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.
monochrome piano image by Paul Moore from Fotolia.com. Ragtime originated in African American culture and is a musical genre characterized by march and waltz musical influences alongside uptempo syncopated rhythms.agtime first became popular in dance halls in the 1890s, while revivals in the 1940s, 1950s and 1970s have ensured its place in history as a major musical movement. Ragtime had an impact in popular American culture, with the renowned composer Scott Joplin becoming a household name.