John Emsley, a science writer at Imperial College, in London, England, said that it is “one of the most investigated of all chemicals, but it is still the least understood. ”
John Emsley, seorang penulis sains di Imperial College, London, Inggris, mengatakan bahwa air adalah ” salah satu zat kimia yang paling sering diselidiki, tetapi masih yang paling sulit dipahami ”.