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THE Entropy Thread (merged)

What's on your mind?
General interest discussions, not necessarily related to depletion.

Unread postby Matrim » Mon 04 Oct 2004, 22:48:38

$this->bbcode_second_pass_quote('', 'N')o way to make anyone accept such a system of course, people are not intelligent enough to contemplate such a thing, and in addition you would have to have a great deal of control over people's private lives.


And isn't that a bitch? The worlds going to hell in a handbasket, and there isn't a damn thing we can do about it.

I'm beginning to think that a crash is not just imminent, but necessary.

What other hope do we have of living with each other? Everyone just seems to want to kill everyone else for one reason or another. Under our current system, is it even possible to change that?
I doubt it.

Here in N.America we need a serious kick in the ass to get it through our heads that things need to change. This garbage about "the market will give signals and save us all" is practically all-pervasive on this continent.

It's sad, but it'll be a lot sadder when they start stringing up folks like Monte just because he was right and they can't accept it. *sigh*
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Unread postby Pops » Tue 05 Oct 2004, 09:41:18

How Big Should A Small Farm Be?
John Ikerd
(Or “Entropy and Industrial Agriculture”)

“This dissolution of boundaries, this industrialization of agriculture, has resulted in tremendous gains in agricultural productivity and economic efficiency. As with industrialization in general, it has released tremendous stocks of stored energy that were constrained by the boundaries that once defined different fields, family functions, enterprises, farms, and even farming communities. The boundaries have been removed and the energy has been released. But, once the stored energy has been used up, where will these industrial farming operations get new energy?”

http://www.ssu.missouri.edu/faculty/jik ... owBig.html
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Unread postby Pogma » Tue 05 Oct 2004, 10:01:37

$this->bbcode_second_pass_quote('Matrim', '')$this->bbcode_second_pass_quote('', '
')I'm beginning to think that a crash is not just imminent, but necessary.


*


Luckily, your views are the minority and your mindset prohibits your accession to any positions of authority.
I wonder what most moms and dads would think of your thoughts son? 8O :roll:
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Unread postby rerere » Tue 05 Oct 2004, 10:54:23

$this->bbcode_second_pass_quote('Matrim', 'T')his garbage about "the market will give signals and save us all" is practically all-pervasive on this continent.



Here is an example of why "the market" is busted and some people do not understand the bustification of the market as taken from this very forum:
$this->bbcode_second_pass_quote('k_semler', ' ')
EROEI simply proves that tar sands are just not economically exploitable

Then $this->bbcode_second_pass_quote('JohnDenver', '
')If that is so, then how do you explain the fact that private companies are exploiting those resources commercially?


Simple. There is no "Market" to give "Signals" The "Market" is distorted by Governments and their taxation policies. From http://www.camagazine.com/index.cfm/ci_id/6876/la_id/1.htmfor a mining operation, these expenses can be written off at 100%

The 'rebuttal' in the above case by JohnDenver ignores the Government's hand.

Another Example - US Nuclear power. The Government has limited the fiscal damages from a nuke plant accident and the Government has 'ownership' of the waste. So much for a push or a slap from the invisible hand of the market.
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Unread postby lotrfan55345 » Tue 05 Oct 2004, 16:25:41

$this->bbcode_second_pass_quote('Pogma', '')$this->bbcode_second_pass_quote('Matrim', '')$this->bbcode_second_pass_quote('', '
')I'm beginning to think that a crash is not just imminent, but necessary.


*


Luckily, your views are the minority and your mindset prohibits your accession to any positions of authority.
I wonder what most moms and dads would think of your thoughts son? 8O :roll:


I'm glad I'm not your son! Do you make them live the exact same lifestyle that you do since you seem very close-minded and troll-ish. If they have a pessimistic attitude, do you ground them for a year?

Here is a simplified version of the contents of all you posts: "If it goes against my views, it MUST be wrong"

:)
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Unread postby Falconoffury » Tue 05 Oct 2004, 18:27:21

I think the absolute core of the problem is human nature. It's human nature to want more, and it's human nature to only look at the short term.
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Unread postby MonteQuest » Tue 05 Oct 2004, 18:49:06

$this->bbcode_second_pass_quote('Pops', 'H')ow Big Should A Small Farm Be?
John Ikerd
(Or “Entropy and Industrial Agriculture”)

$this->bbcode_second_pass_quote('', 'I')f you drive right through “your” town to buy things in the city, just to save a few dollars.




Thanks Pops! Great article. Drives home my point. I have a "just right" 212 acre, Missouri, black gumbo farm with a 15 acre pasture that has never been plowed, pheasants in the hedge rows, squirrels in the groves, and no chemicals on the fields. :D
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Unread postby backstop » Tue 05 Oct 2004, 18:56:48

Falcon - I'd differ with you there. I think what you see as human nature is just the product of America's culture and history, with a substantial grounding in European colonialist values. This is not to say that here in Europe the latter values don't still cause harm: they do, to us and others.

I'd in no way deny that the ideology of 'acquisitiveness' has been present and growing for as long as man's made cities. But I'd point out that history has not only been written by the victors, its also been written for the rich.

There have been and still are many examples of peaceable cultures thriving and respecting the wellbeing of their descendants, and yet their values don't seem to get the same coverage.

I'd suggest that the extreme societies that we see now are an aberation from human nature, which reflects their isolation from Nature, and that IMHO is at the core of their problem.

regards,

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Unread postby MonteQuest » Sun 21 Nov 2004, 03:21:11

$this->bbcode_second_pass_quote('smiley', ' ')
The problem is the definition of entropy itself. A lot of people define it as a degree of disorder. This is plain wrong.


Let's see if we can clarify this definition in laymen's terms once and for all. Entropy only involves energy and its spreading out, not appearance or neat patterns. Entropy increases when "heat" (transfer of energy) spontaneously flows from something hot to something colder. The messy appearance of a bunch of visible objects has nothing to do with entropy. The only question is "what is the energy process that made the objects that way? Things don't have any tendency in themselves toward macro disorder; the energy flow that moves them is the cause of disorder. A child's room, for example, only get's "messed up", out of order, if he is in it, right? Close the door and forget about the room for 20 years, and yes, things will tend to fall apart, degrade and become less organized. This is the random movement towards disorder that we call entropy.
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Unread postby TrueKaiser » Sun 21 Nov 2004, 04:15:32

$this->bbcode_second_pass_quote('smiley', 'O')K I'll try to explain it in laymans terms. But first let me reiterate that I do not object against the second law, I just question the way we interpret the concept of entropy.

Imagine an extremely large box, which is hermetically sealed; the ideal closed system. In that box is a gas, uniformly dispersed; the ultimate form of disorder.

Now imagine that in the box there is a tiny section with a larger density than the remainder of the box. Since the density is locally somewhat larger than the remainder of the gas that section is going to exert a gravitational pull on the gas around it. Gas starts flowing toward the density variation.

As more and more gas starts to be contained by the aberration the gravitational pull becomes stronger until all the gas has been absorbed and the gas will first liquefy and then crystallize. The content of the box has thus become ordered.

If you say that entropy equals disorder then the entropy should have lowered. But that can't be possible in a closed system. If we assume that the second law is correct (as I do) then we must get rid of the idea that entropy equal disorder.

Entropy itself does not distinguish between order and disorder. Whether a system will become ordered or disordered depends on the presence of interactions. When there are no interactions the system remains chaotic. However when you do have interactions (such as gravity), then the system can and will become statically or dynamically ordered. This is the basis of chaos theory.

Such events and such interactions are not rare, they are the norm. They are the reason why we can find so many ordered things on our planet and so little truly unordered things. Sometimes the scale of the order surpasses our imagination. For a lice walking on a carpet, it might seem a random bunch of colored fibers instead of a well-woven design. But the overwhelming majority of things we know is ordered.


if a gravity depresion causes the gas to solidify then would it be a open system and not a closed system?
Last edited by Ferretlover on Tue 17 Mar 2009, 10:34:44, edited 1 time in total.
Reason: Merged with THE Entropy Thread.
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Idioms and Second Law; Part three

Unread postby MonteQuest » Sun 21 Nov 2004, 19:01:48

There is no such thing as a free lunch.--Water does not flow uphill.--You can't get something for nothing.--Shit happens.--Why me?-- Time's Arrow. -- Left to themselves, things tend to go from bad to worse--Every solution breeds new problems.--Chaos always wins, because it's better organized.-- Murphy's Law: If anything can go wrong, it will.-- We have all heard these sayings, but what do they really mean? What do they refer to? They all refer to the Second Law of thermodynamics.

$this->bbcode_second_pass_quote('', 'T')hermodynamics is the only physical theory of universal content which, within the framework of the applicability of its basic concepts, I am convinced will never be overthrown.-- Albert Einstein

As one of our major goals, we humans want order and organization of many different varieties. An equally important goal is our desire for concentrated energy substances as materials in our artifacts and as totally controllable power sources in our machines. Neither goal is consistent with the second law. Yet we are surprised when, against our naive wishes, the predictions of Murphy's Law actually come about. Murphy's Law fits an emotional human need when we are frustrated; it is humorous because it is such a gigantic exaggeration.

Statistically, Murphy hyperbolizes a small probability. Yet subconsciously we let his humorous law goad us to concentrate on things going wrong. Over the millennia, humans have struggled to understand what has been seen as the threatening mystery of erratic nature, to learn why bad things happen to all of us. Second law tells us why. The second law of thermodynamics is real in our physical world; it favors immobile sand and the silent, occasionally violent, spreading out of energy. Should not "Why me?" be our question each minute? If you truly understand Second Law, then the only rational response is "Why not me?"
Last edited by MonteQuest on Mon 15 Aug 2005, 00:12:42, edited 1 time in total.
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Unread postby pup55 » Mon 22 Nov 2004, 21:56:33

MQ:

Here's the best example in human history of an attempt to defy entropy.

http://www.ancientegypt.co.uk/pyramids/home.html

After 4000 years, it has been maybe 70% successful.

The best engineers and the national resources of the most powerful nation on earth were devoted to their construction. Ironically, the social systems were a lot more fragile than the structures.

I have two nominations for our time: fullerenes and Voyager. In the case of Voyager, it's a matter of probability, really. If it makes it into deep space, it will presumably go on in its "assembled state" forever, to the extent that we understand "forever". On the other hand, maybe it has already been whacked by a comet, for all we know. In the case of the Fullerenes, maybe they are small enough and durable enough to resist entropy "indefinitely".

As in the above case, the social systems that produced them are more vulnerable than the fabrications.
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Unread postby BlueGhost » Tue 23 Nov 2004, 21:52:43

Err we're still observing both Voyager 1 and 2. They were in the news recently due to a dispairty in their de-acceleration due to the mass of the solar system... A dispairity in BOTH inspite of the fact they-re going in opposite directions... Never did find out what happend to that story.

Course they could have been whacked by something and we haven't noticed, I imagine that the light speed delay would be non trivial at 90 AU :)

http://voyager.jpl.nasa.gov/
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Unread postby MonteQuest » Thu 13 Jan 2005, 02:32:33

So many people on this site continue to ignore the imperative of the second law of thermodynamics; they just go on debating the old world pardigm as if things will just continue as usual. Until this site focuses more on the laws of thermodynamics and a new world view, all we are doing is jacking off.

The Neurobiology of Mass Delusion
$this->bbcode_second_pass_quote('', 'T')hose who know about "Peak Oil," monetary debts, climate change, militarism, overpopulation, corporatism, soil loss, aquifer depletion, persistent organic pollutants, deforestation, etc., realize we are at a major historical juncture now. Since we know it is past time to change our culture, the question we have is whether most people will bother to listen and create the necessary transition in a rational, non-violent manner.

For those who find the terms in the previous paragraph somewhat mysterious, try this. Research the "laws of thermodynamics" and compare them to the cultural imperative for "economic growth." See if you can recognize and then resolve the tension between the two in your mind. If you can't resolve the tension, decide which one of these has to go. Look back at the terms in the previous paragraph and ask how they relate to what you've just learned. Caution: afterwards you may need a good shrink.

http://www.energybulletin.net/3948.html
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Unread postby Chuck » Thu 13 Jan 2005, 06:03:57

$this->bbcode_second_pass_quote('MonteQuest', 'S')o many people on this site continue to ignore the imperative of the second law of thermodynamics; they just go on debating the old world paradigm as if things will just continue as usual. Until this site focuses more on the laws of thermodynamics and a new world view, all we are doing is jacking off.



http://www.energybulletin.net/3948.html[/quote]

I agree Monte. Very insightfull link also. I refer to this stubborness as "cognitive dissonance". (but maybe that is something different)
The whole PO-phenomenon enforced my prejudices about people in general. :cry:
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Unread postby Xelat » Fri 14 Jan 2005, 00:05:26

A PREFACE:
This was formerly a new topic - but it was removed and suggested I repost it here. OK. I am not going to quote the "2nd Law" Party led by Montequest but rather paraphrase their arguments. It has been suggested that this distorts their arguments. If so I would like to here about it. Respect to all.
_______________

In December in tangling with Montequest he made an argument that Peak Oil is inherently an unsolvable problem due to the 2nd law. Immediately my intuition contorted as if disgusted by the wrongness of his argument. Of course "wrongness" won't change hearts and minds at Peakoil.com. So I sifted through pages and pages of posts in the "Technology and Peak Oil" and "Laws of Thermodynamics" threads. I also cracked my old physics textbooks. And so now I'd like to set it right.

Montequests use of the law in these and other threads is a terribly terribly terribly incorrect application of the 2nd law. Keith_McClary, Nero and others have the correct understanding. Let's state the crappy version of the law:

Any system which is free of external influences becomes more disordered with time. This disorder can be expressed in terms of the quantity called entropy.

Actually this is one of several versions that are in words. Let us stick with words. I will paraphrase Montequests argument:

Human beings have decreased entropy by creating society and since the entropy of the earth is steadily increasing they face an increase in entropy.

This argument is terrible. Why? The law again:

Any system which is free of external influences becomes more disordered with time. This disorder can be expressed in terms of the quantity called entropy.

The Earth is not a system free of external influences. It approximates a closed system - a system which has energy exchange with the outside but not matter - as has been noted in the the "Tech" thread. If in fact the Earth were free of external influences it's likely life would never have evolved here and it would be a relatively boring place. But the Sun provides substantial energy input to the Earth, and the Earth radiates a substantial amount of energy into space. Thus the concern over greenhouse gases.

The Sun has been keeping entropy stable on earth by doing (electromagnetic) work on it as a system since, well, far outside the scope of our argument. As such if we were to define a isolated system (a system which does not exchange matter or energy with the outside) including the sun and the earth we would find that outside of the earth there was a substantial entropy increase.

Some numbers. Total Insolation (energy received by earth) for Battlefield Earth is 15000 the energy consumption of the human race. If we are able in the geologic short term to capture this energy slightly more efficiently than the biosphere generally does then we should be able to coexist with environment relatively free of destructive influence. A careful reading of Heinberg's book for example (which I have issues with) will indicate that he believes this possible . . . if renewables are developed aggressively.

(What percentage of energy received by earth is eventually reradiated??)

My hope then is we will hear no more cries of "2nd Law! 2nd Law!" during discussions as if this immediately refutes the other sides argument. The 2nd Law does not gurantee that we must powerdown, or that humanity will go extinct or any other such malarky.

Monte seems to have refined his argument a bit as of late and I will now paraphrase that:

Technologies increase entropy. We can only maintain entropy near it's current levels by making use of energy from outside of the system due to the 2nd law. Hence we face a dieoff.

I do not agree with the argument. However I do believe this to be a correct invocation of the 2nd law. Where I disagree - which is not the main thrust of this thread - is that it may be possible to have technology which we consider more advanced yet increases entropy less. Namely through efficiency - which is the Forum focus - LEDs are a good example. I also disagree that the current population necessarily can't be sustained at a lower technical level through more equitable/intelligent organization of resources. These two assertions seemed to be implicitly assumed false by Montequests argument. I do accord "non trivial die off" a significant probability as various resources peak. But it is to my mind certainly not inevitable (witness 30% year on year growth in Solar and Wind industries).

This thread is in no way meant to be a personal attack on Monte - just a vicious criticism of the arguments that he and others have made. I think it's important that those who may have comed to believe these arguments in october (when "Tech" posting was last in full swing) reconsider.

Smoke em if ya got em.

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Unread postby MonteQuest » Fri 14 Jan 2005, 01:08:00

$this->bbcode_second_pass_quote('Xelat', 'M')ontequests use of the law in these and other threads is a terribly terribly terribly incorrect application of the 2nd law. Keith_McClary, Nero and others have the correct understanding. Let's state the crappy version of the law:

Any system which is free of external influences becomes more disordered with time. This disorder can be expressed in terms of the quantity called entropy.

Actually this is one of several versions that are in words. Let us stick with words. I will paraphrase Montequests argument:

Human beings have decreased entropy by creating society and since the entropy of the earth is steadily increasing they face an increase in entropy.

This argument is terrible. Why? The law again:

Any system which is free of external influences becomes more disordered with time. This disorder can be expressed in terms of the quantity called entropy.

The Earth is not a system free of external influences. It approximates a closed system - a system which has energy exchange with the outside but not matter - as has been noted in the the "Tech" thread. If in fact the Earth were free of external influences it's likely life would never have evolved here and it would be a relatively boring place. But the Sun provides substantial energy input to the Earth, and the Earth radiates a substantial amount of energy into space. Thus the concern over greenhouse gases.


On the contrary, I am quite correct in my use of 2nd law. Anyone who has read my posts on 2nd Law knows that I have addressed isolated, closed, and open systems, and their differences with respect to applying the law to them. Xelat does not understand the law sufficiently here, so I will reiterate:

The principle that energy always runs from hot to cold is completely equivalent to saying entropy always increases. In an isolated system like the universe, this is a constant where it is free of external influences as Xelat says. But, in open and closed systems, like living organisms and the earth, entropy can be reversed or reduced at one point, but only with an even greater increase in entropy somewhere else in the environment. The energy required to create order is always greater than the energy required for disorder to happen. Entropy applies to everything. No exceptions. Energy cannot be converted from one form to another without a loss of energy in the form of heat. Classic Second Law in an isolated system. In an open or closed system, this loss can be reversed or reduced, but only by increasing the loss even greater somewhere else. This is what Xelat fails to grasp, as most people do.

Just because the earth is not free of external influences, does not mean that entropy stops increasing, it only means that it can be reduced or reversed by the addition of outside energy, but only with an even greater increase in entropy somewhere else. There are no free lunches. Technology is complex. It requires a lot of energy transfers. In each transfer there is a loss of usable energy creating an increase in entropy that requires even more energy use to deal with the disorder. Look around you at the mess we have made of the earth in order to have our time-saving and labor-saving devices; the loss of species, habitats, climate change--all examples of that increased entropy somewhere else. You cannot avoid starvation by eating your food faster. Entropy is always increasing and one day the sun will die and so will all life here on earth, that is a given. 2nd law leaves us with the following imperative:

Since we can't beat the system(energy cannot be created or destroyed, 1st Law), and we won't have the energy required to hold entropy at bay(reduce or reverse), post-peak, we must reduce our increase of entropy by a power down and a simplification of our use of energy(less energy transfers). We can't have a completely sustainable world due to the limits set by the 2nd law, but we can find a far more harmonious existence with our fragile planet--and, leave more of a share of our finite resources to future generations in the process.
Last edited by MonteQuest on Sat 12 Nov 2005, 20:54:18, edited 2 times in total.
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Unread postby MonteQuest » Fri 14 Jan 2005, 01:35:14

$this->bbcode_second_pass_quote('Xelat', 'M')onte seems to have refined his argument a bit as of late and I will now paraphrase that:

Technologies increase entropy. We can only maintain entropy near it's current levels by making use of energy from outside of the system due to the 2nd law. Hence we face a dieoff.

I do not agree with the argument. However I do believe this to be a correct invocation of the 2nd law. Where I disagree - which is not the main thrust of this thread - is that it may be possible to have technology which we consider more advanced yet increases entropy less. Namely through efficiency - which is the Forum focus - LEDs are a good example. I also disagree that the current population necessarily can't be sustained at a lower technical level through more equitable/intelligent organization of resources. These two assertions seemed to be implicitly assumed false by Montequests argument. I do accord "non trivial die off" a significant probability as various resources peak. But it is to my mind certainly not inevitable (witness 30% year on year growth in Solar and Wind industries).

Yes, there are, and will be technologies that seem to defy 2nd law, but they won't. Increases in efficiency through the use of new technology have an increased entropy cost as well--you have to design, and obtain the raw materials and energy to make them. To gain this new efficiency, you have increased entropy even more. You can't win, you can only lose. An increase in efficiency under 2nd law, means a reduction in the energy transfers, a more simple method of completing the same task. While a vacuum cleaner is more efficient, does it create less entropy than a broom and dustpan? Hardly. The energy and raw resources required to make a vacuum cleaner far outweigh that to create a broom and dustpan, but they both accomplish the same goal; to create order.

Another example is using natural gas in a power plant to generate electricity to heat hot water in a home. It is only about 1/3 efficient in this use, while using natural gas at its point of use(home hot water heater) eliminates the energy transfers, along with the inherent losses, that are required to generate and transmit electricity over long distances. Thus, it is a more efficient use of the energy source.
Last edited by MonteQuest on Sat 12 Nov 2005, 20:57:01, edited 1 time in total.
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Unread postby 0mar » Fri 14 Jan 2005, 01:52:44

Incredibly minor nitpick, but you can reduce entropy with the same amount of energy that caused the entropy. It almost always takes more though :)

So yea, incredibly minor and bears absolutely no revelance to any arguements about energy use.
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Unread postby MonteQuest » Fri 14 Jan 2005, 02:06:15

$this->bbcode_second_pass_quote('0mar', 'I')ncredibly minor nitpick, but you can reduce entropy with the same amount of energy that caused the entropy. It almost always takes more though :)

So yea, incredibly minor and bears absolutely no revelance to any arguements about energy use.


Almost? In what cases has 2nd law ever been avoided? It always takes more.

And how is it not relevant to energy use? If you have a limited amount of energy, 2nd law tells you just exactly how to utilize it: with the least amount of energy transfers.
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