Institute of Nanotechnology 45 Free Online Computer Science Courses Missed lectures or hate teachers? Or want to study computer science courses without going to university? … You can study anytime anywhere because there are number of free online computer science courses available on internet that are very interactive. Here is the list of 45 free online computer science courses that are designed by teaching experts from best universities of the world (almost the whole graduation!). 1. Complete set of course materials. 2. This course is the natural successor to Programming Methodology and covers such advanced programming topics as recursion, algorithmic analysis, and data abstraction using the C++ programming language, which is similar to both C and Java. 3. Advanced memory management features of C and C++; the differences between imperative and object-oriented paradigms. 4. The purpose of this course is to introduce you to basics of modeling, design, planning, and control of robot systems. 5. 6. 7. 8. 9. 10. Continuation of Convex Optimization I. 11. 12.
Small world by Ralph C. Merkle Xerox PARC 3333 Coyote Hill Road Palo Alto, CA 94304 merkle@xerox.com This is an extended web version of the article published in the Feb/Mar 1997 issue of MIT Technology Review. This version has greater technical detail and embedded links. Introduction Manufactured products are made from atoms. Since we first made stone tools and flint knives we have been arranging atoms in great thundering statistical heards by casting, milling, grinding, chipping and the like. That's changing. Build products with almost every atom in the right place. One warning: in contrast to the useage in this article some researchers use the word "nanotechnology" to refer to high resolution lithographic technology while others use it to refer to almost any research where some critical size is less than a micron (1,000 nanometers). There are two main issues in nanotechnology: What might molecular manufacturing systems look like? The advantages ofnanotechnology The advantages of positional control
This article discusses the extensive range of 11 Predictions for the World in 2030 That May Sound Outrageous Today but not in the Future. - I Look Forward To All futurism is speculation. It's time someone made some claims. I've picked developments I honestly consider plausible. Here are my 11 predictions for the world of 2030. I'm backing these claims up with previous writings. Alright, crystal ball time: 1. A tiny computer that fits in your ear, and translates what you hear into your own language? 2. Aubrey de Grey says: I think we have a 50% chance of achieving medicine capable of getting people to 200 in the decade 2030-2040. 3. The eradication of extreme poverty will happen in our lifetime. 4. Soil-based agriculture is so passé. 5. I'm sure you've dreamed it: Getting into a car, kicking your shoes off and leaning back with a good movie and a cold beer while your self-driven car takes you safely to your destination, without your having to worry about directions or pedestrians. 6. I actually think this is a conservative estimate. 7. Probably a lot sooner, actually. 8. 9. 10. 11.
PHYS771 Lecture 9: Quantum PHYS771 Lecture 9: Quantum Scott Aaronson There are two ways to teach quantum mechanics. The first way -- which for most physicists today is still the only way -- follows the historical order in which the ideas were discovered. Today, in the quantum information age, the fact that all the physicists had to learn quantum this way seems increasingly humorous. As a direct result of this "QWERTY" approach to explaining quantum mechanics - which you can see reflected in almost every popular book and article, down to the present -- the subject acquired an undeserved reputation for being hard. The second way to teach quantum mechanics leaves a blow-by-blow account of its discovery to the historians, and instead starts directly from the conceptual core -- namely, a certain generalization of probability theory to allow minus signs. So, what is quantum mechanics? Ray Laflamme: That's very much a computer-science point of view. Scott: Yes, it is. A Less Than 0% Chance (p1,....,pN), . Mixed States ? .
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Overview of Nanotechnology Nanotechnology draws its name from the prefix "nano". A nanometer is one-billionth of a meter—a distance equal to two to twenty atoms (depending on what type of atom) laid down next to each other. Nanotechnology refers to manipulating the structure of matter on a length scale of some small number of nanometers, interpreted by different people at different times as meaning anything from 0.1 nm (controlling the arrangement of individual atoms) to 100 nm or more (anything smaller than microtechnology). At the small end of this scale, the structure is controlled to atomic precision—each atom is exactly where it should be for the optimum function of the material or the device. Life is the Existence Proof for Atomically Precise Technology Chemistry has of course always worked with atomic precision. In biology, macromolecules self-assemble into the systems of molecular machines that cells and organisms comprise. Building to Atomic Precision Progress in Nanoscale Science and Technology
'Fabbers' could launch a revolution Lindsay France/University Photography Hod Lipson, assistant professor of mechanical and aerospace engineering, right, and engineering graduate student Evan Malone work with a Fab@Home machine in the Computational Synthesis Lab in Upson Hall Feb. 22. On the stage is a Lego tire duplicated by the Fab@Home. The Altair 8800, introduced in the early 1970s, was the first computer you could build at home from a kit. It was crude, didn't do much, but many historians would say that it launched the desktop computer revolution. Hod Lipson, Cornell assistant professor of mechanical and aerospace engineering, thinks a little machine he calls a Fab@Home may have the same impact. Some day, Lipson believes, every home will have a "fabber," a machine that replicates objects from plans supplied by a computer. Such machines could evolve from the 3-D printers currently used by industrial engineers for "rapid prototyping." Lindsay France/U. "Fabbing" a Lego tire. Provided The Lego tire on the vehicle.
News ::: Columbia Engineers Prove Graphene is Strongest Material July 21, 2008 Columbia Engineers Prove Graphene is the Strongest Material Research scientists at Columbia University’s Fu Foundation School of Engineering and Applied Science have achieved a breakthrough by proving that the carbon material graphene is the strongest material ever measured. Graphene holds great promise for the development of nano-scale devices and equipment. It consists of a single layer of graphite atoms arranged in a hexagonal lattice, similar to a honeycomb. As a two-dimensional material, every atom is exposed to the surface. Until now, graphene’s estimated strength, elasticity and breaking point were based on complex computer modeling theories. “Our team sidestepped the size issue by creating samples small enough to be defect-free,” said Columbia Professor Jeffrey Kysar. The studies were conducted by postdoctoral researcher Changgu Lee and graduate student Xiaoding Wei, in the research groups of mechanical engineering professors Kysar and James Hone.
The content of this web source is aimed at Tiny buckyballs squeeze hydrogen like giant Jupiter (3/21/2008) Carbon cages can hold super-dense volumes of nearly metallic hydrogen Hydrogen could be a clean, abundant energy source, but it's difficult to store in bulk. In new research, materials scientists at Rice University have made the surprising discovery that tiny carbon capsules called buckyballs are so strong they can hold volumes of hydrogen nearly as dense as those at the center of Jupiter. The research appears on the March 2008 cover of the American Chemical Society's journal Nano Letters. "Based on our calculations, it appears that some buckyballs are capable of holding volumes of hydrogen so dense as to be almost metallic," said lead researcher Boris Yakobson, professor of mechanical engineering and materials science at Rice. The Department of Energy has devoted more than $1 billion to developing technologies for hydrogen-powered automobiles, including technologies to cost-effectively store hydrogen for use in cars. Comments: Leave a Reply: