Cecil Reginald Burch, FRS (12 May 1901 – 19 July 1983) was a British physicist and engineer. He was born in

Leeds Leeds () is a city and the administrative centre of the City of Leeds district in West Yorkshire, England. It is built around the River Aire and is in the eastern foothills of the Pennines. It is also the third-largest settlement (by populati ...

. He graduated from

Gonville and Caius College, Cambridge Gonville and Caius College, often referred to simply as Caius ( ), is a constituent college of the University of Cambridge in Cambridge, England. Founded in 1348, it is the fourth-oldest of the University of Cambridge's 31 colleges and one of th ...

in 1923 and began research at the

Metropolitan-Vickers Metropolitan-Vickers, Metrovick, or Metrovicks, was a British heavy electrical engineering company of the early-to-mid 20th century formerly known as British Westinghouse. Highly diversified, it was particularly well known for its industrial el ...

company in

Trafford Park Trafford Park is an area of the Metropolitan Borough of Trafford, Greater Manchester, England, opposite Salford Quays on the southern side of the Manchester Ship Canal, southwest of Manchester city centre and north of Stretford. Until the la ...

Manchester Manchester () is a city in Greater Manchester, England. It had a population of 552,000 in 2021. It is bordered by the Cheshire Plain to the south, the Pennines to the north and east, and the neighbouring city of Salford to the west. The t ...

. There he developed 'apiezon' oils which enabled high vacua to be achieved, making possible the coating of astronomical mirrors. In 1933 he was made Fellow of Optics at

Imperial College London Imperial College London (legally Imperial College of Science, Technology and Medicine) is a public research university in London, United Kingdom. Its history began with Prince Albert, consort of Queen Victoria, who developed his vision for a cu ...

and in 1935 moved to

University of Bristol , mottoeng = earningpromotes one's innate power (from Horace, ''Ode 4.4'') , established = 1595 – Merchant Venturers School1876 – University College, Bristol1909 – received royal charter , type ...

as a research Fellow in the Department of Physics. There he concentrated on the development of microscopy and telescopy. He won the 1942

Duddell Medal and Prize The Dennis Gabor Medal and Prize (previously the Duddell Medal and Prize until 2008) is a prize awarded biannually by the Institute of Physics for distinguished contributions to the application of physics in an industrial, commercial or business ...

and the 1954

Rumford Medal The Rumford Medal is an award bestowed by Britain's Royal Society every alternating year for "an outstandingly important recent discovery in the field of thermal or optical properties of matter made by a scientist working in Europe". First awar ...

, the latter 'For his distinguished contributions to the technique for the production of high vacua and to the development of the reflecting microscope'. He was elected a

Fellow of the Royal Society Fellowship of the Royal Society (FRS, ForMemRS and HonFRS) is an award granted by the judges of the Royal Society of London to individuals who have made a "substantial contribution to the improvement of natural science, natural knowledge, incl ...

in 1944. He married Enid G Morice in 1937.

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