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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...
In the literature on the compatibility between the time of our experience and the time of physics, the special theory of relativity has enjoyed central stage. By bringing into the discussion the gener...
Moderate structural realism about space-time
structural realism structure relations intrinsic properties
2008/4/15
This paper sets out a moderate version of metaphysical structural realism that stands in contrast to both the epistemic structural realism of Worrall and the – radical – ontic structural realism of Fr...
It is argued that Minkowski space-time cannot serve as the deep structure within a ``constructive'' version of the special theory of relativity, contrary to widespread opinion in the philosophical com...
Indeterminism, Asymptotic Reasoning, and Time Irreversibility in Classical Physics.
determinism indeterminism acausality
2008/4/14
A recent proposal of Norton (2003) to show that a simple Newtonian system can exhibit stochastic acausal behavior by giving rise to spontaneous movements of a mass on the dome of a certain shape is ex...
Modern cosmology treats space and time, or rather space-time, as concrete particulars. The General Theory of Relativity combines the distribution of matter and energy with the curvature of space-time....
In present-day physics the fundamental dynamical laws are taken as a time-translation-invariant and time-reversal-invariant one-parameter groups of automorphisms of the underlying mathematical structu...
General Covariance and the Objectivity of Space-Time Point-Events
Hole Argument Space-time Objectivity Physical Individuation
2008/4/14
"The last remnant of physical objectivity of space-time"is disclosed, beyond the Leibniz equivalence, in the case of a continuous family of spatially non-compact models of general relativity. The "phy...
Does special relativity theory tell us anything new about space and time?
special relativity space-time operationalism
2008/4/11
It will be shown that, in comparison with the pre-relativistic Galileo-invariant conceptions, special relativity tells us nothing new about the geometry of spacetime. It simply calls something else "s...
Discussion: Time-Symmetric Quantum Counterfactuals
Time symmetry counterfactuals probability
2008/4/11
There is a trend to consider counterfactuals as invariably
time-asymmetric. Recently, this trend manifested itself in the
controversy about validity of counterfactual application of a
time-symmetri...
Dust, Time, and Symmetry
Gö del Symmetry General Relativity Time
2008/4/11
Two symmetry arguments are discussed, each purporting to show that there is no more room in general relativistic cosmology than in Minkowski spacetime for a preferred division of spacetime into instan...
Comments on Sklar's ``Barbour's Relationist Metric of Time''
Relationalism Relationism Substantivalism Barbour
2008/4/10
Julian Barbour's approach to dynamics is reviewed. With a particular focus on questions of explanation and confirmation, the approach is contrasted with standard formulations of dynamics. This paper e...
Comment on Fritz Rohrlich's "Causality and the Arrow of Classical Time".
Arrow of time extended particles time reversal
2008/4/10
Rohrlich claims that ``the problem of the arrow of time in classical dynamics has been solved". The solution he proposes is based on the equations governing the motion of extended particles. Rohrlich ...
``Branching space-time'' is a simple blend of relativity
and indeterminism. Postulates and definitions
rigorously describe the ``causal order'' relation
between possible point events. The key postu...
Absolute Becoming, Relational Becoming, and the Arrow of Time
Time Spacetime Physics Becoming Minkowski spacetime
2008/4/10
My first and main claim is that physics cannot provide empirical evidence for the objectivity (mind-independence) of absolute becoming, for the simple reason that it must presuppose it, at least to th...