Sound Science

Using high-speed camera technology, Trevor Cox professor of acoustics at the University of Salford, conducts experiments in sound. He firstly shows what happens when rubbing the rim of a glass of water is slowed down to 80 times less than normal speed.
Trevor then demonstrates the sound effects of a tuning fork, a triangle, a cymbal and a guitar, as well as the impact of sound on a soap bubble, burning candles and a wine glass.
Using an oscilloscope Trevor then shows the difference in frequencies produced by different octaves played on a saxophone.
The ‘confusaphone’ shows what happens when one’s left and right hearing is mixed up, and Trevor examines the effect of a sonic boom, created by a cracking whip.

He finally assesses the effect of echo and the varying sounds we can create with our own bodies.

All credits to faculty at University Of Salford : Manchester.

video download and other great resources at : http://www.acoustics.salford.ac.uk/schools/lesson_starters/