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Physics Literature Collection (295 Books)


The World Public Library Physics Collection contains 263 conversations regarding the nature of physics.

 
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The American Journal of Science.

By: . James

Physics Literature

Excerpt: The discovery of the aberration of light was. won followed by an explanation according to the emission theory. The effect was attributed to a simple composition of the velocity of light with the velocity of the earth in its orbit. The difficulties in this apparently sufficient explanation were overlooked until after an explanation on the undulatory theory of light. This new explanation was at first almost as simple as t e former. But it failed to account for the...

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Random Reality

By: Marcus Chown

Physics Literature

Excerpt: Space and the material world could be created out of nothing but noise. That's the startling conclusion of a new theory that attempts to explain the stu of reality, as Marcus Chown reports If you could lift a corner of the veil that shrouds reality, what would you see beneath? Nothing but randomness, say two Australian physicists. According to Reginald Cahill and Christopher Klinger of Flinders University in Adelaide, space and time and all the objects around us...

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Synthetic Quantum Systems

By: Reginald T Cahill

Physics Literature

Abstract: So far proposed quantum computers use fragile and environmentally sensitive natural quantum systems. Here we explore the new notion that synthetic quantum systems suitable for quantum computation may be fabricated from smart nanostructures using topological excitations of a stochastic neural-type network that can mimic natural quantum systems. These developments are a technological application of process physics which is an information theory of reality in whic...

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Chance Is Everything

By: Mark Steene

Physics Literature

Excerpt: Relativity - Albert Einstein's special theory of relativity (1905) and the general theory of relativity (1915) deal with the most fundamental ideas we use to describe natural phenomena such as time, space, mass, motion and gravity. One of the most widely known aspects of relativity is Einstein's formula E = mc2, where energy equals mass times the speed of light squared. Other implications of his theories include the space-time continuum, where the universe is th...

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Michelson-Morley Experiments Revisited and the Cosmic Background R...

By: Reginald T. Cahill

Physics Literature

Excerpt: New information-theoretic physics has given rise to a quantum-foam description of space relative to which absolute motion is meaningful and measurable. In this new physics Michelson interferometers operating in gas mode are capable of revealing absolute motion. We analyze the old results from gas-mode Michelson interferometer experiments which always showed small but significant effects. Analysis of the Illingworth (1927) experimental data, after correcting for ...

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Classical and Quantumchaos

By: Roberto Artuso

Physics Literature

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Classical Electrodynamics for Undergraduates

By: Professor John W. Norbury

Physics Literature

Excerpt: Chapter 1 - Matrices: 1.1 Einstein Summation Convention; Even though we shall not study vectors until chapter 2, we will introduce simple vectors now so that we can more easily understand the Einstein summation convention. We are often used to writing vectors in terms of unit basis vectors as ...

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Classical Mechanics

By: Haret C. Rosu

Physics Literature

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Continuum Mechanics

By: George Backus

Physics Literature

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Diffuse Matter in the Universe Subtitle Edition

By: Michael A. Dopita

Physics Literature

Excerpt: What is Diffuse Matter? 1 // 1.1 Phases 5 // 1.2 Observability 7 // 2. Line Emission Processes 11 // 2.1 Atomic Spectra 11 // 2.1.1 Resonance Lines. 11 // 2.1.2 Pure Recombination Lines. 14 // 2.1.3 The Spectroscopic Notation 18 // 2.1.4 Intercombination and Forbidden Lines 22 // 2.2 Molecular Spectra 23 // 2.2.1 Rotating Diatomic Molecules 24 // 2.2.2 Rotational Wave function Symmetry 26 // 2.2.3 Rotating Diatomic Molecules with Identical nuclei 29 ...

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Doing Physics with Quaternions

By: Douglas B. Sweetser

Physics Literature

Excerpt: Unifying Two Views of Events: An experimentalist collects events about a physical system. A theorists builds a model to describe what patterns of events within a system might generate the experimentalist?s data set. With hard work and luck, the two will agree! Events are handled mathematically as 4-vectors. They can be added or subtracted from another, or multiplied by a scalar. Nothing else can be done. A theorist can import very powerful tools to generate patt...

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General Remarks of Celestial Mechanics and Contains a Large Number...

Physics Literature

Excerpt: General Remarks. First we want to refer to the book of A. Wintner [ 3 ] which deals with the analytic aspects of celestial mechanics and contains a large number of references to old and new literature. Secondly Siegel's book [2] contains many topics related to Birkhoffs book and is a very valuable source of information. Finally the second part of Nemytskii's and Stepanov's book [ 11 deals with the abstract aspects of dynamical systems and has much contact with C...

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Chapter I Physical Aspects of Dynamical Systems

Physics Literature

Excerpt: Introductory remarks. In dynamics we deal with physical systems whose state at a time t is completely specified by the values of n real variables accordingly the system is such that the rates of change of these variables, namely merely depend upon the values of the variables themselves, so that the laws of motion can be expressed by means of n differential equations of the first order ...

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Variational Principles and Applications

Physics Literature

Excerpt: An algebraic variation principle. On the formal side of dynamics it has proved to be a fact of fundamental importance that the differential equations can in general be obtained by demanding that the 'variation? of some definite integral vanishes. To make clear the essential nature of the variation method, we may consider an analogous question concerning ordinary maxima and minima. Let there be given n equations in rt unknown quantities.

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Chapter 11 : Formal Aspects of Dynamics

Physics Literature

Excerpt: Introductory remarks. In the preceding chapter it was pointed out that a system of ordinary differential equations was devoid of invariantive characteristics under the general group of one-to-one, analytic transformations provided that attention be confined to the vicinity of any point 4. This was done under the assumption that the functions X, were analytic and did not all vanish at the point x:. The simplest case in which invariantire characteristics can be ex...

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Stability of Periodic Motions

Physics Literature

Excerpt: On the reduction to generalized equilibrium. For motion near equilibrium of a Hamiltonian or, more generally, of a Pfaffian system, the stable case is naturally defined as that in which the multipliers A1, are pure imaginaries, at least provided that there are no linear commensurability relations between these multipliers. In this chapter, however, we shall limit attention to the analogous but somewhat more complicated question of stability for motion near a per...

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Chapter IX the Problem of Three Bodies

Physics Literature

Excerpt: Introductory remarks. The problem of three or more bodies is one of the most celebrated in mathematics, and justly so. Nevertheless until recently the interest in it was directed toward the formal side, and in particular toward the formal solution by means of series. It was Poincal who first obtained brilliant qualitative results, especially with reference to the very special limiting 'restricted problem of three bodies? treated first by Hill. -4s far as the gen...

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Existence of Periodic Iiotions

Physics Literature

Excerpt: Role of the periodic motions. The periodic motions, inclusive of equilibrium, form a very important class of motions of dynamical systems. It will be our principal aim in this chapter to consider various general methods by which the existence of periodic motions may be established. In the next chapter a deeper insight into the distribution of the periodic motions is obtained for dynamical systems with two degrees of freedom. Such systems are of the simplest non-...

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Application of Poincare's Geometric Theorem

Physics Literature

Excerpt: Periodic motions near generalized equilibrium (nz = 1). Poincark's last geometric theorem and modifications thereof yield an additional instrument for establishing the existence of periodic motions. Up to the present time no proper generalization of this theorem to higher dimensions has been found, so that its application remains limited to dynamical systems with two degrees of freedom. It is our aim in this chapter to give some of the fundamental ideas involved...

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General Theory of Dynamical Systems

Physics Literature

Excerpt: Introductory remarks. The final aim of the theory of the motifs a dynamical system must be directed toward the qualitative determination of all possible types of motions of the interrelation of these motions. The present chapter represents an attempt to formulate a theory of this kind.

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