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Lesson 2 origin of the solar system
- 1. LESSON 2 : Origin of the Solar System
- 2. Alternative Hybrid Education and Asynchronous Distance Learning Theories about the Origin of the Solar System
- 3. Alternative Hybrid Education and Asynchronous Distance Learning A Star System, also called “Stellar System” is a small number of stars that orbit each other. It should be noted Earth belongs to the solar system because the sun is a star.
- 4. Alternative Hybrid Education and Asynchronous Distance Learning 1. Descartes’ Vortex Theory
- 5. Alternative Hybrid Education and Asynchronous Distance Learning Rene Descartes is a French mathematician and physicist. According to his model, the solar system was formed into bodies with nearly circular orbits because of the whirlpool-like motion in the pre-solar materials. He explained the orbits of the planets are the primary whirlpool motion and the satellites the secondary whirlpool motion.
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- 7. Alternative Hybrid Education and Asynchronous Distance Learning 2. Kant-Laplace Nebular Theory
- 8. Alternative Hybrid Education and Asynchronous Distance Learning Based on the idea of Descartes, Immanuel Kant, and Pierre Simon Laplace proposed the nebular theory which suggested that a great cloud of gas and dust, called nebula, begins to collapse because of gravitational pull. As the cloud contracted, it spun more rapidly.
- 9. Alternative Hybrid Education and Asynchronous Distance Learning Nebular Hypothesis Emanuel Swedenborg, Immanuel Kant, and Pierre- Simon Laplace independently thought of a rotating gaseous cloud that cools and contracts in the middle to form the sun and the rest into a disc that become planets.
- 10. Alternative Hybrid Education and Asynchronous Distance Learning They assumed that the mutual gravitational attractions of the particles caused them to start moving and colliding at which point chemical forces kept them bonded together. As some of these aggregates became larger, they grow more rapidly, ultimately forming the planets.
- 11. Alternative Hybrid Education and Asynchronous Distance Learning This nebular theory failed to account for the distribution of the angular momentum in the Solar System
- 12. Alternative Hybrid Education and Asynchronous Distance Learning 3. Buffon’s Collision Theory
- 13. Alternative Hybrid Education and Asynchronous Distance Learning George Comte de Buffon is a French naturalist who proposed that the planets were formed by the collision of the sun with a giant comet. The resulting debris formed into planets that rotate in the same direction as they revolve around the sun.
- 14. Alternative Hybrid Education and Asynchronous Distance Learning 4. Jean and Jeffrey’s Tidal Theory
- 15. Alternative Hybrid Education and Asynchronous Distance Learning Sir James Hopwood Jeans, a British mathematician, and Harold Jeffrey, suggested a dualistic theory in which the sun and planets were produced by different mechanisms. The planets were formed from the substance that was torn out of the sun. As a speeding massive star passed near sun, it pulled off material due to gravitational attraction. The torn off material subsequently condensed to form the planets.
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- 17. Alternative Hybrid Education and Asynchronous Distance Learning
- 18. Alternative Hybrid Education and Asynchronous Distance Learning •The Solar System was formed from the sun and another intruding stars. •Sun was a gaseous mass. Another star came close to it, pulled some material from the sun due to its gravitational pull-similar to process of tides on earth.
- 19. Alternative Hybrid Education and Asynchronous Distance Learning •Bigger star continued to move on its path, the ejected material started revolving around the sun-cooled to form planetesimals. •Attribution of these planetisimals created planets. https://prezi.com/0koqslbb5tkm/gaseous- tidal-theory/
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- 21. Alternative Hybrid Education and Asynchronous Distance Learning END OF LESSON 2
- 22. Alternative Hybrid Education and Asynchronous Distance Learning What are the theories on the origin of the Solar System?
- 23. Alternative Hybrid Education and Asynchronous Distance Learning 1. Descartes’ Vortex Theory 2. Kant-Laplace Nebular Theory 3. Buffon’s Collision Theory 4. Jeans Jeffrey’s Tidal Theory