Human life depends on rain. Rain is the source of freshwater for many cultures where rivers, lakes, or aquifers are not easily accessible. Rain makes modern life possible by providing water for agriculture, industry, hygiene, and electrical energy. Governments, groups, and individuals collect rain for personal and public use. Rain is in general a natural phenomenon and occurs on Earth regularly. Yet for rain... Continue Reading →

Have you ever looked up at the sky, noticed dark clouds, and predicted that rain was on the way, yet it never came? Why doesn’t rain when it should? Looking closely there is something interesting with rainwater, namely: it is not just water. When you collect rainwater, you will notice that it generally contains sediment; ... Continue Reading →