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  2. Mathematics of general relativity - Wikipedia

    en.wikipedia.org/wiki/Mathematics_of_general...

    For any curve and two points = and = on this curve, an affine connection gives rise to a map of vectors in the tangent space at into vectors in the tangent space at : =,, and () can be computed component-wise by solving the differential equation = () = () where () is the vector tangent to the curve at the point ().

  3. Gravitational time dilation - Wikipedia

    en.wikipedia.org/wiki/Gravitational_time_dilation

    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 ...

  4. Three-body problem - Wikipedia

    en.wikipedia.org/wiki/Three-body_problem

    While a system of 3 bodies interacting gravitationally is chaotic, a system of 3 bodies interacting elastically is not. [clarification needed] There is no general closed-form solution to the three-body problem. [1] In other words, it does not have a general solution that can be expressed in terms of a finite number of standard mathematical ...

  5. List of equations in gravitation - Wikipedia

    en.wikipedia.org/wiki/List_of_equations_in...

    A common misconception occurs between centre of mass and centre of gravity.They are defined in similar ways but are not exactly the same quantity. Centre of mass is the mathematical description of placing all the mass in the region considered to one position, centre of gravity is a real physical quantity, the point of a body where the gravitational force acts.

  6. General relativity - Wikipedia

    en.wikipedia.org/wiki/General_relativity

    It is due to the influence of gravity on the geometry of space and to the contribution of self-energy to a body's gravity (encoded in the nonlinearity of Einstein's equations). [92] Relativistic precession has been observed for all planets that allow for accurate precession measurements (Mercury, Venus, and Earth), [ 93 ] as well as in binary ...

  7. n-body problem - Wikipedia

    en.wikipedia.org/wiki/N-body_problem

    As x i (t 0) and ⁠ dx i (t 0) / dt ⁠ are given as initial conditions, every ⁠ d 2 x i (t) / dt 2 ⁠ is known. Differentiating ⁠ d 2 x i ( t ) / dt 2 ⁠ results in ⁠ d 3 x i ( t ) / dt 3 ⁠ which at t 0 which is also known, and the Taylor series is constructed iteratively.

  8. Speed of gravity - Wikipedia

    en.wikipedia.org/wiki/Speed_of_gravity

    Formally, c is a conversion factor for changing the unit of time to the unit of space. [4] This makes it the only speed which does not depend either on the motion of an observer or a source of light and / or gravity. Thus, the speed of "light" is also the speed of gravitational waves, and further the speed of any massless particle.

  9. Two-body problem in general relativity - Wikipedia

    en.wikipedia.org/wiki/Two-body_problem_in...

    In the normal Euclidean geometry, triangles obey the Pythagorean theorem, which states that the square distance ds 2 between two points in space is the sum of the squares of its perpendicular components = + + where dx, dy and dz represent the infinitesimal differences between the x, y and z coordinates of two points in a Cartesian coordinate ...