...Physics. 1/2. Dr Helen Czerski investigates the science behind the sounds we're familiar with and the sounds that we normally can't hear, from Big Ben to the Stromboli volcano. Also in HD. [S,AD]
...Physics. 1/2. Dr Helen Czerski investigates the science behind the sounds we're familiar with and the sounds that we normally can't hear, from Big Ben to the Stromboli volcano. Also in HD. [S,AD]