3D Magnetic Field Viewer
A super-simple device that shows magnetic lines of force
My job takes me to various research labs where I install powerful magnetic systems and train technicians in how to use them. This time, I needed a magnetic field viewer to show lines of force. This Instructable shows how to construct such a device using nothing more than steel wool fibers and mineral oil. I built this one while at my hotel.
1. Get your supplies
I went to Wal-Mart and bought the following items:
Fine steel wool
Bottle of mineral oil in plastic bottle ...