How do you know how old a rock is?
Researchers at Glasgow University have found a startling range of caffeine levels in high street coffees.
R.E.M. had a hit single in 1993, in which they asked ‘What’s the Frequency Kenneth?’ Now in 2011 Adam Stock finds engineers designing wind turbines are asking a similar question.
Adam Stock assesses whether cycling to work is as healthy as it seems.
Energy supply is a complex business. Fluctuating supply and demand mean it can be difficult for energy companies to produce enough energy during high demand periods without producing wasted energy in low demand periods.