I didn't realise, until I received its invitation, that there was a group called Friends On Similar Wave Length (FOSWL), comprising reputed experts and professionals in various fields of activity, with special focus on the ever expanding frontiers of science and technology. The talk it recently organised in Chennai on Emerging Clean Energy Sources of the 21st Century by the former Associate Director of the Bhabha Atomic Research Centre (BARC), Dr M.Srinivasan, was an eye opener.