人们早已看到,种种气象变化和植物的生长,都是太阳在推动着的。我们已经知道,太阳是供给地球上的能的最主要的源泉。没有太阳光,地球上的生物和人类不仅不能发展,就连生存也是不可能的。可是太阳的巨大能量是那里来的呢?怎样进一步去利用它来为我们服务呢? 太阳能的来源原来太阳是一个巨大的炽热的气体球。它的体积等於地球的130万倍—1.409×10~(18)立方千米,它的直径等於地球的109倍—1,391,000千米。太阳的表面温度是6,000℃,而它的中心温度却高到2,000万度。太阳虽然是由气体组成的,然而这些气体却和地球 People have already seen that all kinds of meteorological changes and plant growth are driven by the sun. We already know that the sun is the most important source of energy on Earth. Without sunlight, the creatures and humans on Earth can not only fail to develop, but even survival is impossible. But where is the sun’s enormous energy coming from? How can we use it further to serve us? The source of solar energy is that the sun is a huge hot gas ball. Its volume is equal to 1.3 million times the Earth - 1.409 x 10 ~ (18) cubic kilometers, and its diameter is equal to 109 times the Earth - 1,391,000 kilometers. The surface temperature of the sun is 6,000°C, while its central temperature is as high as 20 million degrees. Although the sun is made up of gas, these gases and the earth