Marine current power the rotation of the earth. The sun acts as the primary driving force, causing winds and temperature differences. Because there are only small fluctuations in current speed and stream location with minimal changes in direction, ocean currents may be suitable locations for deploying energy extraction devices such as turbines. Other effects such as regional differences in temperature and salinity and the Coriolis effect due to the rotation of the earth are also major influences. The kinetic energy of marine currents can be converted in much the same way that a wind turbine extracts energy from the wind, using various types
The Winds of Dune The Winds of Dune The Winds of Dune is a science fiction novel written by Brian Herbert and Kevin J. Anderson, set in the "Dune" universe created by Frank Herbert. Released on August 4, 2009, it is the second book in the "Heroes of Dune" series and chronicles events between Frank Herbert's "Dune Messiah" (1969) and "Children of Dune" (1976).<ref name="11/29/09 blog"></ref> Before publication, the novel's title was initially announced as Jessica of Dune.<ref name="4/23/07 blog"></ref><ref name="4/14/2008 blog"></ref> The novel rose to #15 on "The New York Times" Best Seller list in its second week of publication. The novel opens