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太阳离我们很远很远,它是一个巨大的“火球”,表面的温度约为6000℃.它的光和热传播到地球,使我们能看见外界,能感到温暖或炎热.那么太阳这个“火球”到底有多大呢?我们试来测量它的直径D,就可根据V球=4/3πR3=πD3/6计算出太阳的体积.
The sun is far away from us. It is a huge “ball of fire.” The temperature of the surface is about 6000°C. Its light and heat spread to the earth so that we can see the outside world and feel warm or hot. Then the sun How large is the “ball of fire” in the end? We try to measure its diameter D, we can calculate the volume of the sun according to V ball = 4/3πR3 = πD3/6.