物理学是一门与生活、生产实际密切联系的学科,以观察和实验为基础。只要留心生活,我们能够发现很多和物理有关的有趣现象。下面这个现象是近视眼们可能遇见过的现象。看书累了,取下眼镜用手揉一下眼睛,无意中发现通过拳头中间的一个小孔看远处的物体,比裸眼看得清楚一些。如图片(手握成拳头,中间一个小孔) Physics is a subject closely related to life and production. It is based on observation and experiment. Just pay attention to life, we can find a lot of interesting and physical phenomena. The following phenomenon is myopia may have seen the phenomenon. Reading tired, remove the glasses rubbed his eyes, accidentally found through the fist in the middle of a small hole to see objects in the distance than the naked eye can see clearly. Such as pictures (hand into a fist in the middle of a hole)