Understanding of the universe - the universe finite or infinite universe.

<P> Four, limited or unlimited universe that the universe is infinite if the universe is at least three plausible leads to the contradiction can not be self-consistent, also known as Paradox. .</ P> <P> 1. .Luminosity paradox if the universe is infinite, or less evenly distributed during the star, then the total effect of their luminous brightness of the sky should be made infinite. .Taking into account the interaction between bodies are covered, the sky's luminosity should be a constant for constant, that is, day and night as bright. .German Olbers (1758-1840) were made in the discussion of the system, so future generations, also known as "Olbers paradox." .This question can only be that "infinite universe" argument is problematic, Olbers paradox in the framework of the Big Bang theory have a decent explanation. .</ P> <P> 2. .Sealy gravitational paradox German Eagle (1849-1924) pointed out that if the infinite universe of countless stars, evenly distributed, according to the law of gravity, all objects have this ubiquitous among the gravitational pull, then any object, .in any direction will be subject to infinite gravity, the total effect of everything in the universe will be torn to pieces. .Real objects in the universe is not the case outcome, which confirmed from the negative "infinite universe" fallacy. .</ P> <P> 3. .Paradox of geographical hot dead physicist Clausius (1822-1888) that the conservation of energy to the universe, and the energy of the universe is always moving in the direction of an increasingly chaotic transfer of thermodynamics, this process is irreversible. .Therefore, the more the development of the universe, and its ability to change the smaller of the closer disorder. .Once you reach a certain level, all changes will stop, giving rise to the "eternal silence." .This easily lead to the world of terror, "heat death, said," In the modern theory of the universe to be clarified. .</ P> <P> absurd description of the three Yang, the universe should be limited. .</ P>.