Episode 8 of The Art and Science of Sound Healing with Thomas Orr Anderson. This episode features special guest, Dr. Dan Russell. Dr. Russell is an acoustical physicist and professor of acoustics at Penn State University. His specialties include the vibrational physics of musical instruments, quite relevant to this podcast series. On this episode, he shares with us some very interesting points about vibrational physics and its relationship to the common theories proposed for sound healing. This episode is likely to open your mind, to see a bit more through the eyes of an acoustical physicist. It seems clear that we have a great deal of work to do in order to match the positive experiences of sound healing with the actual physics of sound and vibration. Dr. Russell makes extraordinary animations for helping us to gain a visual understanding of the physics of sound. Check out his animations at: http://www.acs.psu.edu/drussell/demos.html This podcast series brought to you by PhiSonics Sound Immersion Technologies (https://www.phisonics.com/ ).