Plastic magnet field controlled by light

[Honk]

Good luck trying to build a motor if you ever get hold of this stuff. I'll cheer on your....
But I'll bet the flux levels are extremely small (like in a harddrive) and the energy output from
these small light induced magnetic fields is much lesser than the power required by the light source.
It's simply not enough to flip a field, it also have to be strong enough to perform some real work.
I'm talking of an usuable RPM range at some real torque. Just having speed is useless.

[Scorpile]

the power required by the light source.

We can make an enclosure with holes on the right place, put some color filters on holes and set the thing on sun...

[Honk]

OK, go for it.
But try to find the flux level being created before planning a design.....
You can't use microteslas.......

[hansvonlieven]

G'day all,

Has it occurred to any of you guys that this kind of technology can only work on a very thin film. How would you get the light into a block of any thickness beyond a few microns to cause a reaction?

For data storage and so forth, quite feasible. Anything more solid, I don't think so.

Hans von Lieven

[troyd1]

Yes, the thickness issue did occur to me, but I did not think it would need to be that thin. Here is another article that expains it more. The other article is slightly misleading.
http://www.trnmag.com/Stories/2002/050102/Light_boosts_plastic_magnet_050102.html
It appears that the light causes the magnetic material to align differently which increases or decreases the strength.