Treatments for gum disease vary from medication to surgery. Learn more about the options.
(plural maiden flights) The first flight of an airplane or other airborne vehicle, usually used to test or demonstrate the functions of the systems. The manufacturer's CEO was confident enough to ride as a passenger on the airship's maiden flight.
A jet aircraft (or simply jet) is an aircraft (nearly always a fixed-wing aircraft) propelled by jet engines (jet propulsion).ocket-powered jet aircraft were pioneered in Germany. The first aircraft to fly under rocket power was the Lippisch Ente, in 1928. The Ente had previously been flown as a glider. The next year, in 1929, the Opel RAK.1 became the first purpose-built rocket plane to fly.