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Albert Einstein [a] (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who is best known for developing the theory of relativity.Einstein also made important contributions to quantum mechanics.
Albert Einstein, 1921. Albert Einstein's religious views have been widely studied and often misunderstood. [1] Albert Einstein stated "I believe in Spinoza's God". [2] He did not believe in a personal God who concerns himself with fates and actions of human beings, a view which he described as naïve. [3]
Einstein himself considered the introduction of the cosmological constant in his 1917 paper founding cosmology as a "blunder". [3] The theory of general relativity predicted an expanding or contracting universe, but Einstein wanted a static universe which is an unchanging three-dimensional sphere, like the surface of a three-dimensional ball in four dimensions.
A hallmark of Albert Einstein's career was his use of visualized thought experiments (German: Gedankenexperiment [1]) as a fundamental tool for understanding physical issues and for elucidating his concepts to others. Einstein's thought experiments took diverse forms. In his youth, he mentally chased beams of light.
The Einsteinhaus on the Kramgasse in Bern, Einstein's residence at the time. Most of the papers were written in his apartment on the first floor above the street level. At the time the papers were written, Einstein did not have easy access to a complete set of scientific reference materials, although he did regularly read and contribute reviews to Annalen der Physik.
It was also claimed that special relativity cannot handle acceleration, which would lead to contradictions in some situations. However, this assessment is not correct, since acceleration actually can be described in the framework of special relativity (see Acceleration (special relativity), Proper reference frame (flat spacetime), Hyperbolic motion, Rindler coordinates, Born coordinates).
Albert Einstein's discovery of the gravitational field equations of general relativity and David Hilbert's almost simultaneous derivation of the theory using an elegant variational principle, [B 1]: 170 during a period when the two corresponded frequently, has led to numerous historical analyses of their interaction.
Einstein: His Life and Universe is a non-fiction book authored by American historian and journalist Walter Isaacson.The biographical analysis of Albert Einstein's life and legacy was published by Simon & Schuster in 2007, and it has received a generally positive critical reception from multiple fronts, [1] [2] praise appearing from an official Amazon.com review as well as in publications such ...