Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Alan Walsh FRS (Born Hoddlesden 19 December 1916: Died Melbourne 3 August 1998) was a British and Australian physicist who won the Royal Medal in 1976. He was most notable for his work on Atomic absorption spectroscopy. In 1977, he was created a Knight Bachelor for 'his distinguished service to science'. In 1969, he was elected a Fellow of the Royal Society of London and Foreign Member of the Royal Swedish Academy of Sciences.