A movie in which a magnetic fluid responds to sounds or runs up a spiral

According to Wikipedia, the magnetic fluid is said to be "it is magnetic, has magnetism and has the property of being attracted to a magnet like a sand iron", and when placing the one generating a magnetic field close to it, the magnetic fluid Projections are formed along the flow. What I made art using this beautiful shape is this work group.

The playback of the movie is from the following.
"Protrude, flowing"
YouTube - Protrude, Flow


"Morpho Tower"
YouTube - Morpho Tower


"Breathing Chaos"
YouTube - Breathing Chaos


"Waves and the Bear"
YouTube - Waves and Sea Urchins


"Pulse". In response to the voice the projection waves.
YouTube - Pulsate


"Morpho Tower spiral vortex than Morphotower series". Magnetic fluid runs up the spiral.
YouTube - MorphoTower Spiral Swirl


These seem to have been produced with the following projects.

Magnetic fluid art project "protruding, flowing"

The magnetic fluid is composed of powder with strong magnetism, surfactant, base agent, it seems to be used as a speaker and sealing agent.

Magnetic fluid - Wikipedia

There seems to be a small observation device that can be observed at home.

Magnetic fluid / MR fluid sample

Magnetic fluid observation device FF - 200