Some rocket engines burn liquid fuels while some burn solid fuels. Solid fuel rocket engines are sometimes called rocket motors. Liquid fuel rocket engines often require complex pumps and valves to properly move (and pressurize) the liquids from the fuel tank to the actual engine. These machines must work in extreme temperatures and pressures.
Esophagitis is any inflammation or irritation of the esophagus (the tube that sends food from your throat down to your stomach).Common causes include reflux (stomach contents backing up into the esophagus), certain oral medications, and bacterial or viral infections.This disorder can cause a wide variety of symptoms, including trouble swallowing, sore throat, and heartburn.ommon causes include reflux (stomach contents backing up into the esophagus), certain oral medications, and bacterial or viral infections. This disorder can cause a wide variety of symptoms, including trouble swallowing, sore throat, and heartburn.
The esophagus is a muscular tube connecting the throat (pharynx) with the stomach. The esophagus is about 8 inches long, and is lined by moist pink tissue called mucosa.The esophagus runs behind the windpipe (trachea) and heart, and in front of the spine. Just before entering the stomach, the esophagus passes through the diaphragm. Esophageal ulcer: An erosion in an area of the lining of the esophagus. 2  This is often caused by chronic reflux. 3  Esophageal stricture: A narrowing of the esophagus. 4  Chronic irritation from reflux is the usual cause of esophageal strictures.