Nebular Theory The nebular theory states that our solar system formed from the gravitational collapse of a giant interstellar gas cloud—the solar nebula. (Nebula is the Latin word for cloud.) Kant and Laplace proposed the nebular hypothesis over two centuries ago. A large amount of evidence now...
The nebular theory states that our solar system formed from the gravitational collapse of a giant interstellar gas cloud—the solar nebula (Nebula is the Latin word for cloud) Kant and Laplace proposed the nebular hypothesis over two centuries ago A large amount of evidence now supports this idea...
SolarNebulaHypothesis TheFormationofPlanets Asthesolarnebulacooledandflattenedintoadisksome200AUindiameter,materialsbeganto“freeze”outinaprocesscalledcondensation(changingfromagastoasolidorliquid). Theingredientsofthesolarsystemconsistof4categories(with%abundance): ...
太阳系形成The Formation of the Solar System:Theories Old and New(2007) 星级: 341 页 module 6modelling the formation of the solar system:模块6modelling太阳系的形成 星级: 66 页 formation of the solar system 星级: 17 页 module 6modelling the formation of the solar system 星级: 37 页...
solar nebula interrupted collapsesolar radiusPrentice (1978a, b), in his modern Laplacian theory of the origin of the solar system, has established a scenario in which he finds the ratio of the orbital radii of successively disposed gaseous rings to be a constant 1.69. In an attempt to ...
While we do not yet have a wholly complete answer, a consensus has arisen about the most likely series of events that led to the present-day system of the Sun and planets. A key piece of evidence about the origin of the solar system is that all the planets orbit the Sun in the same...
1.A key piece of evidence about the origin of the solar system is that all the planets orbit the Sun in the same direction and in nearly the same plane.As long ago as the eighteenth century, German philosopher Immanuel Kant and French scientist Pierre-Simon deLaplace independently suggested ...
The overall evolution of the solar system is discussed in terms of what is called the Kyoto model. Starting from the formation of the solar nebula, a multistep process is followed in detail, including growth and sedimentation of dust grains in the nebula, formation of planetesimals due to frag...
solarformationmodulecrateringplanetesimalsplanets Module6: ModellingtheFormation oftheSolarSystem Activity2: PlanetaryEvolution Summary (a)theevolutionoftheterrestrialplanets: accretion,differentiation,cratering,basinfilling, platetectonics,volcanism,weathering;and (b)theevolutionoftheJovianplanets. InthisActivity,wewi...
B选项，太阳内部的核反应迫使一些物质向太阳星云的边缘延伸。与原文第三段首句“星云的每个部分都对其他部分施加了引力，这些相互的引力往往会使星云收缩。”和第四段首句“当你掉落一个球时，地球的引力使球在落下时行得越来越快;同样，向内朝向原太阳落下的物质也会加快速度。”相悖，排除。