Classic gravitational tests of post-Einsteinian theories

With the help of PPN formalism, gravity theories are confronted with the results of experiments in the solar system. The γ parameter in this formalism highlights the light deflection and the light delay. By calculations according to PPN, light deflection … Read More

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Blockchain and the causal tree of reference

In a previous article, Philosophy of Blockchain Technology – Ontologies, (Sfetcu 2019) I talked about applying Paul Ricœur’s narrative theory in developing an ontology of blockchain technology. In this section I intend to highlight the idea of an analogy between … Read More

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Testing the relativistic theories of gravity

Clifford M. Will describes, in Theory and Experiment in Gravitational Physics, [1] the emergence of a new era for general relativity, testing and checking at very high levels of accuracy. In 1959, scientists at Lincoln Laboratories in Massachusetts bombarded the … Read More

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Evaluation of post-Einsteinian gravitational theories through parameterized post-Newtonian formalism

Proliferation of post-Einsteinian gravitational theories Right after the elaboration and success of general relativity (GR), alternative theories for gravity began to appear, which can fall into four broad categories: [1] Bifurcated theories (with the Lakatosian[2] hard core identical or very … Read More

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Causal Theory of Reference of Michael Devitt

Michael Devitt develops a hybrid causal theory of non-empty proper names and certain singular terms that semantically resemble them. He considers that the use of a name designates an object not by virtue of the different information we know about … Read More

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Heuristics of the General Relativity

The essential principle of coordination in GR is the principle of equivalence, including a negative heuristic. The argument “is not that all reference frames are equivalent, but that the classical coordination of uniform motion in a straight line with the … Read More

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Epistemology of General Relativity

Early philosophical interpretations of the general theory of relativity are very diverse, each trying to identify Einstein as a follower of that philosophy. Mach’s supporters highlighted Einstein’s attempt to implement a “relativization of inertia” in general relativity (GR), and his … Read More

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