回複：兄弟- 這個是你自己憑空想像的-- Maybe.

If only you can find a perfect round water drop in nature, you will see different type of rainbow.


Sounds like you have googled a lot. Please attach a few links for us to see.

圓形水珠一樣是產生完美彩虹碼, 或是平的 No. please reviwe the principle of refraction.