Earth Sciences 1022A/B Lecture Notes - Lecture 1: Geosphere, Hydrosphere, Infinite Mass
12 Dec 2018
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Document Summary
If anything happens to one subsystems, the other subsystems will react to it. Importance of equation: energy can produce matter (and vice versa) Formation of first stars and galaxies: stars and galaxies condensed out of the matter produced by the big bang and continued to move away from the initial singularity (sort of a point of explosion). Supernova: redistribution of elements: these stars exploded (as supernovae), splattering elements into space. Later stars formed from the material of these exploded stars, producing yet heavier elements: our sun is thought to be a 3rd-generation star (formed after at least two supernova events) Earliest earth: time of heavy bombardment: the early solar system was an extremely violent place, protoplanets (that would ultimately become planets we know today) were constantly impacted by the solid bodies that were still adding to their volume. Jovians planets have thicker atmospheres, they"ve retained their original atmosphere.
