the expanding universe theory
71Georges Lemaître — Infobox Scientist name = Georges Lemaître box width = image width =250px caption = Monsignor Georges Lemaître, priest and scientist birth date = July 17, 1894 birth place = death date = June 20, 1966 death place = residence = citizenship =… …
72physical science — physical scientist. 1. any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy. 2. these sciences collectively. [1835 45] * * * Introduction the systematic study of the inorganic world …
73relativity — /rel euh tiv i tee/, n. 1. the state or fact of being relative. 2. Physics. a theory, formulated essentially by Albert Einstein, that all motion must be defined relative to a frame of reference and that space and time are relative, rather than… …
74Redshift — This article is about the astronomical phenomenon. For other uses, see Redshift (disambiguation). Physical cosmology …
75Arthur Stanley Eddington — Infobox Scientist name = Arthur Eddington image width = 247px caption = Arthur Stanley Eddington birth date = birth date|1882|12|28|df=y death date = death date and age|1944|11|22|1882|12|28|df=y birth place = Kendal, England death place =… …
76Time in physics — In physics, the treatment of time is a central issue. It has been treated as a question of geometry. One can measure time and treat it as a geometrical dimension, such as length, and perform mathematical operations on it. It is a scalar quantity… …
77List of cosmologists — This is a list of people who have made noteworthy contributions to cosmology (the study of the history and large scale structure of the universe) and their cosmological achievements. This list is incomplete; you can help by expanding it. Contents …
78History of science — History of science …
79History of general relativity — Creation of General Relativity Early investigations As Albert Einstein later said, the reason for the development of general relativity was that the preference of inertial motions within special relativity was unsatisfactory, while a theory which …
80Galaxy — This article is about the astronomical structure. For other uses, see Galaxy (disambiguation). NGC 4414, a typical spiral galaxy in the constellation Coma Berenices, is about 55,000 light years in diameter and approximately 60 million light… …
