Eric Ash (1928-), electronics engineer, was born in Germany and emigrated to Britain before the Second World War. His research career began with a PhD supervised by Dennis Gabor at Imperial College, followed by research at Stanford University in the United States. In 1955 he became a research engineer at the Standard Telecommunication Laboratories (STL) in Harlow, researching a varietyof electronic devices, including microwave tubes. He returned to academia in 1963, joining University College London, where he continued work on electronics, particularly research on surface acoustic waves. In 1985 Ash became Rector of Imperial College, overseeing the expansion of Imperial into medical research before his retirement in 1993. He was Treasurer of the Royal Society in the late 1990s, and in more recent years has developed a keen interest in climate change.