to gain velocity
41Modulational instability — In the field of nonlinear optics, modulational instability is a phenomenon whereby deviations from an optical waveform are reinforced by nonlinearity, leading to the generation of spectral sidebands and the eventual breakup of the waveform into a …
42Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
43Weather radar — in Norman, Oklahoma with rainshaft …
44Servo drive — A servo drive is a special electric amplifier used to power electric servo motors. It monitors feedback signals from the motor and continually adjusts for deviation from expected behavior.A servo drive receives a command signal from a control… …
45Gyro monorail — The gyro monorail, gyroscopic monorail, gyro stabilized monorail, or gyrocar all denote a single rail land vehicle, road or rail, which uses the gyroscopic action of a spinning wheel, which is forced to precess, to overcome the inherent inverted… …
46List of comic book drugs — This is a list of fictional performance enhancers, serums, trigger chemicals, booster drugs, and mutagenic foods in the various comic book universes, that were used to give a specific hero or villain their powers. This list also provides a brief… …
47launch vehicle — Aerospace. a rocket used to launch a spacecraft or satellite into orbit or a space probe into space. [1955 1960] * * * Rocket system that boosts a spacecraft into Earth orbit or beyond Earth s gravitational pull. A wide variety of launch vehicles …
48Effort sur une voile — Exemple d effort du vent sur différents types de voile de voiliers classiques lors d une régate à Cannes en 2006. Le principe d une voile est de récupérer l énergie du vent et de la transmettre au bateau. L effet propulsif est réparti sur toute… …
49Rocket — This article is about vehicles powered by rocket engines. For other uses, see Rocket (disambiguation). A Soyuz U, at Baikonur Site 1/5 A rocket is a missile, spacecraft, aircraft or other vehicle which obtains thrust from a rocket engi …
50Pioneer 11 — Infobox Spacecraft Caption= Pioneer 11 at Saturn (artist s impression) Name= Pioneer 11 Mission Type= Fly by, Deep Space Flyby Of= Jupiter, Saturn, Outer Solar System Mass= 259 kg Organization= Ames Research Center NASA Launch Vehicle=… …
