Title Text:If you ask “why are leaves green?” the usual answer is “because they’re full of chlorophyll, and chlorophyll is green,” even though “why does chlorophyll scatter green light?” is a great question too.< Origin:https://xkcd.com/1818/ https://www.explainxkcd.com/wiki/index.php/1818:_Rayleigh_Scattering 雷利散射 如果你問「為什麼葉子是綠色的」，通常答案會是「因為… Read more