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Another way of dealing with Loschmidt's paradox is to see the second law as an expression of a set of boundary conditions, in which our universe's time coordinate has a low-entropy starting point: the Big Bang. From this point of view, the arrow of time is determined entirely by the direction that leads away from the Big Bang, and a ...
The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. [1] The concept of an expanding universe was scientifically originated by physicist Alexander Friedmann in 1922 with the mathematical derivation of the Friedmann equations.
The traditional model of the Big Bang. The use of only general relativity to predict what happened in the beginnings of the universe has been heavily criticized, as quantum mechanics becomes a significant factor in the high-energy environment of the earliest stage of the universe, and general relativity on its own fails to make accurate predictions.
According to these models, our present universe emerged from an extremely dense high-temperature state – the Big Bang – roughly 14 billion years ago and has been expanding ever since. [41] Einstein's equations can be generalized by adding a term called the cosmological constant.
Therefore can describe either a Big Bang or a Big Crunch, depending on the sense of Isotropic expansion or contraction of space is not allowed. If the spatial slices were expanding isotropically, then all of the Kasner exponents must be equal, and therefore p j = 1 / ( D − 1 ) {\displaystyle p_{j}=1/(D-1)} to satisfy the first Kasner condition.
Max’s Big Bang Theory spinoff is no longer in its “prenatal stage.” Franchise vets Kevin Sussman (Stuart), Lauren Lapkus (Denise) and Brian Posehn (Bert) have all signed deals to star in the ...
Such an interaction averts the unphysical big bang singularity, replacing it with a bounce at a finite minimum scale factor, before which the Universe was contracting. The rapid expansion immediately after the big bounce explains why the present Universe at largest scales appears spatially flat, homogeneous and isotropic. As the density of the ...
Kaley Cuoco is reflecting on her hairstyle change amid filming The Big Bang Theory, sharing that her drastic haircut before season eight was a decision that the show's creators weren't privy to at ...