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Cern Mass Produces Anti-Hydrogen

Izeickl writes "The BBC is reporting Here about scientists in the Cern particle accelerator in Geneva, Switzerland have mass produced over 50,000 atoms allowing them to test basic Physics using them, however "Harvard physicist Gerald Gabrielse said: "Our long experience with these very difficult experiments warns that antihydrogen may not have really been produced.""

9 of 256 comments (clear)

  1. some more links by tanveer1979 · · Score: 5, Informative
    This has meen dome before but its the first time 50000 atoms have been produced. A little more tech info.

    From the horses mouth :-) Athena, the guys who did it
    Nature.com article(PDF)
    home page of the experiment

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  2. I was lucky... by Mister+Transistor · · Score: 5, Interesting

    Enough to actually get to see the antimatter production ring at Fermilab. Once or twice a year, they go into a maintenance shutdown and give small informal tours.

    What used to be the main ring years ago is now the antimatter ring. The magnets were all upgraded to superconductors, and they added buncher/debunchers to the ring to squeeze protons together and apart which, every so often produces a stray anti-proton.

    Cern is way ahead of Fermi in that they are producing full anti-atoms, whereas Fermi is only making anti-particles.

    Definitely forget about efficiency in production, the guy giving the tour said their electric bill is about a million dollars a month, and they make very few anti-protons from all that power! I bet they're ComEd's best customer. They can't run during the summer air-conditioning months, as they would suck too much energy from the grid in Illinois.

    The guide also said as long as the magnets stay supercooled, the anti-protons will stay suspended in the ring for up to a month (unless they hit stray matter and blow up sooner).

    After the tour, we got to play stump the genius - one of the research physicists there was nice enough to give a Q & A session. A most informative and cool tour, getting to see something that most "civilians" never get to lay eyes on.

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  3. Um, a handful? by richie2000 · · Score: 5, Funny
    Antihydrogen has been made before, but only a handful of atoms at a time.
    Now, the Cern particle accelerator in Geneva, Switzerland, has produced more than 50,000.

    Sooo, exactly how many hydrogen atoms are in a handful anyway? My first guess would be in the ballpark of "A hell of a lot more than 50k".

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  4. Dimensional Analysis by Wrexen · · Score: 5, Funny

    It's clear at this point that the standard "SI" or metric system is no longer sufficient to describe the events in today's world. As such, the "PS", or "Pop Science" unit system is defined below for those interested by this handy guide

    Information
    Old Unit: bit
    New Unit: Library of Congress

    Time Interval
    Old Unit: second
    New Unit: eye-blink

    Number of Particles
    Old Unit: mole
    New Unit: handful

    Width (small distances)
    Old Unit: millimeter
    New Unit: human hair

    Length (large distances)
    Old Unit: meter, kilometer
    New Unit: football field

    Volume
    Old Unit: cubic centimeter, liter
    New Unit: football stadium

    Energy
    Old Unit: joule
    New Unit: 100-watt-lightbulb-second

    Mass
    Old Unit: gram, kilogram
    New Unit: CowboyNeal

    More units will be assigned as they are needed

  5. George Bush says... by MosesJones · · Score: 5, Funny

    "We must stop these anti-hydrogen terrorists, I am informed that hydrogen is in things we use everyday like coke, and is even vital to Americans' survival. These people who are anti-hydrogen are anti-american and are seeking to destroy the very basis of our society, you can not be a friend of america if you are not a friend of hydrogen"

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  6. Combine with anti-oxygen and... by shoppa · · Score: 5, Funny
    Now all they need to do is
    1. make some anti-oxygen
    2. combine it with anti-hydrogen in a 2:1 ratio
    3. to make anti-water
    4. Drink it and you get thirsty!
    1. Re:Combine with anti-oxygen and... by Hittite+Creosote · · Score: 5, Funny

      As long as 'thirsty' is another word for 'every atom in your oesophagus exploding'...

  7. Description of Antihydrogen... by cyrek · · Score: 5, Informative

    There's a simple and to-the-point description of Antihydrogen at the Wikipedia.

    Bizarrely, the person responsible for the original submission is typing this sentence right now. Thankfully, brighter people have improved upon it somewhat since then... :)

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  8. Here is my lame Star Trek reference by jmcwork · · Score: 5, Funny

    You can tell they are anti-hydrogen because they all have little goatees and a really bad attitude.