一、制作伽利略望远镜 实验器材：直尺、老花镜、近视镜、硬纸片、小刀、胶水。 实验过程：(1)如图1所示，以近视镜(直径和焦距较小些)作为目镜．老花镜(直径和焦距较大些)作为物镜的顺序放在直尺上。 (2)从目镜向物镜方向观察远处的景物。移动物镜的位置，直到远处的景物好像被拉了过来且成放大清晰的像为止，从直尺上读出 First, the production of Galileo telescope Experimental equipment: ruler, reading glasses, myopia, hard paper, knife, glue. Experimental procedure: (1) As shown in Fig. 1, myopia (smaller in diameter and focal length) is used as the eyepiece. Reading glasses (larger in diameter and focal length) are placed on the ruler as the objective lens. (2) Observe distant scenery from the eyepiece toward the objective lens. Move the objective lens until the distant scene appears to have been pulled up and become a clearly magnified image. Read from the ruler