Coal used for this process is called steaming coal. In 2008 77% of the electricity generated in Australia was produced by coal fired power stations (includes black and brown coals). Some types of black coal are suitable for coke-making.
These symptoms may occur in the back, leg and down to the foot. The most common nerve irritation originating from the lumbar spine is Sciatica. This is an irritation of the sciatic nerve, which can produce pain, numbness, and weakness down the leg along the areas innervated by the sciatic nerve.
You are the owner of this article. The peripheral nervous system can often heal itself from injuries. The central nervous system includes the brain and spinal cord. The peripheral nervous system is comprised of all the nerve branches that leave the skull or spine to feed the individual muscles and areas of sensation.