circular symmetrical stress
41Darrieus wind turbine — Fig. 1: A Darrieus wind turbine once used to generate electricity on the Magdalen Islands The Darrieus wind turbine is a type of vertical axis wind turbine (VAWT) used to generate electricity from the energy carried in the wind. The turbine… …
42Golf club (equipment) — Golf clubs are used in the sport of golf to hit a golf ball. Each club is composed of a shaft with a lance(grip) and a clubhead. Woods are used for long distance fairway shots; irons , the most versatile class used for a variety of shots, and… …
43Ulmus americana — Taxobox status = LC name = Ulmus americana image caption = Ulmus americana (American Elm) at Longwood Gardens, Kennett Square, Pennsylvania status = G5 status system = TNC status ref = Cite web publisher =NatureServe title = Ulmus americana work …
44Ostinato — In music, an ostinato (derived from Italian: stubborn , compare English: obstinate) is a motif or phrase, which is persistently repeated in the same musical voice. An ostinato is always a succession of equal sounds, wherein each note always has… …
45Ferroresonance — The phenomenon of Ferroresonance is the occurrence of an unstable high voltage, typically on 3 phase electrical systems which only occurs under specific conditions. The nature of the overvoltage can cause the failure of equipment.Ferroresonance… …
46cell — cell1 cell like, adj. /sel/, n. 1. a small room, as in a convent or prison. 2. any of various small compartments or bounded areas forming part of a whole. 3. a small group acting as a unit within a larger organization: a local cell of the… …
47radiation — radiational, adj. /ray dee ay sheuhn/, n. 1. Physics. a. the process in which energy is emitted as particles or waves. b. the complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and… …
48Henri Poincaré — Infobox Scientist box width = 300px name = Henri Poincaré image size = 250px caption = Jules Henri Poincaré (1854 1912). Photograph from the frontispiece of the 1913 edition of Last Thoughts. birth date = birth date|df=yes|1854|4|29 birth place …
49Breaststroke — is a swimming style swum on the breast. It is the most popular recreational style due to its stability and the ability to keep the head out of the water a large portion of the time. In most swimming classes, beginners learn either the… …
50Stereophonic sound — Stereophonic sound, commonly called stereo, is the reproduction of sound, using two or more independent audio channels, through a symmetrical configuration of loudspeakers, in such a way as to create a pleasant and natural impression of sound… …
