Paul Ehrenfest: The Genesis of the Adiabatic Hypothesis, 1911–1914

... particular, we will examine the circumstances that led him to postpone the publication of his considerations on the adiabatic hypothesis for almost one year. In 1914 EHRENFEST posed another question of extreme importance to those who ascribed great value to the methods of statistical mechanics: In w ...

... particular, we will examine the circumstances that led him to postpone the publication of his considerations on the adiabatic hypothesis for almost one year. In 1914 EHRENFEST posed another question of extreme importance to those who ascribed great value to the methods of statistical mechanics: In w ...

Lecture Notes 18.5: Lorentz Transformation of EM Fields, the EM

... transformations of E B in going from one IRF(S) to another IRF(S') ??? In the immediately preceding lecture notes, the reader may have noticed some tacit / implicit assumptions were made, which we now make explicit: 1) Electric charge q (like c, the speed of light) is a Lorentz invariant scalar qu ...

... transformations of E B in going from one IRF(S) to another IRF(S') ??? In the immediately preceding lecture notes, the reader may have noticed some tacit / implicit assumptions were made, which we now make explicit: 1) Electric charge q (like c, the speed of light) is a Lorentz invariant scalar qu ...

Clifford M. Will Theory and Experiment in Gravitational Physics 1993

... Theory and Experiment in Gravitational Physics plate of the star field around the location of the radio source 3C48. Although they expected to find a cluster of galaxies, what they saw at the precise location of the radio source was an object that had a decidedly stellar appearance, an unusual spec ...

... Theory and Experiment in Gravitational Physics plate of the star field around the location of the radio source 3C48. Although they expected to find a cluster of galaxies, what they saw at the precise location of the radio source was an object that had a decidedly stellar appearance, an unusual spec ...

Einstein`s Greatest Mistake - Free

... slit, it moves sideways, in general, and lands on the screen off-center. We say that it behaves like a wave when it veers off-center, and then it reverts to being a particle when it hits the screen. Similarly, if we fire a photon (which we regard as a wave) through a narrow slit, it also moves later ...

... slit, it moves sideways, in general, and lands on the screen off-center. We say that it behaves like a wave when it veers off-center, and then it reverts to being a particle when it hits the screen. Similarly, if we fire a photon (which we regard as a wave) through a narrow slit, it also moves later ...

The Einstein Hoax

... Collected Papers of Albert Einstein, Princeton University Press). Where he failed was in his French test; the Swiss were very picky about French, and although it seems Einstein's French essay was very good, it was not good enough to satisfy the high standards of the picky French professors. Further ...

... Collected Papers of Albert Einstein, Princeton University Press). Where he failed was in his French test; the Swiss were very picky about French, and although it seems Einstein's French essay was very good, it was not good enough to satisfy the high standards of the picky French professors. Further ...

Lorentz force velocimetry based on time-of-flight

... in turn, gives a velocity ULFF = d / T p. The present study compares the correlation time with the characteristic time of the mean flow through the calibration factor T p / Tb. This is equivalent to the comparison between ULFF and Ub. Although the distance d can be chosen arbitrarily, it is convenie ...

... in turn, gives a velocity ULFF = d / T p. The present study compares the correlation time with the characteristic time of the mean flow through the calibration factor T p / Tb. This is equivalent to the comparison between ULFF and Ub. Although the distance d can be chosen arbitrarily, it is convenie ...

physics before and after einstein

... chemistry and biology (but not in mathematics and physics). He was advised to attend the cantonal school at Aarau for one year, and then try again to get into the Federal Institute of Technology, which he did, getting very good marks except in geography and drawing (both artistic and technical). In ...

... chemistry and biology (but not in mathematics and physics). He was advised to attend the cantonal school at Aarau for one year, and then try again to get into the Federal Institute of Technology, which he did, getting very good marks except in geography and drawing (both artistic and technical). In ...

(Very) basic introduction to special relativity

... It may seem natural to simply consider the time as another coordinate and use the Pythagorean theorem to compute the “distance” between events. Unfortunately this is not very useful because the laws of physics are not invariant under the action of SO(4, R). For example, if we write Maxwell equations ...

... It may seem natural to simply consider the time as another coordinate and use the Pythagorean theorem to compute the “distance” between events. Unfortunately this is not very useful because the laws of physics are not invariant under the action of SO(4, R). For example, if we write Maxwell equations ...

- Macquarie University ResearchOnline

... allowed work to commence on the effects of a continuous current of electricity and later into the electromagnetic nature of this current. This will be followed by the work on electrical discharges in evacuated glass tubes which ultimately led to the discovery of the particle nature of cathode rays. ...

... allowed work to commence on the effects of a continuous current of electricity and later into the electromagnetic nature of this current. This will be followed by the work on electrical discharges in evacuated glass tubes which ultimately led to the discovery of the particle nature of cathode rays. ...

Einstein_Discover (Chicago refs)

... possible because of the thoroughness of his preparation. It showed him that nothing else would work. A real understanding of how Einstein discovered requires a fuller appreciation of these lengthy investigations, in all their complexity. Our efforts to gain this understanding face a formidable obsta ...

... possible because of the thoroughness of his preparation. It showed him that nothing else would work. A real understanding of how Einstein discovered requires a fuller appreciation of these lengthy investigations, in all their complexity. Our efforts to gain this understanding face a formidable obsta ...

Poincaré`s Light - Séminaire Poincaré

... the molecular interaction could be adjusted so that his ether would be rigid with regard to optical vibrations and yet liquid with regard to the penetration of ordinary matter. Fresnel’s description of his ether was mostly qualitative: he did not derive equations of motion at the molecular or at the ...

... the molecular interaction could be adjusted so that his ether would be rigid with regard to optical vibrations and yet liquid with regard to the penetration of ordinary matter. Fresnel’s description of his ether was mostly qualitative: he did not derive equations of motion at the molecular or at the ...

The Confrontation between General Relativity and Experiment

... experiments were carried out primarily to search for a “fifth force” (see Sec. 2.3), but their null results also constituted tests of WEP. In the “free-fall Galileo experiment” performed at the University of Colorado, the relative free-fall acceleration of two bodies made of uranium and copper was ...

... experiments were carried out primarily to search for a “fifth force” (see Sec. 2.3), but their null results also constituted tests of WEP. In the “free-fall Galileo experiment” performed at the University of Colorado, the relative free-fall acceleration of two bodies made of uranium and copper was ...

Relativity made relatively easy

... 18.2 Proper time and time dilation . . . . . . . . . . . . . . . . . . . . . . . . . 449 18.3 Lorentz contraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 18.4 Doppler effect, addition of velocities . . . . . . . . . . . . . . . . . . . . . 452 19 Appendix 2. The field of an ...

... 18.2 Proper time and time dilation . . . . . . . . . . . . . . . . . . . . . . . . . 449 18.3 Lorentz contraction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 450 18.4 Doppler effect, addition of velocities . . . . . . . . . . . . . . . . . . . . . 452 19 Appendix 2. The field of an ...

28 Copyright A. Steane, Oxford University 2010, 2011

... It is a common practice to set c = 1 for convenience when doing mathematical manipulations in special relativity. Then one can leave c out of the equations, which reduces clutter and can make things easier. When you need to calculate a specific number for comparison with experiment, you must either ...

... It is a common practice to set c = 1 for convenience when doing mathematical manipulations in special relativity. Then one can leave c out of the equations, which reduces clutter and can make things easier. When you need to calculate a specific number for comparison with experiment, you must either ...

Unipolar Induction

... the magnet, any more than the rays of light which emanate from the sun are supposed to revolve with the sun. The magnet may even, in certain cases (3097), be considered as revolving amongst its own forces and producing a full electric effect, sensible at the galvanometer.” (Section 3090) The reader ...

... the magnet, any more than the rays of light which emanate from the sun are supposed to revolve with the sun. The magnet may even, in certain cases (3097), be considered as revolving amongst its own forces and producing a full electric effect, sensible at the galvanometer.” (Section 3090) The reader ...

Physics 252: Frames of Reference and Newton`s Laws

... suggest a possible way to measure the speed of light. The idea is to have two people far away from each other, with covered lanterns. One uncovers his lantern, then the other immediately uncovers his on seeing the light from the first. This routine is to be practiced with the two close together, so ...

... suggest a possible way to measure the speed of light. The idea is to have two people far away from each other, with covered lanterns. One uncovers his lantern, then the other immediately uncovers his on seeing the light from the first. This routine is to be practiced with the two close together, so ...

Paper 30 - Free-Energy Devices

... The aether concept has been around for some time, it was first put forward in the 18th century in order to explain the wave nature of light. This was later abandoned because certain experiments seemed to contradict this idea. The chief of these being the ‘null’ result of the Michelson-Morley experim ...

... The aether concept has been around for some time, it was first put forward in the 18th century in order to explain the wave nature of light. This was later abandoned because certain experiments seemed to contradict this idea. The chief of these being the ‘null’ result of the Michelson-Morley experim ...

The Lorentz transformation

... manipulations in special relativity. Then one can leave c out of the equations, which reduces clutter and can make things easier. When you need to calculate a specific number for comparison with experiment, you must either put all the c’s back into your final equations, or remember that the choice c ...

... manipulations in special relativity. Then one can leave c out of the equations, which reduces clutter and can make things easier. When you need to calculate a specific number for comparison with experiment, you must either put all the c’s back into your final equations, or remember that the choice c ...

The mechanical advantage of the magnetosphere

... of the solar wind and mediated by Birkeland (magneticfield-aligned) currents between the ionosphere and the outer magnetosphere, in particular the so-called region 1 currents (Iijima and Potemra, 1976). Siscoe et al. (2002) propose that, in the limit of very strong solar wind interaction (transpolar ...

... of the solar wind and mediated by Birkeland (magneticfield-aligned) currents between the ionosphere and the outer magnetosphere, in particular the so-called region 1 currents (Iijima and Potemra, 1976). Siscoe et al. (2002) propose that, in the limit of very strong solar wind interaction (transpolar ...

Chapter_2 - Experimental Elementary Particle Physics Group

... Based on the general identification of the invariant magnitude (proper time) of a timelike interval with quantum phase along that interval, it follows that all physical processes and characteristic sequences of events will evolve in proportion to this quantity. The name "proper time" is appropriate ...

... Based on the general identification of the invariant magnitude (proper time) of a timelike interval with quantum phase along that interval, it follows that all physical processes and characteristic sequences of events will evolve in proportion to this quantity. The name "proper time" is appropriate ...

Begin Adventure / How to Break the Light Barrier by A.D. 2079 (third

... This edition, the third, has undergone a subtle name change, going from "A.D. 2070" in the title to A.D. 2079 as the timeline is fine-tuned. Because of the almost universal failure to recognize the distinction between physical (reality-based, dynamical) and visual (appearance-based, kinematical) var ...

... This edition, the third, has undergone a subtle name change, going from "A.D. 2070" in the title to A.D. 2079 as the timeline is fine-tuned. Because of the almost universal failure to recognize the distinction between physical (reality-based, dynamical) and visual (appearance-based, kinematical) var ...

(DOC, Unknown) - Natural Philosophy Alliance

... systems in relative uniform motion The alternative coordinate transformation between two coordinate systems which are in uniform relative motion with a uniform velocity say V would be derived firstly graphically and then the same would be derived using the Maxwell’s field equations. Consider the sim ...

... systems in relative uniform motion The alternative coordinate transformation between two coordinate systems which are in uniform relative motion with a uniform velocity say V would be derived firstly graphically and then the same would be derived using the Maxwell’s field equations. Consider the sim ...

The Four Kinds of Electric Charge

... two vitreously electrified bodies would repel each other and that a vitreously electrified body would attract a resinously electrified body but he did not expect two resinously electrified bodies to repel each other- - - ”. Franklin of course did not understand the distinction between resinous charg ...

... two vitreously electrified bodies would repel each other and that a vitreously electrified body would attract a resinously electrified body but he did not expect two resinously electrified bodies to repel each other- - - ”. Franklin of course did not understand the distinction between resinous charg ...

ppt - UZH-Particle Physics at CERN

... There are models predicting non-linear electric filed in heavily irradiated silicon: the main idea that the thermally generated electrons and holes, while drift towards the electrodes, are trapped by the trapping centers (induced by the irradiation damage) in the silicon bulk and form non-uniform sp ...

... There are models predicting non-linear electric filed in heavily irradiated silicon: the main idea that the thermally generated electrons and holes, while drift towards the electrodes, are trapped by the trapping centers (induced by the irradiation damage) in the silicon bulk and form non-uniform sp ...

Many-Minds Relativity and Quantum Mechanics

... Would it not be more disturbing if they came to different conclusions? In any case, this was the upshot of Einstein’s special relativity based on the assumption that all observers will agree on the speed of light. This is like if in politics a rightist and leftist came to agree on something. Would t ...

... Would it not be more disturbing if they came to different conclusions? In any case, this was the upshot of Einstein’s special relativity based on the assumption that all observers will agree on the speed of light. This is like if in politics a rightist and leftist came to agree on something. Would t ...

# Lorentz ether theory

What is now often called Lorentz ether theory (LET) has its roots in Hendrik Lorentz's ""theory of electrons"", which was the final point in the development of the classical aether theories at the end of the 19th and at the beginning of the 20th century.Lorentz's initial theory created in 1892 and 1895 was based on a completely motionless aether. It explained the failure of the negative aether drift experiments to first order in v/c by introducing an auxiliary variable called ""local time"" for connecting systems at rest and in motion in the aether. In addition, the negative result of the Michelson–Morley experiment led to the introduction of the hypothesis of length contraction in 1892. However, other experiments also produced negative results and (guided by Henri Poincaré's principle of relativity) Lorentz tried in 1899 and 1904 to expand his theory to all orders in v/c by introducing the Lorentz transformation. In addition, he assumed that also non-electromagnetic forces (if they exist) transform like electric forces. However, Lorentz's expression for charge density and current were incorrect, so his theory did not fully exclude the possibility of detecting the aether. Eventually, it was Henri Poincaré who in 1905 corrected the errors in Lorentz's paper and actually incorporated non-electromagnetic forces (including gravitation) within the theory, which he called ""The New Mechanics"". Many aspects of Lorentz's theory were incorporated into special relativity (SR) with the works of Albert Einstein and Hermann Minkowski.Today LET is often treated as some sort of ""Lorentzian"" or ""neo-Lorentzian"" interpretation of special relativity. The introduction of length contraction and time dilation for all phenomena in a ""preferred"" frame of reference, which plays the role of Lorentz's immobile aether, leads to the complete Lorentz transformation (see the Robertson–Mansouri–Sexl test theory as an example). Because the same mathematical formalism occurs in both, it is not possible to distinguish between LET and SR by experiment. However, in LET the existence of an undetectable aether is assumed and the validity of the relativity principle seems to be only coincidental, which is one reason why SR is commonly preferred over LET.