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branes | A Wisdom Archive on branes | | branes A selection of articles related to branes | |
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| ARTICLES RELATED TO branes | | | |  branes: Encyclopedia II - Particle physics - Public policy and particle physicsExperimental results in particle physics are often obtained using enormous particle accelerators which are very expensive (typically several billion US dollars) and require large amounts of government funding. Because of this, particle physics research involves issues of public policy.
Many have argued that the potential advances do not justify the money spent, and that in fact particle physics takes money away from more important research and education efforts. In 1993, the US Congress stopped the Superconducting Super Collider becau ...
See also:Particle physics, Particle physics - Subatomic particles, Particle physics - History of particle physics, Particle physics - The Standard Model of particle physics, Particle physics - Experimental particle physics, Particle physics - Theoretical particle physics, Particle physics - Particle physics and reductionism, Particle physics - Public policy and particle physics, Particle physics - The future of particle physics Read more here: » Particle physics: Encyclopedia II - Particle physics - Public policy and particle physics |
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| | | | | branes: Encyclopedia II - M-theory - Naming conventions or What does M stand for? There are two issues to be dealt with here:
When Witten named M-theory, he didn't specify what the "M" stood for, presumably because he didn't feel he had the right to name a theory which he hadn't been able to fully describe. According to Witten himself, "'M' stands for 'magic,' 'mystery' or 'membrane,' depending on your taste." Also suggested, has been 'matrix' (see below) and 'mother of all theories'. Cynics have noted that the M might be an upside down "W", standing for Witten. Others have suggested that for now, the "M" in ...
See also:M-theory, M-theory - Background, M-theory - Basics, M-theory - Naming conventions or What does M stand for?, M-theory - M-theory in various backgrounds, M-theory - Membranes, M-theory - Matrix Theory, M-theory - The Anti-deSitter/Conformal Field Theory Correspondence Read more here: » M-theory: Encyclopedia II - M-theory - Naming conventions or What does M stand for? |
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| | | | | branes: Encyclopedia II - Ekpyrotic - Outstanding problems There are major outstanding problems with the ekpyrotic scenario. Foremost among them is that colliding branes are not understood by string theorists, and nobody knows if the scale invariant spectrum will be destroyed by the big crunch, or even what happens when two branes collide. Moreover, like cosmic inflation, while the general character of the forces (in the ekpyrotic scenario, a force between branes) required to create the vacuum fluctuations is known, there is no candidate from particle physics. Moreover, the scenario uses some essent ...
See also:Ekpyrotic, Ekpyrotic - Introduction, Ekpyrotic - Outstanding problems, Ekpyrotic - Popular reception Read more here: » Ekpyrotic: Encyclopedia II - Ekpyrotic - Outstanding problems |
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| | | | | branes: Encyclopedia II - String theory - History String theory was originally invented to explain peculiarities of hadron (subatomic particle which experiences the strong nuclear force) behavior. In particle-accelerator experiments, physicists observed that the spin of a hadron is never larger than a certain multiple of the square of its energy. No simple model of the hadron, such as picturing it as a set of smaller particles held together by spring-like forces, was able to explain these relationships. In 1968, theoretical physicist Gabriele Veneziano was trying to understand the strong nu ...
See also:String theory, String theory - History, String theory - Basic properties, String theory - Dualities, String theory - Extra dimensions, String theory - Problems, String theory - References and further reading, String theory - Footnote, String theory - Popular books and articles, String theory - Textbooks, String theory - External links Read more here: » String theory: Encyclopedia II - String theory - History |
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| | | | | branes: Encyclopedia II - Particle physics - Experimental particle physics In particle physics, the major international collaborations are:
Brookhaven National Laboratory, located on Long Island, USA. Its main facility is the Relativistic Heavy Ion Colliderwhich collides heavy ions such as gold ions (it is the first heavy ion collider) and protons.
Budker Institute of Nuclear Physics (Novosibirsk, Russia)
CERN, located on the French-Swiss border near Geneva. Its main project is now LHC, or the Large Hadron Collider, which is currently under construction. The LHC ...
See also:Particle physics, Particle physics - Subatomic particles, Particle physics - History of particle physics, Particle physics - The Standard Model of particle physics, Particle physics - Experimental particle physics, Particle physics - Theoretical particle physics, Particle physics - Particle physics and reductionism, Particle physics - Public policy and particle physics, Particle physics - The future of particle physics Read more here: » Particle physics: Encyclopedia II - Particle physics - Experimental particle physics |
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| | | | | branes: Encyclopedia II - Particle physics - Particle physics and reductionism Throughout the development of particle physics, there have been many objections to the extreme reductionist (or greedy reductionist) approach of attempting to explain everything in terms of elementary particles and their interaction. These objections have been raised by people from a wide array of fields, including many modern particle physicists, solid state physicists, chemists, biologists, and metaphysical holists. While the Standard Model itself is not challenged, it is contended that the properties of elementary particles ...
See also:Particle physics, Particle physics - Subatomic particles, Particle physics - History of particle physics, Particle physics - The Standard Model of particle physics, Particle physics - Experimental particle physics, Particle physics - Theoretical particle physics, Particle physics - Particle physics and reductionism, Particle physics - Public policy and particle physics, Particle physics - The future of particle physics Read more here: » Particle physics: Encyclopedia II - Particle physics - Particle physics and reductionism |
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