Hermann bondi biography of albert einstein

Professor Sir Hermann Bondi, the former Master of Churchill College, Cambridge, who died on Saturday aged 85, was a mathematician and cosmologist; in 1948, with Fred Hoyle and Thomas Gold, he developed the steady-state theory of the universe.

The steady-state theory suggests that the universe is always expanding but maintaining a constant average density, matter being continuously created to form new stars and galaxies at the same rate that old ones become unobservable as a consequence of their increasing distance and velocity of recession.

A steady-state universe has no beginning or end in time; and from any point within it, the average density and arrangement of galaxies is the same. Galaxies of all possible ages are intermingled.

Hermann bondi biography of albert einstein

This hypothesis was first put forward in 1920 by the cosmologist Sir James Jeans.

After the war Bondi - then a fellow of Trinity College, Cambridge, working with Hoyle and Gold - developed the theory further. In 1952 he published a seminal book, C