dimensional analysis
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Continuing the examination of molecular orbital theory as a predictor of chemical reactivity, this lecture focuses on the close analogy among seemingly disparate organic chemistry reactions: acid-base, SN2 substitution, and E2 elimination. All these reactions involve breaking existing bonds where LUMOs have antibonding nodes while new bonds are being formed. The three-stage oxidation of ammonia by elemental chlorine is analyzed in the same...more
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The Industrial Revolution was for a long time treated as a decisive break in which some countries, specifically England, innovated and progressed rapidly while others were left behind. This type of analysis leads many historians to overlook the more gradual process of industrialization in countries like France, and the persistence of older methods of artisanal production alongside new forms of mechanization. To understand the Industrial Re...more
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This lecture picks off where the previous one left off, with a discussion of the legacies of John Brown. The most important thing about John Brown's raid, Professor Blight argues, was not the event itself, but the way Americans engaged with it after the fact. Next, Professor Blight discusses the election of 1860, a four-way battle won by the Republican candidate, Abraham Lincoln. In the wake of Lincoln's election, the seven states of the d...more
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The most prominent chemist in the generation following Lavoisier was Berzelius in Sweden. Together with Gay-Lussac in Paris and Davy in London, he discovered new elements, and improved atomic weights and combustion analysis for organic compounds. Invention of electrolysis led not only to new elements but also to the theory of dualism, with elements being held together by electrostatic attraction. Wöhler's report on the synthesis of urea re...more
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February 11, 2009 lecture by Jefferson Tester for the Woods Energy Seminar (ENERGY301). In his talk "A Pathway for Widespread Utilization of Geothermal Energy--the Roles of Multi-scale Resource and Technology Research and Systems Analysis," Tester talks about the benefits and challenges of harnessing geothermal energy, and he asserts that it is a large resource that complements solar and wind energy and is both carbon free and scalable.
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Earl talks about how the majority of the products at EA are sequels that are released every year. The main decision for EA on these projects is budgeting how many people to work on each every year, he says. Occasionally, there is a new product idea. This idea must pass a lot of market opportunity analysis before it is launched because it is very expensive and risky to build a new product. Still, new products are seen as a critical part ...more
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The discussion of Gadamer and Hirsch continues in this lecture, which further examines the relationship between reading and interpretation. Through a comparative analysis of these theorists, Professor Paul Fry explores the difference between meaning and significance, the relationship between understanding and paraphrasing, and the nature of the gap between the reader and the text. Through Wolfgang Iser's essay, "The Reading Process," the n...more
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February 18, 2009 lecture by Brent Constanz for the Woods Energy Seminar (ENERGY301). In his talk "A Pathway for Widespread Utilization of Geothermal Energy--the Roles of Multi-scale Resource and Technology Research and Systems Analysis," Brent Constanz states that concrete is the most used product worldwide next to water and he suggests that we could safely, cheaply, and quickly store carbon dioxide in concrete at the rate of about six bi...more
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Dell describes three critical inflection points in the business model of Dell, Inc.: 1) During the early stages of the company, expanding outside the United States, even though the company had very little capital and people; 2) An unprecedented on-site service program for PCs; and 3) Going into the server business. These decisions were made through fair amounts of discussion, data analysis, and observations of industry trends.
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In this final lecture on literary theory, Professor Paul Fry revisits the relationship between language and speech, language and intention, and language and communication. Over the course of this discussion, he retrospectively defines theory as a means of establishing the extent to which "it is legitimate to be suspicious of communication." Along the way, he reconnects with New Criticism, Jakobson, Bakhtin, Saussure, de Man, Fish, and Knap...more
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The Industrial Revolution in France is often said to have been entirely overshadowed by British industrial development. This analysis is inaccurate because it ignores the significance of domestic and other non-factory occupations. Indeed, it was the class of artisan workers, rather than industrial factory workers, who were first responsible for the organization of labor movements. One of the great innovations of the factory was the imposit...more
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Bayesian Statistics and Regularization, Online Learning, Advice for Applying Machine Learning Algorithms, Debugging/fixing Learning Algorithms, Diagnostics for Bias & Variance, Optimization Algorithm Diagnostics, Diagnostic Example - Autonomous Helicopter, Error Analysis, Getting Started on a Learning Problem
