Einstein synchronisation

•  Black hole

  According to the general theory of relativity, a black hole is a region of space from which nothing, including light, can escape. It is the result of the deformation of spacetime caused by a very compact mass. Around a black hole there is an undetectable surface which marks the point of no return, called an event horizon. It is called "black" because it absorbs all the light that hits it, reflecting nothing, just like a perfect black body in thermodynamics.

  

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•  Faster-than-light

  Faster-than-light (also superluminal or FTL) communications and travel refer to the propagation of information or matter faster than the speed of light. Under the special theory of relativity, a particle (that has mass) with subluminal velocity needs infinite energy to accelerate to the speed of light, although special relativity does not forbid the existence of particles that travel faster than light at all times.

  

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•  Inertial frame of reference

  In physics, an inertial frame of reference (also inertial reference frame or inertial frame) is a frame of reference which describes time homogeneously and space homogeneously, isotropically, and in a time independent manner. This allows motion and interactions to be described without the presence of fictitious forces.

  

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•  Spacetime

  In physics, spacetime (or space–time; or space/time) is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space being three-dimensional and time playing the role of a fourth dimension that is of a different sort from the spatial dimensions. According to certain Euclidean space perceptions, the universe has three dimensions of space and one dimension of time.

  

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•  Theory of relativity

  The theory of relativity, or simply relativity, encompasses two theories of Albert Einstein: special relativity and general relativity. However, the word "relativity" is sometimes used in reference to Galilean invariance. The term "theory of relativity" was coined by Max Planck in 1908 to emphasize how special relativity (and later, general relativity) uses the principle of relativity.

  

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•  Frame of reference

  A frame of reference in physics, may refer to a coordinate system or set of axes within which to measure the position, orientation, and other properties of objects in it, or it may refer to an observational reference frame tied to the state of motion of an observer. It may also refer to both an observational reference frame and an attached coordinate system, as a unit.

  

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•  Principle of relativity

  In physics, the principle of relativity is the requirement that the equations, describing the laws of physics, have the same form in all admissible frames of reference. For example, the Maxwell equations have the same form in all inertial frames of reference; the Einstein field equation has the same form in arbitrary frames of reference. Several principles of relativity have been successfully applied throughout science, whether implicitly or explicitly.

  

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•  Invariant mass

  The invariant mass, intrinsic mass, proper mass or just mass is a characteristic of the total energy and momentum of an object or a system of objects that is the same in all frames of reference. When the system as a whole is at rest, the invariant mass is equal to the total energy of the system divided by c, which is equal to the mass of the system as measured on a scale. If the system is one particle, the invariant mass may also be called the rest mass.

  

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•  World line

  In physics, the world line of an object is the unique path of that object as it travels through 4-dimensional spacetime.

  

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•  Four-momentum

  In special relativity, four-momentum is the generalization of the classical three-dimensional momentum to four-dimensional spacetime. Momentum is a vector in three dimensions; similarly four-momentum is a four-vector in spacetime.

  

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•  Nereid

  In Greek mythology, the Nereids (neer'-ee-eds) (Νηρηΐδες) are sea nymphs, the fifty daughters of Nereus and Doris. They often accompany Poseidon and are always friendly and helpful towards sailors fighting perilous storms. They are particularly associated with the Aegean Sea, where they dwelt with their father in the depths within a silvery cave. The most notable of them are Thetis, wife of Peleus and mother of Achilles; Amphitrite, wife of Poseidon; and Galatea, love of the Cyclops Polyphemus.

  

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•  Smriti

  Smṛti, literally "that which is remembered," refers to a specific body of Hindu religious scripture, and is a codified component of Hindu customary law. Smṛti also denotes non-Shruti texts and is generally seen as secondary in authority to Shruti. The literature which comprises the Smriti was composed after the Vedas around 500 BCE. Smriti also denotes tradition in the sense that it portrays the traditions of the rules on dharma, especially those of lawful virtuous persons.

  

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•  House (TV series)

  House, also known as House, M.D. , is an American television medical drama that debuted on the Fox network on November 16, 2004. The program was co-created by David Shore and Paul Attanasio; Fox officially credits Shore as creator. The show's central character is Dr. Gregory House, an unconventional, maverick medical genius who heads a team of diagnosticians at the fictional Princeton‑Plainsboro Teaching Hospital (PPTH) in New Jersey.

  

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•  MacPherlin Dudu Omagbemi

  MacPherlin Dudu Omagbemi (born 18 July 1985) is a Nigerian footballer, who currently plays for Kecskeméti TE.

  

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•  Qudsi

  

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