Can anybody enlighten us on what could theoretically be the structure of a tachyon?
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What are Photons & Tachyon Energy? \n\nTachyon energy are subatomic particles of light that travel faster than light.\n\nPhotons are quantum packets of light carrying energy, they move faster than light A demonstrate particle & wave properties (ie, moving in straight lines as well as in waves). \n\n"A photon light particle is the result of a collision between an anti-electron (positron) & an electron. This split second collision causes the two particles to destroy each other. The resulting mass of this collision is completely converted into energy that registers as photons or light particles. " *P 28 of the book, "You Are Becoming A Galactic Human'. \n\nDo not be confused by the term Tachyon. There are 2 companies using the name Tachyon. One is a Japanese company called "Tachyon Energy" that has been making products called Tachyon Energy Beads. These have a use-by dated have been around since about 1995/6. The second is an American company called "Tachyon Technologies" that has been marketing products since about Z002/3. They have products that are similar to "Tesla's" but the real effects of these are not as pleasant. " \n\nThe physical body is almost wholly electrical, chemical & mechanical. The medical profession seems to have forgotten this, & they work mainly on the chemical side. " \n\nUp until now the scientific community has only recognised what their 5 senses show them. The energy field around all living things cannot be seen, smelt or felt with our 5 senses; this has caused a big conflict between science & those of us who use our extra senses. " \n\nUnderstanding Tachyon & Photon Energy gives you an understanding of the electrical aspect of our body. "With the development of Kirlian & Aura photography, the physical world can now see the energy fields around all living things. This energy field is called the aura, which is really pure Photon/Tachyon Energy. \n\n"Dis-eases such as cancer & arthritis are really electrical problems within the body caused by an imbalance in the human energy field.\n\n"Dr Wilhelm Reich, in the 1950's, made the discovery that cancer & arthritis were electrical diseases. He claimed these diseases could be cured with Orgone Energy, described by him as being Universal Energy. Dr Reich trapped this energy in an Orgone Accumulator, which was made by alternating organic & inorganic matter. The problem with this was Dr Reich's use of iron, which created its own unnatural magnetic field & has an unbalancing effect. Also Orgone Energy is not a pure form of Photon/Tachyon Energy. Electromagnetic energy cannot be seen, tasted or touched. The "scientific" leaders of the day & the F.D.A would not believe Dr Reich's work. He was consequently jailed & his books destroyed. He died in prison 6 months later in 1957.
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please (2 pdf documents)\nhttp://physics.angelo.edu/~dbixler/phys3444lab4new.pdf\nhttp://physics.angelo.edu/~dbixler/phys3444lab8.pdf
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hmmm, i think they are made from tachyons
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Actually, the wiki on this one is unusually good (and right, for once):\nhttp://en.wikipedia.org/wiki/Cosmic_string\n\nCosmic strings are sometimes confused with the strings of string theory.  There's considerably more observational evidence for the former than the latter. \n\n(I say they're different things, but every time someone like me says something like that, some party-pooper like Bohr comes along and makes a liar out of us.  There's a chance, in my mind at least, that they could be closely related somehow since, supposing either of the things even exist, they're both topological defects in space.  But, that's pure conjecture on my part).\n\nMichio Kaku of the City College of New York has written on both.  If you're looking for something on string theory, and not cosmic string theory, Barton Zwiebach has written the only introductory book worth reading.  If you really did mean cosmic strings, there are several recent journal publications listed in that wikipedia article (and they're all, for once, actually referreed journals).\n\nAs an aside, I see a lot of people posting on both of these around here as though they were somehow proven fact.  There is almost no observational evidence for cosmic strings, and there is none at all for string theory.  There isn't anything wrong with thinking about things like this -- that's where new answers come from.  It's just that I'd like to see the certainty levels turned down a bit.  In the case of string theory, the theory is in much better shape than it was a few decades ago, but it still has no real central theme, it has no real sharp predictions (like the Higgs-Boson, for example, of the standard model of particle physics), and absolutely no experimental verification or support of any kind.\n\nIt just kind of torques me a little that so many people run around on these boards decrying the theory of evolution as unproven, wild-ass conjecture (when, in fact, the evidence supporting the theory of evolution has been more exhaustively catalogued than it has been for probably any other theory in history), while still others are lauding string theory as something as sure as Maxwell's equations.  String theory is a fun idea, and probably a necessary one, but it isn't a sound idea just yet.
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Its hard to answer w/out knowing your background, check out the link.\n\nThere are two types of particles in nature - fermions and bosons. A fundamental theory of nature must contain both of these types. When we include fermions in the worldsheet theory of the string, we automatically get a new type of symmetry called supersymmetry which relates bosons and fermions. Fermions and bosons are grouped together into supermultiplets which are related under the symmetry. This is the reason for the "super" in "superstrings".\n\nTutorial on Superstrings:
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Well, if you want to break it down even more, the universe only consists of minscule, vibrating strings.  At least, that's the most widely accepted theory in fundamental physics right now.\n\nThe beauty of it all is how much complexity can arise from such simple fundamentals.
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I can't help with Unified Theory, but here's the way a professor explained string theory to me.\n\nImagine that you have a tightrope, and that an elephant is walking on it.  To that elephant, there is only one dimension - the elephant can move forward, and it can move backwards, but it can only move along that straight line.\n\nNow picture that same tightrope, but instead of an elephant, an ant is walking along it.  Like the elephant, the ant can also move forwards and back along the tightrope.  However, the ant can also walk all the way around the tightrope (apparently ants are good at clinging to things while upside-down).  For the ant, there are two possible dimensions - the forward and back one, and the around one.\n\nString theory is basically the idea that there are more dimensions than we realize.  We as humans are the elephant of the previous example - we see only three dimensions, with a potential 4th in terms of time.  According to string theory, there are ants in the world that can access more than these three or four dimensions that we are aware of.  String theorists are currently trying to prove that this is the case.
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Now here is someone I want to meet.  One of the very few questions in 3 days in physics that I don't have a clue..for sure I know what a tachyon is and a brane.  \n\nI think if you were to include the word GOD you might attract some of these religious fundamentalists.  You'll get all kinds of answers and quotes from the Bible.  None of them will be correct but you might get some good laughs reading all their dribble.  \nAnother good bet would be to hitch a ride to Cambridge, Ma. and just start skulking around MIT (don't laugh I used to do it).  Eventually somebodies going to have an answer.  \n\nOr you could try the infinite monkeys with the infinite typewriters gig (used IBM selectics are quite cheap these days) , one of them is bound to get it whitin an infinite amount of time.
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Two things that I recall:  the detection of the Z0 boson (a bottom quark bound to a bottom antiquark; bottom quarks conserve a mathematical thing called 'beauty'; when CERN announced this, the headlines read, "CERN physicists detect naked beauty."  Sigh, probably the only article about particle physics some folks read...); and the measurement of the mass of the tau particle.\n\nNo doubt others, but I recall those two
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Tachyon is the name given to any hypothetical particle that would move faster than the speed of light.  They may exist, but we have never detected them, and if theory holds we can't.  The speed of light is an "upper limit" on the propagation speed of normal particles and particle-like things that we deal with, if you add energy to a particle it goes faster.  Tachyons on the other hand have the speed of light as a "lower limit" of propagation, and as they gain energy they travel slower.
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The latest developments are very technical and hard to translate into non-mathmatical terms that lend themselves to this format.  Check the physics journals for the latest (see the link below).\n\nIn general lay terms, some of these developments include time evolution, D-branes, a variety of developments on tachyons, guage fixing, and time lumps.
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The term "ghost particle" usually refers to a subatomic particle known as a neutrino.\nhttp://en.wikipedia.org/wiki/Neutrino#Neutrino_sources\n\nOccasionally another theoretical particle (none have ever been observed) is called a ghost particle -- the tachyon
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You know, this is so easy to answer with a simple web search that I somewhat annoyed that you bothered to ask it here. Do you not know how to use google or yahoo or altavista?\n\nThese two postulated but undiscovered particles are completely different and have completely different properties. For example:\n\nThe postulated Higgs Boson produces mass.\nThe postulated graviton transmits gravitational force between things with mass.\n\nThe Higgs Boson has spin 0.\nThe graviton has spin 2. \n\nThe Higgs Boson has a nonzero rest mass. \nThe graviton has a rest mass of zero. \n \n\nAnd so on.
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Its actually derived from Maxwell's Wave Equations, see source. Its too complex and requires mathematic symbols, so I can't type it here.
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They can't be explained. That's why the aforementioned string theory hasn't met a wide acceptance. There are other difficulties with string theory, but they would take a while to explain.
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MitchHellman has the best answer!\n\nBut just cuz....a tachyon (theroetical particle) cannot travel *slower* than light. An effect called phase velocity (wave mechanics) can also travel faster than light, but these things are not real in our normal sense of the word. But these are some things people do discuss which have this property.\n\nOtherwise.......no.\n\nlol
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According to classical physics 3: length, wideth and depth.\nModern physics add to that a fourth dimension - time.\nThose we now for certain exist. But there could be more (as much as 10 or 11 according to superstring theory).