lec 5 - GE105 Continents Adrift Continents Adrift 11 Earths...

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Unformatted text preview: GE105 Continents Adrift Continents Adrift 11 Earths magnetic field and polar wander Lecture 1. Introduction and course overview. Lecture 2. Distance and time. Lecture 3. Planet building and Earths layered structure. Lecture 4. Wegeners Continental Drift hypothesis. Lecture 5. Earths magnetic field and polar wander. Lecture 6. Reversals and sea floor spreading. Lecture 7. Plate tectonics spreading and rifting. Lecture 8. Plate tectonics collision. Lecture 9. The wave that shook the world (movie) Lecture 10. Earthquakes I. Lecture 11. Earthquakes II. Lecture 12. Volcanoes and mantle convection Lecture 13. Final Exam (FEBRUARY 17, 2011) GE105 GE105 Continents Adrift Continents Adrift 22 The magnetic field as shield against space weather Earths magnetic field protects us against the solar wind Solar particles (and radiation from distant stellar explosions) follow the magnetic field lines and are directed towards the poles aurora (1 AU) GE105 GE105 Continents Adrift Continents Adrift 33 Size matters The smaller you are, the faster you cool ....
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lec 5 - GE105 Continents Adrift Continents Adrift 11 Earths...

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