vibrating tool
31materials science — the study of the characteristics and uses of various materials, as glass, plastics, and metals. [1960 65] * * * Study of the properties of solid materials and how those properties are determined by the material s composition and structure, both… …
32Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …
33Drosophila melanogaster — Male Drosophila melanogaster Scientific classification Kingdom …
34Drill string — A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied as the assembled collection of… …
35STS-61 — Infobox Space mission mission name = STS 61 insignia = Sts 61 patch.png shuttle = Endeavour launch pad = 39 B launch = 2 December, 1993, 4:26 a.m. landing = 13 December, 1993, 12:26.25 a.m. EST, Runway 33, KSC duration = 10 d 19 h 58 min 37 s… …
36ultrasonics — /ul treuh son iks/, n. (used with a sing. v.) the branch of science that deals with the effects of sound waves above human perception. [1930 35; see ULTRASONIC, ICS] * * * Vibrational or stress waves in elastic media that have a frequency above… …
37high-pressure phenomena — ▪ physics Introduction changes in physical, chemical, and structural characteristics that matter undergoes when subjected to high pressure. pressure thus serves as a versatile tool in materials research, and it is especially important in… …
38Gyroscope — A gyroscope is a device for measuring or maintaining orientation, based on the principles of angular momentum [ [http://demonstrations.wolfram.com/Gyroscope/ Gyroscope] by Sándor Kabai, The Wolfram Demonstrations Project.] [… …
39Wally West — For other people named Wally West, see Wally West (disambiguation). Wally West Wally West, the third Flash. Cover art for The Flash vol. 2, #207, by Michael Turner. Publication information …
40Atom vibrations — The atoms and ions, which are bonded with each other with considerable interatomic forces, are not motionless. Due to the consistent vibrating movements, they are permanently deviating from their equilibrium position. Elastic waves of different… …
