Title: Group for the Study of Reactive Motion
Content: Group for the Study of Reactive Motion The Moscow-based Group for the Study of Reactive Motion was a Soviet research bureau founded in 1931 to study various aspects of rocketry (, abbreviated , GIRD). In 1933 it was incorporated into the Reaction-Engine Scientific Research Institute (, , РНИИ, RNII). GIRD was created on September 15, 1931. There were a number of amateur groups and solitary researchers in existence, but GIRD was the world's first large professional rocketry program. The group was organized as four brigades and ten projects to study rocket engines and also winged and wingless missiles. Sergey Korolev,

Title: Projectile motion
Content: the object's inertia, no external horizontal force is needed to maintain the horizontal velocity component of the object. Taking other forces into account, such as friction from aerodynamic drag or internal propulsion such as in a rocket, requires additional analysis. A ballistic missile is a missile only guided during the relatively brief initial powered phase of flight, and whose subsequent course is governed by the laws of classical mechanics. Ballistics (gr. βάλλειν ('ba'llein'), "to throw") is the science of mechanics that deals with the flight, behavior, and effects of projectiles, especially bullets, unguided bombs, rockets, or the like; the science

Title: Ballistics
Content: Astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other spacecraft. The motion of these objects is usually calculated from Newton's laws of motion and Newton's law of universal gravitation. It is a core discipline within space mission design and control. Ballistics Ballistics is the field of mechanics that deals with the launching, flight, behavior, and effects of projectiles, especially bullets, unguided bombs, rockets, or the like; the science or art of designing and accelerating projectiles so as to achieve a desired performance. A ballistic body is a body with

Title: Ghost rockets
Content: investigation, with their leading scientist, physicist Dr. Paul Santorinis (Παύλος Σαντορίνης), in charge. Santorinis had been a developer of the proximity fuze on the first A-bomb and held patents on guidance systems for Nike missiles and radar systems. Santorinis was supplied by the Greek Army with a team of engineers to investigate what again were believed to be Soviet missiles flying over Greece. In a 1967 lecture to the Greek Astronomical Society, broadcast on Athens Radio, Santorinis first publicly revealed what had been found in his 1947 investigation. "We soon established that they were not missiles. But, before we could

Title: Ballistic Research Laboratory
Content: facilitated by his personal development of several items of equipment for the instrumentation used in exterior ballistics, the most outstanding development being the high-speed clock camera, which made possible the study of the characteristics of bombs and low velocity projectiles in flight. The results of his studies was credited with greatly improving design, performance, and military effectiveness of bombs and rockets. Other included members of the Scientific Advisory Committee (SAC) which was established in 1940. Among its member were: Other consultants included astronomer Dorrit Hoffleit; chemists John Gamble Kirkwood (recipient of the Langmuir Award), George Kistiakowsky (recipient of the Medal

Question: What science is the study of missiles in motion?
Answer: Ballistics