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The principles of flight dynamics are used to model a vehicle's powered flight during launch from the Earth; a spacecraft's orbital flight; maneuvers to change orbit; translunar and interplanetary flight; launch from and landing on a celestial body, with or without an atmosphere; entry through the atmosphere of the Earth or other celestial body ...
Singapore Airlines Boeing 747-400 scale display model Group of students with their wooden model airplanes in Sonta, Serbia, 1936. A model aircraft is a physical model of an existing or imagined aircraft, and is built typically for display, research, or amusement. Model aircraft are divided into two basic groups: flying and non-flying.
The Model Airplane; Model Airplane Factory; Modelworks Direct; Model Factory; Mountain Models; Mugi twinwall polypropylene aircraft; Old Planes; Paperwarbirds; Pilot R/C; RC Factory Czech; Risesoon; Schabak; SIG Manufacturing; Sterling; Stevens AeroModel USA; Stinson Aircraft; Telink (Czech Republic) Tough Jets [2] Twisted Hobbys; Veyron Models ...
Jetex power made a big impact in the late 1940s and early 1950s, allowing new sorts of models, scale and duration, to be designed. During the 1960s, Jetex propellant pellets found another use by AP Films/Century 21, in their ' Supermarionation ' TV series, when they were fitted to the undersides of miniature ground vehicles to emit jets of gas ...
Superior planets: Planets whose orbits lie outside the orbit of Earth. [nb 1] Jupiter, Saturn, Uranus and Neptune: Trojan planet: A planet co-orbiting with another planet. The discovery of a pair of co-orbital exoplanets has been reported, but later retracted. [3] One possibility for the habitable zone is a trojan planet of a gas giant close to ...
The atmosphere of Earth is composed of a layer of gas mixture that surrounds the Earth's planetary surface (both lands and oceans), known collectively as air, with variable quantities of suspended aerosols and particulates (which create weather features such as clouds and hazes), all retained by Earth's gravity.
“The planet is basically super fluffy” because it's made mostly of light gases rather than solids, lead author Khalid Barkaoui of Massachusetts Institute of Technology said in a statement
"Inferior planet" refers to Mercury and Venus, which are closer to the Sun than Earth is. "Superior planet" refers to Mars, Jupiter, Saturn, Uranus, and Neptune (the latter two added later), which are further from the Sun than Earth is. The terms are sometimes used more generally; for example, Earth is an inferior planet relative to Mars.