Physicists Create and Destroy Magnetic Fields From Afar
Stephanie Pappas, Li Sci
Scientists have figured out a way to create and cancel magnetic fields from afar.
The method involves running electric current through a special arrangement of wires to create a magnetic field that looks as if it came from another source. This illusion has real applications: Imagine a cancer drug that could be delivered directly to a tumor deep in the body by capsules made of magnetic nanoparticles.