Rare Earth Magnets
What would the effect be if one were to use rare earth
magnets either to generate electrical current or to be used in
electrical motors? Would it be an advantage, disadvantage, or would it not work
Higher power densities would be the advantage, since motors could be
made smaller because of the larger magnetic fields in rare earth
If I were to attempt the experiment described (place a mirror parallel to
the floor, place a book on it, then place a small object on top of the book) I
would not expect to be able to see the object in the mirror unless the object
was tall enough to be seen sticking up above the book.
You will see in the mirror those parts of the object that would be visible
if you replaced the mirror with a sheet of glass and then adjusted your
position so your eyes were the same distance below the glass as they were
above the mirror.
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Update: June 2012