The initial time point -- the big bang singularity
People have always believed in static state universe of infinite length of time, and in this state exist indefinitely. But in 1929 Edwin Haber has observed the idea that milepost type die in one's bed, and will explore the beginning of the universe into the realm of science. Harbert found in either direction, distant galaxies are moving away from us to rapidly. That is to say, the universe is expanding, it is at the beginning should be shrunk to a point, this time known as the big bang moment. The universe at that point of infinite density, it is called the singularity of mathematics. Science in the singularity theorem all shall be void. This means that, before the occurrence of any influence after all at this moment events are not this time event, after the event can not be determined by scientific reason and before the event derivation. In other words, there is no causal relationship between any sense after before the big bang moment and events. In this way, the physical meanings of the time, time, beginning in the big bang singularity