Paul Ehrenfest: The Genesis of the Adiabatic Hypothesis, 1911–1914
... usual rigor by means of the weight function he had introduced in 1911: He proved that the
necessary and sufficient condition to guarantee compatibility between BOLTZMANN’s
methods and quantum theory was the so-called “δG-condition,” whose meaning we will
analyze in detail. This condition, as EHRENFE ...
Poincaré`s Light - Séminaire Poincaré
... It seems reasonable to assume that Poincaré was here projecting the reasons for
his own predilection. The foreword to his optical lectures begins with: “Optics is
the most advanced part of physics; the theory of undulations forms a whole that
is most satisfactory to the mind.” Being a mathematician ...
Energy and Mass in Relativity Theory (321 Pages)
... of the northern lights, have by now been greatly supplemented by satellite measurements (see, for example,!"l). These measurements show that the magnetic
field of the earth has the form of a magnetic dipole up
to distances on the order of 6R + "" 30 000 km. This
indeed gives the best presently avail ...
Einstein`s Greatest Mistake - Free
... In the nineteenth century, James Maxwell formulated a set of vector equations
based on the experimental work of Coulomb, Faraday, Ampere, and others who
unified electric and magnetic effects. They demonstrated, among other things,
that electromagnetic waves exist and travel at a finite velocity in f ...
Clifford M. Will Theory and Experiment in Gravitational Physics 1993
... viable alternative to general relativity. Its very existence and agreement
with experimental results demonstrated that general relativity was not a
unique theory of gravity. Many even preferred it over general relativity on
aesthetic and" theoretical grounds. At the very least, it showed that discus ...
The Einstein–Vlasov System/Kinetic Theory H˚ akan Andr´ easson
... matter in comparison to fluid models, although interest has increased in recent years. From a
mathematical point of view there are fundamental advantages to using a kinetic description. In
non-curved spacetimes kinetic theory has been studied intensively as a mathematical subject during
several deca ...
Einstein`s quantum theory of the monatomic ideal gas: non
... a necessary complement to the other two.10
Einstein followed an approach in this paper that was not based only on statistical considerations and that was closer to thermodynamics. He tried to ﬁnd
general conditions that any theory of the ideal gas would have to satisfy, mainly
by establishing and ex ...
Paper 30 - Free-Energy Devices
... Re-emergence of the Aether
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 t ...
The Einstein Hoax
... Einstein and Kottler, and appears to have been overlooked by recent writers." -- Harry
"All this was maintained by Poincare and others long before the time of Einstein, and one does
injustice to truth in ascribing the discovery to him." -- Charles Nordmann
"[Einstein's] paper 'Zur Elektrodyn ...
physics before and after einstein
... his independence of thought and slightly irreverent demeanour, and were by that time
determined to punish him for that.2
Thus it happened that the man who was to be arguably the greatest physicist of his
century was denied access to an academic career. The graduates who were chosen are
known today e ...
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 ...
2 Spacetime and General - Farmingdale State College
... Because of the minus sign in front of (dx)2, the equation is not the equation of a circle
(x2 + y2 = r2), but is rather the equation of a hyperbola, x 2 y2 = constant.
The interval between two points in Euclidean geometry is represented by the
hypotenuse of a right triangle and is given by the Pyt ...
Physics and Philosophy Meet: the Strange Case of Poincaré
... devoted to the electromagnetic theory of light, had deduced from the theory that light
exerts a pressure on a body upon which it falls, and that in consequence light rays
falling upon just one side of a body might set the latter in motion. In the context of
Maxwell’s general theory--according to whi ...
... motion of the reference frame. He examined Maxwell’s ideas as applied to a frame-ofreference experiment that required only a magnet and a closed coil of wire. Einstein
used a method called a thought experiment, which is an experiment carried out in the
imagination but not actually performed. A thoug ...
33 Special Relativity - Farmingdale State College
... frame of reference or an inertial coordinate system. Newton’s first law defines the
inertial frame of reference. That is, when F = 0, and the body is either at rest or
moving uniformly in a straight line, then the body is in an inertial frame. There are
an infinite number of inertial frames and Newt ...
Derivation of the Maxwell`s Equations Based on a Continuum
... difficulties in the classical electrodynamics, e.g., the inadequacy of Liéenard-Wiechert potentials [5, 6, 7]. New
theories of electromagnetic phenomena may overcome
Thirdly, there exists some divergence problems in
quantum electrodynamics. In Dirac’s words, ’I must
say that I ...
... To summarize the situation. There are proponents of three viewpoints. One viewpoint is that the field
lines do not rotate, one that they do rotate, and another, which is the one adopted by mainstream
physicists, is that this dispute is meaningless, that there is no such thing as lines of force, and ...
Contents - Perimeter Institute
... theory of general relativity says the satellite clocks also run
faster than those on Earth by 5.2 x 10-10 s per second because
Earth’s gravity is weaker at the satellites’ altitude.
a) How much slower does a GPS clock run each day due to
special relativity? How much faster does it run each day
due t ...
ppt - Center for Advanced Studies of Accelerators CASA
... Mon 17 June 0900-1200 Lecture 11 ‘Nonlinear Dynamics, Resonance Theory’
Mon 17 June 1330-1630 Lecture 12 ‘X-ray Sources/ FELs’
Tue 18 June 0900-1200 Lecture 13 ‘Nonlinear Dynamics, Chaos’
Tue 18 June 1330-1630 Lecture 14 ‘Statistical Effects’
Wed 19 June 0900-1200 Lecture 15 ‘Cooling Theory’
Wed 19 ...
Physics as Spacetime Geometry
... space), which as such would be absolute (the same for all observers). As a space
constitutes a class of simultaneous events (the space points at a given moment),
a single (absolute) space implies absolute simultaneity and therefore absolute
time as well. Hence a three-dimensional world allows only a ...
(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 ...
Einstein_Discover (Chicago refs)
... 1901, Einstein had become convinced that the phenomena of electrodynamics did not support the
existence of such a state of rest.
The task Einstein now faced was to reconfigure electrodynamical theory so that it no
longer needed an ether state of rest. That is, the theory was to be brought into confo ...
The Project Gutenberg eBook #36276: The Meaning of Relativity
... By the aid of speech different individuals can, to a certain
extent, compare their experiences. In this way it is shown that
certain sense perceptions of different individuals correspond to
each other, while for other sense perceptions no such correspondence can be established. We are accustomed to ...
Criticism of the theory of relativity
Criticism of the theory of relativity of Albert Einstein was mainly expressed in the early years after its publication in the early twentieth century, on scientific, pseudoscientific, philosophical, or ideological bases. Though some of these criticisms had the support of reputable scientists, Einstein's theory of relativity is now recognized as self-consistent, in accordance with many experiments, and moreover serves as the basis of many successful theories such as quantum electrodynamics.Reasons for criticism of the theory of relativity have included alternative theories, rejection of the abstract-mathematical method, and alleged errors due to misunderstandings of the theory. Antisemitic objections to Einstein's Jewish heritage also occasionally played a role in these objections. There are still some critics of relativity today (sometimes called ""anti-relativists""), but their opinions are not shared by the scientific community.