opposite of matter
2006-11-24 17:33:12
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answer #1
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answered by crazzy 4
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Simply put, antimatter is the opposite of matter of course.
Fermi Labs In Illinois has a particle accelerator that spins electrons around very fast. Electrons are negatively charged, but when they collide at high speed, they turn positive. This is what is called antimatter.
It is hoped to be used as an alternate fuel, and of course in weapons.
2006-11-25 01:38:49
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answer #2
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answered by Hmmm... 2
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In particle physics, antimatter extends the concept of the antiparticle to matter, wherein if a particle and its antiparticle come into contact with each other, the two annihilate —that is, they may both be converted into other particles with equal energy in accordance with Einstein's equation E = mc2. This gives rise to high-energy photons (gamma rays) or other particle–antiparticle pairs. The resulting particles are endowed with an amount of kinetic energy equal to the difference between the rest mass of the products of the annihilation and the rest mass of the original particle-antiparticle pair, which is often quite large.
Antimatter is not found naturally on Earth, except very briefly and in vanishingly small quantities (as the result of radioactive decay or cosmic rays). This is because antimatter which comes to exist on Earth outside the confines of a suitably equipped physics laboratory would inevitably come into contact with the ordinary matter that Earth is made of, and be annihilated. Antiparticles and some stable antimatter (such as antihydrogen) can be made in miniscule amounts, but not in enough quantity to do more than test a few of its theoretical properties.
There is considerable speculation both in science and science fiction as to why the observable universe is apparently almost entirely matter, whether other places are almost entirely antimatter instead, and what might be possible if antimatter could be harnessed, but at this time the apparent asymmetry of matter and antimatter in the visible universe is one of the great unsolved problems in physics. Possible processes by which it came about are explored in more detail under baryogenesis.
2006-11-25 01:32:40
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answer #3
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answered by Dark Knight 3
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antimatter is basically an antiparticle that when it comes in contact with it's counterparticle, disappears on contact.
For example, an electron's antimatter counterpart is the positron. When they collide, both particles disappear.
The proton's antipartical is the anti-proton.
Antimatter is created by black holes and particle acclerators.
2006-11-25 01:34:04
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answer #4
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answered by diburning 3
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Anti-matter is exactly the same as "regular" matter. The ONLY difference between them is electric charge. If a particle of regular matter, like an electron, has a negative charge, then its anti-matter equivalent, the positron, would have a positive charge. Whenever anti-matter and matter come into contact they immediately annihilate each other.
2006-11-25 02:22:26
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answer #5
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answered by Chug-a-Lug 7
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