The first reaction I had when I read this was "This would be fantastic on a much larger scale to power electric cars".
I believe that this kind of technology would eliminate the range debate between pure electric cars and those that rely on petroleum.
That being said, the only downside I can come up with off the cuff is environmental, as in what impact would a large scale magnetic field network have on migrating birds and the associated environmental consequences that would happen as a result.
Well I have an answer for you but not directly for birds, but indirectly. (please bear with me).
I know that many animals use the earths magnet field to navigate plus they use the other senses they got.
Taking bees for example, current theories about Colony Collapse Disorder (CCD) range from stress to toxins aso. Another factor which has already been discovered is that
bees respond very sensitive to magnetic field fluctuations.
Transportation of bees from northern to southern America caused the bees to be in disorder and ,,panic''. I think a widespread usage of this technology would profundly hurt animals. Though clearly I am not an expert in this topic.
Paper:
Is there any influence of magnetic or astrophysical fields on the circadian rhythm of honeybees?, M. F. Neumann, 1988
So my current understanding of magnetic fields is pretty much limited to high school, but would it be possible to align this magnetic field with the Earth's magnetic field?
I believe that this kind of technology would eliminate the range debate between pure electric cars and those that rely on petroleum.
That being said, the only downside I can come up with off the cuff is environmental, as in what impact would a large scale magnetic field network have on migrating birds and the associated environmental consequences that would happen as a result.
Anyone have any insight?