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 Devil of the Earth called Demonobirth suddenly appears. Who is he, and what will happen to the boys? The story takes an unexpected turn. The Devil of the Earth "The Devil of the Earth" is an anti-war science fiction short story depicting a giant city built under the ground as a shelter from world wars, and conspiracies over its construction. One day, in a small village, a large project to build an underground city begins under the supervision of Dr. Takano with the specific aim of preparing for nuclear war. Eiji and his brother Eizo are forced to get involved in terrible plots over