axial rotation
71Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth   …
72Gear — For the gear like device used to drive a roller chain, see Sprocket. This article is about mechanical gears. For other uses, see Gear (disambiguation). Two meshing gears transmitting rotational motion. Note that the smaller gear is rotating… …
73Computed tomography — tomos (slice) and graphein (to write).Computed tomography was originally known as the EMI scan as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial… …
74Retrograde motion — This article is about retrograde motions of celestial bodies relative to a gravitationally central object. For the apparent motion as seen from a particular vantage point, see Apparent retrograde motion. Retrograde orbit: the satellite (red)… …
75Planet — This article is about the astronomical object. For other uses, see Planet (disambiguation) …
76Uranus — This article is about the planet. For other uses, see Uranus (disambiguation). Uranus   …
77celestial mechanics — the branch of astronomy that deals with the application of the laws of dynamics and Newton s law of gravitation to the motions of heavenly bodies. [1815 25] * * * Branch of astronomy that deals with the mathematical theory of the motions of… …
78Mercury (planet) — Mercury  ☿ …
79Synthetic molecular motors — are molecular machines capable of rotation under energy input. Although the term molecular motor has traditionally referred to a naturally occurring protein that induces motion, some groups also use the term when referring to non biological, non… …
80solids, mechanics of — ▪ physics Introduction science concerned with the stressing (stress), deformation (deformation and flow), and failure of solid materials and structures. What, then, is a solid? Any material, fluid or solid, can support normal forces.… …
