planetary model
1Planetary science — Planetary science, also known as planetology and closely related to planetary astronomy, is the science of planets, or planetary systems, and the solar system. Incorporating an interdisciplinary approach, planetary science draws from diverse… …
2Planetary migration — occurs when a planet or other stellar satellite interacts with a disk of gas or planetesimals, resulting in the alteration of the satellite s orbital parameters, especially its semi major axis. The generally accepted theory of planet formation… …
3Planetary mass — The four terrestrial planets in the Solar System, to scale. Note that Mars (to the far right) is about half the diameter of the Earth, but only one ninth of the mass …
4Planetary system — A planetary system consists of the various non stellar objects orbiting a star such as planets, moons, asteroids, meteoroids, comets, and cosmic dust. [p. 394, The Universal Book of Astronomy, from the Andromeda Galaxy to the Zone of Avoidance ,… …
5Planetary boundary layer — Depiction of where the planetary boundary layer lies on a sunny day The planetary boundary layer (PBL), also known as the atmospheric boundary layer (ABL), is the lowest part of the atmosphere and its behavior is directly influenced by its… …
6Planetary differentiation — In planetary science, planetary differentiation is the process of separating out different constituents of a planetary body as a consequence of their physical or chemical behaviour, where the body develops into compositionally distinct layers;… …
7Model T — an automobile with a 2.9 liter, 4 cylinder engine, produced by the Ford Motor Company from 1909 through 1927, considered to be the first motor vehicle successfully mass produced on an assembly line. * * * Automobile built by the Ford Motor Co.… …
8planetary atom model — planetinis atomo modelis statusas T sritis fizika atitikmenys: angl. planetary atom model vok. Planetenmodell des Atoms, n rus. планетарная модель атома, f pranc. modèle planétaire de l’atome, m …
9planetary transmission — A form of gear used by Benz in which small pinions revolve around a central or sun gear and mesh with an outer ring gear called the annulus. Type used in the Ford Model T. Also called epicyclic gearbox and sun and planet gears …
10Bohr model — In atomic physics, the Bohr model created by Niels Bohr depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus mdash;similar in structure to the solar system, but with… …
