When German U-boats threatened to starve Britain into submission by cutting off food supplies in WW2, sonar scientists and engineers worked against the clock to improve anti-submarine detection in order to defeat them, to guide the X-Craft that attacked the German battleship, KMS Tirpitz, and the craft used in the D-Day landings. There has long been - and continues to be - great interest in WW2 submarine warfare which will often focus on the craft, the men who commanded them and the equipment developed for them but the lives and endeavours of those who developed, perfected and adapted the sonar on which they depended has not been widely appreciated. Many of the personal and specific details mentioned within Sound of the Waves have never been divulged until now. Seen through the eyes of Eric, a bright young physical chemist, this memoir describes in intimate detail what life was like for the talented men and women working for the British Admiralty at Her Majesty's Anti-Submarine Experimental Establishment in Scotland and the Top Secret projects they were involved in. The scientific and technical advances achieved at the Establishment during the war years are explained in uncomplicated terms but Sound of the Waves also reveals that these scientists and engineers were not simply part of Churchill's 'army of boffins ' working in a vacuum but were ordinary people with families and interests outside of their fields of study. This very personal account of the life and research of a young scientist and his colleagues is therefore as much a social history of the war years as a history of underwater weapons in WW2. Flashbacks to Eric's childhood give a clue as to how a curious and creative mind can be nurtured and how a dyslexic child can excel in the sciences. Eric Alexander was born in South Africa in 1916. He came to England prior to the start of the Second World War. It was on gaining his doctorate at Oxford University in 1941 that he was invited to join the Admiralty as an Experimental Officer to improve anti-submarine detection devices. After the war he made his career with the Admiralty as a senior sonar scientist in Dorset, England. In 1966 he was seconded to the diplomatic service of the Foreign Office and appointed Scientific Councellor to the British Embassy in Moscow.