[thedoc (OP)]

One technique which will probably be familiar with from medicine is sonography or imaging with sound.  To find out how ultrasonic waves can help us see inside metal components, I met Bristol University’s Professor Bruce Drinkwater...
Read a transcript of the interview by clicking here

or [chapter podcast=3747 track=11.11.27/Naked_Scientists_Show_11.11.27_9386.mp3] Listen to it now[/chapter] or [download as MP3]