Mirage, referred to as mirage, is an atmospheric optical phenomenon. When light passes through air layers with different densities and undergoes significant refraction or total reflection, distant scenery will be reflected to the air, sea surface or ground, thus forming various strange scenes. Modern science has fully explained the cause of mirage, but how much did people know about it in ancient times?
Mirage has attracted people's attention because of its peculiar landscape, so it was discovered and recorded long ago. "Historical Records Tianguanshu" records: "The seaside meteorological tower is full of wildness." There is a similar statement in Hanshu Tianwen Zhi. There are more people who observe and record mirage in later generations, and relevant ancient books abound. Therefore, we can get a glimpse of nature in the past and leave a credible record.
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