In a solar heating system a ferrofluid could drive its own circulation.

The ferrofluid is suspended in place by use of a permanent magnet.

A ferrofluid, as the combination is known, can be held in place permanently with a magnetic field.

As a sealant a ferrofluid appears to have no competitors.

They are made of a ferrofluid that uses electromagnets to change its shape.

Also see Ferrofluid for how some liquids behave in presence of a magnetic field.

The works consist of ferrofluid displayed in a unique suspension solution.

MR fluid is different from a ferrofluid which has smaller particles.

In this process the drugs would be enclosed by a layer of ferrofluid in some way.

Here, ferrofluid is injected into a target tissue, usually a cancerous tumor.

A ferrofluid is a liquid which becomes strongly magnetized in the presence of a magnetic field.

Using proper magnetic field geometries, any desired shape can be produced at the surface of the ferrofluid.

Refrigeration and printing would require the magnet to be delivered in liquid form (a ferrofluid).

If your son has an interest in magnetism, I would strongly encourage both of you to look at video's of "ferrofluid."

The magnetic particles in an ideal ferrofluid do not settle out, even when exposed to a strong magnetic, or gravitational field.

During in vitro hyperthermia measurements they are generally dispersed in a liquid and form a ferrofluid.

Dr Ziolo and his team have already managed to develop their discovery into a pale orange, water-based ferrofluid.

CZFerro, an American art studio, began using ferrofluid in its productions in 2008.

Interdisciplinary education group: Ferrofluids (contains videos and a lab for synthesis of ferrofluid)

She is best known for her artwork using ferrofluid, a dark colloidal suspension of magnetic nano-particles dispersed in solution.

Research is under way to create an adaptive optics shape-shifting magnetic mirror from ferrofluid for Earth-based astronomical telescopes.

A comparison of ferrofluid and MR fluid (at the bottom of the page)

A ferrofluid carrying a site-specific drug could be guided to its location directly and held there by a magnetic field until its timed dispersal.

The particles in a ferrofluid primarily consist of nanoparticles which are suspended by Brownian motion and generally will not settle under normal conditions.

The post-metal band Isis also uses a ferrofluid in the music-video for 20 Minutes/40 Years.