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Melanonychia linked with syndromes, such as Peutz-Jeghers, Touraine, and Laugier-Hunziker, usually affects numerous digits and is accompanied by mucosal pigmented macules including the lips and oral cavity. [5] The most frequent cause of brown-black coloration on nails is hematomas. It can be chronic (repeated, tiny trauma) or acute (after a ...
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.
Video simulation of the merger GW150914, showing spacetime distortion from gravity as the black holes orbit and merge. The theory of relativity usually encompasses two interrelated physics theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. [1]
The original can be viewed here: Portrait of Albert Einstein and Others (1879-1955), Physicist - Original.jpg: . Modifications made by Bammesk . This is a featured picture on Wikimedia Commons ( Featured pictures ) and is considered one of the finest images.
We now know that nearly every galaxy has a black hole at its center, and researchers’ discovery of Einstein’s gravitational waves created by colliding black holes in 2015 — a landmark ...
The radiation from the general neighborhood, including the accretion disk, is affected by the nature of the central black hole. Assuming Einstein's theory is correct, astrophysical black holes are described by the Kerr metric. (A consequence of the no-hair theorems.) Thus, by analyzing the radiation from such systems, it is possible to test ...
For the first time ever, scientists have seen the light from behind a
Astronomers say they have for the first time observed an area of a black hole predicted by Albert Einstein about 10,000 light-years from Earth. Study proves black holes have a ‘plunging region ...