We created an audio visualizer like never before. Ferrofluid is a material that was first developed by NASA in the 1960s. It has been used for fuel transport in zero-gravity space, spacecraft, and sealing connections in space suits. In modern times, it is used as a damper for high-end speakers, as a rotating shaft for motors, and for gas sealing. The composition of the magnetic fluid is made up of very fine iron particles, a surfactant coated on them, and base oil. It is a liquid magnetic substance that does not sink because it is so small that it is invisible to the naked eye and is evenly distributed in the base oil due to the surfactant component.