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This lecture focuses on the role of white southern terrorist violence in brining about the end of Reconstruction. Professor Blight begins with an account the Colfax Massacre. Colfax, Louisiana was the sight of the largest mass murder in U.S. history, when a white mob killed dozens of African Americans in the April of 1873. Two Supreme Court decisions would do in the judicial realm what the Colfax Massacre had done in the political. On the ...more
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Google has proven that if you build it, they will come, and their mass of tools to keep users logged in has been the crux of their success. Vice President of Search Products & User Experience Marissa Mayer elaborates on this strategy, pointing out that money - and advertisers - will always follow consumers. Focus on building sticky media that draws in a wide audience, and the method to its monetization will follow.
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Frank Levinson's Top 10 Things You Must Have to Start a Business. These include: 1) Spending everything on a good team and equipment 2) Letting people know the company is in business 3) Raising limited capital 4) Taking stock of a company and determining its needs 5) Being open to opportunities 6) Having a supportive family 7) Targeting mass markets, not just niche markets 8) Having confidence in new ideas 9) Acquiring an...more
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Concepts covered in this lecture begin with the restoring force of a spring (Hooke's Law) which leads to an equation of motion that is characteristic of a simple harmonic oscillator (SHO). Using the small angle approximation, a similar expression is reached for a pendulum. To demonstrate that the period is independent of the mass of the bob, Professor Lewin places himself at the end of the 5 meter long cable and measures the period.
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In this introductory lecture, Professor Lewin discuses basic units, dimensions, measurements and associated uncertainties, dimensional analysis, and scaling arguments. Further, he explains why a measurement is meaningless without knowledge of its uncertainty, using data collected by Galileo Galilei as an example. He begins to dive into dimensional analysis, reasoning that the time from an object to fall from a certain height is independen...more
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As a result of World War I, Europe had a different understanding of war in the twentieth century than the United States. One of the most important ways in which the First World War was experienced on the continent and in Britain was through commemoration. By means of both mass-media technologies and older memorial forms, sites of memory offered opportunities for personal as well as political reconciliation with the unprecedented consequenc...more
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The history of socialism in France can be understood in terms of the competition between revolutionary socialists and reform socialists. The former advocated abandoning electoral politics, while the latter attempted to improve conditions for workers by means of reforms within the political system. These two attitudes found figureheads in Jules Guesdes and Paul Brousse, respectively. Reform socialists and revolutionary socialists are united...more
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In this lecture Professor Lewin covers elastic and inelastic collisions, including a discussion on center of mass and internal inergy. He concludes with a Newton's Cradle demonstration, soliciting an analytical proof of his demo showing a lineup of colliding balls.
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How can we harness the emerging forms of interactive media to enhance the learning process? Professor Miyagawa and prominent guest speakers will explore a broad range of issues on new media and learning - technical, social, and business. Concrete examples of use of media will be presented as case studies. One major theme, though not the only one, is that today's youth, influenced by video games and other emerging interactive media forms, a...more
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The discussion of four-vector in relativity continues but this time the focus is on the energy-momentum of a particle. The invariance of the energy-momentum four-vector is due to the fact that rest mass of a particle is invariant under coordinate transformations.
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The dynamics of a many-body system is examined. Through a variety of examples, the professor demonstrates how to locate the center of mass and how to evaluate it for a number of objects. Finally, the Law of Conservation of Momentum is introduced and discussed. The lecture ends with problems of collision in one dimension focusing on the totally elastic and totally inelastic cases.
