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Biefeld-Brown Effect

  1. Dec 26, 2003 #1
    Hi Guys,

    I'm just currious why Nasa doesn't utilize the Biefeld-Brown effect for space satalite / space probe propulsion systems?

    I had emailed Nasa a while back asking them, and they replied saying that it does not produce the torque needed. Could someone please explain?

  2. jcsd
  3. Dec 26, 2003 #2


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    Welcome to the forums, Speso

    I'm shooting from the hip here:

    The reasons I can think of are
    1) It wouldn't be able to provide enough thrust for use in a lifting vehicle


    2) You still need fuel to operate in space (no surrounding medium to ionize), and there are other forms of electric propulsion which are able to operate with voltages MUCH lower than 20kV

    In my quick google search, I wasn't able to find anything on theoretical specific impulse or thrust/weight ratios for such devices, so I can't be sure.

    Do you know of any sites which go into specific details on the construction of such a device?
  4. Dec 27, 2003 #3


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    Greetings !

    Intresting that I haven't heard of that one before.
    But, if I understood the general explanation
    correctly it's just about ionisation and manipulation
    of an ionised gas - something done today in many
    types of electric space propulsion technologies.
    There are two main types of such thrusters which involve
    ionisation - electrostatic and electromagnetic - depending
    on what they do with the plasma once its ionised.

    Live long and prosper.
  5. Jan 3, 2004 #4
    The basic crux behind the B-B effect is in creating an electrical charge differential between the "top" and "bottom" of the device with one important differance:
    The "top" charge is expelled into the surounding environment while the "bottom" charge is maintained within the device, but the "bottom" charge force-fields extend into the external environment, pulling the device "up"
    Under these conditions the device moves forward, or "up", as leading atmospheric charges are continually supplied.
    There is nothing wrong with this rather novel approach, and can easily be demonstrated.
    However, the lifting capacity is very small and the energy requirements are quite high.
    There are those who suggest that this device, an "asymetric capacitor" will produce the effect in a vacuum. If this is true, than it is worthy of further sutdy. I have heard of no evidence that it works in a vacuum, but look forward to the tests.
  6. Jan 30, 2004 #5
    I've been collecting a lot of information on different theoried "ElectroGravitic" systems and uploaded them onto my site, if you're interested in reading about them...

    Just FYI. :)
  7. Feb 23, 2004 #6
    Reply to Arctic Fox

    It hasn't really got anything to do with gravity. It just produces a thrust in a medium.
  8. Feb 27, 2004 #7
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