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.
Gastroesophageal reflux disease (GERD) is a common digestive disorder with symptoms of heartburn in which stomach contents regurgitate (reflux) into the esophagus often causing inflammation and damage to the esophagus and occasionally to the lungs and vocal cords.ERD is an abbreviation for gastroesophageal reflux disease, a condition that refers to damage to the lining of the lower esophagus caused as a result of frequent or prolonged exposure to stomach acid.