this is Ferrofluid. Ferrofluid is a real liquid that exists in real life. It’s one of the very few magnetic liquids that exist on earth. Ferrofluid is attracted to the poles of a magnet. A process of making ferrofluid was invented in 1963 by NASA and the person who made it was Steve papell to make liquid rocket fuel that could be drawn toward a fuel pump in a weightless environment by a magnetic field. ==== Use your cursor to move the magnet. The ferrofluid is being carried by a invisible barrier
