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Ellis Wormhole
The Ellis wormhole is the special case of the Ellis drainhole in which the 'ether' is not flowing and there is no gravity. What remains is a pure traversable wormhole comprising a pair of identical twin, nonflat, three-dimensional regions joined at a two-sphere, the 'throat' of the wormhole. As seen in the image shown, two-dimensional equatorial cross sections of the wormhole are catenoidal 'collars' that are asymptotically flat far from the throat. There being no gravity in force, an inertial observer (test particle) can sit forever at rest at any point in space, but if set in motion by some disturbance will follow a geodesic of an equatorial cross section at constant speed, as would also a photon. This phenomenon shows that in space-time the curvature of space has nothing to do with gravity (the 'curvature of time’, one could say). As a special case of the Ellis drainhole, itself a 'traversable wormhole', the Ellis wormhole dates back to the drainhole's discovery in 1969 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellis Drainhole
The Ellis drainhole is the earliest-known complete mathematical model of a traversable wormhole. It is a static, spherically symmetric solution of the Einstein vacuum field equations augmented by inclusion of a scalar field \phi minimally coupled to the geometry of space-time with coupling polarity opposite to the orthodox polarity (negative instead of positive): Overview The solution was found in 1969 (date of first submission) by Homer G. Ellis, and independently around the same time by Kirill A. Bronnikov. Bronnikov pointed out that a two-dimensional analog of the topology of the solution is a hyperboloid of one sheet, and that only use of the antiorthodox coupling polarity would allow a solution with such a topology. Ellis, whose motivation was to find a nonsingular replacement for the Schwarzschild metric, Schwarzschild model of an elementary gravitating particle, showed that only the antiorthodox polarity would do, but found all the solutions for either polarity, as di ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellis Wormhole Catenoid
Ellis is a surname of Welsh and English origin. Retrieved 21 January 2014 An independent French origin of the surname is said to derive from the phrase fleur-de-lis. It has also been noted to be a Jewish surname. People with the surname include: A * Adam Ellis, American webcomic artist * Adam Ellis (born 1996), British grasstrack and speedway rider *Adam Gibb Ellis, Chief Justice of Jamaica * Adrienne Ellis (born 1944), American-Canadian actress * Albert Ellis (other), multiple people *Alexander Ellis (other), multiple people * Allan Ellis (other) *Alton Ellis (1938–2008), Jamaican musician *Andrew Ellis (other), multiple people *Anita Ellis, Canadian-born American singer and actress * Annette Ellis (born 1946), Australian politician *Arthur Ellis (other), multiple people *Atom Ellis (born 1966), American musician *Aunjanue Ellis (born 1969), American actress B *Ben Ellis (other), multiple people * Bill Ellis (1919–2007) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gravitational Lensing
A gravitational lens is matter, such as a galaxy cluster, cluster of galaxies or a point particle, that bends light from a distant source as it travels toward an observer. The amount of gravitational lensing is described by Albert Einstein's General relativity, general theory of relativity. If light is treated as Corpuscular theory of light, corpuscles travelling at the speed of light, Newtonian physics also predicts the bending of light, but only half of that predicted by general relativity. Orest Khvolson (1924) and Frantisek Link (1936) are generally credited with being the first to discuss the effect in print, but it is more commonly associated with Einstein, who made unpublished calculations on it in 1912 and published an article on the subject in 1936. In 1937, Fritz Zwicky posited that galaxy clusters could act as gravitational lenses, a claim confirmed in 1979 by observation of the Twin QSO SBS 0957+561. Description Unlike an lens (optics), optical lens, a point-li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cylindrical Coordinates
A cylinder () has traditionally been a three-dimensional solid, one of the most basic of curvilinear geometric shapes. In elementary geometry, it is considered a prism with a circle as its base. A cylinder may also be defined as an infinite curvilinear surface in various modern branches of geometry and topology. The shift in the basic meaning—solid versus surface (as in a solid ball versus sphere surface)—has created some ambiguity with terminology. The two concepts may be distinguished by referring to solid cylinders and cylindrical surfaces. In the literature the unadorned term "cylinder" could refer to either of these or to an even more specialized object, the '' right circular cylinder''. Types The definitions and results in this section are taken from the 1913 text ''Plane and Solid Geometry'' by George A. Wentworth and David Eugene Smith . A ' is a surface consisting of all the points on all the lines which are parallel to a given line and which pass through a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ellis Wormhole Through Geodesics
Ellis is a surname of Welsh and English origin. Retrieved 21 January 2014 An independent French origin of the surname is said to derive from the phrase fleur-de-lis. It has also been noted to be a Jewish surname. People with the surname include: A * Adam Ellis, American webcomic artist * Adam Ellis (born 1996), British grasstrack and speedway rider *Adam Gibb Ellis, Chief Justice of Jamaica * Adrienne Ellis (born 1944), American-Canadian actress * Albert Ellis (other), multiple people *Alexander Ellis (other), multiple people * Allan Ellis (other) *Alton Ellis (1938–2008), Jamaican musician *Andrew Ellis (other), multiple people *Anita Ellis, Canadian-born American singer and actress * Annette Ellis (born 1946), Australian politician *Arthur Ellis (other), multiple people *Atom Ellis (born 1966), American musician *Aunjanue Ellis (born 1969), American actress B *Ben Ellis (other), multiple people * Bill Ellis (1919–2007) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Theory Of Relativity
In physics, the special theory of relativity, or special relativity for short, is a scientific theory of the relationship between space and time. In Albert Einstein's 1905 paper, "On the Electrodynamics of Moving Bodies", the theory is presented as being based on just two postulates: # The laws of physics are invariant (identical) in all inertial frames of reference (that is, frames of reference with no acceleration). This is known as the principle of relativity. # The speed of light in vacuum is the same for all observers, regardless of the motion of light source or observer. This is known as the principle of light constancy, or the principle of light speed invariance. The first postulate was first formulated by Galileo Galilei (see '' Galilean invariance''). Background Special relativity builds upon important physics ideas. The non-technical ideas include: * speed or velocity, how the relative distance between an object and a reference point changes with time. * speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minkowski Space-time
Minkowski, Mińkowski or Minkovski (Slavic feminine: Minkowska, Mińkowska or Minkovskaya; plural: Minkowscy, Mińkowscy; , ) is a surname of Polish origin. It may refer to: * :pl:Minkowski (herb szlachecki), Minkowski or Mińkowski, a coat of arms of Polish nobility *Alyona Minkovski (born 1986), Russian-American correspondent and presenter * Eugène Minkowski (1885–1972), French psychiatrist * Hermann Minkowski (1864–1909) Russian-born German mathematician and physicist, known for: ** Minkowski addition ** Minkowski–Bouligand dimension ** Minkowski diagram ** Minkowski distance ** Minkowski functional ** Minkowski inequality ** Minkowski space *** Null vector (Minkowski space) ** Minkowski plane ** Minkowski's theorem ** Minkowski's question mark function ** Abraham–Minkowski controversy ** Hasse–Minkowski theorem ** Separating axis theorem, Minkowski separation theorem ** Smith–Minkowski–Siegel mass formula *Christopher Minkowski (born 1953), American Indologist *Kh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mike Morris (physicist)
Michael S. Morris is a Physics professor at Butler University, Indianapolis, United States. He earned a PhD in physics from Caltech under the supervision of Kip Thorne. California Institute of Technology. Retrieved 26 Apr. 2007. Among his nine published peer-reviewed papers, his most notable theoretical contribution is his pioneering analysis of time travel through traversable wormholes, coauthored in 1987 with Kip Thorne, and Ulvi Yurtsever. Kip Thorne tells the story of this discovery in his 1995 book ''Black Holes and Time Warps, Black Holes and Time Warps: Einstein's Outrageous Legacy''. Publications * * * (A tutorial paper)See also * Roman arch (physics), Roman arch References ...
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Kip Thorne
Kip Stephen Thorne (born June 1, 1940) is an American theoretical physicist and writer known for his contributions in gravitational physics and astrophysics. Along with Rainer Weiss and Barry C. Barish, he was awarded the 2017 Nobel Prize in Physics for his contributions to the LIGO detector and the observation of gravitational waves. A longtime friend and colleague of Stephen Hawking and Carl Sagan, he was the Richard P. Feynman Professor of Theoretical Physics at the California Institute of Technology (Caltech) until 2009 and speaks of the astrophysical implications of the general theory of relativity. He continues to do scientific research and scientific consulting, a notable example of which was for the Christopher Nolan film '' Interstellar''. Life and career Thorne was born on June 1, 1940, in Logan, Utah. His father, D. Wynne Thorne (1908–1979), was a professor of soil chemistry at Utah State University, and his mother, Alison (née Comish; 1914–2004), was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wormhole
A wormhole is a hypothetical structure that connects disparate points in spacetime. It can be visualized as a tunnel with two ends at separate points in spacetime (i.e., different locations, different points in time, or both). Wormholes are based on a special Solutions of the Einstein field equations, solution of the Einstein field equations. More precisely they are a transcendental bijection of the spacetime continuum, an Asymptote, asymptotic projection of the Calabi–Yau manifold manifesting itself in anti-de Sitter space. Wormholes are consistent with the General relativity, general theory of relativity, but whether they actually exist is unknown. Many physicists postulate that wormholes are merely projections of a Four-dimensional space, fourth spatial dimension, analogous to how a two-dimensional (2D) being could experience only part of a three-dimensional (3D) object. In 1995, Matt Visser suggested there may be many wormholes in the universe if cosmic strings with negat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
