jcheak

Ok, so good idea on the array of electromagnets. This brings up yet another question. I take it with an electromagnet you can change the shape of the magnetic field by changing the current that you push through the magnet correct? If this is true then nothing should be able to stop me from creating an shape I like right? (ie. a cube and then turn the cube into a sphere)

Well, yes, I want to control the shape of a magnetic field to see ferrofluid move on top.

Does anyone have any resource links on the internet that I can read about about how to control a magnetic field, perhaps even do an amateur experiment... It is a topic I am interested in but have not had much luck on the standard google search for "control magnetic field." Thanks, Jeff in Connecticut