impinging
51Solar 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… …
52Problem of evil — Part of a series on God General conceptions …
53Turbine — A turbine is a rotary engine that extracts energy from a fluid flow. Claude Burdin (1788 1873) coined the term from the Latin turbo , or vortex, during an 1828 engineering competition. Benoit Fourneyron (1802 1867), a student of Claude Burdin,… …
54Tesla turbine — The Tesla turbine is a bladeless centrifugal flow turbine expander patented by Nikola Tesla in 1913. It is referred to as a bladeless turbine because it uses the boundary layer effect and not a fluid impinging upon the blades as in a conventional …
55First Amendment to the United States Constitution — First Amendment redirects here. For other uses, see First Amendment (disambiguation). United States of America This a …
56Inertial confinement fusion — (ICF) is a process where nuclear fusion reactions are initiated by heating and compressing a fuel target, typically in the form of a pellet that most often contains a mixture of deuterium and tritium.To compress and heat the fuel, energy is… …
57Free-space path loss — In telecommunication, free space path loss (FSPL) is the loss in signal strength of an electromagnetic wave that would result from a line of sight path through free space, with no obstacles nearby to cause reflection or diffraction. It does not… …
58Hagia Sophia — For other uses, see Hagia Sophia (disambiguation). Aghia Sophia redirects here. For the steamship, see SS Aghia Sophia. Hagia Sophia Ayasofya (Turkish) Ἁγία Σοφία (Greek) Sancta Sophia (Latin) …
59Potential flow — streamlines around a NACA 0012 airfoil at 11° angle of attack, with upper and lower streamtubes identified. In fluid dynamics, potential flow describes the velocity field as the gradient of a scalar function: the velocity potential. As a result,… …
60The Wind — Infobox Film name = The Wind image size = caption = Theatrical poster director = Victor Sjöström producer = André Paulvé Fred Orain writer = Story: Dorothy Scarborough Screenplay: Frances Marion starring = Lilian Gish Lars Hanson Montagu Love… …
