Modified Newtonian Dynamics


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Modified Newtonian Dynamics

n. Abbr. MOND
A variation of Newton's laws of motion, developed to explain the relatively constant orbital velocity of stars around the center of a galaxy without hypothesizing the existence of dark matter, in which force is not directly proportional to mass times acceleration when the accelerations are very small, having instead a lower value.
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This result therefore undermines alternative approaches, including modified Newtonian dynamics (MOND), a theory of gravity that does without dark matter by suggesting gravity works slightly differently than in Einstein's framework, the team says.
According to the theory called MOND (MOdified Newtonian Dynamics), the attraction between two masses obeys Newton's laws only up to a certain point.
"These observations, consistent with simple modified Newtonian dynamics, can be accommodated within the standard cold dark matter paradigm."
Either, the galaxies contain large quantities of unseen matter called "dark matter," or Newton's laws need to be modified for extremely small accelerations according to a Modified Newtonian Dynamics (MOND) proposed by Israeli physicist Mordechai Milgrom (MILGROM 1983).
His Modified Newtonian Dynamics (MOND) is an empirical correction of Newton's laws of gravity and inertia, proposed as an alternative to dark matter.
Yet predictions made using the alternative hypothesis Modified Newtonian Dynamics (MOND) succeeded in anticipating the observations.
In an alternative theory, called modified Newtonian dynamics, or MOND, forces such as gravity would produce small accelerations in addition to that which standard Newtonian physics predicts.
Alternative theories include Modified Newtonian Dynamics, or MOND.
This value of acceleration is also the "critical acceleration" of modified Newtonian dynamics MOND,
That's the case in this issue, where you'll find (beginning on page 30) an article about Modified Newtonian Dynamics. The brainchild of astronomer Mordehai Milgrom, MOND posits that when gravity gets really weak--as it does in the outskirts of galaxies--it no longer follows Isaac Newton's inverse-square law.
One of these is Modified Newtonian Dynamics (MOND), which was hypothesized in 1983 by Moti Milgrom a physicist at the Weizmann Institute of Science in Rehovot, Israel.

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