Ferrocell
Some of the solutions used in making a Ferrocell can be toxic if mishandled. This page is not intended to instruct or inspire to replicate. If reader choses to do so, reader accepts any/all risks associated.
Ferrocell is a device originally invented by Timm Vanderelli (patent link below), and demonstrated on Ken Wheeler's YouTube channel (https://www.youtube.com/watch?v=Tn4fkkyJIBg) The apparatus is simple in its design, only being composed of two sheets of circular flat glass with a micro thin solution of ferrofluid and carrier fluid in between. LED lights are positioned at the outer peripery of the two glass pieces to allow viewing of magnetic fields.
Timm Vanderelli Ferrocell Patent
TOROIDAL FERRITE MAGNET:
N50 CYLINDER MAGNET 1"x1":
N42 2"X2"X1" SQUARE MAGNET: