spacetime Archives - MultiMedia

Ontology of Gravitational Singularities

Nicolae Sfetcu — Wed, 02 Feb 2022 21:00:08 +0000

General relativity allows singularities, and we need to understand the ontology of singularities if we want to understand the nature of space and time in the present universe. Although some physicists believe that singularities indicate a failure of general relativity, … Read More

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Gravitational Singularities

Nicolae Sfetcu — Wed, 13 Oct 2021 19:42:58 +0000

Gravitational singularities in general relativity are spacetime locations where the gravitational field becomes infinite. Scalar invariant curves of spacetime include a measure of matter density. Some physicists and philosophers believe that because the density of matter tends to become infinite … Read More

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Paradoxes of causal loops in spacetime

Nicolae Sfetcu — Thu, 17 Sep 2020 04:26:17 +0000

There is, among some scientists and philosophers, the idea that any theory that would allow the time travel would introduce causal issues. These types of temporal paradoxes can be avoided by the Novikov self-consistency principle or by a variation in … Read More

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The Ontology of General Relativity

Nicolae Sfetcu — Mon, 14 Sep 2020 11:49:49 +0000

General Relativity generated various early philosophical interpretations. His adherents have highlighted the “relativization of inertia” and the concept of simultaneity, Kantians and Neo-Kantians have underlined the approach of certain synthetic “intellectual forms” (especially the principle of general covariance, and logical … Read More

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Space, time, and time travel

Nicolae Sfetcu — Mon, 14 Sep 2020 11:38:09 +0000

Newton supported the idea of absolute time, unlike Leibniz, for which time is only a relation between events and cannot be expressed independently, a statement in concordance with the relativity of space-time. Eternalism claims that the past and the future … Read More

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Classical theory of singularities

Nicolae Sfetcu — Thu, 20 Aug 2020 07:47:16 +0000

The singularities from the general relativity resulting by solving Einstein’s equations were and still are the subject of many scientific debates: Are there singularities in spacetime, or not? Big Bang was an initial singularity? If singularities exist, what is their … Read More

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