
The comments are very inquisitive on this particular subject.
One commenter has an interesting question:
Can the patterned magnetizing of elements in these arrays be done by an electromagnet, in real time? That way, a surface would not just have static custom-programmed properties, but will be able to adjust on the fly. That could make for really interesting programmable modular robot type things.
I think using this for automobile ie magnetized engines would be an idea
more detailed mri?
gyroscopic propulision