【摘要】 由于地球上任一地区接收到太阳辐射能量的周期变化 ,导致地球表面温度的周期性变化 .由此及地球系统的能量收支状况推导出地球系统在一个周期中的熵变公式 ,得出地球系统平均负熵流功率 .由于地球系统温度的日周期变化源于地球自转 ,因而地球自转是地球系统熵变功率为负的根源 .又由于生命生存、生物进化依赖于负熵流 ,得出重要结论 :地球自转是地球系统生物进化和生命生存的必要条件 .并且还对人体热熵流进行了估算 .更多还原

【Abstract】 As a result of the earth’s rotation on its axis, the radiant energy received by any area of the earth surface from the sun varies periodically. There arise a negative entropy flow in the terrestrial system because the earth’s revenue of energy in daytime and expenditure at night is the same and because the earth’s temperature in daytime is higher than at night. The negative entropy flow is vital to the origin and evolution of living things. Accordingly, it follows that the rotation of the earth on its axis is the necessary condition for life to origin on the earth, which provides a basis to search for life on other celestial bodies, that is, there are likely to be evolution processes of life merely on such celestial bodies as rotate on their own axes, their self_rotating periods possibly approaching to the period of the earth.更多还原