EESC 1158 Lecture Notes - Partial Nuclear Test Ban Treaty, Kim Jong-Un, Meteor Crater
11 Mar 2014
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Absolute age of the earth = amount of time since the earth solidified. Originally was formed from solid particles of rock that were orbiting solar system (vincitnity of earth"s orbit) and because of gravity chunks of rock material formed a solid body. Radioactivity (elements inside the earth) when they decay it creates heat that gets turned into electrical energy. One should always choose the simplest explanation of a phenomenon, the one that requires the fewest leaps of logic. One should not increase beyond what is necessary, the number of entities required to explain anything. A logical principle attributed to the mediaeval philosopher william of occam. One should not make more assumptions than the minimum needed. Admonishes us to choose from a set of otherwise equivalent models of a given phenomenon the simplest one. Earth"s earliest rocks have been recycled, and we need to look beyond earth to find evidence of when it solidified. South africa 3. 4 billion year old granites.
