Fluid mechanics, an ancient Greek concept, was first introduced by Archimedes around 250 BC. The first law of fluid mechanics, the conservation of mass, states that mass is conserved within a control volume for constant-density fluids. Isaac Newton, an ancient Greek, first described fluid viscosity in his 1687 Principia. The origin of fluid dynamics can be traced back to Leonardo da Vinci, who was educated at Plato's Academy. The Reynolds theory of fluid mechanics explains the relationship between mass and viscosity. You may also like : HydroGeek: The newsletter for researchers of water resources https://hydrogeek.substack.com/ Baipatra VSC: Enroll for online courses for Free http://baipatra.ws Energy in Style: Participate in Online Internships for Free http://energyinstyle.website Innovate S: Online Shop for Water Researchers https://baipatra.stores.instamojo.com/ Call for Paper: International Journal of HydroClimatic Engineering http://energyinstyle.website/journals/ Hydro Geek