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太阳对地球的重要性是不言而喻的,地球上的万物,有了太阳才得以生存。地球环绕太阳旋转,由于太阳照射的角度不同,地球上各处接收的热量多少不一,地球因而有春夏秋冬之分,两极地区终年白雪皑皑,冰封千里,而赤道一带又截然不同,四季烈日炎炎。太阳究竟有多大能量? 太阳照射在地球上的能量究竟有多大? 据科学家计算,太阳每秒向四面八方辐射出去的热量大约有3800万亿亿千瓦,我们所居住的地球只接收了其中的一小部分,约5×10~(-9)(即二十
The importance of the sun to the earth is self-evident, and everything on the earth has survived with the sun. The Earth rotates around the sun. Due to the different angles of the sun’s illumination, the amount of heat received on the Earth varies from place to place. Earth thus divides the seasons of spring, summer, autumn and winter. The polar regions are snow-capped and frozen all year round, and the equator is very different. The scorching sun. How much energy does the sun have? How much energy does the sun shine on the earth? According to scientists, the amount of heat that the sun radiates in all directions every second is about 380 trillion kilowatts. The earth we live in only receives one of them. In part, about 5×10~(-9) (ie twenty