An introduction to nanotechnology the new science of small the great courses 4 gases in the atmosphere


In 1959, renowned physicist Richard Feynman delivered a prophetic talk to colleagues. He pointed out that no law of nature exists that can prevent scientists from manipulating individual atoms and making almost any product imaginable. It was a bold prediction filled with mind-boggling applications ripped straight from the pages of a science fiction novel.

Now, half a century after Feynman’s forecasts, these science fiction conceits are fast becoming scientific fact. And it’s all the result of scientists’ meticulous investigations into the nanoworld—the atomic realm where distances are measured gas kinetic energy formula in billionths of a meter. What we’ve discovered at the nanoscale has sparked an ever-expanding technological revolution—one that will continue to touch nearly every aspect of human life and will fast become a game-changer in many fields, including

Two prominent specialists team up to explore this exciting new electricity deregulation choices and challenges frontier in Introduction to Nanotechnology: The New Science of Small. In 24 accessible and visually rich half-hour lectures, you get an in-depth explanation of nanotechnology and how it is possible to work in a domain that is nine orders of magnitude smaller than humans—comparable to the difference in scale between you and the sun.

The two professors combine for a lecture on their respective research teams, giving a fascinating glimpse of the collaboration between scientists and engineers as they probe and create the nanoworld. Professor Sargent follows with a look at the beautiful and distinctive shapes revealed at the nanoscale, as well as a sustained investigation of developments gas x tablets himalaya that are transforming the way we produce, store, and use energy. The course concludes with each professor giving a lecture on more futuristic examples of nanotechnology, from biologically based nanorobots to smart dust and invisibility cloaks.

If some of the ideas of nanotechnology sound familiar, that is because science fiction has paved the way. The 1966 movie Fantastic Voyage depicted a submarine and crew shrunk to miniature size and then sent on a life-saving mission through the bloodstream of a comatose patient. Similarly, the Star Trek series featured a small-scale technological marvel called the tricorder, which, among its other functions, could diagnose any disease.

Professors Sargent and Kelley tour many of the sights in this now-accessible realm, including the atoms in a superlattice, carbon nanotubes, quantum dots, nanopillars, and other synthetic constructions. But did you know 8 gas laws that medieval stained glass windows are also a nano-phenomenon? Although the artisans a thousand years ago didn’t realize it, the color effects they achieved by grinding finer and finer metal powders for pigments relied on resonance effects at the nanoscale. The same principle underlies plasmonics, a new technique for manipulating light as it bounces between atoms.

Or did you know that the patterns and colors on butterfly wings are another nanoeffect? As you discover in Lecture 23, small changes in nanostructures on the insect’s wings cause light to reflect different colors. And in the same hp gas kushaiguda lecture, you learn how single-celled diatoms are the ultimate nanoengineers, creating beautifully complex and functional shapes. One of the goals of researchers is to use these tiny creatures to build structures with special properties, effectively employing diatoms as on-site workers in the nanoworld.

Nanotechnology is today’s most powerful engine of innovation, turning cutting-edge research into applications at an astonishing rate. Professors Sargent and Kelley are unusually well qualified to describe every step in this process; both have founded successful companies that bring nanotechnology to the marketplace. Both have been named top innovators by the Massachusetts Institute of Technology’s prestigious Technology Review.

As smartphones get smarter, computers get faster, medical care gets better targeted, new materials with surprising properties appear, and the promise of unlimited clean energy seems within reach, the importance of nanotechnology in our lives will only increase. Introduction to Nanotechnology is your unrivaled guide to how we got here and where we’re going. Professors Sargent and Kelley encourage you to be informed and stay tuned. It’s going to be an exciting ride.

Lacking in comprehensiveness. As other reviewers have stated, I had high hopes for this course on such a new and fascinating topic, but the course came up lacking. In general the course seems to be oriented to the specific applications of the electricity meaning 2 presenters rather than providing a comprehensive overview and discussion of the wide range of applications and science of nanotechnology. They tend to white-wash the fundamental concepts in an attempt to devote most of their lecture time discussing their particular corner of research. The organization and progression of the concepts are haphazard and disorganized. There were some definite interesting moments, and opportunities to say wow and gee-whiz, but little time spent on pure understanding of the broader, wide-reaching aspects of this science. Some of the graphics were vague or inappropriate to the related discussion. My over-all impression of this course is that it was not well conceived and organized electricity word search ks2 for a general discussion of the subject, but more of a sales pitch for the lecturer’s research projects.

A fairly good introduction to nonotechnology On the whole, I enjoyed this course and learned a lot. Professor Sargent did more lectures and concentrated on physics of small structures, including computers, digital cameras, sensors and so forth. Professor Kelley took the medical side of nanotechnology. Each told about his or her specialty, of course, leaving me to wonder if anything could have been said about other areas as well.

Having gas mileage comparison a background in physics, I was able to follow Professor Sargent reasonably well. But I have to agree with some other reviews that the presentation was uneven. Some things were explained well, and others not so much. In some later lectures I could listen for ten minutes, and wonder what he was talking about, and why. He often said, We are able to . . . without saying how la gasolina lyrics translation or why. For example, We are able to make these small structures with such and such a shape on such and such a substrate. Okay, are they just doing it to prove they can do it, or is there a point somewhere?

I think Professor Kelley did a better job of making it clear just how something worked, and why. The medical application of nanotechnology was new to me, so maybe that’s why I found her lectures more engaging. And they must have been pretty good, because I just recently saw an article by her in Scientific American about this very subject. As I read I realized that I already knew most everything in the article and even more because I had seen her lectures f gas logo in this course.

There were many visuals. There would have to be in a course like this, because you couldn’t picture these small things without visual helps. Here is where the course could have been improved significantly. There were lots of visuals, most animated. Lots of work went into them. The problem was, often you just couldn’t tell what they were about. There were few labels, and when there was a chart, the axes were not clearly explained. You might see that something was a network of different atoms in some complex arrangement, but there was nothing about why this worked or what was the purpose of all these parts.