angular momentum

1. The vector product of the position vector (from a reference point) and the linear momentum of a particle.

2. The vector sum of the angular momentums of each infinitesimal component particle of an extended body.

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.

angular momentum

(Mathematics) a property of a mass or system of masses turning about some fixed point; it is conserved in the absence of the action of external forces

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

an′gular momen′tum

the product of the moment of inertia of a body about an axis and its angular velocity with respect to the same axis.

[1870–75]

an·gu·lar momentum

(ăng′gyə-lər)

A quantity used to measure the motion of a body that is moving in a circle. The angular momentum depends on the mass and velocity of the body, and on the radius of the circle that it is moving along. Because the velocity of a body moving in a circle is always changing (since velocity is speed and direction), its angular momentum is also always changing.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

angular momentum - the product of the momentum of a rotating body and its distance from the axis of rotation; "any rotating body has an angular momentum about its center of mass"; "angular momentum makes the world go round"

momentum - the product of a body's mass and its velocity; "the momentum of the particles was deduced from meteoritic velocities"

Translations

moment hybnosti

momento angolare

kotni moment

ugaoni moment

Mentioned in

References in periodicals archive

Also, that quantum physics differs from classical physics in that energy, momentum, angular momentum and other quantities of a bound system are restricted to discrete values - whatever that means!

Wonder no more, we have the internet... LETTERS Email: sundaymercury@sundaymercury.net

Regulation of hip joint kinetics for increasing angular momentum during the initiation of a pirouette en dehors in classical ballet.

Abstracts from the Current Literature

However, a different approach [2] called quantum celestial mechanics (QCM) offers the potential ability to predict the existence of additional angular momentum in the planetary system, which could indicate additional planets to be detected or additional mass in the form of rings or spherical shells of mass chunks orbiting the star, such as the Kuiper belt or the Oort Cloud in our Solar System.

Predicting Total Angular Momentum in TRAPPIST-1 and Many Other Multi-Planetary Systems Using Quantum Celestial Mechanics

"Tidal forces transport angular momentum from the stellar rotations to the orbits.

Circumbinary Castaways: Short-Period Binary Systems Can Eject Orbiting Worlds

The default in planet formation is for worlds to coalesce from a dusty disk of gas around a newborn star's middle, a consequence of the conservation of angular momentum. Furthermore, huge planets close to their parent stars "should" be on circular, equator-aligned orbits due to tidal interactions.

Exoplanet Loops Over Star's Pole

Along with those approaches, orbital angular momentum (OAM) of electromagnetic waves receives interest in that it can increase the capacity of wireless communications.

Indoor Propagation of Electromagnetic Waves with Orbital Angular Momentum at 5.8 GHz

The phase shift was calculated in terms of the angular momentum quantum number.

Approximate Scattering State Solutions of DKPE and SSE with Hellmann Potential

Also appropriate for independent study, this undergraduate textbook introduces the supersymmetric quantum mechanics (SUSYQM) approach to solving the Schr|dinger equation, the concept of shape invariant potentials, and the algebra of angular momentum operators.

Supersymmetric Quantum Mechanics: An Introduction, 2nd Edition

Scientists can 'twist' photons--individual particles of light--by passing them through a special type of hologram, similar to that on a credit card, giving the photons a twist known as optical angular momentum.

'Twisted' light--a new path for wireless communications

Zeilinger, "Orbital angular momentum of photons and the entanglement of Laguerre-Gaussian modes," Phil.

Broadband Generation of Orbital Angular Momentum Carrying Beams in RF Regimes