Mass Spectrometers
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Using acid-base titration to find mass of oxalic acid.
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Another exercise converting a mass composition to an empirical formula.
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This course explores the physical processes that control Earth's atmosphere, ocean, and climate. Quantitative methods for constructing mass and energy budgets. Topics include clouds, rain, severe storms, regional climate, the ozone layer, air pollution, ocean currents and productivity, the seasons, El Niño, the history of Earth's climate, global warming, energy, and water resources.
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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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The war saw a transformation of politics at both elite and popular level. This led to the Liberals being replaced by Labour as the main party of the Left. The last purely Liberal government came to an end in 1915. The inter-war leaders, Stanley Baldwin and Ramsay MacDonald, sought to continue the mission of liberalism by civilizing the state. Yet Britain's industrial structure remained geared to the past rather than the future, and ...more
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Introduction to the center of mass.
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Momentum and its conservation during collisions is introduced. Kinetic energy can decrease or increase during collisions. When kinetic energy is conserved, we call it an elastic collision. The momentum vector, internal forces, external forces and the conservation of momentum are discussed. Professor Lewin does some air track experiments where the released energy is from a compressed spring; kinetic energy increases but momentum is conserve...more
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Systemic risks of credit default swaps. Financial weapons of mass destruction.
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Doppler Effect, Binary Stars, Neutron Stars and Black Holes. Doppler shift is introduced with sound waves, then extended to electromagnetic waves (radiation). The Doppler shift of stellar spectral lines and/or pulsar frequencies provides a measure of the line-of-sight (so-called radial) velocity of the source relative to the observer. Combined with Newton's law of universal gravitation, this can lead to the orbital parameters and the mass ...more
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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.
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Early Modern England: Politics, Religion, and Society under the Tudors and Stuarts (HIST 251)Professor Wrightson begins by assessing the state of education in the late medieval period and then discusses the two cultural forces (Renaissance humanism and the Reformation) which lay behind the educational expansion of the sixteenth and seventeenth centuries. While there were distinct hierarchies of learning in the period (with women and the lo...more
