Top 10 craziest theories 3.Heat Death The argument uses the second law of thermodynamics by stating that if the universe was infinite, it should also be infinitely old. Or to make that sound less daunting, a star one hundred light years away could only be there if the universe was at least one hundred years old (if the speed was constant, more on that later). So if the universe is infinitely old, heat death suggests everywhere should be the same temperature and there should be no stars in the sky because they all would have died out (or they should all be at the same cooled temperature). The explanation: If the universe was infinitely old, then stars should be cool because they warmed their surroundings, making the temperature across the universe uniform. However, there are stars and the universe doesn’t have an equal temperature throughout (as detected by cosmic background radiation). This idea also only works if the speed at which the universe is expanding has remained constant because such ideas as cosmic inflation claim expansion is not always the same. When you have variables such as dark flow and dark energy also pushing and tugging on matter, heat death’s vision of a starless sky appears dim (slight pun intended). Coming next.... THEORY OF EVERYTHING Ravi
Posted on: Wed, 07 Aug 2013 14:38:07 +0000
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