Learn about the Great Pacific Garbage Patch with iMinds insightful knowledge series.In 1997, a Californian man named Charles Moore was sailing home from Hawaii after competing in a boat race. On a whim, he decided to change course and head through a part of the eastern Pacific Ocean known as the North Pacific Subtropical Gyre. Known to seafarers as "the doldrums", this is an area of light or no wind and little boat traffic. Its calm weather is due to a permanent column of high pressure air, which causes the ocean for hundreds of miles across to swirl slowly towards its centre.iMinds brings targeted knowledge to your eReading device with short information segments to whet your mental appetite and broaden your mind.