They say that everything in thw world is made up of matter, why is it not made up of antimatter? Explain !!!!!

Answer 1

This is a good question, and the above answers don't do it justice. Matter is made of atoms, which are made of protons, neutrons and electons. These particles have electric charges. (The neutron doesn't, but it is made of quarks that have charges.) Paul Dirac, a famous physicist, theorized that for each of these particles there could be a particle with the same mass but opposite charge. He called these antimatter. He further proposed that atoms could be made from these antiparticles, and elements could be made of these atoms that could constitute stars and planets in part of the universe. He also proved that if matter and antimatter ever contacted each other, they would both be totally annihilated.

Since then, scientists have been looking for antimatter in the universe, and haven't found any. However, they have produced it in particle accelerators.

The question is why is there no antimatter in the universe. And the answer is nobody knows. In fact we don't know for sure that there isn't antimatter around. We are pretty sure that our galaxy is made up of matter, but we can't be sure that there aren't any galaxies out there that are made of antimatter. Antimatter looks exactly like matter from a distance. However, most experts today believe that there is no antimatter in the universe, because it was all destroyed in the first second after the big bang.

The theory is that matter and antimatter were both created at the start, but for some reason there was a little more matter than antimatter. All the antimatter was destroyed by contact with matter, which was also destroyed, but a relatively small amount of matter was left, and that is what makes up the universe as we know it.

The link below has a lot of good info on the subject.

Answer 2

The stuff of everyday life could be called antimatter, for all the difference that it would make, but irrespective of the nomenclature, there is only one form of stuff out of which things are made, and we call it matter for convenience. Antimatter wasn't even invented as a concept until the last century; positrons are fairly easily made, but anti-baryons are much more difficult because of the high energies required. A few antimatter atoms have been made; they are hard to keep around as they go poof! in any contact with normal matter.

Answer 3

Antimatter is the opposite of matter.
Matter is a cluster of cells and chemicals that are bought together to make an object or life form.
If you introduced antimatter into a life form it would be forced appart or probably explode.

Answer 4

This is a relatively simple answer. According to the Anthropomorphic Principle, we see all objects made of matter and not antimatter because that's what we named them. In other words the A.P. states that the universe is the way we see it because we see it that way. Since every particle has an anti-particle, we can look at the universe as being comprised of anti- matter. However, for the sake of science, we chose to call matter what it is and anti- matter what it is.

Answer 5

This is called the symmetry problem, and it's one of the biggest open questions in cosmology. See the second reference for some ideas on why.