High-speed video captures the behavior of a ferrofluid trapped between two magnets. Ferrofluids contain tiny ferromagnetic particles suspended in a carrier fluid like oil or water. The distinctive peaks and valleys of a ferrofluid subject to a strong magnetic field is due to the normal-field instability and is a result of the fluid minimizing its magnetic energy.
This is so cool
Ferrofluids are still one of my favorite things.
via fuckyeahfluiddynamics
Ferrofluids are fascinating things. They are one of those things that make me bounce up and down and point at screen,...