12/28/2011

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In This Article Deals With An Experiment To Implement Electronic Recently, interest in electronic books show not only the fans to read, but officials and educators. The fact that these devices are connected to the hopes of improving the quality of teaching - is completely natural. If the student or the student had had to periodically look into the online bookstore and keep on hand is almost an entire library, then, with e-book, he will be able to buy textbooks in electronic form. A small mobile device will give the possibility to store all the materials to prepare for the exam in one place will forever refuse bags with heavy volume, will replace the books on psychology, as well as other subjects. E-book will be useful to teachers. They do their job as effective and less labor-intensive, will be able to easily organize by the job scheduling will be able to devote far less time on preparation of visual aids. However, while all these pluses a beautiful theory. In practice, it turns out that store books will not lose their customers, at least over the next few years. This conclusion researchers have done Darden Business School, organized by the University of Virginia. A year ago, the school signed a contract with a famous online store Amazon, providing testing e-book Kindle DX in teaching students. All lesson plans and textbooks have been translated into electronic form, after which the books were given 62 students and 10 teachers of the business school. The results were, to put it mildly - discouraging. Although the teachers acknowledged that using mobile technology...
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Ceramics More recently, one of the three largest Italian manufacturers of cookware with nonstick MONETA company has developed and released a new series of tableware Moneta Ceramica. Ordinary non-stick coating, to which we are all used, contains at its core Teflon. Teflon or politetrafluoroetilen (PTFE) is similar to the plastic material, which is used in almost every known 'not sticky' coatings are used today in the kitchen, only different number. The chemical structure of PTFE has a very complicated structure. Teflon is made up of many toxic substances that enter the food and air from the heated pan. The more often the Teflon frying pan heated to high temperature, the faster coverage starts cracking due to which small particles and volatiles into the air. In addition, during operation, usually within 2 years of use, wash utensils with Teflon hands or in the dishwasher, this process has only intensified. The company decided to develop a new Moneta non-stick coating does not contain Teflon, and produced without damage to the environment. Thanks to what appeared covering Ceramica. Superb non-stick properties were achieved by applying a ceramic coating on the basis of aluminum using nanotechnology. A layer of ceramic coating is a completely smooth monolithic coverage without any time on properties close to the glass. The main difference, resistant properties and excellent resistance to sudden temperature changes. These properties of ceramics are used as space industry in the manufacture of the outer covering of space shuttles. In Ceramica coating does not add any coloring, which explains why it is not quite...

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