Wed, 02/14/2024 - 07:30 Gizmodo Physicists at MIT have spotted the second sound of a superfluid. Besides being pleasantly alliterative, the phenomenon may explain how heat moves through certain rare materials on Earth and deep in space.Read more... Tags second sound, Helium, superconductivity, condensed matter physics, physical phenomena, martin zwierlein, tisza, superfluidity, high temperature superconductivity, matter, laszlo tisza, phases of matter, richard fletcher, technology internet, lev landau, fermion, state of matter Source Physicists Captured Images of Heat's 'Second Sound.' What?