Making Sound
- Episode aired Mar 2, 2017
- 59m
Helen investigates how Big Ben creates pressure waves at particular frequencies, how soprano Lesley Garrett's singing voice works, the deep tones of a volcanic eruption and the sounds made b... Read allHelen investigates how Big Ben creates pressure waves at particular frequencies, how soprano Lesley Garrett's singing voice works, the deep tones of a volcanic eruption and the sounds made by a black hole in space.Helen investigates how Big Ben creates pressure waves at particular frequencies, how soprano Lesley Garrett's singing voice works, the deep tones of a volcanic eruption and the sounds made by a black hole in space.