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6 days ago · Cosmology - Expansion, Big Bang, Universe: In 1932 Einstein and de Sitter proposed that the cosmological constant should be set equal to zero, and they derived a homogeneous and isotropic model that provides the separating case between the closed and open Friedmann models; i.e., Einstein and de Sitter assumed that the spatial curvature of the universe is neither positive nor negative but rather zero. The spatial geometry of the Einstein–de Sitter universe is Euclidean (infinite total ...
- Frank H. Shu
Aug 13, 2024 · Learn about the personal and scientific legacy of Albert Einstein, the iconic physicist and Nobel laureate. Discover his family roots, marriages, children, and descendants, including Bernhard Caesar Einstein, a physicist.
1 day ago · General relativity, also known as the general theory of relativity, and as Einstein's theory of gravity, is the geometric theory of gravitation published by Albert Einstein in 1915 and is the current description of gravitation in modern physics. General relativity generalizes special relativity and refines Newton's law of universal gravitation ...
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Aug 12, 2024 · Einstein rings occur when light from a very distant object is bent (or ‘ lensed ’) about a massive intermediate (or ‘lensing)’ object. This is possible because spacetime, the fabric of the Universe itself, is bent by mass, and therefore light traveling through spacetime is as well. This is much too subtle to be observed on a local level ...
5 days ago · Ken Krimstein, the cartoonist, including for The New Yorker and Punch, and biographer, has a new graphic novel that tries to show how the two giants of the 20th century might have been influenced by being in the same orbit of Prague's intellectual life in 1911 and 1912 - "Einstein In Kafkaland: How Albert Fell Down The Rabbit Hole And Came Up ...
Jul 31, 2024 · The nature of quantum entanglement remains an outstanding problem in physics. But Albert Einstein's theories, along with insights from quantum computing, could finally put the mystery to rest.
Jul 29, 2024 · In 1859, Bernhard Riemann, another renowned German mathematician, sought help from a different function, now called the Riemann zeta function. For inputs, the function takes complex numbers, which are a combination of real numbers and what mathematicians call “imaginary” ones: a normal number multiplied by the square root of –1.
