Acoustic Phenomena and Applications of Acoustics, presentation by Prof. Dr. Christ Glorieux
Acoustic waves are omnipresent in our daily life, but it is only occasionally that we wonder about their how and why. In this presentation, Glorieux will show that even ordinary acoustic events, and our perception of them, are driven by a fascinating combination of physics laws and phenomena. Attention will be given to how acoustic filtering is occurring in most acoustical scenarios, and how it can lead to exotic sound phenomena. Some light will be shed on the energy carried by acoustic waves, and on the question whether that energy could be exploited. Mechanisms to control sound propagation and reflection will be discussed, and the physics behind a series of particular acoustic phenomena (quetzal bird sound at Chichen Itza pyramid, photo acoustic effect, magneto acoustic effect, acoustic black hole) - and applications of acoustics (acoustic levitation, acoustic motors, acoustic refrigeration, sound source localisation, self localisation) will be addressed.