constant mesh
121Solar sail — Solar sails (also called light sails or photon sails, especially when they use light sources other than the Sun) are a proposed form of spacecraft propulsion using large membrane mirrors. Radiation pressure is about 10 5 Pa at Earth s distance… …
122Vicarius Filii Dei — (Latin: Vicar or Representative of the Son of God ) is a phrase used in the forged Donation of Constantine to refer to Saint Peter. It also features in the argument put forth by some Protestant groups who identify the phrase with the number of… …
123Involute gear — Line of Action) runs along a tangent common to both base circles. (In this situation, there is no force, and no contact needed, along the opposite common tangent not shown.) The involutes here are traced out in converse fashion: points (of… …
124Coastal management — This article is about coastal management aimed to prevent erosion and flooding. For broader management issues, see Integrated coastal zone management. Oosterscheldekering sea wall, the Netherlands. In some jurisdictions the terms sea defense and… …
125Computer network — Computer networks redirects here. For the periodical, see Computer Networks (journal). Datacom redirects here. For other uses, see Datacom (disambiguation). Internet map. The Internet is a global system of interconnected computer networks that… …
126Grid (spatial index) — In the context of a spatial index, a grid (a.k.a. mesh , also global grid if it covers the entire surface of the Globe) is a regular tessellation of a manifold or 2 D surface that divides it into a series of contiguous cells, which can then be… …
127Finite element method — The finite element method (FEM) (sometimes referred to as finite element analysis) is a numerical technique for finding approximate solutions of partial differential equations (PDE) as well as of integral equations. The solution approach is based …
128Smart grid — Public infrastructure …
