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来源：百度知道 编辑：UC知道 时间：2024/06/24 07:41:32
The Big Bang is the cosmological model of the initial conditions and subsequent development of the universe supported by the most comprehensive and accurate explanations from current scientific evidence and observation.[1][2] As used by cosmologists, the term Big Bang generally refers to the idea that the universe has expanded from a primordial hot and dense initial condition at some finite time in the past, and continues to expand to this day.

The scientist and Roman Catholic priest Georges Lemaître proposed what became known as the Big Bang theory of the origin of the Universe, although he called it his "hypothesis of the primeval atom". The framework for the model relies on Albert Einstein's general relativity and on simplifying assumptions (such as homogeneity and isotropy of space). The governing equations had been formulated by Alexander Friedmann. After Edwin Hubble discovered in 1929 that the distances to far away galaxies were generally proportion

1. What does the term Big Bang generally refer to?
A.It generally refers to the idea that the universe has expanded from a primordial hot and dense initial condition at some finite time in the past, and continues to expand to this day.
B.It is the cosmological model of the initial conditions and subsequent development of the universe.
C.It is a term used by cosmologists.
D.None of the above.

2. Who proposed the Big Bang theory of the origin of the universe?
A.Albert Einstein
B.Edwin Hubble
C.Georges Lemaître
D.Alexander Friedmann

3. When were most scientists fairly convinced that some Big Bang scenario must have occurred?
A.in 1949
B.when Hoyle later helped considerably in the effort to figure out the nuclear pathway.
C.when the amount of radiation measured at each wavelength sketched out a blackbody curve.
D.none of the above