On Fri, May 31, 2013 at 8:52 AM, David Roberson <[email protected]> wrote:
> I suggest that you study the magnetic fields associated with solenoids > Josh. Obviously you must not realize that they have an external field much > like a bar magnet. This is simple for you to study and realize your > mistake. > > OK. I studied it. Didn't find a mistake though. The field of a long solenoid is near zero between the poles and outside. Or as wikipedia puts it, "the field outside must go to zero as the solenoid gets longer". Yea, there's some leakage between the turms (although that drops off very fast too), but for 33 cm solenoids with a diameter of probably less than a cm, it'll be orders of magnitude below the field at the poles, which is already pretty weak. And I said "near zero". It's why you can walk around near a 12 Tesla ICR magnet and not get your keys pulled outta your pocket. This is supremely silly though. Does anyone really believe that magnetic fields at this level have something to do with he alleged reaction? Even if you accept it, that configuration would be the last way one would exploit it. Fraud from a guy with a history of fraud is far more plausible.
