about an axis
101yaw axis — A vertical axis through an aircraft about which it yaws. Also called vertical axis, normal axis, z axis, and yawing axis …
102Theories about Stonehenge — Stonehenge has been subjected to many theories about its origin, ranging from the academic worlds of archaeology to explanations from mythology and the paranormal.Early interpretationsMany early historians were influenced by supernatural… …
103Polar axis — Polar Po lar, a. [Cf. F. polaire. See {Pole} of the earth.] 1. Of or pertaining to one of the poles of the earth, or of a sphere; situated near, or proceeding from, one of the poles; as, polar regions; polar seas; polar winds. [1913 Webster] 2.… …
104Colombian Coffee-Growers Axis — Coffee Cultural Landscape of Colombia * UNESCO World Heritage Site …
105Joint, atlas and axis — The joint between the atlas and axis bones. The atlas is the first cervical (neck) vertebra which is just under the head; it is named for Atlas, the Greek god who supported the world on his shoulders. The axis is the second cervical vertebra; it… …
106feathering axis — The axis about which the pitch angle of a helicopter rotor blade is varied. The feathering axis is the same as a spanwise axis …
107permanent axis — noun : the axis about which a free rigid body can rotate in equilibrium being in general the axis of greatest moment of inertia through the center of mass compare principal axis …
108Instantaneous axis of rotation — Instantaneous In stan*ta ne*ous, a. [Cf. F. instantan[ e].] [1913 Webster] 1. Done or occurring in an instant, or without any perceptible duration of time; as, the passage of electricity appears to be instantaneous. [1913 Webster] His reason saw… …
109Zone axis — Zone one (z[=o]n), n. [F. zone, L. zona, Gr. zw nh; akin to zwnny nai to gird, Lith. j[*u]sta a girdle, j[*u]sti to gird, Zend y[=a]h.] 1. A girdle; a cincture. [Poetic] [1913 Webster] An embroidered zone surrounds her waist. Dryden. [1913… …
110rotation axis — Crystall. an imaginary line through a crystal about which the crystal may be rotated a specified number of degrees and be brought back to its original position. Also called axis of symmetry, symmetry axis of rotation. Cf. symmetry element. [1900… …
