2/5 Religious and moral education for second level pupils. A look at Guru Nanak.
BBC Radio Nan Gaidheal
James Aldred encounters one of the world's most powerful birds of prey, the harpy eagle.
BBC Radio 4
The surprising and touching story of how Richard Strauss' marriage inspired his music.
Archaeologist Christine Finn taps her foot to ancient sounds not heard for millennia.
3/3 James Naughtie marks the 50th birthday of the Royal Shakespeare Company.
What happens when you switch on a light? Toby Jones discovers it is a question without end
Accountants battle to top green league, plus the chip fat that enjoys a second life
BBC World Service
Robyn Bresnahan revisits the fishing families who were affected by the oil spill
Experts discuss the future of the Russian space programme
Has Poland recovered from the 2010 plane crash that wiped out the nation's ruling class?