Here is more information on ferrofluid. It was originally invented by a NASA engineer as a way to settle liquid rocket fuel in a weightless environment by means of a magnetic field. To my knowledge, it has never been used for that purpose.
Here is more information on ferrofluid. It was originally invented by a NASA engineer as a way to settle liquid rocket fuel in a weightless environment by means of a magnetic field. To my knowledge, it has never been used for that purpose.