We're all familiar with MRIs. MRI is magnetic. It's Magnetic Resonance Imaging. It's magnetic fields. And we know they're safe. Now, the same principles that apply to MRI have been actually ...

Take a look at the video below the break for the full story. Surprisingly such projects are few and far between here at Hackaday, however it’s not the first magnetic field measurement we’ve seen.

The average Hackaday reader likely knows, at least in the academic sense, what a magnetic field looks like. But as the gelatinous orbs in our skull can perceive only a tiny fraction of the EM ...