  Giulio Racah's name is known world wide in physics due to the mathematical
methods he developed that are based on tensor operators and continuous groups.
These methods revolutionized spectroscopy, and they are currently essential
research tools in atomic, nuclear and elementary particle physics. He himself
applied them to modernizing theoretical atomic spectroscopy. Racah laid the
foundations of theoretical physics in Israel. He educated several generations
of Israeli physicists, and put Israel on the world map of physics.
