Windows only: Free utility CrystalDiskInfo keeps tabs on your hard drive health, including temperature, S.M.A.R.T. disk reporting, and the number of power cycles and run time on each disk. Although ...
AZOM: Investigating Changes in Elemental Composition of a Hard Disk Platter from the Surface Down to the Substrate
A hard disk platter is a part of a hard disk drive, used to store the data. Hard drives can have one or more hard disk platters. The platters possess complex layer structures, which can be split into ...
Investigating Changes in Elemental Composition of a Hard Disk Platter from the Surface Down to the Substrate
Sciatica refers to pain that travels along the path of the sciatic nerve. The sciatic nerve travels from the buttocks and down each leg. Sciatica most often happens when a herniated disk or an overgrowth of bone puts pressure on the lumbar spine nerve roots. This happens "upstream" from the sciatic nerve. This causes inflammation, pain and often some numbness in the affected leg.
Compared with a bulging disk, a herniated disk is more likely to cause pain because it protrudes farther and is more likely to compress nerve roots.
A herniated disk, which can occur in any part of the spine, most often occurs in the lower back. Depending on where the herniated disk is, it can result in pain, numbness or weakness in an arm or a leg. Many people have no symptoms from a herniated disk. For people who do have symptoms, the symptoms tend to improve over time. Surgery is usually not needed to relieve the problem.