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Subject:
Flaws of mathematics in modeling the 'real world'
Category: Science > Math Asked by: azdoug-ga List Price: $2.00 |
Posted:
28 Dec 2005 06:37 PST
Expires: 01 Jan 2006 08:39 PST Question ID: 610440 |
There's no question about math's validity in solving purely mathematical things. Adding, subtracting, multiplying, dividing, etc. - for those cases, our current form of mathematics is fine. 2 + 2 will always equal 4. The problem arises when we use our current form of mathematics in an attempt to model/describe/analyze the real, physical world. The system falls apart. The main proof of mathematics being flawed in modeling physical things is constants. Planck's constant, the gravitational constant, the speed of light, the gas constant, etc. They are all fudge factors because math isn't modeling the real world properly. Each case is different, but whenever a fudge factor (constant) is used, mathematics has failed to accurately describe the scenario by a factor of X (X being the constant). From a website describing Planck's constant: In 1900, Max Planck was working on the problem of how the radiation an object emits is related to its temperature. He came up with a formula that agreed very closely with experimental data, but the formula only made sense if he assumed that the energy of a vibrating molecule was quantized--that is, it could only take on certain values. The energy would have to be proportional to the frequency of vibration, and it seemed to come in little "chunks" of the frequency multiplied by a certain constant. This constant came to be known as Planck's constant, or h, and it has the value 6.626E-34 J-s. I'm asking if there is (or could be) a better system than math - a system without fudge factors - a system with a more pure understanding of the real world. I've done a little bit of research about String Theory, and my proposed 'new system' sounds similar... one governing equation (system) that works for all scenarios. A 100% completely descriptive system that successfully models the real world without the need for fudge factors i.e. constants. Could something like this exist? Would our minds be able to comprehend it if we've been so 'brainwashed' by the current system of mathematics? Your thoughts... | |
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There is no answer at this time. |
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Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: kottekoe-ga on 28 Dec 2005 11:45 PST |
The system falls apart? Science has been outstandingly successful in modeling the physical world precisely because mathematics works so well in describing nature. We can put a spacecraft in orbit around Saturn with incredible precision using Newton's law. The constants you refer to as fudge factors are an artifact of the historical system of units we use. There is nothing fundamental about the second or the meter, so we of course have to use a strange number (c ~ 2.998*10^8 meters/second) to give us the speed of light, the "fudge factor" in equations like E=mc^2. The same is true of Planck's constant (h), Newton's constant of gravitation (G), the charge of the electron (e), etc. The only way to eliminate these fudge factors is to use a system of units in which these constants are pure numbers like one or pi. A goal of physics then is to calculate all the dimensionless ratios from basic principles. For example, the fine structure constant e^2/(2*pi*h*c) is approximately 1/137. A theory of everything would explain why this number is pecisely what it is. It would also explain why the ratio of the muon mass to the electron mass is about 207. This goal is still far off, but is because we do not yet have a complete theory, not because of any flaw in mathematics or its application to the real world. |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: myoarin-ga on 28 Dec 2005 13:32 PST |
Azdoug, Perhaps this text will help you: http://www.pupress.princeton.edu/chapters/i7789.html The Ancients consider mathematics to be an Art; it is entirely a human development (we think), and, of course, it does everything perfectly that humans want it to do and even does a remarkably fine job of handling many things in the real world: eliptic orbits, etc., etc., but not everything. Kind of makes one accept IT or the Enlightment's concept of "the Great Clockmaker." Maybe He added a few quirks to keep us in our place and not let us have the godly knowledge of the theory of everything. |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: azdoug-ga on 28 Dec 2005 14:19 PST |
Math is perfect? Explain a singularity. The way I see it, math was invented by humans. It doesn't occur naturally in nature. Humans aren't perfect, and can't they make a system that perfectly describes nature. If we had, there would be no need for constants. If the early mathematicians had taken a different route, what system would we be using today? It wouldn't be mathematics as we currently know it. It would be something else... This 'something else' might do a better job modeling the physical world. |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: pinkfreud-ga on 28 Dec 2005 14:23 PST |
Surely, if it were true that "math was invented by humans," pi would be precisely equal to three. |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: azdoug-ga on 29 Dec 2005 06:28 PST |
We define Pi as the relationship of a circle's diameter to it's circumference. Pi = C/d. For any given circle, C and d are measureable quantities. Draw any circle, measure it's C and d, divide the two, and you get Pi. whoop-de-doo. Humans did this. Same for radians. We define a radian as the ratio between a circle's arc length and it's radius. If the two measureable quantities are the same, the angle creating that arc is 1 radian. Once again, whoop-de-doo. Humans did this also. My point is the "WE DEFINE" part. We chose to interpret naturally occurring things in certain ways. We chose to divide C by d - we chose to compare the arc length with a radius - we chose to measure gravity - Max Planck chose to derive "a formula that agreed very closely with experimental data, but the formula only made sense if he assumed that the energy of a vibrating molecule was quantized--that is, it could only take on certain values." I'm thinking there are 2 possible reasons why we don't have a successful "LAW of Everything". 1. From the very beginning, we chose the wrong units for any given measureable thing. 2. From the very beginning, we erroneously tried to use man-made mathematics to model/describe/analyze God-made nature. Or maybe it's a little of both. The use of constants prove #1 is a correct statement, and singularities prove #2 is also a correct statement. |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: brix24-ga on 30 Dec 2005 05:32 PST |
Regarding "We define Pi as the relationship of a circle's diameter to it's circumference. Pi = C/d. For any given circle, C and d are measureable quantities. Draw any circle, measure it's C and d, divide the two, and you get Pi. whoop-de-doo. Humans did this." But if we define pi as C*d or C+d or C-d or d-C, we don't get a constant. (Of course, there's d/C, which is also a constant.). We (except mathematicians and programmers) don't have freedom to define whatever we please as a constant; we are limited by what's out there already. |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: azdoug-ga on 30 Dec 2005 05:59 PST |
Well, I've found what I need. Planck Units (God's Units) are an attempt to find the 'real' units of length, time, force, power, temperature, density, etc. When incorporated into various equations and formulas, these units negate the need for constants. Essentially, all the previously used constants become 1 because we're using the right units - the real units of time, length, temperature, etc... Here's some more info about Plank Units: http://en.wikipedia.org/wiki/Planck_units Fascinating stuff! |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: myoarin-ga on 31 Dec 2005 07:21 PST |
Hey, that is great, Azdoug! Glad you found it. I wonder if anyone has found a way to use "God's units" in practice - software that digests those equations. If anyone was questioning my claim that Mathematics is perfect - as a human "art" - I meant that it works for problems defined by humans - which are defined by the constraints of the art of mathematics. That is (the Greek word escapes me) circular - except for those darned circles and pi, which Planck Units seem to have to deal with. But, again, the perfect circle is a human concept ... Cheers, Myoarin |
Subject:
Re: Flaws of mathematics in modeling the 'real world'
From: kottekoe-ga on 31 Dec 2005 08:54 PST |
The so called "Planck's Units" are just one of the many possible ways to do as I mentioned above, i.e. work in a system of units in which each of the fundamental constants is a pure number, conveniently chosen to be 1 or pi or something similar. For example, systems like this universally set the speed of light to be one, but there are choices about the others. None of this matters. The equations are simpler because we eliminate the constants. So, for example, the equivalence of mass and energy is written E=m instead of E=mc^2, since c is equal to 1. Again, the only thing that matters is the values of the dimensionless ratios (numbers without units). For example, the fine structure constant that I mentioned earlier is a measure of the strength of the electromagnetic interaction between particles with a single electric charge. It is approximately equal to 1/137. The similar dimensionless constant for the gravitational interaction of particles the mass of the proton is many-many orders of magnitude smaller. It doesn't matter whether you consider this to be that the gravitational constant G is very small or that the mass of the proton is very small. You are free to choose units in which the mass of the proton is one or G is one, the physics is the same. |
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