"Geneva, 17 November 2011" A message from the future...
In accordance with Feynman's idea that the positron is an electron moving backwards in time... ( http://en.wikipedia.org/wiki/Retrocausality#Antimatter )
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Antimatter atoms produced and trapped at CERN
11–20 of 95 posts
Re: Antimatter atoms produced and trapped at CERN
#12Earlier quoted context omitted.
Actually, I think they have had 38 atoms, since it is possible to hold on to atoms of antihydrogen in this way for about a tenth of a second.
Let the bidding war... begin! Bidding is over! The ex-antimatter goes to...
I won the auction, and all I got was this stupid matter!
(ex-antimatter == !(!matter) == matter)
Re: Antimatter atoms produced and trapped at CERN
#13Earlier quoted context omitted.
Let the bidding war... begin! Bidding is over! The ex-antimatter goes to...
I won the auction, and all I got was this stupid matter! (ex-antimatter == !(!matter) == matter)
Antimatter and matter annihilate each other upon contact, releasing the energy from both atoms. So the ex-antimatter would be half the released energy from the collision. I think?
Re: Antimatter atoms produced and trapped at CERN
#14I hope they will finally definitely answer if anti-matter also has anti-gravity.
Not a single scientist thinks it does, but it's one of those things you just want confirmed.
Re: Antimatter atoms produced and trapped at CERN
#15"Geneva, 17 November 2011" A message from the future...
Something went wrong when they built the earth. It shouldn't be spinning.
Re: Antimatter atoms produced and trapped at CERN
#16I, for one, am just glad that CERN didn't create a black hole or otherwise destroy spacetime before they managed to do the kind of thing we normally have to turn to science fiction to read about.
Re: Antimatter atoms produced and trapped at CERN
#17So far they have 38 atoms. I wonder what the price per kilo or pound of antimatter is... :)
Yet another substance cheaper than printer ink, whatever its price.
Re: Antimatter atoms produced and trapped at CERN
#18So far they have 38 atoms. I wonder what the price per kilo or pound of antimatter is... :)
That depends on how much it cost per atom. I am going to say somewhere between 1 cent and 1 million dollors so:
1 KG of Hydrogen has ~1000 * 6.02 * 10 ^ 23 atoms.
@ 1 cent per atom that's 6.022 * 10 ^ 12 trillion dollors.
@ 1 million $ per atom that's 6.022 * 10 ^ 20 trillion dollors.Re: Antimatter atoms produced and trapped at CERN
#19I hope they will finally definitely answer if anti-matter also has anti-gravity. Not a single scientist thinks it does, but it's one of those things you just want confirmed.
I would have thought this had already been tested on antiprotons, but I'm not seeing any references for it. Just a note that results from testing anti-hydrogen for gravity should be had in the next few years. Maybe containing something so charged overwhelms gravity?
Re: Antimatter atoms produced and trapped at CERN
#20I hope they will finally definitely answer if anti-matter also has anti-gravity. Not a single scientist thinks it does, but it's one of those things you just want confirmed.
I would have thought this had already been tested on antiprotons, but I'm not seeing any references for it. Just a note that results from testing anti-hydrogen for gravity should be had in the next few years. Maybe containing something so charged overwhelms gravity?
Most antiprotons move too fast to test. Plus the charge is strong enough to overwhelm any signal from gravity.