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  2. 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 ...

  3. Mathematics of general relativity - Wikipedia

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

    In general relativity, one usually refers to "the" covariant derivative, which is the one associated with Levi-Civita affine connection. By definition, Levi-Civita connection preserves the metric under parallel transport, therefore, the covariant derivative gives zero when acting on a metric tensor (as well as its inverse).

  4. Center-of-gravity method - Wikipedia

    en.wikipedia.org/wiki/Center-of-gravity_method

    The center-of-gravity method is a theoretic algorithm for convex optimization. It can be seen as a generalization of the bisection method from one-dimensional functions to multi-dimensional functions. [1]: Sec.8.2.2 It is theoretically important as it attains the optimal convergence rate. However, it has little practical value as each step is ...

  5. Today’s NYT ‘Strands’ Hints, Spangram and Answers for ...

    www.aol.com/today-nyt-strands-hints-spangram...

    In today's puzzle, there are seven theme words to find (including the spangram). Hint: The first one can be found in the top-half of the board. Here are the first two letters for each word: DR. IN ...

  6. Kendra Scott, a mom of 6, explains how her jewelry company ...

    www.aol.com/kendra-scott-mom-6-explains...

    New episodes of Hoda’s podcast are available every Wednesday — just search “Making Space” wherever you get your podcasts, or click here.. Family is at the heart of Kendra Scott’s ...

  7. Trump's deportations could shake up the restaurant industry ...

    www.aol.com/news/trumps-deportations-could-shake...

    PIIE estimated prices in the service sector would rise 1.7% if the Trump administration deported 1.3 million workers, or to rise 11% if the administration fulfilled its commitment of deporting all ...

  8. Gravitational acceleration - Wikipedia

    en.wikipedia.org/wiki/Gravitational_acceleration

    The Gravity Recovery and Climate Experiment (GRACE) mission launched in 2002 consists of two probes, nicknamed "Tom" and "Jerry", in polar orbit around the Earth measuring differences in the distance between the two probes in order to more precisely determine the gravitational field around the Earth, and to track changes that occur over time ...

  9. Gravitational field - Wikipedia

    en.wikipedia.org/wiki/Gravitational_field

    In classical mechanics, a gravitational field is a physical quantity. [5] A gravitational field can be defined using Newton's law of universal gravitation.Determined in this way, the gravitational field g around a single particle of mass M is a vector field consisting at every point of a vector pointing directly towards the particle.