The theory behind hydropower is very simple: water obeys gravity and imparts the gained kinetic energy onto a turbine, which subsequently drives a generator.  The devil here is, of course, in all ...
• Performers: Ed Larkin, Jonny Amies, Linzi Hateley, Alasdair Harvey, Fran Fraser and Andrew Fraser, Jordan Benjamin, Rebecca Bowden, Jamie Chatterton, Gracie ...