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Why is there far more matter than antimatter in the visible universe?
It may have to do with the way the universe was created. Certainly if there was a lot of antimatter created, much of it may well have come in contact with matter through the billions of years the universe has existed. That would have resulted in the conversion of that antimatter (along with a like amount of matter) into energy. There may not have been much antimatter around to begin with, too. But, since the amount of visible matter represents less matter than has been calculated to exist in the uinverse, it may be that there is a good bit of antimatter out there somewhere. Not likely, but possible.
How many people like the idea of antimatter?
Antimatter is real. Liking or disliking it is irrelevant.
What are the disadvantages of antimatter?
The main disadvantage about antimatter is that it must be held away from its "ordinary" particle, preferably in a vacuum. This is because when they come into contact they completely eliminate each other. It's like if you add 1 with -1 it makes zero. However, if held properly, it can be excellent for research as we currently know very little about it. For example we don't know why there is so much more ordinary matter than antimatter.
At what temperature does antimatter form?
It isn't a matter of temperature. It is created in high-speed collisions like those observed in the hadron particle collider. Antimatter is naturally occurring. It has only been created in minute amounts and costs a fortune. One kilogram of antimatter would create an explosion with the power of a 20 megaton nuclear bomb.
What is the role of gravitational force between matter and antimatter?
Sir Issac Newton proposed theory of gravity. He formulated the relation between the force of gravity and the mass and the distance between the masses. This theory failed to explain as to why there is attraction between the masses and not repulsion. With every attraction you have to have corresponding repulsion. That problem is resolved with the discovery of antimatter. So like attracts like. So matter attracts matter and antimatter attracts antimatter. This fallows that matter repel antimatter. So force of gravity between the two masses of matter or two masses of antimatter is directly proportional to the product of masses or anti-masses (Antimatter). The force of repulsion will be directly proportional to the product of mass and anti-mass (Antimatter). It fallows that the force of repulsion is inversely proportional to square of distance between the two.
What is a positrin?
A positron is the antimatter counterpart of an electron, with a charge exactly opposite to the electron. Like other antimatter particles if it comes into contact with its matter counterpart the two will mutually annihilate.
How do you produce antimatter?
Basically, the process involves creating a concentrated release of energy from the collision of atomic particles with atomic nuclei, such that "pair production" occurs: 1 particle of matter and 1 particle of antimatter. It is possible to contain antimatter (positrons, anti-protons) within a magnetic field. Some of the links below may be helfpul. As you'll note, it takes some pretty sophisticated equipment, and not a lot of it has been made.
What will the world look like if there is no universe?
Without a Universe, there would be no world, either. "World" can refer to:* The Universe itself * Planet Earth, which is part of the Universe
IS POSITRON IS NUCLEON?
No, a positron is not a nucleon.The term nucleon is applied to one of the two constituent particles that make up the nucleus of an atom. Those are the proton and the neutron, which are baryons.Whereas, positrons is a subatomic particle having the same mass as an electron but with an electric charge of +1 (an electron has a charge of −1).It constitutes the antiparticle of an electron. We don't see antimatter particles of any kind hanging around long in our "reality" here. (They "combine" with their antiparticles, and mutual annihilation will occur.)Should we investigate an antimatter universe, the positron will orbit the nucleus of an antimatter atom, just like the electron does in the atoms we look at. Naturally the nucleus of an antimatter atom will be composed of anti-protons and anti-neutrons.
Is anything more expensive than antimatter at 62.5 billion dollars?
well, i think yes. Antimatter is produced when high energy particles collides like when cosmic rays impacts with the earth's atmosphere. Antimatter will immediately annihilate when it comes in contact with matter so it's almost impossible to collect. But antiparticles can be created artificially in the cyclotrons like in the ATHENA project at CERN. another challenging problem is how to store antimatter, the Penning Trap (used for charged particles) and the atomic trap(used for uncharged particles) are specialized device to store antimatter. running the CERN is costing billions of dollars. estimations points to 62.5 trillion dollars to produce 1 gram of antimatter. so far, i think it would be the most expensive substance ever made.
Why light has dual character?
WHY does light have a dual character? As far as we can tell, in our Universe, it just DOES. There's nothing about our Universe that would require that light sometimes behaves like a particle, but, whether we like it or not, in our Universe it does.
What would your planet be like without sun?
it would be a piece of mass....roaming in the space(universe)
