László Tisza

László Tisza was a Hungarian physicist born in 1907 who made significant contributions to the field of low-temperature physics. He is best known for his development of the two-fluid model, which explains the behavior of superfluid helium. Despite facing political challenges that hindered his academic career in Hungary, Tisza became a professor at the Massachusetts Institute of Technology, where he conducted groundbreaking research. He discovered the existence of a phenomenon known as the 'second sound' in superfluid helium, which refers to the wave-like propagation of heat in this unique state of matter. Tisza's work has had lasting implications in both material science and astrophysics, particularly in understanding high-temperature superconductors and neutron stars.