http://hyperphysics.phy-astr.gsu.edu/hbase/electric/indeng.html
That gives the formula for a magnetic field's energy density (energy per volume) as: ½B^2/μ If, as our expert claims, the energy is basically "in the noise", one should be able to come up with a simple calculation of an upper bounds by picking an appropriately large volume and saying the energy density applies throughout that volume. On Mon, Apr 15, 2013 at 4:18 PM, Hoyt A. Stearns Jr. <[email protected]>wrote: > Yes.**** > > ** ** > > *From:* Jed Rothwell [mailto:[email protected]] > *Sent:* Monday, April 15, 2013 2:10 PM > > *To:* [email protected] > *Subject:* Re: [Vo]:Yildiz motor in Geneva -- ran 5.5 hours then broke > down**** > > ** ** > > Hoyt A. Stearns Jr. <[email protected]> wrote:**** > > ** ** > > The magnetization energy of neo magnets is small, hardly worth considering > as a power source.**** > > ** ** > > This means the energy needed to make the domains line up, right?**** > > ** ** > > - Jed**** > > ** ** >
