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Is there even non-linear decay in that graph? I looked at it and it sure as hell looked linear. (A while back I also tried some number-juggling on the dipole moment data quoted in this TO FAQ. I tried both a linear and an exponential model and IIRC there was virtually no difference, certainly no evidence for exponential as opposed to linear decay.)A single example does not prove that all naturalistic processes follow a non-linear decay.
True Blue, that's not what you are looking for. You are more likely looking for reactions that lead to the formation of a not-so-short RNA polymer. As the paper Vene's spotted demonstrates (by your favourite means: modelling based on reasonable assumptions), nucleobases and ribose/deoxyribose can form from very simple organic compounds spontaneously under a range of conditions perfectly conceivable in a hydrothermal system. So building blocks are not a problem. Polymerisation is not a problem either as there are good candidates for catalysts (montmorillonite) The main question that remains is whether this polymerisation will lead to self-replicating molecules in a reasonable time frame. Some related numbers are cited on TalkOrigins - and I can't recall you raising any valid objections to any of them.Do you happen to know the set of reactions that would lead to the formation of adenine paired with Thymidine and Cytosine paired with Guanine?
Is there even non-linear decay in that graph? I looked at it and it sure as hell looked linear. (A while back I also tried some number-juggling on the dipole moment data quoted in this TO FAQ. I tried both a linear and an exponential model and IIRC there was virtually no difference, certainly no evidence for exponential as opposed to linear decay.)
And it only takes a single example of a linear process to disprove your hypothesis. And guess what the other members have been posting...I guess I can't PROVE that natural processes are non-linear other than by providing hundreds and hundreds of examples.
But to my knowledge, constant friction always results in nonlinear decay,
and 2nd law processes in general are always nonlinear (to my knowledge).
I guess I can't PROVE that natural processes are non-linear other than by providing hundreds and hundreds of examples.
Emphasis added.Wikipedia said:As much as 80% of theraputic doses of salicylic acid is metabolised in the liver. Conjugation with glycine forms salicyluric acid and with glucuronic acid forms salicyl acyl and phenolic glucuronide. These metabolic pathways have only a limited capacity. Small amounts of salicylic acid are also hydroxylated to gentisic acid. With large salicylate doses, the kinetics switch from first order to zero order, as metabolic pathways become saturated and renal excretion becomes increasingly important (REFERNCE: Levy, G; Tsuchiya, T (1972-09-31). "Salicylate accumulation kinetics in man". New England Journal of Medicine 287 (9): 430–2)(WIKI SOURCE HERE)
Actually, constant friction always results in a linear decay of velocity. mdv/dt=f, and f is constant, then v has to be liner.
Please explain how you conclude that, starting with:
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Or stop throwing around the second law of thermodynamics like it explains everything. Either is fine with me.
Or, you can be proven incorrect because there are natural processes that follow zero order rate kinetics (which are linear).
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All I needed to do is find that a natural process exists that follows zero order rate kinetics and I've proven your point wrong.
Emphasis added.
So there you have a natural process (the pharmacokinetics of aspirin in the human body).
QED.
Even if you define "natural" to living organism, and even if we accept your conclusion that metabolism of aspirin is linear [it makes sense that it would be linear if the body is saturated with the stuff], you've not addressed the foundational point of my earlier post. Non-linearity of natural process makes the age-of-the-earth question difficult.
Why should I trust some random person on a message board, especially when he's demonstrably wrong? If you have a constant friction force, velocity decays linearly with time. This is an application of Newton's laws and basic calculus. I'll even prove it to you.
F=ma=mdv/dt=f (f is the constant friction force)
mdv=fdt
mv=ft+C (C is a constant of integration dependant on initial conditions)
v=ft/m+C
Q.E.D., v decays lineraly with time if a constant friction force is applied.
It's intuitively obvious that friction is non-linear.
But to my knowledge, constant friction always results in nonlinear decay,
and plate techtonics move according to the natural magnetic pulls of the earth, and the friction of the plate techtonics is dependent upon many variables, one being the amount of silicate between layers; more silicate = more friction.
By your soccer ball/techtonic physics, eventually the plates will just, stop because the kinetic force moving them ceases; but any geologist will tell you the plates have been moving averagely at a constant rate.
. I've been poking around online trying to find surveying data, to no avail. Without good evidence, I conclude that the continents are basically no longer moving.
Present-Day Crustal Deformation in China Constrained by Global Positioning System Measurements
Results 1 - 10 of about 9,790 for gps plate tectonics. (0.16 seconds)
JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 109, B08405, doi:10.1029/2003JB002944, 2004
Instantaneous global plate motion model from 12 years of continuous GPS observations
We estimate a global plate motion model for 17 major and minor tectonic plates solely on the basis of analysis of data from 106 globally distributed continuous GPS stations, spanning the period from January 1991 to July 2003