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No. Georges LeMaitre was one of the first people to come up with the notion of a Big Bang. Charles Darwin was a biologist, not a physicist or astronomer.
Georges lemaitre
Jesuit priest Georges LeMaitre was the first person to note that Special Relativity did not permit a Universe of infinite age; space was either expanding or contracting. LeMaitre also suggested that the red shift of distant nebula (they were not known to be galaxies in 1929) could be explained by this expansion. Albert Einstein initially told LeMaitre, "Your math is correct, but your physics is abominable." Einstein later admitted that his failure to see what LeMaitre saw was his "greatest blunder." ------------------------------------- Lemaitre came up with the idea of an expanding universe, but Fred Hoyle actually came up with the phrase "Big Bang" to describe the beginning of our universe from what Lemaitre called a "Primeval Atom".
Yes, but not initially as Einstein was a major proponent of the Steady State theory. Einstein is puported to have spent the latter years of his life trying to justify his Steady State Theory with the concepts and supportive evidence for an evolving inflationary universe theory.
Jesuit priest George LeMaitre developed the math for the Big Bang (although the name came later) in 1927, long before Stephen Hawking was born.
Jesuit priest Georges LeMaitre did pretty much all the work that resulted in Big Bang Cosmology. His description was "primordial atom;" "the Big Bang" was the description of Fred Hoyle, a vocal opponent of LeMaitre.
what theory did fleming come upwith
The Theory of Heredity
he thought that it was an interesting topic at the time.
Newton
Because the old theory demonstrably did not explain the observations.
The dynamic encounter theory is the theory for the historical origin of the planets as a result of a near collision of the sun and a comet. This theory was first proposed by Georges Leclerc, Comte de Buffon (1707-1788), director of the royal botanical collection in Paris. Later Buffon disassociated himself from his own views, giving up his theory of the formation of the planets.