background preloader

How Nanotechnology Works"

There's an unprecedented multidisciplinary convergence of scientists dedicated to the study of a world so small, we can't see it -- even with a light microscope. That world is the field of nanotechnology, the realm of atoms and nanostructures. Nanotechnology i­s so new, no one is really sure what will come of it. Even so, predictions range from the ability to reproduce things like diamonds and food to the world being devoured by self-replicating nanorobots. In order to understand the unusual world of nanotechnology, we need to get an idea of the units of measure involved. As small as a nanometer is, it's still large compared to the atomic scale. In a lecture called "Small Wonders:The World of Nanoscience," Nobel Prize winner Dr. In this article, we'll learn about what nanotechnology means today and what the future of nanotechnology may hold. In the next section, we'll learn more about our world on the nanoscale. Related:  Nano Nano

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. The Foresight Institute is focused on this small end of the scale: atomically-precise manufacturing or "molecular manufacturing". Life is the Existence Proof for Atomically Precise Technology Chemistry has of course always worked with atomic precision. Building to Atomic Precision

Small world by Ralph C. Merkle Xerox PARC 3333 Coyote Hill Road Palo Alto, CA 94304 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 4 Important Rare Earth Elements Sir William Crookes, a 19th century British chemist, once wrote that, "rare earth elements perplex us in our researches, baffle us in our speculations and haunt us in our very dreams." These weren't easy elements to isolate or to understand, and so there was a very long lag time between the discovery of the rare earths, and the discovery of practical uses for them. It didn't help that individual rare earth elements don't occur by their lonesome—they travel in packs. To get one, you have to mine all of them. At first, industry didn't even bother to separate out individual rare earths, instead using them in a blended alloy called mischmetal. Europium was the first isolated, high purity rare earth element to enter the public marketplace, in 1967, as a source of the color red in TV sets. At the time, rare earth mining wasn't even a twinkle in China's eye.

Nanotechnology and Nanoscience | Nanowerk Institute of Nanotechnology The content of this web source is aimed at The Biomechanics of Good Running | Playbook AUSTIN, Texas — If you’re a runner and you can’t extend your hip well behind you on your stride, Jay Dicharry has bad news: You’re never going to be a great runner. [bug id="sxsw2012"]This doesn’t mean you should hang up your shoes. You can still run, and run well, but not everyone can attain the ideal stride needed to be a truly great runner. Dicharry is the director of the Speed Performance Clinic and the Motion Analysis Lab Coordinator At The University Of Virginia. In discussing the biomechanics of running here at South by Southwest Interactive he recalled his Louisiana roots to emphasize his point. “I’m from New Orleans, and there’s great food there,” he said, by way of understatement. Most runners don’t extend their hips, Dicharry said. Along with a lack of hip extension, overstriding is one of the biggest sins. “Look at their gait,” he said. Only Andrews maintained textbook form for the whole race, finishing first in 1:44.71, just .01 off the meet record. Third, kneel on one knee.

Electric motor made from a single molecule 5 September 2011Last updated at 08:56 By Jason Palmer Science and technology reporter, BBC News The butyl methyl sulphide molecule whips round an axis defined by its single sulphur atom (blue) Researchers have created the smallest electric motor ever devised. The motor, made from a single molecule just a billionth of a metre across, is reported in Nature Nanotechnology. The minuscule motor could have applications in both nanotechnology and in medicine, where tiny amounts of energy can be put to efficient use. Tiny rotors based on single molecules have been shown before, but this is the first that can be individually driven by an electric current. "People have found before that they can make motors driven by light or by chemical reactions, but the issue there is that you're driving billions of them at a time - every single motor in your beaker," said Charles Sykes, a chemist at Tufts University in Massachusetts, US. Miniature uses

Publications - Cookie absent This site uses cookies to improve performance. If your browser does not accept cookies, you cannot view this site. Setting Your Browser to Accept Cookies There are many reasons why a cookie could not be set correctly. Below are the most common reasons: You have cookies disabled in your browser. Why Does this Site Require Cookies? This site uses cookies to improve performance by remembering that you are logged in when you go from page to page. What Gets Stored in a Cookie? This site stores nothing other than an automatically generated session ID in the cookie; no other information is captured. In general, only the information that you provide, or the choices you make while visiting a web site, can be stored in a cookie.

The nanotechnology education tree provides an Open Source Physics Computational Resources for Teaching The OSP Collection provides curriculum resources that engage students in physics, computation, and computer modeling. Computational physics and computer modeling provide students with new ways to understand, describe, explain, and predict physical phenomena. Browse the OSP simulations or learn more about our tools and curriculum pieces below. Tracker The Tracker tool extends traditional video analysis by enabling users to create particle models based on Newton's laws. Learn more about Tracker Featured Tracker Package Projectile Motion with Angry Birds The Projectile Motion with Angry Birds lab uses the original video from Rovio, the makers of Angry Birds and the Tracker video analysis tool to measure and analyze the motion an angry bird projected from a slingshot to hit a pig. Curriculum Packages OSP curriculum packages combine computer simulations with tutorial materials and student worksheets. Featured Curriculum Package EJS Modeling Learn more about EJS