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Shark Wheel is a company based in Lake Forest, California that manufactures helical wheels of the same name. Rather than a traditional circular shape, the Shark Wheel is composed of one or many three-dimensional sine waves. The shape is a hybrid of a sphere and cube, taking on the properties of both shapes while in motion.
A satellite image of circular fields characteristic of center pivot irrigation, Kansas Farmland with circular pivot irrigation. Center-pivot irrigation (sometimes called central pivot irrigation), also called water-wheel and circle irrigation, is a method of crop irrigation in which equipment rotates around a pivot and crops are watered with sprinklers.
A water wheel is a machine for converting the kinetic energy of flowing or falling water into useful forms of power, often in a watermill. A water wheel consists of a large wheel (usually constructed from wood or metal), with numerous blades or buckets attached to the outer rim forming the drive mechanism. Water wheels were still in commercial ...
The following other wikis use this file: Usage on as.wikipedia.org হাংগৰ; Usage on bs.wikipedia.org Rušljoribe; Anatomija ajkula; Usage on de.wikipedia.org
The animal-powered sakia irrigation wheel was improved in and diffused further from Islamic Spain. The sakia [b] or animal-powered irrigation wheel was likely introduced to Islamic Spain in early Umayyad times (in the 8th century). Improvements to it were described by Hispano-Arabic agronomists in the 11th and 12th centuries.
Shark Anatomy (50693674756) The gill slits of a whale shark flaring as it expels water from its pharyngeal cavity. In the shark anatomy image, it depicts the beginning half of the shark, including the gills. The shark gills are especially important and were evolved from the chordate pharyngeal gill slits synapomorphy.
Shark is the naming term of all members of Selachimorpha suborder in the subclass Elasmobranchii, in the class Chondrichthyes. The Elasmobranchii also include rays and skates ; the Chondrichthyes also include Chimaeras .
Lamna ditropis Hubbs & Follett, 1947 (salmon shark) Lamna nasus Bonnaterre, 1788 (porbeagle) †Lamna attenuata Davis, 1888 †Lamna carinata Davis, 1888 †Lamna hectori Davis, 1888 †Lamna marginalis Davis, 1888 †Lamna quinquelateralis Cragin, 1894 †Lamna trigeri Coquand, 1860 †Lamna trigonata Agassiz, 1843; Genus †Lethenia Leriche, 1910