12.15 Instrumentation: Fourier Analysis and Transducer Response
Any complex wave shape may be reproduced artificially by a combination of simple oscillations. Engineers use this property to measure the response of instruments to changes in pressure and acceleration.
12.40 Science: Nuclear Tunnelling
Set against the contemporary thinking of Sir John Cockcroft and E. T. S. Walton, this programme brings into context laboratory methods of working out how the nuclear synthesis of elements takes place in stars.
(to 1.10)