Which Greek mathematician is best remembered for his formulation of a hydrostatic principle?
Hydrostatic weighing Hydrostatic weighing Hydrostatic weighing, also referred to as "underwater weighing", "hydrostatic body composition analysis", and "hydrodensitometry" is a technique for measuring the mass per unit volume of a living person's body. It is a direct application of Archimedes' principle, that an object displaces its own volume of water. The procedure is based on Archimedes' principle, which states that: The buoyant force which water exerts on an immersed object is equal to the weight of water that the object displaces. Example 1: If a block of solid stone weighs 3 kilograms on dry land and 2 kilogram when immersed in a
Fermat's principle not hold standing alone, we now know it can be derived from earlier principles such as Huygens' principle. Historically, Fermat's principle has served as a guiding principle in the formulation of physical laws with the use of variational calculus (see Principle of least action). Fermat's principle In optics, Fermat's principle or the principle of least time, named after French mathematician Pierre de Fermat, is the principle that the path taken between two points by a ray of light is the path that can be traversed in the least time. This principle is sometimes taken as the definition of a ray