has anti matter been made yet?

Answer 1

Absolutely. Antiparticles are made artificially in large quantities every day in the world's particle accelerators. Atoms composed of antiparticles are harder to make, but this has been achieved on numerous occasions. Furthermore, positrons (the antiparticle for the normal electron) are produced naturally on Earth by the decay of K-40, a naturally occurring radioactive isotope of potassium. (K-40 actually has two decay modes; 89.3% of the time, the nucleus decays by emission of a positron resulting in the formation of an Ar-40 nucleus , in the remaining 10.7% of the decays, the nucleus "captures" an atomic electron, resulting in the formation of a Ca-40 nucleus.)

Answer 2

Anti matter is like the common ordinary stuff around us, but it has the opposite electrical charge of ordinary matter. For example, an anti-electron or positron has a positive charge, and an anti-proton has a negative charge. If antimatter comes in contact with matter, they annihilate each other with explosive enthusiasm.

Supposedly some was made during the big bang, I think. Humans can make tiny amounts in atomic accelerators, too, I think.

Answer 3

I've seen this question on this site quite frequently.


In particle physics, antimatter is matter that is composed of the antiparticles of those that constitute normal matter. 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 came to exist on Earth outside the confines of a suitable physics laboratory would almost instantly meet 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.

Answer 4

No anti matter has not been made yet. In fact, its existance has not concretly been proven. Scientists only speculate that it exists because SOMETHING is there, but they can not see, identify, or define anything in its place. However, hollywood has blown this all out of proportion. While it is true that an electron and a positron (the "anti-matter" version of an electron) both cease to exist when they collide, it is not true anti-matter because it can only destroy one thing: Electrons. Hope this helps

Answer 5

Yes, it has. But only as a few molecules...and i mean a few...

Because anti matter reacts with average matter in a very, VERY explosive way, unless an absolute vaccum is setup before the antimatter is 'created' it will react and explode.

This is cos everything on this planet and probably in this solar system is made up of average matter, antimatter will react with any and everything...even air.

Theroetically, half the universe is anti matter...

Answer 6

no, anti matter is not still theoretical....and yes it has been made, we have actually made it on earth, however due to its EXTREMELY unstable make-up we can only make a few atoms at a time and even that doesnt last long.......one of the last solar flares a few years ago created about a pound of anti-matter, which is enough to power the entire united states for about 2 days.

Answer 7

A few particles only, which don't last long because they annihilate as soon as they come into contact with normal matter. I think about a dozen anti-protons have been deliberately created. Warp drive is a long, long way off yet!

Answer 8

Anti-matter has never been defined. Matter could be anything. So anti-matter is nothing. That's what most people are capable of making.

Answer 9

Yes and no. The artificial production of antiatoms (specifically antihydrogen) first became a reality in the early 1990s. But, not enough has been made and contained in order to make 'matter' out of it: that is, a hunk of it composed of its requisite atoms.

Answer 10

Ooh yay! I know! So HAVE you read Dan Brown's book? Is that why you're asking? It really is a good book. I love this author :) And according to the author's note at the beginning (separate from the fictitious story), it HAS been made.

Have a nice day!