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Topic: Spin


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  Spin (physics) - Wikipedia, the free encyclopedia
Photons are spin-one particles, and the hypothetical graviton is a spin-two particle.
Spin was first discovered in the context of the emission spectrum of alkali metals.
Magnetic material may be modelled by a system of spins located at positions in a lattice, where the interaction of neighboring spins contributes to the total energy of the system and the states of the spins change according to some non-deterministic (probabilistic) rule (the dynamics of the system).
en.wikipedia.org /wiki/Spin_(physics)   (1207 words)

  
 Learn more about Spin (physics) in the online encyclopedia.   (Site not responding. Last check: 2007-10-22)
Spin is an intrinsic angular momentum associated with quantum mechanical particles.
Unlike classical "spinning" objects, which derive their angular momentum from the rotation of their constituent parts, spin angular momentum is not associated with any rotating internal masses.
Also, unlike classical mechanical spinning, the spin is not described by a vector, but by a two-component object (for spin-1/2 particles): there is an observable difference in how it transforms under coordinate rotations.
www.onlineencyclopedia.org /s/sp/spin__physics_.html   (727 words)

  
 Spin (public relations) - Wikipedia, the free encyclopedia
In public relations, spin is a usually pejorative term signifying a heavily biased portrayal in one's own favor of an event or situation.
Because of the frequent association between "spin" and press conferences (especially government press conferences), the room in which these take place is sometimes described as a spin room.
"Spin" was originally an acronym, "Significant Progress In the News," used by public relations specialists in the Strategic Defense Initiative (SDI) in the mid-1980s.
en.wikipedia.org /wiki/Spin_(public_relations)   (356 words)

  
 Spin Networks
Spin networks are states of quantum geometry in a theory of quantum gravity, discovered by Lee Smolin and Carlo Rovelli, which is the conceptual ancestor of the imaginary physics of Schild's Ladder.
If a quantum-mechanical particle starting out in a certain spin state (characterised by a total spin, j, and a component in the direction of the z-axis, m) is carried along a path through space, parallel transport will generally change the particle's spin state; this is the quantum-mechanical equivalent of the rotation of a classical vector.
The total spins on the edges aren't enough to fully describe a particle's spin state, though; there is still freedom to choose different values for m, the components of spin along the z-axis.
www.netspace.net.au /%7Egregegan/SCHILD/Spin/SN.html   (443 words)

  
 Electron spin
The electron spin magnetic moment is important in the spin-orbit interaction which splits atomic energy levels and gives rise to fine structure in the spectra of atoms.
The electron spin magnetic moment is also a factor in the interaction of atoms with external magnetic fields (Zeeman effect).
The term "electron spin" is not to be taken literally in the classical sense as a description of the origin of the magnetic moment described above.
hyperphysics.phy-astr.gsu.edu /hbase/spin.html   (1020 words)

  
 Spin   (Site not responding. Last check: 2007-10-22)
As you spin, trim your side to side balance as necessary by changing the tilt of your arms a little.
To stop the spin, untwist the torso, level the arms and allow the hips to come back inline, that is to where your head, spine, hips and the unicycle frame are all in a straight line.
I have done spins on my 24", but I think they may be easier to do on a 20" unicycle.
www.unicycling.org /unicycling/skills/spin.html   (586 words)

  
 Left-arm orthodox spin - Wikipedia, the free encyclopedia
In the sport of cricket, left-arm orthodox spin is the equivalent of off spin bowling, but bowled with the left hand.
As a result, the ball spins away from a right-handed batsman, like leg spin.
Left arm spin is one of the more challenging arts of cricket because it requires long hours of practice to get the right line.
en.wikipedia.org /wiki/Left-arm_orthodox_spin   (295 words)

  
 Spin-off - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-22)
The term is also used for concepts or products spun off a research project, for example methods or materials pioneered during the Manhattan Project or during the Space Race.
The process of deriving new radio or television programs from existing ones is also referred to as spinning off (see list of television spin-offs).
If Blair really means what he says about ending spin and creating a new openness, he should start by taking his grubby hands off the Today programme.(watching...
encyclopedia.worldsearch.com /spin-off.htm   (440 words)

  
 Spin - Formal Verification
Spin is a popular open-source software tool, used by thousands of people worldwide, that can be used for the formal verification of distributed software systems.
Spin works on-the-fly, which means that it avoids the need to preconstruct a global state graph, or Kripke structure, as a prerequisite for the verification of system properties.
Spin can be used as a full LTL model checking system, supporting all correctness requirements expressible in linear time temporal logic, but it can also be used as an efficient on-the-fly verifier for more basic safety and liveness properties.
spinroot.com /spin/whatispin.html   (1498 words)

  
 Southern California SPIN
SPIN meetings are held on the UC Irvine campus from 9:00 am to 12 noon on the last Friday of every month (except holidays) and have an average attendance of 60.
SPIN meetings are planned and organized by the SPIN Steering Committee, which meets monthly immediately after the SPIN meetings.
The Southern California SPIN was pleased to co-sponsored the 5th SEPG National Meeting (the predecessor to the annual SEPG Conference) with the SEI.
www.ics.uci.edu /IRUS/spin/spin.html   (514 words)

  
 Spin
Second, spin is facilitated by the forum provided by the media; in particular, spin as a political strategy has benefited from the proliferation of cable television and specifically the rise of political talk shows, which offers a stage for the practitioners of spin.
Spin can be proactive or reactive, can originate with a political actor or be carried out through surrogates, and can be a campaigning or governing activity (to the extent that the one set of political activities can be meaningfully extruded from the other).
Offensive spin typically involves attempting to change the subject, either by questioning the credibility of persons attacking, or by attacking the media in an attempt to raise the perceived stakes of pursuing a line of questioning a politician clearly indicates is out of bounds.
www.rsu.edu /faculty/khicks/Essays/Spin.htm   (8588 words)

  
 SPIN: Searchable Physics Information Notices   (Site not responding. Last check: 2007-10-22)
SPIN® is a bibliographic database with abstracts, published by the American Institute of Physics (AIP).
SPIN provides the most current abstracts, with indexing, of major American and Russian physics and astronomy journals, as well as a number of journals in other areas related to physics and/or engineering.
SPIN Coverage includes all journals and proceedings published by AIP and its ten Member Societies, as well as other American scientific journals, a total of over 80 journals.
www.aip.org /aip/spin/spinhome.html   (193 words)

  
 Spin and Polarization
The spin of a particle is quantized, so when we make a measurement at any specific angle we get only one of the two results UP or DOWN.
Photons too have quantum spin (they are spin-1 particles), but since photons travel at the speed c, the "spin axis" of a photon is always parallel to its direction of motion, pointing either forward or backward.
The photon's spin axis is always parallel to the direction of travel, whereas the polarization axis of a wave of light is perpendicular to the direction of travel.
www.mathpages.com /rr/s9-04/9-04.htm   (1001 words)

  
 Spin
SPIN is a statewide project of the Maine Parent Federation, serving parents and professionals who are concerned about issues related to children and young adults with disabilities.
SPIN publishes a newsletter every three months which provides information on upcoming events, workshops, and articles of interest to parents of children with disabilities.
SPIN provides assistance to parents who wish to network with other families with similar interests and who wish to join existing parent support groups.
www.mpf.org /SPIN   (545 words)

  
 Amazon.com: Magazine Subscriptions: Spin [MAGAZINE SUBSCRIPTION]   (Site not responding. Last check: 2007-10-22)
Due to its well-funded birth, Spin rode the wave of the burgeoning alternative rock movement and was afforded the luxury of being as controversial as it wanted, forsaking at times somewhat slanted reporting in favor of the punch and jibe.
Spin will continue to be the front running music magazine for years to come I'm sure.
Spin rotates the same ten bands on its cover, not to mention the ridiculous articles written within.
www.amazon.com /exec/obidos/tg/detail/-/B00005N7SU?v=glance   (1562 words)

  
 Spinning Brains   (Site not responding. Last check: 2007-10-22)
Researchers have long known that spinning spaceships like a merry-go-round could solve a lot of problems: In weightlessness, astronaut's bones and muscles weaken.
Inside a spinning spaceship, on the other hand, there would be an artificial gravity (due to centrifugal forces) that keeps bodies strong and makes everyday living easier.
For comparison, a spinning spaceship would likely rotate more slowly, perhaps 10 rpm, depending on the size and design of the craft.
science.nasa.gov /headlines/y2004/23jul_spin.htm   (1164 words)

  
 Spin Doctors   (Site not responding. Last check: 2007-10-22)
Formed in New York in 1991, the Spin Doctors began as Trucking Company in 1989 with Chris Barron (singer/songwriter), Eric Schenkman and John Popper, high school friends from Princeton, N.J. Popper left to form Blues Traveler, so Aaron Comess, New School (a school associated with Parsons) classmate joined the band.
Although the band was only one of many bands with their sound/style (jam-oriented blues), only the Spin Doctors made it big.
According to Spin Doctors drummer Aaron Comess, Barron's affliction began during a string of shows in late May. "Chris woke up on a Monday morning and had no voice," he said.
www.the-wallflowers.net /people_spindoctors.htm   (326 words)

  
 NPR : 'Spin', Present at the Creation   (Site not responding. Last check: 2007-10-22)
They'll be the Spin Doctors, senior advisers to the candidates, and they'll be playing for very high stakes.
Atwater, who served on many campaigns, including Reagan's trek to the 1984 election, is generally remembered as the superstar of spin, the inevitable man at the center of that great clump of reporters with outstretched microphones.
But another reason, he says, is that part of the business of spinning was just providing a voice for all the microphones that were out there.
www.npr.org /programs/morning/features/patc/spin   (1058 words)

  
 Spin - Version 4.2 - April 2005
Spin is distributed in source form to encourage research in formal verification, and to help a support friendly and open exchange of algorithms, ideas, and tools.
To run Spin, even from the precompiled version, you need a working C-compiler and a C-preprocessor, because Spin generates its model checking software as C-source files that require compilation before a verification can be performed.
To avoid the name clash, you either have to edit the Spin source code to give it the full path name of the 'real' cpp.exe and recompile, or use Spin with the command-line option -Pxxxx where xxxx is the path for cpp.exe.
spinroot.com /spin/Man/README.html   (1872 words)

  
 Spinning┬« - The original indoor cycling program: fitness education, certifications, stationary bikes, apparel, DVDs, ...
Spinning® The global leader in indoor cycling, offering certification, fitness training and education, SPIN®, stationary Spinner® bikes, equipment, apparel, video/DVD workouts and music.
The Spinning program is the original and most popular group cycling class.
Spin®, Spinner® and Spinning® are registered trademarks of Mad Dogg Athletics, Inc.
www.spinning.com   (185 words)

  
 Amazon.com: Books: Spin   (Site not responding. Last check: 2007-10-22)
As it becomes clear that the Spin is not any sort of natural phenomenon, there are only two ways of explaining it: either it's a technological phenomenon created by unknown alien beings (the "Hypotheticals"), or it represents the direct action of God.
Spin is the story of three-friends, told against the back-drop of the huge event of the stars suddenly vanishing from the sky and finding out what cuased it.
I really enjoyed this possible future where a membrane envelops the Earth causing a condition called the "spin" where time on Earth is passing slowly while the rest of the universe is aging at super fast speed.
www.amazon.com /exec/obidos/tg/detail/-/0765309386?v=glance   (1856 words)

  
 Software Process Improvement Network :: Washington, D.C. Area   (Site not responding. Last check: 2007-10-22)
SPIN (Software Process Improvement Network) is a leadership forum for the free and open exchange of software process improvement experiences and practical ideas.
SPIN holds monthly meetings (normally the first Wednesday evening of each month — we try to avoid Federal and religious holidays, or conference conflicts).
You are invited to our DC SPIN meetings, held on the first Wednesday of each month (except during weeks with holidays and as needed to accommodate speakers.), 7:30 - 9:30 PM, at CACI in Fairfax, VA. Please arrive at 7:00 PM for networking and refreshments.
www.software.org /dcspin   (619 words)

  
 SMC Papers   (Site not responding. Last check: 2007-10-22)
Spin structure of the proton from polarized inclusive deep-inelastic scattering
Spin Asymmetries A1 and structure functions g1 of the proton and the deuteron from polarized high energy muon scattering
Spin asymmetries for Events with High Pt Hadrons in DIS and an Evaluation of the Gluon Polarization
na47sun05.cern.ch /smc_papers.html   (265 words)

  
 SPIN
SPIN is an operating system that blurs the distinction between kernels and applications.
For instance, the SPIN Web server executes entirely in the kernel address space.
As an extensible system, SPIN is an excellent platform for operating systems research.
www.cs.washington.edu /research/projects/spin/www   (251 words)

  
 Spin out - Glossary - Encyclopedia - Library - VC Experts
Spin out - Glossary - Encyclopedia - Library - VC Experts
Typically, private equity investors will provide the necessary capital to allow the division to "spin out" on its own; the parent company may retain a minority stake.
An attorney-client relationship does not exist in connection with the non-legal services VC Experts provides.
vcexperts.com /vce/library/encyclopedia/glossary_view.asp?glossary_id=301   (186 words)

  
 [No title]
Spin is built on top of virtual proxies and a technique borrowed from the java.awt.Dialog component: While a modal dialog has to wait for user input, the EDT is rerouted to the swing event processing to handle further events.
The core of Spin consists only of one class but it is a powerful solution for non-freezing Swing applications.
The Spin project is influenced by the Foxtrot project.
spin.sourceforge.net   (1993 words)

  
 Xbox.com :: Top Spin Game Detail Page
Top Spin offers singles or doubles matches with 16 of the world's top professionals, including cover athletes Anna Kournikova and the world's number-one player, Lleyton Hewitt.
Experience intense action and realism: Top Spin delivers all the intensity of professional tennis, from cross-court winners and crushing ground strokes to rocket serves.
Master all the shots, including slices, lobs, drops, spins, and several trick shots, while perfecting your play on various surfaces, including clay, hard court, and grass.
www.xbox.com /en-US/topspin   (447 words)

  
 Scientists Obtain Evidence Earth's Spin Twists Space-Time Around It
He said a spinning flywheel would impart a twist to space and time that would affect a nearby gyroscope.
If a frictionless gyro is placed near the flywheel, its axis of spin, the imaginary line around which the gyro revolves, will be dragged in the direction of the flywheel's rotation.
The flywheel's impact would be infinitesimal and hard to measure because it is not a massive object, so scientists at the University of Maryland and the University of Lecce in Italy devised a way to measure the rotating impact of something much bigger, Earth, on two orbiting satellites six-thousand kilometers high.
www.voanews.com /english/2004-10-21-voa131.cfm   (796 words)

  
 A Spin through Space-Time: Science News Online, Nov. 1, 2003   (Site not responding. Last check: 2007-10-22)
A gyroscope is a spinning object, usually a wheel, mounted in a frame that can swivel freely.
The wheel's spin produces inertia that keeps the wheel's spin axis pointed in a fixed direction, so gyroscopes have long served as stable references for compasses and navigation systems.
Known as geodetic precession, this effect is expected to shift the gyroscopes' spin axes by more than 150 times as much as frame dragging does.
www.sciencenews.org /20031101/bob9.asp   (2050 words)

  
 SPiN Guestbook / register / form   (Site not responding. Last check: 2007-10-22)
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SPiN shall not be liable to the User or any third party should SPiN exercise its right to modify or discontinue the Service.
SPiN cannot and will not be liable for any loss or damage arising from User's failure to comply with this Term.
two.guestbook.de /register.cgi   (926 words)

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