about an axis
51axis of freedom — Of a gyro; an axis about which a gimbal provides a degree of freedom of movement …
52axis of rotation — i. The line through the rotor head of a helicopter at right angles to the plane of rotation. The blade rotates around this axis. ii. The centerline about which the propeller rotates …
53axis or axis line — An imaginary straight line which indicates movement and the direction of movement. It can be observed in the painting War Series: Another Patrol by Jacob Lawrence (American, 1917 ). Also, especially in architecture, an imaginary straight line… …
54axis — axis1 [ aksɪs] noun (plural axes si:z) 1》 an imaginary line about which a body rotates or with respect to which it possesses rotational symmetry. 2》 an imaginary line which divides something in half, especially in the direction of its greatest… …
55axis of symmetry — the line about which a geometrical figure or drawing is symmetric * * * 1. Math. a straight line for which every point on a given curve has corresponding to it another point such that the line connecting the two points is bisected by the given… …
56axis of revolution — Math. an axis in a plane, about which an area is revolved to form a solid of revolution …
57axis of symmetry — noun Any of one or more lines about which a geometric figure is symmetric …
58axis — n. 1) a real or imaginary line through the centre of the body or one of its parts or a line about which the body or a part rotates. 2) the second cervical vertebra, which articulates with the atlas vertebra above and allows rotational movement of …
59Screw axis — The screw axis (helical axis or twist axis) of an object is a parameter for describing simultaneous rotation and translation components of that object.The axis is a directed line in space, along which a translation may occur, and about which… …
60Perpendicular axis theorem — In physics, the perpendicular axis theorem (or plane figure theorem) can be used to determine the moment of inertia of a rigid object that lies entirely within a plane, about an axis at right angles to the plane, given the moments of inertia of… …
