What is Antimatter?

Question

Is there any harm from antimatter?

Answer 1

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 minuscule amounts, but not in enough quantity to do more than test a few of its theoretical properties.


According to my knowledge, there is no harm upto now, since antimatter doesnot exist on this earth.

Answer 2

Antimatter is matter that is composed of the antiparticles of those that constitute normal matter. In 1929-31, Paul Dirac put forward a theory that for each type of particle, there is an antiparticle for which each additive quantum number has the negative of the value it has for the normal matter particle. The sign reversal applies only to quantum numbers (properties) which are additive, such as charge, but not to mass

Answer 3

Lots of harm in antimatter. If you touch it your finger would burn. The only way to keep it is by making it repel from an electrical field. As others said it is opposite of matter. People predict in the future it will be used for fuel in the future for very fast space travel.

Answer 4

Antimatter is a good concept. It consists of substance released during radioactive spontaneous natural decay of matter being of nearly of zero potential and mass so that when indefinite antimatter comes to occupy space in universe no vacuum is filled.

Answer 5

There is no such harm caused by the antimatter if you dont go near it. Also , WHY DO YOU CARE???
R u a research scientist that you hav to care about it.
But dont worry it wont do ne thing if it is not used for wrong purposes (as the Camerlengo intended to do in "Angels n Demons")

Answer 6

Anti-matter is is matter that is the same as what we would consider normal matter, but is the reverse polarity of "normal" matter. It does exist, but only in small amounts in such machines as particle accelerators. I wouldn't worry about it to much. If you encounter enough of it there will be a flash of some kind and the matter that connected with the anti-matter, would disappear, as would the anti-matter.

Answer 7

IT IS REVERSE OF NORMAL MATTER
FOR EXAMPLE NEUTRINO,ANTI-NEUTRINO,ELECTRON,POSITRON

SCIENTIST ARE NOW WORKING ON MAKING AN ENGINE WHICH CAN RUN ON MATTER-ANTIMATTER FUEL

as when these two collide their whole mass isconverted into energy.A VERY HUGE ENERY MANY MANY TIMES TE ENERGY RELEASED IN NUCLEAR FISSIO/FUSION

Answer 8

let us consider an atom of hydrogen it has electron with -ve charge revolving round the nucleus of +ve charge due to proton. antihydrogen means atom of hydrogen with electron of +ve charge moving round the -ve charged nucleus here proton will have -ve charge.

antimatter is matter with composition of just opposite charged elementary particles.
all elementary particles have elementary particles except graviton and photon. they are same as in both matter and anti matter world

Answer 9

its the opposite of "matter".... if you REALLY want to know all about it and not get really bored while doing so, i recommend u read "angels and demons" by Dan Brown.....it's all explained there