ÂÒÂ×Ðã

Dr Helen Czerski (ÂÒÂ×Ðã Mechanical Engineering), Dr Andrew Pontzen (ÂÒÂ×Ðã Physics & Astronomy) and Professor Andrea Sella (ÂÒÂ×Ðã Chemistry) talk about the different energy sources used in everyday life.

(from 1 minute 21 secs)