circular+motion
71Celestial mechanics — is the branch of astrophysics that deals with the motions of celestial objects. The field applies principles of physics, historically classical mechanics, to astronomical objects such as stars and planets to produce ephemeris data. Orbital… …
72Newton's law of universal gravitation — Classical mechanics Newton s Second Law History of classical mechanics  …
73Rotation around a fixed axis — Rotational motion can occur around more than one axis at once, and can involve phenomena such as wobbling and precession. Rotation around a fixed axis is a special case of rotational motion, which does not involve those phenomena. The kinematics… …
74Reactive centrifugal force — A reactive centrifugal force is the reaction force to a centripetal force.A mass undergoing circular motion constantly accelerates toward the axis of rotation. This centripetal acceleration is caused by a centripetal force, which is exerted on… …
75Vibration — For the soul music group, see The Vibrations. For the machining context, see Machining vibrations. For the albums, see Vibrations (Roy Ayers album) and Vibrations (The Three Sounds album). Classical mechanics …
76Oort constants — The Oort constants (discovered by Jan Oort) A and B are empirically derived parameters that characterize the local rotational properties of our galaxy, the Milky Way, in the following manner: where V0 and R0 are the rotational velocity and… …
77Accelerated reference frame — In theoretical physics, an accelerated reference frame is usually a coordinate system or frame of reference, that undergoes a constant and continual change in velocity over time as judged from an inertial frame. An object in an accelerated frame… …
78Secondary flow — In fluid dynamics, a secondary flow is a relatively minor flow superimposed on the primary flow, where the primary flow usually matches very closely the flow pattern predicted using simple analytical techniques and assuming the fluid is inviscid …
79Crank (mechanism) — A crank is an arm attached at right angles to a rotating shaft by which reciprocating motion is imparted to or received from the shaft. It is used to change circular into reciprocating motion, or reciprocating into circular motion. The arm may be …
80The World (Descartes) — The World , originally titled Le Monde and also called Treatise on the Light , is a book by René Descartes (1596 ndash;1650). Written between 1629 and 1633, it contains a relatively complete version of his philosophy, from method, to metaphysics …
