Anti matter Definition and 24 Threads

Dear PF Forum, It's been a while since I logged in PF Forum. And wish you a good health. I'd like to ask a question concerning anti matter. I read in Dan Brown's Angel and Demon that anti matter can be used as energy source. A ha, I said to myself. There were you went wrong mr. Author. The...

I recently got this weird idea of a blade which would work not with matter but with anti-matter. The idea is that an anti-particle (anti-proton, anti-neutron, anti-electron) generator would create a "spray" of antimatter towards a specific direction. Said antimatter would interact and "puff out...

Alright, I have a basic understanding about anti hydrogen - hydrogen annihilation reaction. But what exactly happens if an anti hydrogen atom stumbles into anything else like a deuterium, tritium of helium atom? From my limited understanding, antimatter can only react with its anti-particle...

On the following link it is mentioned that this experiment tests special relativity. Can someone please explain how it does that? http://www.sciencemag.org/news/2016/12/deep-probe-antimatter-puts-einstein-s-special-relativity-test

Dear PF Forum, I've been wondering lately about anti gravity. I read anti matter and came across this: https://en.wikipedia.org/wiki/Gravitational_interaction_of_antimatter And I'm curious to now. Is there really an anti gravity? And I've read this wiki entry...

Dear PF Forum, Can proton be annihilated by anti neutron? Can proton be annihilated by positron? Can neutron be annihilated by positron? Does every particle has to match its antiparticle to be annihilated, example: Proton must be annihilated by anti-proton, not by anti neutron. I've heard that...

Dear PF Forum, In less than 1 second after big bang, baryons were created. And there's asymmetry in it. Can anyone help me? 1. Is it physically possible for a galaxy made entirely from anti matter? 2. If it's true, is it statistically possible for a galaxy made entirely from anti matter? If...

Anti Matter -- Does it exist on Earth? simple question , in this world , is there any anti matter ? sorry my english is terrible thank you:smile:

Are they present in the form of dark-matter?

I had not heard of this, so I thought others might be interested. I thought that all natural Anti matter had been lost at the beginning of the Universe, but apparently there is a 10000 light year cloud of anti matter near the center of our galaxy...

I was watching a programme on anti matter 'discovery' whereby a guy claimed that research is going on to create this... The way this guy described the energy was that if a 'anti matter' clone of himself was to touch him, both him and the surroundings would be obliterated.. He claimed that...

can matter and anti matter manipulation be used for replication of cells

I found this article on anti matter, (far to complex for me to completely understand). what i would like to know is, does this happen at every bounce, or is this (the) start to the universe. http://arxiv.org/PS_cache/arxiv/pdf/1007/1007.4317v2.pdf.

Sorry I was unsure where to post this so I hope its ok posting it here. I'm an aspiring author and looking to writing a book with a space/sci-fi theme. Now I understand a lot about antimatter but what I don't know is the exact reaction that happens or the conditions. What I would like to...

is it possible to produce anti matter and if yes what could be its benefits, . could it help traveling through space. could it be the fuel that ufos use .or it would just be dangerous and couse the end of the world

Since elementary school they taught us that gravity is about mass and we even use it in the formula to calculate the gravitational force between two masses. As I know anti matter doesn't have a mass and not consisted of the theoretical god particle (Higgs Boson) but still it is said that...

so I am watching this show on discovery and were talking about anti matter vs matter. cool, i understand that they cancel each other out. but if in the beginning energy turn into matter (e=mc2) what creates anti matter? anti energy? secondly, as per the law of conservation of energy, energy...

On the Earth, it is produced in tiny quantities in particle accelerators, but it's also produced say, in outer space as well ? is this true? Are human being made of anti matter, or does it have to be produced purposely, and it exists naturally in outer space ?

I got a thought on this strange hypothetical question. We differentiate between matter and anti matter based on electric charge. if electron has -ve charge,then its anti matter positron has +ve charge. Supposing if there are particles having magnetic charge then 1. Will we have matter and...

Hello, If there is an oposite dimension to ours, does that mean that there would be an oposite me? If it does, does that mean that if I was thinking of the oposite me would the oposite me be thinking about me? Or would he be doing the oposite of thinking about me? Sorry if it sounds like a...

[15] arXiv:0810.3435 [pdf] Title: Dark matter, dark energy and gravitational proprieties of antimatter Authors: Dragan Slavkov Hajdukovic Subjects: General Physics (physics.gen-ph) We suggest that the eventual gravitational repulsion between matter and antimatter may be a key for...

Where did all the anti matter go to?? hi all i have read dozens of articles on anti matter, but my question is.. is it all true? is it true tht antimatter has been found? where was it found?? why didnt tht bit of anti matter destroy the matter?? where did all the anti matter go to??

Why did matter dominate the universe ? if i read the BB corectly matter and anti matter were (produced) in equal amounts.

suppose that antimatter is not real in the real sense nut still is.what if when a nuclear decay or atom smasher happens and a positron is released,since positrons and electrons annihillate each other when they make contact,what if anti matter is actual the absense of energy not real energy in...