For the anti-pattern in computer science, see Action at a distance (computer programming).
In physics, action at a distance is the concept that an object's motion can be affected by another object without being in physical contact with it; that is, the non-local interaction of objects that are separated in space. Coulomb's law and Newton's law of universal gravitation are based on action at a distance.
Historically, action at a distance was the earliest scientific model for gravity and electricity and it continues to be useful in many practical cases. In the 19th and 20th centuries, field models arose to explain these phenomena with more precision. The discovery of electrons and of special relativity led to new action at a distance models providing alternative to field theories. Under our modern understanding, the four fundamental interactions (gravity, electromagnetism, the strong interaction and the weak interaction) in all of physics are not described by action at a distance.
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In physics, actionatadistance is the concept that an object's motion can be affected by another object without being in physical contact with it; that...
Spooky ActionataDistance is the second studio album by Lotus Plaza, a.k.a. Lockett Pundt, guitarist/vocalist/songwriter for Deerhunter. It was released...
system Actionatadistance, nonlocal interaction in physics Group action (mathematics) Continuous group action Semigroup action Ring Action (mathematics)...
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refer to: Actionatadistance, the concept in physics of nonlocal interactions Principle of locality, the opposite of actionatadistance Quantum nonlocality...
these functions. Following Newton, it became customary to accept actionatadistance as brute fact, and to overlook the philosophical problems involved...
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confirmed by observation. Newton's law of gravitation is an example of actionatadistance: one body, like the Sun, exerts an influence upon any other body...
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mechanism by which they could occur. PK action-at-a-distance would presumably employ an action-at-a-distance force that is as yet unknown to science....
the action of gravity by aid of basic mechanical processes, such as pressure forces caused by pushes, without the use of any actionatadistance. These...
described by Isaac Newton is an "actionatadistance"—its effects on faraway objects are instantaneous, no matter the distance. In an exchange of letters with...
interactions produce forces at minuscule, subatomic distances and govern nuclear interactions inside atoms. Some scientists hypothesize that a fifth force might...
case of normal force. Non-contact force Body force Surface force Actionatadistance (physics) Spring force Plesha, Gray, and Costanzo (2010). Engineering...
instantaneous Earth–Moon distance, or distance to the Moon, is the distance from the center of Earth to the center of the Moon. Lunar distance (LD or Δ ⊕ L {\textstyle...
century in a mathematical formulation of Newton's law of universal gravitation, but it was seen as deficient as it implied actionatadistance. In 1852...
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