在我们这颗小小的星球上,来自太阳的原始能量是令人目眩的光和热。科学家把产生于热能的做功的力称为热力。我们的热力之旅就从太阳光最为强烈的赤道开始,具体地说,是从位于赤道的闷热潮湿的森林开始。连出汗都难的地方在这里,一年中的大部分时间,灼热的太阳都直射头顶;大量的? On our little planet, the original energy from the sun is dazzling light and heat. Scientists call the power generated by heat energy as heat. Our journey of heat began with the equator where the sun was most intense, specifically from the hot, humid forests on the equator. Even where sweating is difficult, here, for most of the year, the hot sun shines directly overhead;