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The God Equation: The Quest for a Theory of Everything is a popular science book by the futurist and physicist Michio Kaku. The book was initially published on April 6, 2021, by Doubleday. [1] [2] The book debuted at number six on The New York Times nonfiction best-seller list for the week ending April 10, 2021. [3]
In physics, the principle of relativity is the requirement that the equations describing the laws of physics have the same form in all admissible frames of reference. For example, in the framework of special relativity, the Maxwell equations have the same form in all inertial frames of reference.
Gott first thought of his "Copernicus method" of lifetime estimation in 1969 when stopping at the Berlin Wall and wondering how long it would stand.Gott postulated that the Copernican principle is applicable in cases where nothing is known; unless there was something special about his visit (which he did not think there was) this gave a 75% chance that he was seeing the wall after the first ...
The first crucial concept is coordinate independence: The laws of physics cannot depend on what coordinate system one uses. This is a major extension of the principle of relativity from the version used in special relativity, which states that the laws of physics must be the same for every observer moving in non-accelerated (inertial) reference ...
They proved that quantum randomness is, exclusively, the output of measurement experiments whose input settings introduce logical independence into quantum systems. [9] [10] Logical independence is a well-known phenomenon in Mathematical Logic. It refers to the null logical connectivity that exists between mathematical propositions (in the same ...
In the fundamental branches of modern physics, namely general relativity and its widely applicable subset special relativity, as well as relativistic quantum mechanics and relativistic quantum field theory, the Lorentz transformation is the transformation rule under which all four-vectors and tensors containing physical quantities transform from one frame of reference to another.
In general relativity, background independence is identified with the property that the metric of spacetime is the solution of a dynamical equation. [2] In classical mechanics , this is not the case, the metric is fixed by the physicist to match experimental observations.
The first Friedmann equation is often seen in terms of the present values of the density parameters, that is [10] =, +, +, +,. Here Ω 0,R is the radiation density today (when a = 1 ), Ω 0,M is the matter ( dark plus baryonic ) density today, Ω 0, k = 1 − Ω 0 is the "spatial curvature density" today, and Ω 0,Λ is the cosmological ...