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Old 03-15-2005   #5 (permalink)
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Re: antimatter

Quote:
Originally Posted by jizum3434
hey does anybody know any thing about antimatter, or a good site where i can learn more about it, or just some quick comments about it would be cool thanks guys!
http://livefromcern.web.cern.ch/live...history01.html

Start with vacuum. Pump in energy big time. Conservation laws must be met! The vacuum will spark into matter and antimatter to balance the books. Matter and antimatter are utterly indistinguishable, with two exceptions:

1) The Weak Interaction is strictly left-handed. Beta-decay is not symmetric, antimatter vs. matter. You can do an experiment in a hermetically sealed containment and still tell one from the other.

http://physics.nist.gov/GenInt/Parity/parity.html
http://physicsweb.org/articles/world/16/7/8

2) If matter and antimatter touch you get 100% conversion to energy, E=mc^2. 0.0465 gram overall is a kilotonne nuclear equivalent.

Would you like to own some antimatter? Potassium-40 in potassium chloride salt substitute has a positron decay channel. It emits an anti-electron that annihalates with an electron to give two 511 KeV photons. A bottle of that salt substitute will make a Geiger counter click.


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