Published on: April 2, 2013. NASA X-43A uses a drop launch method: it is lifted into the air by a larger aircraft and then dropped. The initial energy for propulsion is provided by a booster rocket, which is discarded when the aircraft reaches its target altitude and speed. From that moment, the X-43A is powered by its own jet engine.
Wiktionary(0.00 / 0 votes)Rate this definition: ragtime(Noun) A musical form, predating jazz, characterized by a specific type of syncopation in which melodic accents occur between metrical beats. ragtime(Noun) A piece of music in this style.
Ragtime fell out of favor as jazz claimed the public's imagination after 1917, but there have been numerous revivals since the music has been re-discovered. First in the early 1940s, many jazz bands began to include ragtime in their repertoire and put out ragtime recordings on 78 rpm records.