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Thoughts On Anti-Matter

Johnny Pneumatic

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J
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I know Anti-Matter has opposit charges to Matter. Here is my question; are there Anti-Matter Chemical Elements?
 
bewareofdogmas said:
I know Anti-Matter has opposit charges to Matter. Here is my question; are there Anti-Matter Chemical Elements?
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Not naturally occuring, but I believe that CERN did once produce an atom of anti-Hydrogen.
 
bewareofdogmas said:
I know Anti-Matter has opposit charges to Matter. Here is my question; are there Anti-Matter Chemical Elements?
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Not naturally occurring around here. However, it is possible to generate a few atoms of anti-Hydrogen.

It's not just charge. Some particles with neutral charges have the same charges as their antiparticles.

The real thing about antiparticles is CPT symmetry, with charge, parity, and time.
 
epepke said:
The annihilation of positronium produces two .511 MEV gamma ray photons. So is this like irradiated water or something?
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Something like that. I think.

If you click on "Introduction" there are more details (blasted frames make the site a pain to link to).
This annihilation results in a 'flash' of electromagnetic radiation. Since positronium is made up of both particle and anti-particle, it assumes a position mid way between matter and anti-matter. When it decays, it is converted into a pulse of pure energy. This threefold state has been picked up by a number of provers for whom the number 3 was prevalent in dreams and waking experiences.
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Rolfe.
 
Rolfe said:
Something like that. I think.

If you click on "Introduction" there are more details (blasted frames make the site a pain to link to).Rolfe.
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Well, it's terribly ironic that homeopathetics should go for irradiated water, don't you think? At the yuppie granola-head store nearby that sells most of the homeopathic remedies around here, people would just go ape over the very idea of irradiation.

Are you sure this isn't a parody?
 
epepke said:
Are you sure this isn't a parody?
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Absolutely 250% sure. This is the work of a very well-known school of homoeopathy in Devon. Badly Shaved Monkey (formerly Lost Boy, blame the forum crash) put me on to it - a bunch of homoeopaths was telling him how scientific and double-blind the modern provings were, so he asked for a reference. This is what he was given. A better example of pure Sympathetic Magic would be hard to find at short notice.

Hey, the positronium is nothing (even during the famous Horizon programme, Lionel Milgrom said radiation was one of the things you could make a remedy of), on the same site they have also proved the blood of an AIDS patient. I don't know whether they just trusted the dilution factors to keep them safe, or if they were working on the common homoeopathic belief that HIV doesn't cause AIDS anyway.

Look at the full list of new remedies.
:dl:

Rolfe.
 
One of the great mysteries is: what happened to all the antimatter at big bang. Supersymetry says that for every particle created, there should be an anti-partcle. So everything should had anihilated imediatly after big bang. So what happened?

Some say there may actaully be galaxies composed of anti-matter.
It would be great to meet someone from an antimatter galaxy and shake his/her/its hand.


Any hoo.. My reason for asking; could there be lifeforms made of it?
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The going theory is that anti-matter should behave exactly as regular matter, so yes there could possible be lifeforms made of antimatter. I wouldn't want to shake its hand though.
 
BoD
Yes. As I understand it, matter plus antimatter equals gamma radiation. The end of a beautiful relationship.
I know of no reason why antimatter people could not exist in a parallel universe, though that begs a lot of questions, but if they existed in this one, it's hard to see how we could get close enough to communicate . (Though since photons are their own anti particle, I assume we could send laser messages.) Most of them would say things like "Stay Away!".
 
If the chemistry is the same does that mean that we all know twice as much chemistry as we thought we did?

Could you make anti nutrons? If not it could solve the hand shakeing problem (or a least give you a different problem ie how to make nutronium gloves)
 
bewareofdogmas said:
Any hoo.. My reason for asking; could there be lifeforms made of it?
Click to expand...

There might be whole galaxies made of it. At these distances, there's no way to tell.
 
Rolfe said:
Absolutely 250% sure. This is the work of a very well-known school of homoeopathy in Devon.
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I ask because it's hard for me to imagine anybody that dumb even having the slightest idea what positronium is.
 
There might be whole galaxies made of it. At these distances, there's no way to tell.-epepke




how would you know before entering the atmosphere of a anti-matter planet?
 
bewareofdogmas said:
how would you know before entering the atmosphere of a anti-matter planet?
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Good question. Before 1956, nobody had an answer of how to tell at all. Then a woman named Wu came up with the idea of putting a really cold isotope of cobalt into a magnetic field and looking a the decay. It turns out that the spins of the decay products have a bias. There have been a couple of other methods devised since then, but they are similarly subtle.

You probably couldn't do that in a spaceship, so rotsa ruck, pal.
 
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