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. ”
एम्सली यांनी स्पष्टीकरण दिल्याप्रमाणे, पाण्याची रचना साधीसोपी असली तरीसुद्धा “त्याचे गुणधर्म अतिशय विलक्षण आहेत. ”