The third installment of the ÃÛÌÇÖ±²¥ Wizards series at the University of ÃÛÌÇÖ±²¥ at Boulder, "Boom! The Physics of Air Pressure and Sound," will be held on Saturday, Nov. 28 at 9:30 a.m. in Duane Physics room G-030. ÃÛÌÇÖ±²¥-Boulder physics instructor Michael Dubson will use exciting visual displays to explain several scientific phenomena including sonic booms, sound and the Bernoulli Principle.