---------- Forwarded message --------- Da: Adriano V. Autino, SRI, Founder < adriano.autino@gmail.com > Dear SRI Friends and Supporters, today, 8 of April, 21:00 CEST, Prof. Luigina Feretti, researcher in ExtraGalactic RadioAstronomy at INAF (National Institute of Astrophyisics of Italy), will be with us, holding a lecture that will reply to many of our basic questions, including: Basics concepts on Gravitation, centripetal, and centrifugal forces. History of the Universe, from the Big Bang to the formation of objects and structures. Birth and death of stars. Bodies in the solar system. Earth rotation, escape velocity, motion of objects in orbit, magnetic field. Today a total eclypse will hide the Sun, in Mexico, USA, and Canada. Why don't we have regular eclypses every year? is that question naif enough? I am sure that the answer is not that trivial, of course if astronomy and astrophysics are not our job... Prof. Feretti will be happy to reply to any question from the a...