Thorned spikes? This time my 6x2" neodymium magnet meets something unusual, a magnetic fluid. It is called ferrofluid and reacts spectacularly near any magne...
We had someone at work bring in a demo of the Meissner effect that his kid made with a super magnet and a copper plate which I think they found on Youtube.
@jedishrfu
I made the same thing (mini maglev train)+ leidenfrost effect + eddy currents + a non-newtonian fluid for an exhibition in my school. There's tons of things one can do with a dewar of liquid nitrogen