Check out this link on Antimatter
http://en.wikipedia.org/wiki/Antimatter
2007-07-21 00:53:47
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answer #1
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answered by vasudev309 2
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Yes, there is. It was first proposed by Paul Dirac when he was trying to understand the quantum nature of how light and leecgtrons interact. He found that there was another solution to his equations that corresponded to a positively charged particle that otherwise was the same mass as the electron. If the electron and this particle (the positron) collided, they destroy each other and emit some gamma rays.
Since that time, corresponding versions of all the standard particles have been found: anti-protons have negative charge and are the same mass as a proton, anti-neutrons are neutral and have the same mass as a neutron. In each case, when the anti-matter version of a particle and the matter version collide, they destroy each other, turning the mass involved into energy. For more complicated particles such as a proton, this energy does not have to be purely in the form of gamma rays (although they are produced). Other particles can also be made.
Some particles are their own anti-particle (such as the neutral pion and the photon). There is a technical sense in which an anti-particle can be thought of as the original particle going backwards in time, with opposite charge.
It is technically very difficult to store anti-matter because of the tendency to be destroyed when it comes into contact with matter. For this reason, we have only produced in in particle accelerators and in very small amounts. At this point, we haven't even been able to get a positron and an anti-proton together to produce anti-hydrogen.
2007-07-20 01:45:40
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answer #2
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answered by mathematician 7
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I have read some stories about anti-matter and seen it referenced in a few theories, but in all honesty, I have never seen any Anti-Matter, anywhere. As I recall, the theory is pretty good, but the actual production phase of anti-Matter is where the rubber meets the road. Given that you have this elaborate production line set up to produce it, when you go to bottle it, can it, capture it, snare it, or otherwise store the finished product, you cannot use something made of Matter for that purpose. The reason is simple 1 Anti-Matter plus 1 Matter = Zero. So, the Production Line would run and run, but never produce anything. You would use up a ton of cans or jars and still have nothing. The little tubes and chutes directing the Anti-Matter into the jars or cans would start evaporating in front of your eyes for no apparent reason. eventually the production line equipment would start to disolve into nothing.
2007-07-20 01:49:19
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answer #3
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answered by zahbudar 6
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Yes.
Antimatter are particles that have the same property as their normal matter counterpart, except that the charge is reversed.
A positron is just like an electron, but with a positive charge.
An anti-proton is just like a proton, but with a negative charge, and is made off antiquark. Which allows the existence of an antineutron, same as a neutron, with zero charge, but made of anti-quarks with reverse fractional charge to those constituting a neutron (it will at least have a magnetic moment opposite that of the neutron).
2007-07-20 01:34:49
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answer #4
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answered by Vincent G 7
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Yes, one example is a positron, it is like an electron but it has a positive charge of one. When these two meet they vapourize and produce a gamma ray.
2007-07-23 07:06:39
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answer #5
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answered by johnandeileen2000 7
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To Mathematician....please make sure you check all of your facts! Anti-hydrogen has been produced and studied at CERN for some time now.
2007-07-20 03:31:25
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answer #6
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answered by Professional Physicist 3
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off course! It's there... up... up... up in the universe! Read Angels and Demons!
2007-07-20 01:25:55
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answer #7
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answered by I waltz in coke 2
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