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.
This is called syncopation. To illustrate, let's take a simple melody, Mary Had A Little Lamb, and see how it would be played in ragtime. First let's to the basic melody and chords. Now let's give it a ragtime bass. Notice how the bass consists of alternating octaves and chords. The octaves are played on the downbeats and the chords on the upbeats. Let's add the melody now. It's still not ragtime yet because the melody is not syncopated or played between the beats.