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What will happen if temperature is extremly low or high? Think about the evapour, water and ice, we could see that temperature control the form of existence. Why should we keep body temperature at 37 centidegree which is so important for us to be alive? Form the explaination about change of shape of H2O, we can see that 37 centidegree is perfect for us to keep tissue and organs in a stable shape, and if not we could be fall apart at higher enough temperature or be a chip at lower enough temperature. On the contrary, the water will come into evapour if ambient pressure is lower enough or ice if ambient pressure is higher enough just like the working theory about the airconditioner or refrigerater. Imagine what will happen if some one was put into a space with very low or high temperature? Definitely, we will be gone like air or a chip with higher density. So, 37 centidegree in essence stand for some pressure which keep components balance and stabel. What kind of harm fever do? Every components in our body will become kind of bigger and unstable cause lower pressure around. So we should use antipyretics to keep body temperature back to normal. Sometimes fever is a good thing cause it can kill some pathogens in our body. So what on earth the temperature it is? It's sort of power or strength to form the shape of us body or other organisms. From what we learn about it, we could say that the big bang theory proposed by Hawking about source of cosmos is totally wrong cause the formation of a ball with infinitely high density need infinitely big pressure or cold circumstance around it. How could such a circumstance exist? That's impossible as far as we know at present. But the old saying that the cosmos is endlessly gotta be absolutely right. We don't know where we come from and where we go. Why the sun burns in an extremly high temperature always? Is there an extremly low pressure or cold circumstance around the sun. I am sure it does, cause the sun is the heaviest one in center with planets closely around in solar system. According to the theroy of gravity, the circumstance around the sun is in sort of lower pressue which must be enough for the sun to explosion. The quality of the sun would be smaller and smaller and then stop burning when it is reduced to a little bit equal to planets around it which can form a relatively lower pressure or temperature around the sun. The sun died without burning again. So the present theory that the sun would be bigger and bigger and one day in the future it will swallow earth is impossibe, cause the sun is decreased but not expanded day by day. Any way, the sun is meant to die away with colder and colder temperature and smaller and smaller quality and the earth is warmer and warmer or biger and biger on the contrary. In general, each star go through the same couse of life as the sun. What will happen to the earth if the sun died away? The earth and other plantes maybe burn like sun or fall apart. It seems like some cascade reaction biologically. At last the cosmos die away like the sun. The cosmos will become a chaos world and sparser and sparser if the cosmos is indefinite. In this situation, the cosmos would become warmer and warmer with less and less pressure close to zero and would ever and never gonna regenerate cause makeup of life or a simple combination need a certain pressure. But the cosmos could regenerate if the smallest particles or basic particles have the property to interact with each other and reassembled into stars and planets again even in a extremly low temperature or pressure. Another situation is that any planet would never gonna die but could be used to make up of stars in certain appropriate temperature or pressure. In this case, the cosmos would be alive for ever. In some perfect time and space, the earth could regenerate again from the star. The most possible way of regeneration is in the second situation just like a cell with potential to proliferate and differentiate can grow up in apropriate situation.
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