A Short Explanation of Ferrofluid, A Type of Fluid That Has Properties of Both a Solid and a Liquid

BuzzFeedYellow explains the basics of ferrofluid in their recent “Watch This Liquid Transform Like Magic” video, a kind of fluid containing nanoscale magnetic particles that cause it to transform within magnetic fields. Traditional ferrofluids are known for their spiky appearance within a magnetic field, but this is thanks to a surfactant which prevents the particles from clumping together.