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So far, we know well of Zamzam from religious books. But there are actually scientific side as well saintifiknya looh. Branch of geology that studies about water is hydrogeologi.
Usefulness of Zam-zam water is certainly not here that should be explained, but if mythical geological Zam-zam well could probably be explained here. A little story of Pre-Islamic, or before the birth of Prophet Muhammad, beginning with the story of Prophet Ibrahim's wife, Siti Hajar, who are looking for water for her story. The well is then not much or no story, so well is reportedly missing.
Well of Zam-zam we currently see is the wells dug by his grandfather Abdul Muttalib, the Prophet Muhammad. So today, the "science persumuran" then the well of Zam-zam, including categories of dug wells (Dug Well Water).