Q.E.D. (1982)
The Power of Sound
S12 • E10 Mar 6, 1991
When Dr John Pond's not in his milkshed, he's in the laboratory at the back of his farmhouse. As a child he was fascinated by sound and played music to the cows to see if it would improve the milk yield. Now he studies the amazing power of ultra sound which can mix mayonnaise and weld heels to shoes. Introduced by Anthony Clare.
