Aside from their physical properties of high conductance and extremely low friction, assisted by their nanometer scale particles of an ore of its namesake or a similar paramagnetic compound coated in a surfactant and suspended in water or oil, these substances may be better known for their aesthetic appearance.
One use of these compounds takes advantage of its obeying of Curie's Law, using a magnet to attract colder substance towards a voice coil and forcing away the warmer substance. Aside from their physical properties of high conductance and extremely low friction, assisted by their nanometer scale particles of an ore of its namesake or a similar paramagnetic compound coated in a surfactant and suspended in water or oil, these substances may be better known for their aesthetic appearance. Numerous "moving sculptures" have been created by exploiting this liquid's tendency to form solid spikes in the presence of a magnetic field. For 10 points, identify this type of revolutionary colloid, named for its most abundant ingredient, iron.
One use of these compounds takes advantage of its obeying of Curie's Law, using a magnet to attract colder substance towards a voice coil and forcing away the warmer substance.
{ferrofluid}