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Fusion Vibration

  1. Sep 27, 2005 #1
    If we made a custom levitating coil like this:
    so that we could suspend a small Iron ball in the levitation coil.

    If we added two small but powerful electromagnets to each opposite equatorial side of the Iron ball so we could play tug of war with the Iron ball with the Electromagnets while in suspension, the two added electromagnets called Y and Z take turns, Y turns on while Z is off, Then Y shuts off and Z turns on, the process alternates between the two electromagnets.

    The question is, How many times a second would the two electromagnets have to turn off and on so that a vibration in the Iron Ball begins to resinate
    the Iron ball so that it begins to react with the surrounding air and what would the Iron balls vibrational velocity have to be to create a surface fusion reaction on the Balls surface from slamming into air molecules?

    assume that the air is Deuterium.

    Also, What would be the vibrational distance of the Iron Ball moving side to side be?
    Last edited: Sep 27, 2005
  2. jcsd
  3. Sep 27, 2005 #2


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    First of all, the mass of the iron balls, depending on the diameter, would be considerable. It would be impractical to vibrate iron balls to cause fusion in deuterium.

    On a first principle level, the coupling between atoms of Fe and D is just impractical.

    Now, consider that a 10 keV D has a speed of about 978 km/s, it does not seem practical to move a massive steel ball with a velocity of this magnitude.

    Now consider that the velocity of sound in steel is on the order of 5 km/s, so the velocity of the deuteron at 10 keV is 2 orders of magnitude greater than the acoustic velocity in steel.

    Now consider that 1 eV is equivalent to 11605 K, then a 10 keV deuteron has an equivalent temperature of 116 million K, and for fusion of a pure D plamsa, one would probably want a temperature of 50-100 keV. The melting point of steel is about 1700 K.
  4. Sep 27, 2005 #3
    Thanks Astronuc.

    Would you have an approximation, in hertz what the Iron core of our Sun maybe be vibrating at? This was actually the reason why I had asked the before questions, The experiment I mentioned was just a curiosity of the numbers involved and if an Iron core actually helped resinate D plasma as
    part of a chain of events within the Fusion reaction itself.

    Greatly appreciate the help you've given so far. :smile:
    Last edited: Sep 28, 2005
  5. Sep 28, 2005 #4


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    The core of the sun is not Fe. The sun is primarily H and He.

    Core of Sun - http://en.wikipedia.org/wiki/Sun
    The core is a plasma, a highly ionized gas, so it does not vibrate in the way to which was alluded in the first post.

    Also, I should point out that the sun is fusing H rather than D or T, although D and T are likely present in small quantities. The temperature in the core is believed to be about 13.6 million K, 1170 ev (1.17 keV) which is relatively cool. However the particles (nuclear) density in the suns core is about a trillion times denser than the hottest magnetically confined plasmas we can produce on earth.
  6. Sep 28, 2005 #5
    Thanks for the clear and precise answers, I appreciate it, Thanks again Astronuc. :smile:

    Step 3, Would you scientifically assume that Fusion Cavitation effects as an additional process within the Suns reactions could be taking place though sonic cavitation methods as well as traditional known Fusion reactions you posted?

    Thanks buddy :smile:
    Last edited: Sep 28, 2005
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