Quantum World
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Lecture 1 of Leonard Susskind's Modern Physics course concentrating on Quantum Mechanics. Recorded January 14, 2008 at Stanford University.
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Lecture 2 of Leonard Susskind's Modern Physics course concentrating on Quantum Mechanics. Recorded January 21, 2008 at Stanford University.
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The boom in European colonial expansion in the second half of the nineteenth century, the so-called New Imperialism, can be seen to follow from three principle factors, in ascending order of importance: religious proselytizing, profit, and inter-imperial political strategy. With respect to the latter concern, the conflicts emerging from imperialism set the stage for World War I. Along with its military and industrial consequences, imperial...more
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By 1950, in most of the underdeveloped world, mortality had fallen to about half its pre-modern rate. The birth rate, however, had remained high and, by 1950, was about twice the death rate. For the rest of the century, both rates fell dramatically and in parallel, maintaining the gap. The enormous excess of births over deaths in this period is known as 'the population explosion.' By 1990, the world population was growing at almost 90 mill...more
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Census data is often politically influenced and hence inaccurate. The birthrate in developing countries is nearly twice that in developed countries. Most humans live in less developed countries, so the world birthrate is near the higher number. The world birthrate is two and a half times the death rate; we are not close to population stabilization. Almost everywhere, the death rate has been drastically reduced; further changes will not mas...more
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Guy Kawasaki, founder and Managing Director of Garage Technology Ventures, believes that those companies who set out to make a positive change in the world are the companies that will ultimately be the most successful. He gives examples of the best way to make meaning: increase quality of life, right a wrong, and prevent the end of something good.
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In this lecture, Professor Donald Kagan tells the story of the emergence of the polis from the Dark Ages. He shows that by the time of the poet Hesiod, there is already a polis in place. He describes the importance of the polis in the Greek world and explains that it was much more than a mere place of habitation; it was a place where there was justice, law, community, and a set of cultural values that held Greeks together. Finally, Pro...more
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The case for low-carbohydrate diets is gaining weight. Christopher Gardner, PhD, assistant professor of medicine at the Stanford Prevention Research Center, has completed the largest and longest-ever comparison of four popular diets using real-world conditions, which he discusses - the lowest-carbohydrate Atkins diet came out on top.
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A Northern World View: Yankee Society, Antislavery Ideology, and the Abolition Movement
Yale / History
Having finished with slavery and the pro-slavery argument, Professor Blight heads North today. The majority of the lecture deals with the rise of the Market Revolution in the North, in the 1820s, 1830s, and 1840s. Blight first describes the causes of the Market Revolution--the rise of capital, a transportation revolution--and then moves to its effects on the culture and consciousness of antebellum northerners. Among these effects were a ri...more
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We introduce Game Theory by playing a game. We organize the game into players, their strategies, and their goals or payoffs; and we learn that we should decide what our goals are before we make choices. With some plausible payoffs, our game is a prisoners' dilemma. We learn that we should never choose a dominated strategy; but that rational play by rational players can lead to bad outcomes. We discuss some prisoners' dilemmas in the real w...more
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This lecture is devoted to the electron diffraction experiment of 1927, where the wavelike nature of electron beams was experimentally established, thus supporting an underlying principle of quantum mechanics. Professor Sylvia Ceyer discusses how to calculate λ from θ, de Broglie wavelength, and concludes with Schrodinger's equation of motion for matter waves.
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Professor Bloom provides an introduction to psychological theories of morality. Students will learn how research in psychology has helped answer some of the most central questions about human morality. For instance, which emotions are "moral" and why did these moral feelings evolve? What factors guide our moral judgments? And what factors predict when good people will do bad things?
