Edgar Pask and his physiological research--an unsung hero of World War Two.

Edgar Pask died in 1966 at the age of 53. He was the Professor of Anaesthesia in Newcastle upon Tyne, and a quiet and unassuming man. But during the Second World War he had been involved in a number of dangerous and remarkable experiments; these included investigating the effects of acute hypoxia related to high altitude parachute descents, resuscitation techniques and the effectiveness of lifejackets.