Login    Forum    Register    Search    FAQ
  • Board index » HELP AND ADVICE » G33K'S CORNER




    Post new topic Reply to topic  [ 4 posts ] 
    Author Message
     Post subject: Coke bottle plasma "rocket"
     Post Posted: Wed Feb 25, 2009 5:08 pm 
    Offline
    BUMHOLE ENGINEER
    User avatar

    Joined: Wed Oct 26, 2005 10:06 pm
    Posts: 4701
    Location: EvE: 0.0
    Linky!

    MIT boffins fashion working plasma rocket from Coke can - 'Even simpler [yogurt-pot?] ones could be built'

    [youtube]http://www.youtube.com/watch?v=vpEnnUHo9yg&eurl=http://www.theregister.co.uk/2009/02/24/coke_can_plasma_rocket/[/youtube]


    Quote:
    Vid MIT astro brainboxes say they're on the track of tech which could greatly prolong the life of satellites, as well as helping them avoid banging into each other. They have illustrated this by fashioning a crude plasma thruster out of a Coke can and a glass bottle.

    Needless to say, the MIT vid of the Coke bottle-rocket is available on YouTube:

    The recycled-materials space thruster was assembled Dr Oleg Batishchev and his team, of the MIT Department of Aeronautics and Astronautics. Batishchev's mob are working on a heavily simplified version of the Variable Specific Impulse Magnetoplasma Rocket (VASIMR), which might soon be used to adjust the orbit of the International Space Station - or one day carry astronauts beyond Mars.

    Batishchev believes, however, that full-on VASIMR plasma drives are too complex for use on the most common of humanity's spacecraft today - normal Earth-orbiting satellites. But satellites need a propulsion system. They carry small chemical rockets, used for adjusting their orbit - either to keep on track, to change what ground they pass over, or to avoid collision with other objects in space.

    When a satellite runs low on fuel, it must normally use the remainder to re-enter the Earth's atmosphere under control and splash down safely in the ocean - though this doesn't always happen. Either way, manoeuvring fuel is the main limiting factor on a satellite's useful life, so it would be good to have more fuel efficiency.

    That's where Batishchev & Co's cut-down VASIMR plasma drives come in. Like VASIMR, they eject reaction mass using electrical power rather than a chemical reaction in the fuel itself. This permits the exhaust velocity to be much higher, getting a lot more poke out of each gramme of reaction mass.

    "The idea was that a rocket based on the first stage VASIMR could be small and simple, for more economical applications," says Batishchev. Small indeed: the team's prototype "would fit in a large shoe box".

    The machine is known as the "Mini-helicon", and works by ionising nitrogen reaction-mass in a quartz tube using a radio antenna coiled around it. Magnets enclosing both systems control the resulting plasma.

    "The plasma beam exhausted from the tube is what gives us the thrust to propel the rocket," Batishchev says.

    The MIT rocket scientist released the above vid yesterday, of a "fun" prototype fashioned by his crew from a glass bottle (acting as the quartz tube) and a Coke can (replacing the antenna). Apparently it actually worked in the MIT vacuum chamber, producing a (very small) amount of thrust.

    "This shows that this is a robust, simple design," argues Batishchev. "An even simpler design could be developed." (Possibly made out of yogurt pots?)

    Batishchev doesn't see his tech getting into space any time soon, saying that certification issues are a problem. His research is funded by the US Air Force: one might note that famed Pentagon crazytech agency DARPA are also interested in the general idea.

    There's more from the MIT team, including pics, here. ®



    So...when did Mark get a job at MIT then? - Moar Lasers!

    _________________
    Image
    [SNIGG] Sniggerdly | Ask me about how awesome I am at EvE |


    Top 
     Profile  
     
     Post subject: Re: Coke bottle plasma "rocket"
     Post Posted: Wed Feb 25, 2009 5:22 pm 
    Offline
    it is I! Diabetes man!
    User avatar

    Joined: Wed Mar 03, 2004 1:15 pm
    Posts: 14173
    Location: anywhere but nowhere
    you post some shite you do.

    _________________
    Image



    Image
    Went to a zoo, they only had one animal there, a dog............. It was a shitzu....



    I’z leakin… bring amberlamps


    Top 
     Profile  
     
     Post subject: Re: Coke bottle plasma "rocket"
     Post Posted: Thu Feb 26, 2009 11:07 am 
    Offline
    call me J-Lo ;-)
    User avatar

    Joined: Thu Oct 28, 2004 3:54 pm
    Posts: 10761
    Location: Making magic!
    PewPew :thumbl: :thumbl:

    _________________
    Yeah, but a good joke is a good joke - Lemon=GCHQ=
    It is JGC right? Or did i just piss my pants in front the geeks? - Wowyouareacow
    Just loading up now....
    Stay Frosty


    Top 
     Profile  
     
     Post subject: Re: Coke bottle plasma "rocket"
     Post Posted: Thu Feb 26, 2009 2:39 pm 
    Offline
    Ostracised!
    User avatar

    Joined: Wed Jun 01, 2005 3:41 pm
    Posts: 9043
    Location: cooking nades in the backyard
    interesting :D

    _________________
    The banhammer thirsts for tards | There is no 'overkill'. There is only 'open fire' and 'I need to reload'.


    Top 
     Profile  
     
    Display posts from previous:  Sort by  
     
    Post new topic Reply to topic  [ 4 posts ] 

    Board index » HELP AND ADVICE » G33K'S CORNER


    Who is online

    Users browsing this forum: No registered users and 3 guests

     
     

     
    You cannot post new topics in this forum
    You cannot reply to topics in this forum
    You cannot edit your posts in this forum
    You cannot delete your posts in this forum

    Search for:
    Jump to:  
    • Shoutbox
    • Shout Message


    test
    cron