is a black hole where matter and antimatter meet?
357992
i dont believe so, from watching many episodes on nova , i understand black holes to be tinny[ in size] particles of compressed matter , so compressed as to create an astronomical gravitational force so strong that even light cannot escape. i believe most scientist believe it is a large compressed star; a star the size of our sun compressed to the area of a marble or tennis ball which because of its great gravitational force act like a celestial vacuum cleaner... its real esoteric b.s.
339718
Physicists say they have mass produced antimatter, a crucial first step towards precision studies of its properties that may help solve one of the greatest mysteries of the Universe. \n\nAntihydrogen has been made before, but only a few atoms at a time. \n\nNow, the Cern particle accelerator in Geneva, Switzerland, has produced more than 50,000. \n\nAntimatter is the mirror image of ordinary matter and both should have been created in equal quantities at the birth of the Universe. That everything around is predominantly ordinary matter is therefore a major puzzle. \n\nCern is the European Organisation for Nuclear Research. \n\nIn the latest experiment, researchers used the Cern accelerator to create antiprotons and trapped them in a vacuum chamber. \n\nA radioactive source, meanwhile, was used to create positrons, which were held in a separate trap. The antiprotons were then fed into the pool of positrons, where the two combined to form antihydrogen. \n\nThe antimatter was short-lived being destroyed when it bumped into normal matter. Detectors picked up the unique radiation signatures of antimatter as it was annihilated. \n\nAlso see the Wikipedia article: http://en.wikipedia.org/wiki/Antimatter#Antimatter_production
24565
Antimatter or contra-terrene matter is matter that is composed of the antiparticles of those that constitute normal matter. If a particle and its antiparticle come in contact with each other, the two annihilate and produce a burst of energy, which results in the production of other particles and antiparticles or electromagnetic radiation. In these reactions, rest mass is not conserved, although (as in any other reaction) energy (E=mc²) is conserved.\n\nScientists in 1995 succeeded in producing antiatoms of hydrogen, and also antideuteron nuclei, made out of an antiproton and an antineutron, but no antiatom more complex than antideuterium has been created yet. In principle, antiatoms of any element could be built from readily available sources of antiparticles. Such antiatoms would have exactly the same properties as their normal-matter counterparts. The production of antielements in bulk quantities seems unlikely to ever become achievable, however.\n\nPositrons and antiprotons can individually be stored in a device called a Penning trap, which uses a combination of magnetic field and electric fields to hold charged particles in a vacuum. Two international collaborations, ATRAP and ATHENA, used these devices to store thousands of slowly moving antihydrogen atoms in 2002. It is the goal of these collaborations to probe the energy level structure of antihydrogen to compare it with that of hydrogen as a test of the CPT theorem. One way to do this is to confine the antiatoms in an inhomogenous magnetic field (one cannot use electric fields since the antiatoms are neutral) and interrogate them with lasers. If the anti-atoms have too much kinetic energy they will be able to escape the magnetic trap, and it is therefore essential that the anti-atoms be produced with as little energy as possible. This is the key difference between the antihydrogen that ATRAP and ATHENA produced, which was made at very low temperatures, and the antihydrogen produced in 1995 which was moving at a speed close to the speed of light.\n\nAntimatter/matter reactions have practical applications in medical imaging, such as positron emission tomography (PET). In some kinds of beta decay, a nuclide loses surplus positive charge by emitting a positron (in the same event, a proton becomes a neutron, and neutrinos are also given off). Nuclides with surplus positive charge are easily made in a cyclotron and are widely generated for medical use.\n\nAntiparticles are created everywhere in the universe where high-energy particle collisions take place, such as in the center of our galaxy, but none has been detected that is residual from the Big Bang, as most normal matter is.[1] The unequal distribution between matter and antimatter in the universe has long been a mystery. The solution likely lies in the violation of CP-symmetry by the laws of nature; see baryogenesis.\n\nhow much produced it is on and on and on
807824
Antimatter is real and has been created in the laboratory.\n\nTo be honest I don't really know exactly WHAT it is (I never got that far in Physics, that's pretty advanced stuff), I just have a sort of general concept of it.  It has mass just like regular matter, but is not the same -- the two completely annihilate each other if they come into contact.  I imagine it is just a rare type of matter put together in such a way that when it contacts "normal" matter all the whatever-it-is that they are made of cancels out.  But matter can't just cease to exist, it must be converted into something so that something is energy, like in a nuclear reaction when some of the matter of the atomic nuclei are converted into high-energy radiation.
374022
There are already antimatters existing in and outside our galaxy. But the ratio of antimatter to matter is rather small. More often than not, when both matter and antimatter come together, large amount of energy is release. The energy emitted is large enough to create another particle.
76181
It arises around balck holes.\n\nSo-called "virtual particles) can spontaneously arise from nothingness, creating a particle and its anti-particle equivalent.  They arise from nothing, and then usually hit eachother again and are destroyed back into nothing.  If they arise near the event horizon (the point of no return near a black hole, beyond which the gravitational effects are inescapable, even by light), one half of the pair can get sucked in, while the other half can escape.  The escaping particles lead to what is known as Hawking radiation.
467704
i think there are parrallel dimensions that acctually collieded to create this universe, i saw it on the discovery channel.  Then again Dan brown's "Angels and Demons" sets off the idea that there is another parrelel demension exactly the same as our except everything is created of anti matter, the alternate of matter, therefore once antimatter and matter collide, boom both disapate.  They have been able to create anti matter.  (can you mark this as best answer)
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.
1172316
f there were plenty of these, gamma and x-ray astronomers would long since have detected the annihilation 'lines' at 511 kev and 1 Gev of electron-anti- electron, and proton-anti-proton annihilation. This is not seen, so that means that at some time after the Big Bang, any matter and anti-matter managed to segregate itself ( No known way to do this UNLESS matter and anti-matter are affected by gravity in different ways), or that starting from time zero, there has always been an asymmetry in the mater/anti-matter abundance. We know that K mesons decay into more matter than anti-matter end particles, so nature doesn't really treat matter and anti-matter the same way even though these forms are produced in equal numbers during 'pair creation' events. In a previous question I also discussed this.\n\nAs to WHY this is so, so that we only see matter galaxies, we have to say that this is simply the way Nature is. Just as the speed of light is fixed at the particular value it has. No explanations seem possible or likely in the future.
755373
Black holes are a concept in cosmology and theoretical physics.  The idea of going into one doesn't really fit in with the science. \n\nUsing a mechanical model of the universe, black holes are extremely dense concentrations of matter with such a high gravitational force that everything (including light) is sucked in and cannot escape.  If you went near a black hole, you would be broken down into subatomic particles and crammed into the lump of compressed matter at the centre.\n\nHowever, quantum physics gives an alternative theory.  Black holes could be the ways in and out of shortcuts across the universe so that something sucked into one could be spat out of another.  This is probably something best not tried at home.
1172279
The anti matter is actually very unstable. It all got anhilited after reacting with the matter particles. The probability of an antiparticle  encountering a matter particle is very high because the matter is much much more compared to the antimatter, so probably most of the anti matter has already been 'burnt'.
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.
391370
Not really, a solid is usually atoms packed closely enough together so that they bond and form a structure that is resistant to change. Blackhole cores are of collapsed matter: there are no atoms, protons or even quarks. Just like plasma isn't "gas," blackhole material isn't solid
475765
oh, wow, this is a physics question.\n\nto start, we remember E = mc^2\nthe problem gives 4 grams matter and 2 grams antimatter.\nmy solution would be that 2 grams of matter and 2 grams of antimatter annihilate to produce 4c^2 (2 + 2 = 4) energy.\nthe excess 2 grams of matter remains unaffected.\nthe answer is D.
376220
black holes do not face anything they have a great amount of spin \nif two black holes are in the vicinity of each other then they will become gravitationally locked together and spiral around one another being drawn toward each other until they finally merge into one larger black hole at  which time there will be a great burst of graviton waves
1158151
you're thinking of a worm hole. a black hole will, as far as we know tear things apart to as it takes them to a different part of our universe, which doesnt make sense because nothing can escape from them. Anyway, a worm hole, which is theoretical -mostly- is like two black holes connected at their vertex's. think of the universe as a thin sheet of paper. one black hole is is on the right side, and another on the left. fold the piece of paper so that the black holes are lines up. instead of traveling from point A to point B, you just go through space in manner of speaking from point A to point B "just like that". there really isnt any just like that, but that's as best i can describe it with out actually showing you. sorry if this makes no sense.
486631
Assuming this is possible the end positioned inside the event horizon would be broken down into it's individual atoms and would cease to exist.  However some scientists (me being one of them) think black holes are only one end of a worm hole and that when you reach the event horizon you are expelled out of a white hole into another universe.  Think of a white hole as the polar opposite of a black hole, instead of consuming every thing it expels everything