In other words, the. compressor elevates the boiling. point of the refrigerant to a point. at which the air (or water) mov-. ing across the condenser is low. enough to condense the refriger-. ant to a liquid. Additional passes.
The most common cause is a herniated disk: When a disk develops a tear or crack and bulges into the spinal canal, it can pinch the sciatic nerve. Usually symptoms clear up within about 6 weeks, but for some people, the pain can last.
Sciatica facts. 1  Sciatica is nerve pain from irritation of the sciatic nerve. 2  The sciatic nerve is the largest nerve in the body. 3  Sciatica pain is typically felt from the low back to behind the thigh and radiating down below the knee.4  Treatments for sciatica depend on the underlying cause and the severity of the pain.ciatica facts. 1  Sciatica is nerve pain from irritation of the sciatic nerve. 2  The sciatic nerve is the largest nerve in the body. 3  Sciatica pain is typically felt from the low back to behind the thigh and radiating down below the knee.