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9 answers

Same as the weight of the matter


Antimatter Weight Question

I have been thinking about antimatter for quite a while. It is effectively the exact opposite of matter. Positrons, Negatons, and so forth. If the graviton theory is in effect, wouldn't antimatter therefore have "negative weight" considering it would make "negative gravitons"? Be repelled by itself instead of attracting itself?

Not necessarily. Anti-matter only has opposite charges. Instead of a negatively charged electron flying around a nucleus of neutrons and positively charged protons, you have a positively charged positron flying around a nucleus of neutrons and negatively charged particles.

However, they have produced "anti-hydrogen", and a few other "anti" elements. It's not known, though, whether these elements behave the exact way as normal matter, but it is suspected that anti-hydrogen has the same properties as regular hydrogen.

It was once thought that the massive lack of antimatter in our universe is because two universes were created - one matter, and the other anti-matter. However, unless they interacted with each other, you'd never know. Some even postulated that within our own universe there's anti-matter galaxies.


Anti-matter should behave exactly like normal matter, the only difference being their electric charges, and that if the two should ever meet, they annihilate each other.

As for what do scientists think about the "anti-universe" theory now? Currently they think that for the first little while after the big bang, when there was only energy, that virtual particles and anti-particles were being created all the time, kinda like Hawking Radiation, before promptly meeting another anti-particle and annihilating each other. As the universe expanded though, energy had more room in the universe to travel in, and so the temperature of the universe slowly began to drop. Eventually it passed a critical threshold where these virtual particles would no longer be created. As fate would have it, matter particles existed in just a SLIGHTLY greater number than anti-matter particles, and when the universe "thawed out", it was matter that was dominant.

Of course, you can always say to yourself "maybe WE'RE anti-matter" - but since there's no scales by which to judge, whatever matter is our matter is regular matter, and whatever matter annihilates our matter is anti-matter.


So, short answer, no. These protons and anti-protons are just made of two different quarks, which both obey the same laws of gravity, and so there shouldn't be anything like a "anti-graviton", if gravitons do exist (which I am starting to think do not).

2006-11-20 02:13:14 · answer #1 · answered by Basement Bob 6 · 1 0

The same as a teaspoon of matter. An antimatter what? Hydrogen? Oxygen? There just isn't one antimatter. For example an antimatter Oxygen has the oposite charges of a matter Oxygen.

2006-11-20 02:09:08 · answer #2 · answered by Tyron 2 · 1 0

there is no such factor as 'damaging weight'. Antimatter debris have, for all functional applications, precisely an analogous mass and gravity as commonly used count number debris do. An antimatter version of you're able to weigh in basic terms an analogous quantity you do, and could desire to stay in an antimatter civilization on an antimatter planet with out feeling any distinctive from the variety you do. besides the undeniable fact that, in case you and the antimatter you touched one yet another, you're able to the two explode with the capacity of roughly 375900 Hiroshima bombs.

2016-12-29 06:16:28 · answer #3 · answered by Anonymous · 0 0

Density is independent of whether or not something is composed of antiparticles. You could have a fairly light teaspoon of gaseous anti-hydrogen, solid anti-hyrdrogen (brr) or a very dense teaspoon of anti-neutronium made up of a degenerate anti-neutron mass. Neither of these will be stable for long if your teaspoon is made of ordinary matter, though I suppose the problems with a teaspoon quantity of degenerate matter are pretty substantial whether it is antimatter or not.

2006-11-20 02:09:41 · answer #4 · answered by Mr. Quark 5 · 1 0

The same. Antimatter is when positive particles revolve around negative particles reversing the position of electrons and protons in normal matter. The particles are the same size.

2006-11-20 08:25:33 · answer #5 · answered by gregory_dittman 7 · 0 0

That depends on the type of anti-matter. Every atom of matter has an equivalence in anti-matter. So, anti-hydrogren is still lighter than anti-mercury. They are simply the same atomic structures with opposing charges.

To be certain, we really don't know much about anti-matter as we can only create about a billionth of a gram per year.

2006-11-20 02:09:12 · answer #6 · answered by AresIV 4 · 2 0

The same as a teaspoon of matter and it will depend on wheter you have anti-hydrogen or anti-lead in the spoon.

2006-11-20 02:09:24 · answer #7 · answered by Gene 7 · 1 0

Not much

2006-11-20 03:48:15 · answer #8 · answered by MJM 2 · 0 3

There is no such thing as antimatter.

2006-11-20 02:25:55 · answer #9 · answered by Atlas 6 · 0 6

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