see strength of materialsstrength of materials, measurement in engineering of the capacity of metal, wood, concrete, and other materials to withstand stress and strain. Stress is the internal force exerted by one part of an elastic body upon the adjoining part, and strain is the deformation or change in. ..... Click the link for more information.
The Koreans are believed to have originated from ancient China. This is gathered from the archaeological and linguist evidence.
After the Korean War, American started to refer to Koreans as Gooks for short term thinking it was a short name for Korean. There are many different stories where gook came from such as korean foods or HanGOOK.