Anti-matter — 82 discussions

Does Hawking radiation account for the parity imbalance between matter and anti-matter? Do Black Holes create matter? If a matter/anti-matter pair materializes on either side of the event horizon of a black hole: 1) if the matter particle is on the inside of the event horizon, the mass of the...

If I have bar magnet made of anti matter is the B field the same as regular matter and would their north poles repel and so on ?

Is it possible that a far off galaxies that we are unable to reach are made up of anti-matter? How do we know that they are made up of matter?

Are a anti-matter black-hole, matter black hole, different? Thank you for any help.

What kind of theoretical explanations are there? And can we prove any of them? I mean this asymmetry is like the asymmetry in humans who write in their right hand rather than their left hand (I think that statistically there are more right hand writers), I don't think there's an...

Lets say anti-matter is less sparse than it currently is. What would happen if two singularities one of matter and one of anti-matter were to merge? Anything special, or the same thing that happens every time matter and anti-matter merge?

at Fermi lab they create anti-matter or I guess they don’t create it but they synthesize it , where do they keep it so it doesn't react with regular matter and produce light.

Hey, First off note, I did not see the movie yet (so please don't spoil any of it for me :p ), I am merely talking about the book. In the book Angels & Demons, a 'blob' of anti-matter is stolen and used as a bomb. The blob is very small (but still visible to the naked eye) and in the book it...

Suppose a galaxy out there was made entirely of anti-matter and never comes in contact with normal matter would be able to tell that it is made of anti-matter and not matter? If yes how would we do it?

I am planning to do a proposal about capturing anti-matter and containing it by creating a trap with light. I figured I want to use light because if I use magnetic or electric fields then I would only be able to capture charged anti-particles. My goal is to capture anti-atoms by using a light...

I was watching a documentary about Paul Dirac and his work and I have a pretty basic question. Matter is made of sub atomic particles that comprise atoms. The proton is the opposite of an electron, but an electron is not an anti-proton. Why do Dirac's equations predict anti-matter...

Making the round of tech sites everywhere, is news of some LLNL breakthrough that could enable the efficient/cheap production of anti-matter: https://publicaffairs.llnl.gov/news/news_releases/2008/NR-08-11-03.html Well, seeing as how you can't get a higher-energy-density fuel than...

if a particle of matter and anit-matter collide they are annihilated. Does this violate the laws of thermodynamics? Got to thinking about it while reading a brief history of the universe.

I imagine it must...Could we have dark anti-matter in our universe that doesn't interact with ordinary matter? Would this example say Baryon asymmetry?

Hi, We are learning particle physics at the moment in school. My teacher was telling me that when matter meets anti matter, they annihilate each other out. My question is what happens when an anti proton meets a positron or when an anti neutrino meets an electron. Would they annihilate each...

I have a question regarding anti-matter in which ways can it be created? I got into a heated argument with someone last night. He's a first year university student and he was trying to tell me that we can create it by accelerating particles to the speed of light and making them collide. I know...

Any suggestions to what the largest anti-matter object would be? Would it be just anti-particles, or would it be anti-hydrogen, or anti-carbon, larger anti-atoms, or multiple anti-atom object, or anti-one_kilogram object, or anti-planet, or antistar, or anti-galaxy, or anti-cluster, or...

Probably a dumb question, but I have never had it explained to me. I was just wondering if someone would be able to tell me what anti-matter is, from basics, how it is formed and how it interacts with normal matter. -Johnson

Mater Annihilation --matter v.s. anti-matter-- hey all, in the study of "massless particles" such as the electron and the and the positron. in beta decay (beta plus) there is an emission of a subatomic particle called the positron (the anti-particle of the electron) my thought is...

I was reading about what would happen if an Anti-Matter star and Matter star collided. What I read says the collision would make enough gamma rays to sterilize and entire eighth of a galaxy of life. Yet, I thought about something, when the two collide, their surfaces would touch first. (Duh) So...

Hello all, I'm new here, and I don't know where to post this. So please move if in the wrong section. I'm a 15 year old and I know nothing of this, I've read some articles but it still confuses the hell out of me. I'm wondering what it's all about, how it's formed and what happens to...

http://www.nasa.gov/centers/goddard/news/topstory/2006/antimatter_spaceship.html" Where are they going get anti-matter and is this even possible with technology we have now

Hey guys, many a time have I heard about anti-matter, but could someone kindly explain to me please in laymens terms, just what it is, and how it forms?:rolleyes:

I am curious as to how a single anti-matter atom looks, say anti-hydrogen. Further, Assuming you had the resources what would a visible (to the naked eye) molecule look like?

Information?..if so, according to the Hawking Process..where has all the information gone? Question, information passing via a Quantum Channel, or tunnelling process will degrade the information being relayed. Just as a Macro-Observer intergrating with a Quantum of anything, will collapse...

weapons? :http://arxiv.org/abs/physics/0507139

hi all. I am new, and am bursting with questions about everything. I've always been interested in quantum physics, however, have never had enough knowledge to do anything about it. But I am in high school! :smile: and after getting bored in our energy and machines physics course, i decided to do...

if matter and anti-matter are highly explosive when they collide, then how come there hasn't been a second big bang? where has all the anti-matter gone, if there were equal amounts for the big bang, then why is there matter, but apparently no anti-matter sorry if i got something wrong here

anti-matter "clumps" I was recently reading an article about the US Air Force creating advanced weapons using anti-matter particles (positrons, specifcally). It got me to thinking... What I'm curious about is this: are there macroscopic "clumps" of antimatter particles? In other words...

Hello, I'm new here and I have a question about anti-matter. Does annihilation occur when a particle and it's anti-particle touch, or does any combination of particles and anti-particles annihilate? Can someone help explain this to me?

okay, the electromagnetic force affects antimatter and matter oppositely. (and I'm just guessing the same could be said for the electroweak and weak forces as well.) Now, does gravity affect antimatter the same way it affects matter? Or, maybe i should say, does gravity act as a repellant...

Before the summerholidays I asked my physics teacher what anti-matter is and like always she didn't know . So now I'm asking you guys if you know exactly what anti-matter is and how we can make it useful. I thank you in advance, Astrophysics