Acoustic engineer Trevor Cox demonstrates an exercise to stretch your vocal cords. Read more
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Series 10
How to keep your voice in shape
Acoustic engineer Trevor Cox demonstrates an exercise to stretch your vocal cords.
The Fifth Dimension
Is there a fifth dimension? Hannah and Adam visit CERN to find out.
The Human Instrument
Why do our voices change as we get older?
The D茅j脿 Vu
Why do we get d茅j脿 vu?
The Lucky Number
How do I win the lottery?
The Dawn Chorus
Why do birds sing? And why are some songs so complex?