Деннис Сиама: Космологияның негізін қалаушы ғалым

British physicist (1926–1999)

| known for = Cosmology, black holes, Big Bang theory, darkmatter, gravitational waves, quasars. | prizes =
| footnotes =
| spouse = Lidia Dina on 1959
| children = 2

Dennis William Siahou Sciama, (/ʃ//i/'/æ//m//ə/; 18 November 1926 – 18 December 1999) was an English physicist who, through his own work and that of his students, played a major role in developing British physics after the Second World War. He was the PhD supervisor to many famous physicists and astrophysicists, including John D. Barrow, David Deutsch, George F. R. Ellis, Stephen Hawking, Adrian Melott and Martin Rees, among others; he is considered one of the fathers of modern cosmology.

Short (104 pages) and clearly written non mathematical book on the physical and conceptual foundations of General Relativity. Could be read with profit by physics students before immersing themselves in more technical studies of General Relativity.

Sciama was elected a Fellow of the Royal Society (FRS) in 1983. In 2009, the Institute of Cosmology and Gravitation at the University of Portsmouth elected to name their new building, and their supercomputer in 2011, in his honour. Sciama has been portrayed in a number of biographical projects about his most famous student, Stephen Hawking. In the 2004 BBC TV movie Hawking, Sciama was played by John Sessions. In the 2014 film The Theory of Everything, Sciama was played by David Thewlis; physicist Adrian Melott strongly criticized the portrayal of Sciama in the film.

Sciama was of Jewish Syrian descent and an avowed atheist. In 1959, Sciama married Lidia Dina, a social anthropologist, who survived him, along with their two daughters.