This is not all about the "measures" of rain. For instance, in the atmospheric layers where it starts to rain, the temperature may fall so low as 400 C degrees. Despite this, rain drops never turn into ice particles*. (This would certainly mean a fatal threat for the living things on the earth). The reason is that the water in the atmosphere is pure water. As known, pure water hardly freezes even in very low temperatures. Yet again, the author attempts to impose his meaning on the text! How can we derive the idea of a super-cooled liquid from this passage? In other words, is the Qur'an telling us: "And He who sends down water from the sky as a super-cooled liquid [due measure],"? Also, if rain were 400 C, it would not be a super-cooled liquid, it would be super-heated steam!