universal coupling


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universal coupling

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

u′niver′sal joint′



n.
Mach. a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes.
[1670]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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Here the universal coupling is inserted to be compatible with the (weak) equivalence principle.
Constraints on Gravitation from Causality and Quantum Consistency
Attachments connect with a quick disconnect coupling with a universal coupling pin.
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The company claims a penetrating profile, a flexible, non-marking body design, tremendous strength and service capability, exceptional maneuverability, a universal coupling system and an eventual availability in multiple sizes.
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The FLEXX-RIGHT has a penetrating profile, a flexible, non-marking body design, tremendous strength and service, exceptional maneuverability, and a universal coupling system.
Hammersmith debuts FLEXX-RIGHT
General relativity is established on two principles (Einstein et al 1923, Einstein 1954), namely: 1) Einstein's equivalence principle, which requires the Einstein-Minkowski condition that a free falling point-like particle in a gravitational field is along a geodesic and results in a co-moving local Minkowski space; and 2) the principle of general relativity, that is "The law of physics must be of such a nature that they apply to systems of reference in any kind of motion." However, in current theory, there are other additional implicit assumptions such as the universal coupling (Lo 1997).
Misinterpretation of E = [mc.sup.2] and Einstein's theory of general relativity

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