第九册《热辐射》一课是在学习了“热传导”、“热对流”的基础上,又一次让我们认识热现象的重要内容。课本中所演示的热辐射对比实验,采用的是用同样厚的白纸和黑纸各做一个手套,分别戴在左、右手上,站在向阳的地方,让阳光照在手套上,过一会儿进行比较,看两手有什么不同的感觉。这一实验客观地反映了黑色物体吸收的辐射热量 The ninth volume “heat radiation” lesson is based on the study of “heat conduction” and “convection heat”, once again let us recognize the important content of the hot phenomenon. Textbook demonstrated in the heat radiation contrast experiments, using the same thickness of white paper and black paper to do a glove, were worn on the left and right hands, standing in the sunny place, so that the sun shines on the gloves, after a while Compare and see what different feelings your hands have. This experiment objectively reflects the radiant heat absorbed by black objects