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The Methodological Value of Coincidences: Further Remarks on Dark Matter and the Astrophysical Warrant for General Relativity
Dark Matter General Relativity Evidence Methodology Theory Choice
2008/4/21
This paper compares four techniques for measuring the masses of galaxies and larger astrophysical systems from their dynamics. The apparent agreement of these techniques is sometimes invoked as reason...
The relativity of inertia and reality of nothing
relativity Mach's principle Einstein inertia
2008/4/21
The determination of inertia by matter is looked at in general relativity, where inertia can be represented by affine or projective structure. The matter tensor T seems to underdetermine affine struct...
Relativity, Special and General represent Time as a linear dimension in a 4-diemnsional spacetime. However, one of the important ways in which time can be distinguished from space is through the exami...
In this paper I try to sort out a tangle of issues regarding time, inertia, proper time and the so-called “clock hypothesis” raised by Harvey Brown's discussion of them in his recent book, Physical Re...
Twin Paradox and the Logical Foundation of Relativity Theory
twin paradox relativity theory accelerated observers
2008/4/21
We study the foundation of space-time theory in the framework of first-order logic (FOL). Since the foundation of mathematics has been successfully carried through (via set theory) in FOL, it is not e...
Why is Time Frame-dependent in Relativity? Minkowski's spacetime as a Kantian 'condition of possibility' for relativistic calculations
Special relativity Ontology
2008/4/18
The kinematic consequences of special relativity can be expressed in three-dimensional language. Remarkably, this does not mean that, for making special relativity operational, positing a three-dimens...
Constructivists, such as Harvey Brown, urge that the geometry of Newtonian and special relativistic spacetimes results from the properties of matter. Whatever this may mean, it commits constructivists...
Why special relativity should not be a template for a fundamental reformulation of quantum mechanics
Clifton-Bub-Halvorson theorem principle vs constructive theories
2008/4/15
In a comparison of the principles of special relativity and of quantum mechanics, the former theory is marked by its relative economy and apparent explanatory simplicity. A number of theorists have th...
On the logical consistency of special relativity theory and non-Euclidean geometries: Platonism versus formalism
relativistic determinism relativity of simultaneity
2008/4/15
The Lorentz transformations in the theory of special relativity~(SR) lead to a little-investigated phenomenon called relativistic determinism. When two relatively moving inertial observers A and B coi...
Null Cones in Lorentz-Covariant General Relativity
bimetric causality principle null cones
2008/4/15
The oft-neglected issue of the causal structure in the flat spacetime approach to Einstein's theory of gravity is considered. Consistency requires that the flat metric's null cone be respected, but th...
Modal Interpretations of Quantum Mechanics and Relativity: A Reconsideration
Modal interpretations relativity Lorentz invariance
2008/4/15
Two of the main interpretative problems in quantum mechanics are the so-called measurement problem and the question of the compatibility of quantum mechanics with relativity theory. Modal interpretati...
A proof is given, at a greater level of generality than previous 'no-go' theorems, of the impossibility of formulating a modal interpretation that exhibits 'serious' Lorentz invariance at the fundamen...
Michelson, FitzGerald and Lorentz: the origins of relativity revisited
relativity FitzGerald length contraction Bell
2008/4/15
It is argued that an unheralded moment marking the beginnings of relativity theory occurred in 1889, when G. F. FitzGerald, no
doubt with the puzzling 1887 Michelson-Morley experiment fresh in mind, ...
Lorentz's theory and special relativity are completely identical
Lorentz's theory special relativity
2008/4/15
Withdrawn by the author! The main content of this paper has been moved into "Szabó, László E., Does special relativity theory tell us anything new about space and time?
Here we briefly review the concept of "prediction" within the context of classical relativity theory. We prove a theorem asserting that one may predict one's own future only in a closed universe. We t...