Latitude exact relationship of parallels and meridians with horizontal and vertical: both are complicated curves. On the sphere the normal passes through the centre and the latitude () is therefore equal to the angle subtended at the centre by the meridian arc from the equator to the point concerned. If the meridian distance is denoted by then where denotes the mean radius of the Earth. is equal to . No higher accuracy is appropriate for since higher-precision results necessitate an ellipsoid model. With this value for the meridian length of 1 degree of latitude on the sphere is (60.0 nautical miles).
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