....The sponsers of the WTN technological breakthrough X-Prize
are seeking your input: They want you to suggest novel technological
challenges worthy of a prize.
Go to their website, I've given the URL on the other post.

If my GALLON-volume worth of ceramic magnetic material does not
qualify as fuel for the 4-seat, 200MPG technological challenge,
I may suggest an alternative transportation challenge, that would
consider solid materials as fuel/energy-source for a vehicle.

BTW, some of you may be snickering about the idea of using ceramic
'permanent' magnets as a vehicular energy-source. Think again!
Because?...
Because so -alled 'permanent' magnets store an enormous amount of potential energy.

But they are not really 'permanant', the Laws of Thermodynamics (entropy)
will ensure that when a 'permanent' magnet's magnetic-energy is gradually/steadily converted into mechanical-energy, the magnetic strength
of that 'permanent' magnet will corespondingly weaken until the magnet is eventually drained of its magnetic-energy and becomes demagnetized.

But, recently developed ceramic magnets are astonishingly powerful.
A 20-oz ceramic-magnet can hold onto a 94 Ib (43 kg) chunk of iron
against the pull of gravity.
So you have potential gravitational-energy by which to measure
the potential magnetic-energy stored in such a small ceramic-magnet.

So what's the potential-energy?

It requires a thought-experiment:
(1) Imagine Earth is the only celestial body.
(2) Imagine Earth has a superstrong tower reaching up a million, or maybe a billion light-years (doesn't really make much difference); beyond lunar distances, potential gravitational-energy values increase only by small increments.
(3) Now imagine that the 'permanent' ceramic-magnet keeps that 94Ib lump of
iron from falling to Earth from a boom attached to the top of that that imaginary tower.
(4) What would the potential gravitational-energy be on that lump of iron
kept from falling by that magnet?....Assume Earth has no atmosphere.

If the potential gravitational-energy of that 94Ib lump of iron (43 kilograms mass) is MGH = 1/2MV^2 = (43kg/2 ) x (11,180m/s)^2 at that enormous height above the Earth,
wouldn't the potential magnetic-energy of that ceramic magnet be the same
value?
So?.,..If you have a calculator function on your PC, or a pocket calculator,
divide that enormous number [energy value] by 365 days...divide again by 86,400 seconds/day to get Joules/second [power value; poroperly measured in Watts].
The value you should get is?.... My crude pencil & paper calculation is about 80 watts for a year's value of theoretical 'potential' power.
That is the 'potential power' value [energy/second] for a 20 ounce piece of 'not-so-permanent' ceramic-magnet.
Fantastic! But it's no proverbial 'magic bullet' solution for our energy needs.

Jacob