It is so amazing that I cannot help sharing this. These guys found a way to create what is essentially a unidirectional magnetic field with no return. I am amazed that Maxwell’s equations allow for that:
To me, it is as amazing as a magnetic monopole!
@Michel Well, I guess that renders my 42 year old college education pretty worthless.
Whenever I forget something I always go back to first principles and Maxwell’s equations. 
This Maxwell? Or probably a different Maxwell…
No @Nickyghaleb - that one does not have the right beard…
