没有什么令人费解的照片。它有一些不常见的特性,但没有什么未知的。在下图中,我彻底扭曲了亮度曲线使事情更加明显:[!(在这里输入图像描述][1]]1 [1]。(主弧)[2]。这是典型的“内部反射”彩虹,你在学校学习。2。(二次电弧)[3]。当光这一形式反映两次在一个雨滴,扩大弓和扭转颜色的顺序。3所示。(额外弧)[4]。 These are formed by the wave nature of light: light, even of a single color, spreads out as it passes through a raindrop. The arcs are interference patterns formed by the spread-out light from many small raindrops. The less variation there is in raindrop size, the sharper the arcs are; these are especially sharp. 4. Supernumerary arcs on the secondary bow. These are rarely seen, because they're even more sensitive to variations in raindrop size than the primary arc's supernumeraries. 5. [Possible fifth-order bow][5]. This faint green patch is in the right place to be the green stripe from light reflecting five times as it passes through a raindrop. Fifth-order bows are almost never seen because of how faint they are, and are photographed even less often, so this may just be an image artifact. 6. [Primary glow][6]. Only the light passing through the edges of a raindrop forms the rainbow. Most of the light passing through the middle just goes straight through to form the [zero-order glow][7] (not pictured), but some reflects back to form a glow in the middle of the rainbow. 6. [Alexander's dark band][8]. The light making up the rainbows has to come from somewhere, and this band is where it comes from. All of these have been known to science for quite some time. The primary arc was the first one to be explained, [by Persian astronomers in the 1200s][10]. Supernumerary arcs were the last one to be explained, [by Thomas Young in 1803][9]. [1]: https://i.stack.imgur.com/FykZa.jpg [2]: https://www.atoptics.co.uk/rainbows/primary.htm [3]: https://www.atoptics.co.uk/rainbows/sec.htm [4]: https://www.atoptics.co.uk/rainbows/supform.htm [5]: https://www.atoptics.co.uk/rainbows/ord56.htm [6]: https://www.atoptics.co.uk/rainbows/primrays.htm [7]: https://www.atoptics.co.uk/rainbows/ord0.htm [8]: https://www.atoptics.co.uk/rainbows/adband.htm [9]: https://books.google.com/books?id=7AZGAAAAMAAJ&pg=PA1#v=onepage&q&f=false [10]: https://en.wikipedia.org/wiki/Rainbow#Scientific_history