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| Tags: according, encyclopedia, mcgrawhill, physics, theoretical |
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(Patrick Reany) wrote in message . com...
I have defined physics as the search for the smallest set of rules that completely describes the material world under natural conditions. What you are defining makes no allowance for the difference between behavior and motion at a human manageable level and motion at the behavior and motion at a celestial level.It may have looked clever in 1905 to omit the difference,set Newton up as a puppet and then tear him down but somehow you forgot that Newton was working off the models of Kepler and other astronomers of that era and framed his definitions on their terms and not on his own. You are always betting that nobody will notice that the substance of the investigation of celestial structure and motion for heliocentric modelling relies on the ability to discern the two major motions which condition the definition of what a day is from a geocentric perspective.Of necessity,you have to go back a few hundred years to comprehend the context of absolute time and relative time,modern texts simply rewrite history to favor relativity and the price of destruction of astronomy and all those great minds who sorted and sifted observation for centuries. Even years after the Principia was written, astronomers were still refining the Equation of Time or what amounts to the same thing,the difference between absolute time and relative time. http://www.bodley.ox.ac.uk/cgi-bin/i...x.x.54 .x.336 It takes just a few with courage to recognise that this relativistic nonsense arbitrarily removed the most significant discovery of the modern era,the ability to discern celestial motion based on composite rotations,the diurnal and the annual which reduces to a difference of what constitutes a 'day'.By some sidereal magic we now have the sun partaking in a different motion to the local stars but by simply looking out your window you realise that this is an impossibility. Al says the Universe does'nt care and that may be true for him however at least it will be seen that a few did try to make a difference when future generations look in askance at the relativistic epoch,perhaps it will amount to why,for 80 years,men did not recognise the 3rd rotation for cosmological modelling,why they treated doppler data within the galaxy the same as doppler data arriving from different galaxies (too complex for you at present,Patrick) and all the productive use of observations that have remained dormant for simpleminded rules fashioned from inept interpretation of old manuscripts. Your dead hero displayed the worse traits of humanity,a bungler at best and a cunning salesman at worst,like all footsoldiers in this intellectual holocaust you know no better or don't want to know,that you rely on the rest of humanity to acknowledge the 'genius' when they do not know just how chronic the whole spiel is,perhaps some day they will do the demanding,not the author of spacetime. How does this definition differ essentially from that given below (beyond being obviously shorter)? Is the use of the term "fundamental laws" below really needed or even meaningful technically? How does the definition below get around the vagueness of the meaning of "fundamental laws"? Patrick ---------------------------------------- McGraw-Hill Encyclopedia of Physics McGraw-Hill Publ. Sybil P. Parker, Editor in Chief c. 1983 --- p 1151 --- Theoretical physics The description of natural phenomena in mathematical form. It is impossible to separate theoretical physics from experimental physics, since a complete understanding of nature can be obtained only by the application of both theory and experiment. See PHYSICS. Purposes. There are two main purposes of theoretical physics: the discovery of the fundamental laws of nature and the derivation of conclusions from these fundamental laws. Discovery of fundamental laws. Physicists aim to reduce the number of laws to a minimum to have far as possible a unified theory. When the laws are known, it is possible from any given initial conditions of a physical system to derive the subsequent events in the system. Sometimes, especially in quantum theory, only the probability of various events call be predicted. See NONRELATIVISTIC QUANTUM THEORY; QUANTUM MECHANICS. Conclusions from fundamental laws. The conlusions to be derived from the fundamental laws of nature may be of several different types. 1. Conclusions may be derived in order to test a given theory, particularly a new theory. An example is the derivation of the spectrum of the hydrogen atom from quantum mechanics; the verification of the predictions by accurate meaurements is a good test of quantum mechanics. On rather rare occasions experiment has been found to contradict the predictions of an existing theory, and this has then led to the discovery of important new physical laws. An example is the Michelson-Morley experiment on the constancy of the velocity of light, an experiment which led to special relativity theory. See ATOMiC STRUCTURE AND SPECTRA. 2. Theory may be required for experiments designed to determine physical constants. Most fundamental physical constants cannot be accurately measured directly. Elaborate theories may be required to deduce the constant from indirect experiments. An example is the Millikan oil-drop determination of the electron charge, which requires the knowledge of the motion of small droplets in air as deduced from hydrodynamic theory. See ATOMIC CONSTANTS. 3. Predictions of physical phenomena may be made in order to gain understanding of the structure of the physical world. In this category fall theories of the structure of the atom leading to an understanding of the periodic system of elements, or of the structure of the nucleus in which various models are tested (for example, shell model or collective model). In the same category fall applications of theoretical physics to other sciences, for example, to chemistry (theory of the chemical bond and of the rate of chemical reactions), astronomy (theory of planetary motion, internal constitution, and energy production of stars), or biology. |
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