Neutrino Physics: The Art of Learning a Great Deal By Observing Nothing

A popular science lecture delivered in English and in Hebrew to general audiences of students and to the general public, describing the incredible features and history of the lightest and most elusive known fundamental particle in nature and its role in cosmology, astrophysics and particle physics. The English version here is from a symposium in Tel Aviv University (May 2005) in honor of the 80th birthday of the late Professor Yuval Ne'eman.