about an axis
111elastic axis — A spanwise line along the cantilever wing. Along this line, a load will produce bending but not torsion. The illustration shows an example of an elastic axis of a wing when it encounters gust. See also aileron reversal. If an up gust strikes the… …
112input axis — As it relates to a gyro, it means an axis normal (perpendicular) to the spin axis about which a rotation of the base causes a maximum precession output …
113pitch axis — The lateral axis of an aircraft or the axis about which an aircraft pitches in a nose up or nose down. See axes and pitch (i) …
114To roll about — Roll Roll, v. i. 1. To move, as a curved object may, along a surface by rotation without sliding; to revolve upon an axis; to turn over and over; as, a ball or wheel rolls on the earth; a body rolls on an inclined plane. [1913 Webster] And her… …
115Turn and turn about — Turn Turn, n. 1. The act of turning; movement or motion about, or as if about, a center or axis; revolution; as, the turn of a wheel. [1913 Webster] 2. Change of direction, course, or tendency; different order, position, or aspect of affairs;… …
116Debate about Cambrian Lophotrochozoans — Since 1990 there has been intense debate among paleontologists about the evolution in the Early Cambrian period of the super phylum Lophotrochozoa, which is thought to include the modern molluscs, annelid worms and brachiopods, as well as their… …
117List of books by or about Adolf Hitler — This list of Adolf Hitler books is an annotated bibliography using APA style citations of non fiction books about or by Adolf Hitler. There are thousands of books written about Hitler; therefore, the list has been segregated into groups to make… …
118Twinning axis — Twinning Twin ning, n. (Crystallog.) The assemblage of two or more crystals, or parts of crystals, in reversed position with reference to each other in accordance with some definite law; also, rarely, in artificial twinning (accomplished for… …
119pivotal axis — (MOLLUSCA: Bivalvia) An axis at the ligament about which the valves rotate …
120screw axis — /ˈskru æksəs/ (say skrooh aksuhs) noun an axis of symmetry about which the atoms in a crystal lattice are arranged …
