pay attention. Of course that's entropic -- it is the exaction of existence, the paying and the pain. The Entropic more is extracted than is given.

It is not a mystery that everything gets Colder, Slower, Darker, and Older; it is Law. The reality fixed by the structure of thermodynamic existence.

Of course, the key to this one-way vector is the "older" part -- the irreversibility of Time. Time is functioning as the growing medium of Entropy. We can variously make wine and vinegar out of grapes, but we cannot make grapes out of wine.

We have to wonder, however -- observe the rising bread of mystery -- whether Time could exist without motion, at maximum entropy. Mathematically, we have not shown that Time exists independently. Clearly, we have conservation of energy, but not of Time. Even in a low-entropy state, would there be confusion, or even a gradient, between yesterday and tomorrow?

The point here, is What is the point of a Big Bang? Was there a high-entropy state behind the low-entropy origin of our Universe?

And may I suggest, with irony of course, that there is Peace through Entropy. For ALL of us who decry religious wars, is there salvation in Physics? In a world populated with men and women dreaming of a Heaven for themselves and a Hell for the rest of us, if only all aspirant bombers and child-murderers would pause in their endeavors, to explain What God would reward them for destroying what has been "created" in and over such a brief and enduring Time?