Is Anti -matter  a misnomer?
542057
Antimatter is as real as matter itself, just ask particle physicists\n\nThe reason we do not have much of it around us is that it annihilates with matter, so our world now is matter dominant.
85426
nothing what's the antimatter with you! seriously though if you mean antimatter, it's a form of matter in which most of it's properties are reversed.
727032
It has been long speculated that there exist a type of matter called "negative matter." Note this is NOT anti-matter, which behaves just like ordinary matter except it has equal and opposite charge and spin. "Negative matter" exerts repulsive gravitational force. It does not annihilate when in touch with ordinary matter, but it actually is NEVER in contact with any ordinary matter due to this repulsive or anti-gravitational force.\n\nThe concept of "negative matter" was introduced by physicist "Kip Thorne" back in the 1980's as one possible solution to Einstein's General Relativity equation that allows for time travel through a worm hole. One way to contruct such a time machine is to put together two parallel plates that will leverage the Casimir Effect and create the "negative pressure" the others have mentioned to enlarge the quantum wormholes that exist at the Planck scale, and then use large quantities of "negative matter" to keep the mouth of the wormhole open and stable.
1012180
Personally I think the reason that there is less antimatter than matter has something to do with the arrow of time.  The last time I checked there was still not a very good explaination of why there is more matter than antimatter.  Its still an outstanding problem in physics.  Its a subject that, as a physicist, I'm very interested in.  Who knows, maybe you'll come up with an explaination.
480431
Yes. Part of the idea of antimatter is in some equations containing squares, to solve for that variable you must have a positive and negative answer. Therefore an opposite or anti- thing must exist. Antimatter in this case. So if the E=mc^2 works for matter than it should work for anti-matter.\n\nHowever, as the theory of antimatter states - rather than be like matter where something travelling the speed of light can produce matter and mass, the antimatter will become energy and destroy mass when it comes in contact with matter. \n\nHope that makes some sense. Antimatter is an annoying thing.
122397
energy is not a state o the matter - substance it's what the matter is made of
259865
No one knows.  It is believe it formed from photons of light.  However, scientist are not puzzled on how it happened but rather its byproducts, matter and anti-matter.  For every particle, there is an anti-particle.  In theory, if anti-matter comes in contact with matter, it cancels itself out.  Meaning, if anti-matter existed in our Universe, we wouldn't be here.  Our Universe seems to made only of matter.  So where is this anti-matter?  \n\nI read an article that there was some evidence to prove that matter pops into our Universe seemingly out of nowhere.  I wish i could find more information on it but I can't.  Below is an easy to read article.  It's all fascinating stuff and it is written in easy to understand language.  \n\nhttp://www.pbs.org/wnet/hawking/mysteries/html/gleiser-1.html\n\nhttp://www.pbs.org/wnet/hawking/html/
811846
There are many ways to create anti-matter. Here are some natural sub-atomic processes that can produce anti-matter:\n\n γ →  e+  +  e-  (gamma ray becomes positron/electron pair)\n\nC(11) → B(11) + e+ + Ve (Carbon-11 becomes Boron-11 plus a positron and a neutrino Ve - this is commonly known as beta plus decay)\n\np + A →  2p + p- + A (cosmic ray protons collide with atomic nuclei A and produce additional proton/anti-proton pair)\n\nπ+ →  e+ + Ve (pi meson decays into positron and electron neutrino)\n\nu+ → e+ + Ve + Vu- (antimuons decay to a positron, an electron-neutrino, and a muon-antineutrino)\n\nSo basically, we can either collect anti-matter via natural sub-atomic particle decay processes or through high-energy particle collisions (usually in high-energy particle accelerators like CERN). The method used in anti-matter confinement is the use of very strong magnetic fields called magnetic bottles which are usually in the shape of torus ring, and the anti-matter is propelled to move in circles inside the torus continuously.
938332
I think you mean at the atomic level, but still the answer is no.\n\nOne counter example would be positronium. This is when an electron and its anti particle, a positron, "revolve" around each other.  This is very unstable with a half-life of about 10^-7 seconds. \n\nThere are other exotic atoms of this type. Any atom formed by a particle and its anti particle is called an onia.
647158
no.  The most anti-matter they can produce at one time is incredibly small, only a few particles the size of electrons.
375283
The quark hasn't yet been split, so noone knows what they are made of. It is possible that quarks aren't made of smaller particles.
894559
Anti-matter is one of the best bridges between theoretical and applied physics. In theory it was thought it could exist, so we looked for it and found it, then we we able to make it in the lab and it was the same as we found in nature, though very rare. Anti-matter is made the same way ordinary matter is made, with protons, electrons and neutrons; the main difference being each anti-particle has the OPPOSITE charge of its ordinary matter counterpart. So an atom of anti-hydrogen is made of one negatively charged anti-proton and one positively charged anti-electron. As for neutrons that have no charge, they can be distinguished by their opposite spin. The basic reaction is that when a particle of matter contacts a particle of anti-matter, they are mutually annihilated in an almost complete matter to energy conversion. That's where that E=mc2 comes into play  One of the more interesting topics for discussion is that if we assume the original Big Bang created equal amounts of matter and anti-matter, which would satisfy conservationism, then where is all the anti-matter? Are there whole galaxys made of antimatter?  Is that where the new galaxies are formed? As for practical applications, a controlled, large scale matter / antimatter reaction would be an enormous source of energy. maybe enough to power a starship.
574682
Grassmann numbers are used in formulating Lagrangians for supersymmetric theories of fundamental particles. So, while they aren't used for all anti-matter calculations, they are used for some of the more modern theories. \n\nThe evaluation of vacuum diagrams in supersymmetry is an active area of research. I'd suggest a good book on fundamental particles (say Peskin&Shroder).
992429
Hi bornsmartgal\n\nThe antimatter created in the very early universe annihilated with matter created at the same time.  When a matter particle and its antimatter counterpart meet the annihilate and produce energy (eg a collision between an electron and positron produces two back to back photons).  In the early universe there was a small over abundance of matter over antimatter (one billion and one matter particles for every one billion antimatter particles).  After the annihilation this leaves matter left over (plus a billion photons for every matter particle!)\n\nThis initial over abundance of matter over antimatter is puzzling - the difference between matter and antimatter is a reversal of charge and particle physics is largely symmetrical to charge reversal. Physicists have been looking for an asymmetry in nature which will explain the over abundance, and have finally found a few such events (called charge-parity symmetry violations).  It appears nature isn't totally symmetrical after all.\n\n\nHope this helps!\nThe Chicken
20450
Propulsion Techniques Anti-matter\n\nAnti-matter is explosive stuff! In a scientific sense, it is the opposite of the normal matter which comprises both us and our surroundings. Every type of particle in nature is thought to possess its own anti-particle – which will have the opposite charge to the particle itself. Originally theorised to exist by scientists in the first half of the 20th century, the fact that a matter/anti-matter reaction releases a hundred times more energy (per mass of fuel) than even the most powerful nuclear reaction quickly brought it to the attention of the science-fiction genre. “Star Trek” is probably the most obvious example of the basic use of anti-matter in science fiction. Star ships of the Federation use stores of anti-matter as their source of fuel, so that their ships are powered by a matter/anti-matter reaction. \n\nSometimes the use of anti-matter was as straightforward as being the ultimate rocket fuel, for example in the anti-matter rocket starships in Peter F. Hamilton's “The Nightsdawn Trilogy” (1990s). On other occasions, anti-matter has been viewed as the natural successor to nuclear reactors as the source of power of the future, a prime example being the “Starship Enterprise” from the 1960s television show “Star Trek” (not to mention its sequel series and film spin-offs). The “Enterprise” contained a central reactor core which powered the entire ship in which matter and anti-matter were mixed, releasing enough energy to boldly go where no-one had gone before! \n\nSome science-fiction authors have even asked what-if questions about anti-matter. In the book “Traces”, Stephen Baxter explores the idea that anti-matter might exist in space as large chunks of “anti-ice”, which could be mined and mixed with large volumes of normal water to provide, in the case of the story in question, an awful lot of steam power.
912086
(m)\n\nMatter which consists of antiparticles, elementary particles of ordinary matter, such as protons and electrons, but have an opposite electrical charge. For example, an antiproton has a negative charge while a proton has a positive charge. When a particle of matter and a particle of antimatter come into contact with each other they are destroyed, releasing energy.
829810
Imagine an atom where the protons have a negative charge, and the electrons have a positive charge.  That's antimatter.  Minute quantities have been created in the laboratory, but it has to be stored in a magnetic bottle, since any contact with normal matter causes the antimatter and an equal quantity of matter, to be converted to energy.