The Presence of Hydrodynamics in Modern Sciences: Optimizing Methods and Tools “Water is the beginning of everything” (Tales of Mileto) “Air is the beginning of everything” (Anaxímenes of Mileto) Why is it important to study Hydrodynamics? The answer may be strictly technical, but it may also involve some kind of human feeling about our environment, and our (eventual) limitations to deal with its fluidic constituents.