— fluid dynamics / fluid mechanics Everything is Fluid Mechanics and Navier-Stokes equations — Chris Rogers, Tufts Center for Engineering Education and Outreach Fluid Mechanics – science of fluids at rest or in motion in aeronautics, chemical, civil, and mechanical engineering, meteorology, naval architecture, and oceanography. Fluid mechanics or fluid dynamics is the study of the macroscopic physical behaviour of fluids . Fluids are specifically liquids and gases though some other materials and systems can be described in a similar way. The solution of a fluid dynamic problem typically involves calculating for various properties of the fluid, such as velocity, … Continue reading fluid mechanics

Gears – Two toothed wheels fit together either directly or through a chain or belt so one wheel will turn the other. Some gears may have a screw or a toothed shaft in place of one of the wheels. A gear may also be a combination of toothed wheels that produces a certain speed (such as a bicycle’s top gear which makes the bike go fast, and the low gear for slow speed.) Mechanical gears in Nature – gear mechanisms previously thought to be solely man-made have an evolutionary precedent. Scientists say this is the “first observation of mechanical gearing … Continue reading gears