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If you would have been driving through the hills of Tennessee about 40 miles south of Nashville on I-65 in the 1990s, you would have come across a very curious exit called the Saturn Parkway. And if you would've taken that exit and gone a little farther, you would've come across something called the Donald Ephlin Parkway. That was the entrance to the Saturn Corporation, one of the boldest, most innovative, new experiments in labor management relations and organizations of the past 30 years. So let's take a look at what Saturn was all about and, unfortunately, why it failed. Well, Saturn started in the 1980s when a number of innovative labor and management leaders said, we've got to adjust the way in which we work. General Motors came to Donald Ephlin, who was the vice president of the auto workers union, and said, we can't build a small car in the United States competitively. We've got to outsource that work. Don, in his innovative way, said, well,...

just informal if you want to be a little bit more formal you can say what well we're not going to bed yet you're saying you're going to die is today is an important day in italy because it's the beginning of carne vale carnevales is carnival i think you are familiar originally italy the celebration of carnival was the celebration of the end of the winter and the beginning of the spring it should be much later here in boston it's not usually february in italy usually middle of february is a good time when it starts to get warmer and it's not spring but it's the beginning so carne vale is carnival it starts today and it will end on tuesday next tuesday tuesday is martini today and we call this specific tuesday means fats yeah it's fat tuesday so why is fat tuesday well because typically we would eat very very fat food and you have some examples here these are some typical sweets that we eat for carnevale they're both deep fried so we'...

And if I keel over and fall down, somebody call the ambulance. OK, what we're going to do today is, this is actually the last lecture on a topic that some might consider part of networking, but some might consider part of a more general topic of distributed systems. So it actually forms a bridge between the stuff we learned about in networking, and what we're going to see from Wednesday over the next six or seven lectures of the class, and of the associated recitations having to do with fault tolerant, reliable computing. And most of the interesting aspects of what we're going to talk about involve techniques in fault tolerance, and more techniques have to do with redundancy and replication. And DNS, the domain name system, which is the system we're going to look at today in the context of distributed naming is a bridge because on the one hand it covers some of the aspects of networking that we talked about. On the other hand, it shows an example of how yo...

If you put water in the freezer, you'll end up with ice. If you leave ice on your countertop, you'll end up with liquid water. You've almost certainly seen these phase changes in your everyday experience. But there's more to freezing and melting than meets the eye, and we can use these seemingly simple phenomena to make buildings significantly more energy efficient. In this video, we'll explain the concept of "latent heat" and see how it can dramatically reduce heating and cooling costs in homes and skyscrapers alike. This video is part of the Conservation video series. In order to analyze or modify a system, it is important to understand how the laws of conservation place constraints on that system. Hi. My name is Stephen Ray and I am a graduate student in the Department of Mechanical Engineering at MIT. My research in the Building Technology Lab under the guidance of Professor Leon Glicksman focuses on energy efficient buildings. In order t...

If you're driving down the highway and want to see how fast you're going, you look down at your speedometer. If you're in a lab and want to see how fast a chemical reaction is going, it's a little more complicated. In this video we'll look at a few factors that influence the speed of chemical reactions. This video is part of the Equilibrium video series. It is often important to determine whether or not a system is at equilibrium, to do this we must understand how a system's equilibrium state is constrained by its boundary and surroundings. Hi, my name is George Zaidan and I'm a graduate of the chemistry department here at MIT. Before watching this video, you should have a basic understanding of chemical equilibrium. After watching this video, you will be able to: Understand how reaction rate is influenced by reactant concentration Explain how reaction rates change as a system establishes equilibrium, AND Predict relative equilibrium concentrat...

[MUSIC PLAYING] PROFESSOR: If you haven't already viewed Distillation Part 1, Simple and Fractional Distillations, then please do so before watching this video. If you have, then you know that simple distillation is an effective technique for purifying liquids, if the liquids boil below about 150 degrees Celsius. If you have to purify a higher-boiling liquid, however, then you must perform a distillation under vacuum. The third type of distillation is a vacuum distillation. This technique must be used if the liquid boils above about 150 degrees Celsius, where it is likely to decompose. As you know, the boiling point of a liquid occurs when it's vapor pressure is equal to the external pressure. If a system is under vacuum, it has a reduced pressure and the liquid is able to boil at a lower temperature. To set up the apparatus for the vacuum distillation, insert a Claisen adapter between the distillation flask and head. Liquids often boil violently under reduced pre...

PROFESSOR: If you tell someone solve this equation for l equals zero-- so you have this effective potential for the real equation-- solve it for l equals zero and you find some energies. You solve it for l equals 1, and you've found some energies. You solve it now for l equals two and you found some energies. Well, we found them all together, but something extraordinary happened there was no a priori reason the system should have been so simple. It might have happened that these states would have not been aligned with the previous states. Nothing we've explained in this course predicts that this would have happened, this perfect alignment with extreme amount of degeneracy. Because you have an l equals 2 multiplet here. That means five states. So there is degeneracy, but that's implicit in angular momentum. It has an explanation. But why would there be a degeneracy between l equals 1 solutions and l equals 2 solutions? Total mystery, actually. And this led to a...

PROFESSOR: Hi. Well, if you're ready, this will be the other big side of calculus. We still have two functions, as before. Let me call them the height and the slope: y of x and the slope, s of x. Function one and function two. That's what calculus is about. And earlier, we figured out how to go from function one if we knew that, how to find the slope. Of course, it was easy when function one was just a straight line. Then the slope was just up divided by across. But when function one was curving, we had to do something. We had to take just a small distance across, a small distance up and divide, and then let small get smaller and smaller. The result of that was function two, the derivative. Today, we're going the other way. We know the slope. We know s of x, and we want to find the height, y of x, of the graph. We know how the graph is sloping at every point, and we have to put all that information together to find its height. OK. Let me say the easiest way to...