The study of how [[fluid]]s move. Fluids include [[water]] and [[gases]] (such as [[air]]).<ref>http://virtualskies.arc.nasa.gov/glossary/F.html</ref>
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'''Fluid dynamics''' is the study of how [[fluid]]s move. Fluids include [[water]] and [[gases]] (such as [[air]]).<ref>http://virtualskies.arc.nasa.gov/glossary/F.html</ref>