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Originally posted by melatonin
yes, I am aware it was from AIG, but it has the nice correlation from a proper article that indicates the highly significant relationship between the factors. There are three independent chemical/biological mechanisms that ALL confirm each other (i.e. they do not rely on each other and to have the same degree of error in each is highly unlikely).
So, nice try handwaving.
here's your next hurdle...
water.usgs.gov...
water.usgs.gov...
and water.usgs.gov...
So, we have devil's hole data corroborated by ice-cores, sediments, protactinium-231 and thorium-230. Again, all independent mechanisms.
Minimum age = 567,000 years
Any ideas? If you can hand-wave this away, we'll go further back...
[edit on 16-5-2006 by melatonin]
one uses the age of previously determined markers to determine the age of various points in the ice-core. The major advantage of these methods is that they can be completed relatively quickly. The major disadvantage is that if the predetermined age markers are incorrect than the age assigned to the ice-core will also be incorrect.
Originally posted by Nygdan
because they have been contaminated
A major problem with this right off the bat is that they are asking you to reject an entire technique simply because it doesn't work sometimes. We know the conditions under which it won't work
Originally posted by Nakash
I'm still attempting to figure out how evolution does not violate the entropy laws.
What's the probability of a watch forming out of a mudpit full of sand next to you?
Originally posted by the_sentinal
i ask this question of you?? can god possibly maniplulate time?? the possibilities are endless...your fight to prove this time theory is a moot point to god he is not bound by the natural laws that we are bound by (gravity , time , space , ) and others, he made all things...and by him all things were made !!
the ice-core sample method could possibly be inacurate also..
one uses the age of previously determined markers to determine the age of various points in the ice-core. The major advantage of these methods is that they can be completed relatively quickly. The major disadvantage is that if the predetermined age markers are incorrect than the age assigned to the ice-core will also be incorrect.
Originally posted by Nygdan
I'm still attempting to figure out how evolution does not violate the entropy laws.
The same way that a snowflake, going from unordered water into a crystal, doesn't.
Originally posted by Nygdan
But that hardly means that abiogenesis is immposible because 'things go from order to disorder', which is generally what is meant by the Entropy arguement.
I'll, clearly, agree, there is currently no good solution to abiogenesis. That doesn't mean its immpossible, and people simply stating 'because entropy increases, it can't occur', just doesn't make sense.
Just like there is a compensation for the increase in order in the snowflake, there can, phsyically, be compensations for the increase in order in abiogenesis. Just what they are, no one knows. Just what the pathway to the biogenic event is, no one knows. But thats not enough of an arguement to say it never happened, no?
Originally posted by mattison0922
Originally posted by Nygdan
I'm still attempting to figure out how evolution does not violate the entropy laws.
The same way that a snowflake, going from unordered water into a crystal, doesn't.
Sorry Nygdan, gotta call you on this. The snowflake analogy doesn't even begin to cover it. Snowflake formation doesn't violate laws of entropy because of the concurrent loss in ambient enthalpy.
That is an increase in entropy is compensated for via a decrease in enthalpy. The entropy increases only as a result of insufficient enthalpy to keep water in the liquid as opposed to solid states.
Biological polymer formation is different. The entropic barriers that must be overcome to form a DNA polymer are quite different.
Heat is NOT an adequate source of enthalpy simply becuase it's not directed. If heat or other undirected energy is added, other reactions, NOT polymerization are favored.
Confirm this for yourself by looking at the delta G values for various polymerization reactions and other bond breaking reactions. I encourage it.
Some polymerization will occur, but it exists in a dynamic equilibrium, that is polymers are continuously breaking and forming yielding - under ideal conditions, maybe a 20mer. Furthermore given the state of dynamic equilibrium the polymer won't be the same from one moment to the next.
Originally posted by Byrd
Ugh. That shows you how BAD the science is on these sites! They're throwing around "enthalpy" as a magic term to wave when someone points out the above hole. Simply put, enthalpy is the amount of energy available in a chemical that is capable of doing mechanical work.
Biological polymer formation is different. The entropic barriers that must be overcome to form a DNA polymer are quite different.
Would you care to present the physics and math for this? There's a lot of stuff out there that says this is wrong (that the physics which determines the amount of energy needed to create polymers can be calculated by the same physics that determines how much energy is needed to create a snow crystal bond), so I'd really like to see how the laws of math and physics are changed when we're dealing with organic chemistry.
Like a lot of folks here, I did take a semester of organic chemistry and can stumble my way through the physics. A violation of physics and chemistry of that magnitude really is the kind of thing that Nobel Prizes are granted for.
I'd love to see the math, there.
Heat is NOT an adequate source of enthalpy simply becuase it's not directed. If heat or other undirected energy is added, other reactions, NOT polymerization are favored.
So how do you explain the complete subbranch of chemistry which involves polymer science, where the heat bonding of formation (using... heat, y'know) is discussed and the temperatures at which polymers form is an important topic?
Originally posted by Byrd
Confirm this for yourself by looking at the delta G values for various polymerization reactions and other bond breaking reactions. I encourage it.
Uh... you DO know that to form the original bonds (carbon to oxygen, etc) we have heat and energy transfer, and that the energy from these reactions does things like cause our bodies to have a certain temperature. There is also heat and energy exchange from the acids or other solvents used in the reactions (which produces the heat for the reaction.) This is pretty clear in lecture notes, such as this one from a biology class. It isn't the "delta g values for various polymerization reactions" -- that's just the end product of the construction. You have to look at the energy exchange in EVERYthing, from the first "put oxygen with hydrogen" (which needs heat and energy because it doesn't work at absolute zero) to the creation of each of the ingredients for that final reaction. You can't just look at the last reaction and say "see? Negative delta G!" It's negative only for that reaction and is based on a whopping lot of positive delta g reactions. :
Some polymerization will occur, but it exists in a dynamic equilibrium, that is polymers are continuously breaking and forming yielding - under ideal conditions, maybe a 20mer. Furthermore given the state of dynamic equilibrium the polymer won't be the same from one moment to the next.
In a "dynamic equilibrium", the amount of energy in a system is changing.
This means that its heat (the energy of individual atoms) is changing. I'm curious to know how "energy" has been redefined so that it doesn't involve heat in any way or any form.
The thermodynamics laws say that during any energy exchange, heat is involved (and that in a non-closed system, energy input into a system always creates heat) and I'd dearly love to see how they've managed to construct a system where energy is exchanged but heat isn't involved. That's the stuff of Nobel Prizes. :
www.uwsp.edu...
Originally posted by mattison0922
Ummm... that info wasn't taken from a creationist site. It came off the top of my head. Enthalpy is more than just amount of energy available to do mechanical work. Enthalpy does chemical work also.
Look up the heat of reaction for peptide bond or phosphodiester bond formation. (etc)
Biological monomers are different. There are lots of reactive groups, hydroxys, amines, carboxyls, etc., associated with biopolymers. Adding heat to biomonomers doesn't yield coherent homopolymers, it makes a big mess, that isn't even limited to a single type of bond.
Originally posted by Byrd
Ah. Okay, well that's why I try to check before posting... I misremember definitions all the time!
I should note that my confusion here stems from this being a very popular argument by creationists and that it's always badly done. So I leaped in, assuming the same level of argument here.
My point here was that you were looking at an end reaction of a long chain of chemical reactions to create those peptides and that you seemed to be ignoring the total process. Your conclusion "In the absence of enzyme biological polymer formation is precluded both enthalpically and entropically" didn't leap out at me, there. I think I must be having Bad Braincell Days.
What I thought I saw was a conclusion that ignored the input of solar energy, treated the whole process as a black box thermodynamic process, and declared a case for creation.
And here I'm being unclear (what a goofball I was being!) My point was that these reactions do take place at a certain temperature (when there is a certain heat in the atmosphere) and that the process relies on this heat (97 degrees Farenheit or "room temperature" or whatever (I haven't synthesized these, so I don't know) and formation won't occur if you take them up to Barrow, Alaska, in the middle of the winter or in the middle of Antarctica in an unheated lab. Or at the temperature of outer space (which is not very much above zero Kelvin for deep space.)
It's not "put it over a flame" heat, but there is heat in the environment.
So... am I right that the temperatures must be within a certain range for these to form?
Originally posted by shaunybaby
The Bible DOES NOT hold up to scientific scrutiny.
If you apply stories in The Bible to science, they merely fall apart.
I find it laughable that anyone would even try and prove Noah's Ark happened, let alone trying to apply scientific evidence/findings to it.
Originally posted by thexsword
I must disagree with the statement of "science and religion tend to butt heads". It is true that scientist, and Christians butt heads, but science itself does not butt heads with certain religions.
The study of evolution is to study the history of the world and how things became, and to use that evidence to prove it.
So why can you not do the samething with a historical book like the Bible?
Surely there is a certain amount of faith involved in believing in something we can't see physically,
but evolution has such little facts that prove anything at all, yet we have so many more facts to prove to the earth being exactly as the Bible depicts it.
I am no scholar, and wouldn't consider myself overly knowledgable about this subject. It seems that so many people here are so adament that science proves evolution, and not for the sake of argument, because that's the last thing I want, if anyone could possibly give me a piece of evidence that could prove macroevolution I would love to hear it.
I don't believe my opinions will change, but you never know.
Originally posted by thexsword
if anyone could possibly give me a piece of evidence that could prove macroevolution I would love to hear it.