Ferrofluid - How Does it Works
Ferrofluid is an assemblage of magnetic particles engineered at the nanoscale,
100 times smaller than the wavelength visible light. Although too small to be
imaged with microscopes, nano-products harness surprising properties from nanoscale
physics for use in the macroscale world.
Ferrofluid: How it works (by Michael Flynn)
Run time 2.09