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Gravitational wave - Wikipedia
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The Chongqing University detector is planned to detect relic high-frequency gravitational waves with the predicted typical parameters ≈10 11 Hz (100 GHz) and h ≈10 −30 to 10 −32 ... All of these must be taken into account and excluded by analysis before detection may be considered a true gravitational wave event. Einstein@Home ...
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en.wikipedia.org/wiki/Gravitational_wave
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First observation of gravitational waves - Wikipedia
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Video simulation showing the warping of space-time and gravitational waves produced, during the final inspiral, merge, and ringdown of black hole binary system GW150914. Albert Einstein originally predicted the existence of gravitational waves in 1916, on the basis of his theory of general relativity. General relativity interprets gravity as a consequence of distortions in space-time, caused ...
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en.wikipedia.org/wiki/First_observation_of_gravitational_waves
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Tests of general relativity - Wikipedia
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Gravitational-wave astronomy can test general relativity by verifying that the observed waves are of the form predicted (for example, that they only have two transverse polarizations), and by checking that black holes are the objects described by solutions of the Einstein field equations. Gravitational-wave astronomy can also test Maxwell ...
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en.wikipedia.org/wiki/Tests_of_general_relativity
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Introduction to general relativity - Wikipedia
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t. e. General relativity is a theory of gravitation developed by Albert Einstein between 1907 and 1915. The theory of general relativity says that the observed gravitational effect between masses results from their warping of spacetime . By the beginning of the 20th century, Newton's law of universal gravitation had been accepted for more than ...
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en.wikipedia.org/wiki/Introduction_to_general_relativity
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General relativity - Wikipedia
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Predicted in 1916 by Albert Einstein, there are gravitational waves: ripples in the metric of spacetime that propagate at the speed of light. These are one of several analogies between weak-field gravity and electromagnetism in that, they are analogous to electromagnetic waves .
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en.wikipedia.org/wiki/General_relativity
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LIGO - Wikipedia
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The Laser Interferometer Gravitational-Wave Observatory (LIGO) is a large-scale physics experiment and observatory designed to detect cosmic gravitational waves and to develop gravitational-wave observations as an astronomical tool. ... These waves were first predicted by Einstein's general theory of relativity in 1916, ...
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en.wikipedia.org/wiki/LIGO
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History of general relativity - Wikipedia
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General relativity is a theory of gravitation that was developed by Albert Einstein between 1907 and 1915, with contributions by many others after 1915. According to general relativity, the observed gravitational attraction between masses results from the warping of space and time by those masses.. Before the advent of general relativity, Newton's law of universal gravitation had been accepted ...
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en.wikipedia.org/wiki/History_of_general_relativity
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Gravitational-wave astronomy - Wikipedia
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Gravitational-wave astronomy is a subfield of astronomy concerned with the detection and study of gravitational waves emitted by astrophysical sources. ... Gravitational waves were later predicted in 1916 by Albert Einstein on the basis of his general theory of relativity as ripples in spacetime.
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en.wikipedia.org/wiki/Gravitational-wave_astronomy
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Timeline of gravitational physics and relativity - Wikipedia
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1907 - Albert Einstein introduces the principle of equivalence of gravitational and inertial mass and uses it to predict gravitational lensing and gravitational redshift, historically known as the Einstein shift. 1907-9 ... 1916 - Albert Einstein predicts gravitational waves. 1916 - Willem de Sitter predicts the geodetic effect.
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en.wikipedia.org/wiki/Timeline_of_gravitational_physics_and_relativity
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Black Holes and Time Warps - Wikipedia
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Black Holes & Time Warps: Einstein's Outrageous Legacy is a 1994 popular science book by physicist Kip Thorne. ... Thorne describes the much less mature search for gravitational waves, phenomena predicted to result from supernovae and black hole collisions, but as yet unobserved in 1993 (and, ...
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en.wikipedia.org/wiki/Black_Holes_and_Time_Warps
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Einstein's thought experiments - Wikipedia
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In other words, the increase in gravitational mass predicted by the above arguments is precisely equal to the increase in inertial mass predicted by special relativity. [p 12] [note 5] Einstein then considered sending a continuous electromagnetic beam of frequency v 2 {\displaystyle v_{2}} (as measured at S 2 {\displaystyle S_{2}} ) from S 2 ...
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en.wikipedia.org/wiki/Einstein's_thought_experiments
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Gravity - Wikipedia
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The gravitational waves emitted during the collision of two black holes 1.3 billion light years from Earth were measured. [82] [83] This observation confirms the theoretical predictions of Einstein and others that such waves exist.
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en.wikipedia.org/wiki/Gravity
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History of gravitational theory - Wikipedia
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In physics, theories of gravitation postulate mechanisms of interaction governing the movements of bodies with mass. There have been numerous theories of gravitation since ancient times. The first extant sources discussing such theories are found in ancient Greek philosophy. This work was furthered through the Middle Ages by Indian, Islamic ...
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en.wikipedia.org/wiki/History_of_gravitational_theory
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Theory of relativity - Wikipedia
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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] Special relativity applies to all physical phenomena in the absence of gravity. General relativity explains the law of gravitation and its ...
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en.wikipedia.org/wiki/Theory_of_relativity
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Einstein Telescope - Wikipedia
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Einstein Telescope (ET) or Einstein Observatory, is a proposed third-generation ground-based gravitational wave detector, currently under study by some institutions in the European Union.It will be able to test Einstein's general theory of relativity in strong field conditions and realize precision gravitational wave astronomy.. The ET is a design study project supported by the European ...
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en.wikipedia.org/wiki/Einstein_Telescope
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Gravitational redshift - Wikipedia
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The gravitational redshift of a light wave as it moves upwards against a gravitational field (produced by the yellow star below). The effect is greatly exaggerated in this diagram. In physics and general relativity, gravitational redshift (known as Einstein shift in older literature) is the phenomenon that electromagnetic waves or photons travelling out of a gravitational well lose energy.
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en.wikipedia.org/wiki/Gravitational_redshift
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Gravitational-wave observatory - Wikipedia
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The Chongqing University detector is planned to detect relic high-frequency gravitational waves with the predicted typical parameters ~ 10 10 Hz (10 GHz) and h ~ 10 −30 to 10 −31. Levitated Sensor Detector is a proposed detector for gravitational waves with a frequency between 10 kHz and 300 kHz, potentially coming from primordial black holes.
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en.wikipedia.org/wiki/Gravitational-wave_observatory
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Speed of gravity - Wikipedia
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In classical theories of gravitation, the changes in a gravitational field propagate. A change in the distribution of energy and momentum of matter results in subsequent alteration, at a distance, of the gravitational field which it produces. In the relativistic sense, the "speed of gravity" refers to the speed of a gravitational wave, which, as predicted by general relativity and confirmed by ...
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en.wikipedia.org/wiki/Speed_of_gravity
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Gravitational memory effect - Wikipedia
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Gravitational memory effects, also known as gravitational-wave memory effects are predicted persistent changes in the relative position of pairs of masses in space due to the passing of a gravitational wave. [2] Detection of gravitational memory effects has been suggested as a way of validating general relativity. [3]
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en.wikipedia.org/wiki/Gravitational_memory_effect
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Frame-dragging - Wikipedia
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Frame-dragging is an effect on spacetime, predicted by Albert Einstein's general theory of relativity, that is due to non-static stationary distributions of mass-energy.A stationary field is one that is in a steady state, but the masses causing that field may be non-static — rotating, for instance. More generally, the subject that deals with the effects caused by mass-energy currents ...
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en.wikipedia.org/wiki/Frame-dragging
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Gravitational time dilation - Wikipedia
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Gravitational time dilation is a form of time dilation, an actual difference of elapsed time between two events, as measured by observers situated at varying distances from a gravitating mass.The lower the gravitational potential (the closer the clock is to the source of gravitation), the slower time passes, speeding up as the gravitational potential increases (the clock moving away from the ...
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en.wikipedia.org/wiki/Gravitational_time_dilation
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Nordström's theory of gravitation - Wikipedia
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In theoretical physics, Nordström's theory of gravitation was a predecessor of general relativity.Strictly speaking, there were actually two distinct theories proposed by the Finnish theoretical physicist Gunnar Nordström, in 1912 and 1913 respectively.The first was quickly dismissed, but the second became the first known example of a metric theory of gravitation, in which the effects of ...
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en.wikipedia.org/wiki/Nordström's_theory_of_gravitation
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Gravitational lens - Wikipedia
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A light source passes behind a gravitational lens (invisible point mass placed in the center of the image). The aqua circle is the light source as it would be seen if there were no lens, while white spots are the multiple images of the source (see Einstein ring).. A gravitational lens is matter, such as a cluster of galaxies or a point particle, that bends light from a distant source as it ...
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en.wikipedia.org/wiki/Gravitational_lens
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