This picture is a simplified graphical depiction of the Curry Grid and the Hartmann Grid.
This grid is named after Manfred Curry, an American doctor born in Munich in 1899. Curry spent most of his life in Germany and was an enthusiastic sailor, author and inventor. He invented, among other things, the cam cleat and one of the first velomobiles. Although the grid is named after Curry, who published it in 1952, it was actually discovered by Siegfried Wittmann in 1950.
The Curry grid runs diagonally to the Hartmann global grid. Its lines measure between 12 and 16 inches in width and are spaced between 8 and 11.5 feet apart. Like the Hartmann grid, the Curry grid also encompasses the entire Earth. Moon cycles influence the intensity of the Curry grid. At full moon, energy levels are particularly strong where it intersects with the Hartmann Grid. Some maintain that if it also crosses an underground waterway at that point, it becomes especially dangerous for people. During the day, its intensity wanes, but at night it can lead to insomnia (Bachler and Living, 2007, 217-218; Dale, 2009, 108-109; Schumacher, 2005, 93-97). Experts believe that the Curry grid originates from cosmic radiation rather than radiation coming from the Earth (Leviton, 2001).