Complete Review of the Latest and Newest Technology and Gadget

Opera 15 web browser is an attractive, fast and simple, and has interesting features

The Opera web browser is one of the oldest in the world and has long been one of the most popular browsers on mobile phones, to the popularization of smartphones.

The fact is that despite the years that Opera has been competing against Internet Explorer, Firefox, Safari or Chrome (formerly with Mozilla and other browsers that few have passed away in recent years) Opera Software, the Norwegian company that develops the Opera browser, do not throw in the towel.

Quite the contrary. Opera web browser is defined as the alternative for those who want a better browser. And this new version of Opera, numbered 15, is intended for those who want a web browser especially lighter and simpler, with a clear and clean interface.

Opera 15 vs. Opera 12
Somehow, and at least for now, Opera 15 is a parallel version to the latest version of Opera 12 which is still available. It could be considered a simplified version of this. In fact this has caused confusion and anger in equal parts among the stalwarts of this web browser. On the one hand Opera 15 lacks many features of Opera 12 (starting with the favorites) and secondly renames some functions like Opera Turbo (in Opera 12) called Terrain Mode in Opera 15.

Opera 15 is based on Chromium, open source
Curiously Opera version is based on Chromium, the open source web browser which is also based on Google's Chrome Web browser, thus dispensing with proprietary technology used in previous versions.

Key features of Opera 15
Opera 15 debuts Discover function, which lets you start navigating suggesting content and related pages a dozen themes (cars, lifestyle, fashion, news, technology, sports ...) that can be filtered according to the tastes and preferences of each.

These contents can further suggested the language or languages ​​chosen and / or countries of publications. It is possible, for example, choose sports news sites published in Spain. However it is not possible to mix sources in different languages, but the language "Global" collects news from around the world.

It also ignores the search box and combine this with the address bar, although Opera 12, as in other web browsers, you can search directly in the address bar. In Opera 15 to start the search used the search engine (Google, Yahoo, Amazon and Wikipedia, among others) can be changed quickly by pressing the corresponding icon appears next to the list of suggested search terms.

New Opera 15 is the 'shelf', an attempt to reinvent the Opera bookmarks or favorites, and incidentally to combat the problem that potentially poses countless tabs open in the browser. In this way you may be leaving Opera pages that interest on the shelf to read later, similar to how it works but the markers to another approach.

An interesting and is well resolved to adjust the size of the thumbnails to see the contents of the shelf as a list or as thumbnails of pages (and even complete windows) so that it is easier to re-locate.

From the bookshelf is possible to pass a saved page to the list of Quick Access pages, a "speed dial" to get to the most commonly used pages. Pages on the Quick Access on Opera 15 can organize folders (grouping different links in one quick score), which would be interesting to do well on the shelf to organize thematically open links, but that is not possible.

As in previous versions of Opera, the browser has a function for compressing pages receiving the browser, which theoretically speeds up browsing. Is spatially useful in situations where you use a slow connection or data traffic mobile Internet. With this function all Internet browsing is done through Opera's servers, which compress the pages so that the transfer to the user's computer 'even' less. The function is called Terrain mode, which in other versions of this browser is called Opera Turbo.

Compatible with Chrome extensions
The fact that Opera now use Chromium as a web browser based means it is compatible with the extensions developed for Chrome web browser. But it also means that Opera 15 does not support the extensions that existed for previous versions of Opera.

Absences in Opera 15
In addition to the aforementioned absence of the favorites in format "classic" Opera 15 lacks support to read, view or manage RSS feeds of websites that use this channel to send the new content as they are published.

Opera also has support for Adobe Flash if it is not installed on the user's computer. This is common in other web browsers except Chrome, which is capable of playing Flash content even though it is not installed on your computer. But in the case of Opera 15 the problem is that neither can see no force or run the HTML5 alternative that is what happens for example using the Safari web browser on Mac computers, iPhone and iPad, without Flash.

Although Opera 15 is a version devoid of many functions common Opera and other browsers, its main attraction is its speed, which can be seen from the moment you press the icon to open it-and its appearance, clean and devoid of features superfluous for most of the users. Opera 15 web browser is probably the most simple and lightweight and easy to use there now, which may appeal to many people.

Researchers create a lens with zoom

A group of researchers has created the first concept of telescopic lens with a 2.8x zoom and a design that allows carry for day to day. Moreover, the carrier of these lenses have the option indistitintamente combine the traditional and enhanced.

These contact lenses consist of two distinct regions, a central region which allows the passage of light naturally while the edge acts like a telescope providing image magnification x 2.8-equivalent to a 100mm lens of a DSLR camera, .

The main thrust of this research is that it has got a very thin, 1.17 mm thick, allowing wear contact lenses comfortably. Previous similar experiment consisted of thicknesses of 4.4 mm making it impossible to use them everyday having to be implanted in the eye for surgery.

This original invention, conducted by Joseph Ford of UCSD and Eric Tremblay of EPFL, has a complex system of aluminum mirrors are what allow zoom in 2.8 times, without losing any quality.
Furthermore, as recorded by the blog Engadget, with these lenses would be possible to change the view mode through a polarizing filter, with which you can choose to view the image normal or increased, as occurs with active 3D glasses.

The evolution of the computer mouse, the legacy of Doug Engelbart

Douglas Engelbart, inventor of the computer mouse and a pioneer in the development of electronic mail, word processing and the Internet, died on Tuesday at his home in Atherton (California) at age 88. As a legacy to leave power radically changed the way we interact with computers. Today, where the recognition as Google Voice Now or Siri have expanded the functions of control over the machines, we recall the evolution that has taken the mouse over its history.

It was designed by Douglas Engelbart and Bill Inglés, according to several sources, in 1964, at the Stanford Research Institute, part of the University of Stanford. The company took over Xerox improvement in their labs in Palo Alto where he was awarded a new look.

The first prototype was built by hand. Construidido was wood and was patented under the name of "XY Position Indicator for a Display System". Viewed from the perspective afforded by time, this first mouse has an almost prehistoric, archaic, but its basic functions are still intact today.

He had a square design, as if it were a cobblestone, and it had two metal wheels, to move across a surface, moving two axes (horizontal movement and vertical). Popularly called it "bug".

Internet users can operate a telescope of the Observatorio del Teide

The project Gloria (Global Robotic Intelligent Array for e-sience) has opened its first access to its 17 robotic telescopes: the Hubble Solar Open Disclosure (TADs), located at the Observatorio del Teide, the Canary Islands Astrophysics Institute (IAC).

Thus, any user can operate from home with an Internet connection different telescopes on four continents, creating new experiments and follow live astronomical events like the aurora from Greenland or next total solar eclipse in Kenya.

Users only need to open an account on the network's website and make a reservation Gloria for robotic telescope teleoperate TADs. To do this, have the help of a manual and teaching resources that have different copyleft licenses, which allow free distribution of content.

Gloria is a citizen science project which aims to research in astronomy leveraging the collective intelligence of the community, explained the project manager at the IAC, Miguel Serra-Ricart.

To this end, it will give the opportunity to collaborate with all Internet, which can contribute to the calculation of solar activity by images of the solar surface (photosphere obtained with the telescope TADs and further analysis. "

In the immediate future, said Serra-Ricart, more experiments will be incorporated astronomical character and within topics, such as the detection and / or characterization of asteroids or NEOS, acronym for Near Earth Objects, near-Earth objects.

THIRTEEN MEMBERS OF EIGHT COUNTRIES

The initiative involves thirteen partners from eight different countries that have a total of 17 robotic telescopes with presence in four continents: Africa, Europe, Asia and America. Indeed, one of the objectives of Glory is the incorporation of other robotic telescopes belonging to individuals or public or private entities.

In this sense, the collaboration between Gloria and Cesar project, which aims to integrate four telescopes in the network for teaching that the European Space Agency (ESA) currently being installed in Spain through the ESAC, the European Centre Space Astronomy, located in Villanueva de la Cañada, Madrid.

Users can participate in the project Gloria also new telescopes connecting to the network, creating new experiments and participating in outreach astronomical.

One of the aims of the project is to create a network to share robotic telescopes and owners can share observation time from different locations. Moreover, we have developed a web tool that allows any participant to create their own experiments using network telescopes and associated instrumentation Gloria.

ACTIVITIES WITH CHILDREN

From Gloria also organized activities to spark interest in astronomy in the community, especially children. From the relay events are organized outreach activities especially schools.

"Periodically we move to those parts of the world where large astronomical events and conduct a live broadcast over the Internet, as in the case of the last total solar eclipse in Australia, the recent passage of the asteroid 2012-DA14, the next total solar eclipse in Kenya, through the beauty of the aurora in Greenland last August, "explains project coordinator and professor of the Polytechnic University of Madrid, Francisco Sanchez.

Gloria is a three year project funded by the Seventh Framework Programme of the European Union (FP7/2007-2012), with a total budget of 2.5 million euros. The project began in October 2011 and opened to the public network was scheduled to half of his life.

NVIDIA Shield, confirmed for release on June 27


A little less than a week to go on sale, we will discuss the features of NVIDIA Shield , a tablet to play games with Android technology.

NVIDIA Shield is a handheld console, as I mentioned, could also be classified as a tablet dedicated mainly to play with various applications available on Google Play, as mentioned in the previous paragraph ..

In early 2013 we talk about NVIDIA Project Shield , as the presentation of this equipment was made ​​during the CES technology fair this year, it was not until recently where it really gave the green light to the project and confirmed his next arrival in stores .

Features NVIDIA Shield, handheld.

5-inch screen with 720p resolution.
2GB of RAM.
16GB of storage memory.
Quad-core processor ARM Cortex-A15 NVIDIA.
Android Jelly Bean OS.
HDMI port.
Originally it was said that the price of NVIDIA Shield would be $ 350, but it was this same weekend when it was confirmed that being new to the market, will have a discount of $ 50, now costing about $ 300 (or less than 250 euros).

Since May there have been placing orders for NVIDIA Shield, and it is said that the reason why the price is lower now been faced with complaints from consumers who believe it is too soon for a rookie so expensive console: no knows how long the promotion will last to save the $ 50, but maybe by the time help your more competitive price among other consoles and tablets available.

The map of the vegetation on the land surface


NASA has presented a detailed vegetation mapping of our planet through images made ​​with data collected by the satellite Suomi NPP for one year. Suomi NPP (acronym for 'National Polar-orbiting Partnership ") is a joint mission between NASA and the National Oceanic and Atmospheric Administration (NOAA) of the United States.

The images show the difference between green and arid areas of the Earth as seen in the radiometer data for visible-infrared images VIIRS instrument aboard the satellite. VIIRS detects changes in the reflection of light, producing images that measure changes in vegetation over time.

Vegetation data Suomi NPP will join many products and services, including environmental monitoring and impact of droughts.

These vegetation index measures monitor the plant growth, vegetation cover and biomass production from satellite information. Is calculated from the visible and near-infrared light reflected by the vegetation. Higher values ​​represent a dense and green vegetation. Lower values ​​represent sparse vegetation under stress conditions such as drought.

VIIRS measurements are some of the data records collected by several NASA satellites such as Terra and Aqua, in orbit since December 1999 and February 2002, respectively.

The Amazon Kindle finally in physical stores


The ultimate e-reader, Kindle giant American multinational Amazo n finally can acquire in-situ in supermarkets. Until recently any branded device could only be purchased through the website and no way to see or book it in any physical store Spanish.

Before Christmas, the Americans reached an agreement with Worten electronics chain enabling them to market their Kindle 4 and recently that agreement has been extended to other centers such as Auchan and Darty including and new devices like the Paperwhite and Kindle Fire tablet and Fire HD ..

In this way, it aims to expand the market and reach a mass audience that tends to compare online and prefer to see and touch before buying an electronics company since Amazon launched its Spanish website in September 2010, sales of the kindle 4 and Kindle accessories and cases in our country have been spectacular.

The company has realized that the Spanish market had incredible growth potential as e-readers but did not have a broad level of penetration, with the arrival of the Kindle had been shown to potential buyers, not just Amazon but many other companies as Fnac, the House of Books etc. .. have taken their own e-reader models to meet this growing demand.

But Amazon has not only expanded its market in e-readers, part of its strategy is also corner the tablet segment. Your Fire tablets have also been put up for sale recently in our country have come up with a competitive price and hope to compete with the iPad and Nexus 7 and 10, Google and Samsung Tab mainly.

For now, Amazon still has the online exclusive products, the only way to buy a Kindle in the network is through their official website, although you can find many second hand on ebay or other similar sites.

What is an ebook reader


The ebook has changed the reading activity of millions of fans of this hobby, who have found in this device the perfect accomplice to carry out what they love most: reading. In this article we tell you in detail what are the eBooks.

The eBook reader has changed the reading activity of millions of people fans of this hobby, which have been found in this electronic device perfect accomplice to do what they love most: reading. Years ago, almost no one could think that an electronic gadget a reality meant reading practice reading forever. This has now once the ebook has proved better than ever, and its peculiarities can break those of the more dubious. But, what does indeed an eBook? What are the major advantages of the eBook in front of traditional books? The eBook is a device that starts from the old PDA's and the first tablets and their role was intended primarily as only a product of reading. Thus, e-books were characterized, first moment, and styling features that attempt to copy the form of the usual paper book. This versatility could be found only through a few simple features: the versatility and independence of the apparatus and the simplicity in the reading activity.

That is, in this way, what most characterizes electronic books: his long autonomy and display designed exclusively for pleasant reading. Thus, in this context arise electronic ink displays, which have an effect paper, which is the lack of proper light and high contrast, with which the words are displayed in a clear and understandable. Also, the lack of lighting on the screen makes the device just waste energy, and which makes electronic book readers are few gadgets extensive battery durability.

The following are the main virtues that today carry ebooks, logically perfected over the years and with the progress on these devices. Thus, these advantages of screen and battery life must be added to have a large memory that can store thousands of books, having both Wireless and 3G connectivity, touch screen, etc.. Also, electronic books today can recognize many different formats documents, eg PDF, MOBI, EPUB, DOC, etc.. Thus, with these you can read almost any book anywhere. Activity with an e-book reader will be continuously comfortable and clear, because its screen, which has no backlight (as is the problem with PCs or tablets) could be read to perfection even in bright sunlight with no glare. The act of reading an e-book reader is, thus, very identical to that of a paper book, it does not hurt your eyes and can be read with him for several hours. Some of the major handicaps that almost always presented the books electrónicosera its high value, which made for very many readers will not be profitable. Even precisely, these gadgets are coming down in price in a greater way, to find ways to achieve a very good e-book reader like the Amazon Kindle, a total of 99 €. There is no longer an excuse to revel in the most notorious reading experience.

Three special types of bushings.


Bushings cars.

In automobile suspensions or other vehicles, and bushings for connection of various components in motion and pivot with the chassis and other suspension systems. To reduce vibration, wear and deterioration due to noise emission, usually incorporate a portion of flexible material such as rubber or polyurethane. Such bushings are usually cylinder shaped ring of a flexible material on the inside of an outer tube. May also have an inner tube to prevent the flexible material from being crushed.

There are many kinds of designs.

Another kind of hub is having a hardened threaded hole that lets a coupling is attached to another by a screw. Using a bushing makes the assembly process is easier, it eliminates the need for the washer and nut on the other side of the material to set.

Bushing bicycles.

Bushings on a bike can be distinguished by its turning system class, which may be sealed bearings or spheres. The field system is an old system, yet is still used in some brands due to its high efficiency, with the drawback that gets dirty easily and the setting operation is complicated. Furthermore, the sealed bearings are almost completely watertight and have greater stiffness, although heavier.

The hub flange is a part that suffers spoke tension wheel.

Bushing vanes.

The hub of a fan component which is located the fan blades, which also supports the rotor and the outer rotating fan.

It is a very important piece in wind turbines. Have systems that let you change the pitch of the helix, consisting of hydraulic, electrical, allowing the blades rotate from zero to ninety degrees, which is the stop condition. Are attached to the hub-called blade bearings that reduce the friction when rotating the blades.

Most of which use turbines manufactured steel for construction of the bushings, using different alloys according to the temperature, humidity, wind, etc..

The current wind turbines, which are capable of producing 1.5 to 2 MW, typically have a weight counting all elements of a fifteen to twenty tons.

Bearings working with a film of lubricant


Bearing in closed system with lubricant pressure working with very high efficiency and very regularly, once it has reached the speed. But, when the shaft speed is low, it can keep the lubricant film as well as when movement starts, or when the rotation direction reverses. Breaking this layer of lubricant increases the bearing friction and increased wear. That is, direct contact occurs between the material of the shaft and bearing material, with consequent wear of one or circumstance can be avoided dos.Esta putting high pressure oil between the shaft and the bearing. If the oil pressure is adequate, the journal is lifted and will be continuously high for a film of lubricant, without differentiating the march from sleep. In these circumstances the friction down to a tenth of friction value. Such lubrication is called hydrostatic lubrication, and if applied to the ball bearings oil is called floatation.

Thus the hydrostatic bearing is applied to the rolling mills.

This type of hydrostatic lubrication is also used for bearing axial forces. Although these have a big push, maintains the oil film both spinning like at rest.

This floating up has been performed in large structures. Hale telescope, which weighs 450 tonnes, is a rotatable support a hydrostatic bearing in which the friction coefficient is less than 0.000004. So, you need a single engine twelfth horse to turn the telescope to direct.

These hydrostatic bearings are also used in large antennas in radio telescopes and radars, with great efforts due to the wind and the enormous weight of these structures.

There is a case in the United States of an antenna of 43 meters in diameter.

Main hydraulic cylinders and motors actuators



Hydraulic actuators can be classified according to how they operate. They operate on pressurized fluids, and there are two main groups, hydraulic cylinders and hydraulic motors.

- Hydraulic cylinders: according to their mode of operation can be single or double acting. The first fluid use force to go out and force other to contract. The double acting fluid power used both to go to contract. These types of cylinders are controlled by a relay which has a spring constant varies according to the passage of electric current.

- Dynamic Pressure Cylinders: carries the force of the cylinder in the ass. The cost of manufacture usually are reduced since there is no sliding parts.

- Single-acting: the rod is situated on one side of the piston. The piston is contracted by the force of a spring or by gravity. The load can be placed at only one end of the cylinder.

- Double acting cylinder. The load can be placed on either ends of the cylinder. Horizontal stress occurs by the pressure gradient between the sides of the piston.

- Telescopic cylinder: a rod having a tube that extends several stages with a fluid force. Longer strokes are achieved by comparing the length of the cylinder.

- Hydraulic motor: in this type of engine is the rotary motion produced by the fluid pressure. They can be classified into two groups: the first consists of gears driven by oil pressure and the second is oscillating, and the rotational movement is achieved by the motion of a piston. The latter is claimed to be more energy efficient. Let these engines more detail:

- Geared Motors: The pressurized fluid passes through the entrance that goes on the gear tooth face producing a torque on the gears. Engine is a very simple structure, so it is recommended for use in high speed applications.

- Piston motor: the pressurized fluid pushes the piston against the force of a flange and which is in the radial direction causes the shaft and the cylinder block rotate in the direction of that force. They are a widely used type of engines for large applications pressures and high speeds.

Axial piston engine: Its function is to absorb a volume of pressurized fluid and return it to the circuit pressure when required.

New technologies for cleaning


New technologies are wreaking havoc for household cleaning.

Authentic designer items, appliances certainly improve the quality of life of those who are concerned with keeping the house clean and in order. But you also get a bonus of design and style to your home.

Cleaning robots, intelligent and compact home appliance that cleans the floor in a fully automatic and pre-programmed.
Get that car emptied automatically   dirt and cleaning memorize your route. After finishing work or dust is full if returned to the charging and dust is absorbed by a central chamber.

A part of this creates a map of areas to be cleaned and look for the best cleaning path to cover 90% of the space of the house.

An example of this type of cleaning appliance serious cleaning the rooms of our houses of chairs, sofas, tables are involved. While programming the robot this will overcoming obstacles as soon as you stop one reverses and route changes.

At that point the next time you put on yourself and makes the journey without actually bumping into the furniture that are involved.

A part of this appliance cordless vacuums have the new smaller size and for all types of soils and areas difficult to access. To clean sofas for example handheld vacuums are bagless. They are more ergonomic and easier to use. They get to any corner.

For now that's all about helpers and cleaners, but the confidence we have is that technology prepare us new models which keep the house clean with a pin without moving the sofa and so make life more comfortable

Inclined shaft coupling,-Spicer CV joint Glaencer


The CV joints were made to solve the problems posed by universal joints, ie not allow the speed to be transmitted through them consistently, ie the input and output speed do not match perfectly, producing large amount of vibration .

Joint type discussed here is the union of two cardan so disrupting the turn one makes up for the other, producing a uniform speed transmission gives the car's wheels. Can be considered as two cardan shaft connected by a very short length. Añadidamente have a centering system consisting of a ball and a small area, so that it can slide along the driven shaft. At the other end of the bearing, ie the difference is coupled another sliding universal joint, or you can arrange a meeting desliazante Glaencer dipole. This system consists of a tripod to where they join the rollers which are housed in grooves of a cylindrical sleeve which can slide. Within the tripod is attached the shield and on his cap the planetarium, producing a slip joint. The bush together with the dust and capping using the system enclosure.

This type of joint is permanently greased and are all low volume they occupy. Its performance is very good and have very little friction with the sliding and these joints CV behaves as any kind of angle, with a high capacity to transmit power and energy efficient. They are called GI, it is always adjacent to the differential.

In vehicles with front wheel drive aforementioned board is often accompanied by a constant velocity joint Glaenzer-Spicer (GE for being next to the wheel) or Rzeppa type ball joint.

Meet the most used tablets


For all those people who are thinking about buying a tablet we recommend the new models of Samsung and Apple leading companies in this area, we have launched the Samsung Galaxy Tablet 2.0 and the new Ipad 3 respectively. Either of the two models shows a clear tendency to want to combine into one tablet a laptop and a smartphone, and having the characteristics sufficient to be considered that way.

At first, the first tablet that appeared were only created to develop specific functions such as viewing photos and videos, read books or documents, play games, surf the Internet, check email and social networks. These new models of tablets have overcome these barriers, and simply look at its exterior design and see the dimensions they have, we can conclude that they have been designed to take you anywhere and to be manipulated with one hand without any inconvenience , despite still maintaining the ideal resolution of the screen, so you do not have display issues like usual with Smartphone. They also have very powerful features that make them suitable to perform any function that makes a computer, can completely ignore these.

Tablets are mobile device and increasingly now we can see more and better models that are targeting more and more with these computers can combine both a laptop and a smartphone in a single device. Companies like Apple and Samsung, the market leader in tablets and mobile devices in general, have launched the new Ipad 3 and the Samsung Galaxy Tablet 2.0, which are a clear example of this.

Main types of mechanical couplings


The major classes of couplings are rigid couplings, flexible couplings, fluid couplings and magnetic couplings.

Rigid couplings do not support misalignment of the axes. In this group:

- Sleeve couplings: in this case the axes are connected by a cylindrical shaped piece cylindrical inner hole. Not allow shaft misalignment. Its main application is to link several axes forming one very long, since a so long could not be produced.

- Split sleeve couplings: is similar to above, but the sleeve is formed by a pair of parts, which are joined with screws. Unlike the earlier allow replacement without displacing the shafts.

- The plate flange couplings: is formed by a pair of axles forged plates. Then the plates are joined with tronillos and nuts.

Flexible couplings withstand some misalignment of the axes and also absorb sudden changes in power the transmit power.

One of the simplest types are the flange. Consists of a plate which is attached to each axis and then the periphery of the plates are joined together using a caucha rim, so that the power transmission is carried out through tire. Are also known as Periflex.

Another type is formed by two plates joined to the shafts and these plates joined together by screws, but tronillos have a rubber coating, so that power transmission is performed through these rubber bushings.

These couplings have seen that refer to axes that are collinear or at a small angle of misalignment, for larger angles of misalignment are used Cardan joints and constant velocity joints. The first has the disadvantage that the speed is not continuously transmitted error if address and resolve the latter.

Axial, radial and mixed.


The following are the three main types of bearings, depending on the type of load bearing, ie axial, axial load, radial load radial and mixed for radial and axial letters.

Radial bearings:

Bearing groove ball type have many applications. They are very simple construction, high strength and easy maintenance. May be one or two balls caminaos and can provide sealed or open.

By having areas such as rolling element, friction is very small, so they are widely used in situations requiring high speeds.

Are a type of bearing radial, ie mainly supporting radial loads, but also have the ability to withstand small axial loads.

Bearings mixed:

The ball bearings of angular contact type, the raceways are oblique to the axis, so that both support, radial and axial loads. Because of this, to prevent axial movement must be placed two opposite each other

This type of bearing is arranged a special finish called Xlife, these tracks are better quality and rolling balls too, so you get a bearing with a 50% longer life than normal execution.

Axial:

Other types of bearings are thrust bearings that support only axial loads, ie loads parallel to the axis is supported by the bearing. Axial ball bearings consist of two shaft ring, two rings of housing and a ball corana. This type of bearing only held together after assembly, ie, different parts can be mounted separately.

There are of this type with flat discs with spherical housing rings, to compensate for errors in the alignment of the shaft to be supported. These types are usually combined with the use of a backplate.

Also may be of single or double acting also. Both support very high axial loads but no axial loads.

New shop in the market for home appliances.


Zaquia market has come to change the situation in which foreign companies were the leading appliance e-commerce.
So the company recognized Iritec, even with fewer resources than large foreign companies in the sector, wanted to launch a new online store 100% and show the public Spanish Spanish you may succeed.
Zaquia is the first online store for appliances and electronic 100% Spanish and, for now, the only one in the whole web. Although it takes up little time and has been echoed by the network and its purpose is to become the number one selling industry and electronic products. Displacing large foreign companies have more resources.
With Zaquia can communicate in a much better, because as they say on their website, not only because they speak the same language, but also because every day they put in our place to give us what we need and for the price we need.
In Zaquia online store you can buy electronics such as game consoles, computers, iPods, netbooks, desktops, laptops, computer accessories, personal care accessories, among other things, as well as all kinds of home appliances, cabinets, freezers, ovens, washers, dryers, dishwashers, hobs, cooktops and high variety of small appliances (blenders, juicers, coffee makers, toasters, etc ...).
The catalog Zaquia shop is equipped with products belonging to a supplier 100% Spanish. This, besides offering best prices, we also guarantee that we will get products are of the highest quality and the best service that you can ofrecer.Visite the blog of the Art of appliances and find the best new of industry.
Buy in Zaquia is very easy as its online store presents a clear and simple interface. Accept multiple payment methods (Credit card, Paypal or Cash on) and sends products to the door of your house, so you can buy your appliances and electronic easiest.
If you are thinking of buying appliances or home electronics online, we recommend you visit the online store and you know Zaquia all his catalog. In the find different categories and subcategories to find everything you need in a clear and simple way. We hope that you like and you enjoy buying.

Meet best Fnac


Fnac is an abbreviation of the French name "Federation Nationale d'Achats des Cadres" ie "National Purchasing Federation of Professionals", a French company specializing in the sale of electronic products, technology, photography, books, decoration and other ...

On the one hand Fnac offers its online service in the high sales of items at an attractive price trend as seen in the last month period. April was the month of book that has allowed customers to benefit from fnac discounts up to 5% in one.

On the other hand, every time, the customer will receive an email with news of the latest developments in electronics, books, music and video services such as cafeteria or newsstand. Gifts and benefits available in the store for each event in order to satisfy the customer with good quality. In addition, a space program for partners by card, with discounts and special offers on products. If it lacks a digital book or not ..., in fnac there several different history of each type or issue that you can buy in a few minutes through the virtual page.

Fnac is the leader in high technology books and electronics because starts in visiting your page for the benefit of its latest developments and advantages.

Discount Coupon fnac is waiting for all to be used and allow them to benefit from the small s reductions but to take advantage of the customer must sign up for the newsletter.

Fnac always seeks the best for their customers to be satisfied with the good quality at best price.

There is always a chance like that in stores for brands such as Samsung, Canon, LG ... From that, we must not lose any more time to visit the online and make purchases quickly.

Develop a technology that optimizes water purification systems


The company TecnoConverting, company leader in the water treatment sector - and CTM Technological Centre Foundation - which is part of TECNIO, the only network that promotes technology transfer and business innovation in Catalonia - offer a technology that optimizes purification systems and water treatment, especially in the secondary settling stage.

It uses the numerical simulation by finite element method to calculate and validate the design of systems with lamellar settling. Through computational fluid dynamics calculation with commercial programs, we have determined the distribution of the water flow and speed, the possible presence and location of turbulence and recirculation zones, identification of areas where there will be sedimentation depending on the type of snowflake and suspended particles, predicted in lamellar seals, etc.. With this strategy, we evaluate the efficiency of these systems preliminary design of settling.

Lamellar settling systems aim to accelerate the sedimentation of suspended solids (eg clays) carrying the water and that impair further processing. Its application can seek stations drinking water treatment (ETAP), water purification systems industrial watertight sedimentation systems, or circular secondary clarifiers, among others.

From now on, with this innovative technology, companies who need to install the lamellar decanters in their buildings (eg treatment plants), can check beforehand if the design they have made is optimal by numerical simulation in conjunction with the application of theoretical formulation and empirical experimentation. Thus, validation is performed design, while suggestions for improvement are made, in order to increase efficiency and avoid future modifications or repairs later.

This application is particularly relevant to the proper design of water treatment plants for drinking and even circular secondary clarifiers and decanters that have been small and, rather than replace them with larger, opt for incorporating this type of decanters to make them more efficient.

The calculation strategy developed by the Foundation TecnoConverting and Tecnològic CTMCentre Tecnotec called, and is an exclusive service TecnoConvertig the company makes available to its customers for the sizing of their lamellar decanters.

Which ebook is better to give


Not everything is in the world of Kindle ebooks. Yet despite the great importance of ebook The Amazon website, some small companies have managed to establish themselves among the leading manufacturers of digital readers and offer the buyer a very good device to lower comummente values. Thus we find BQ Readers Spanish company, which has been formed as an important alternative to Amazon and Sony, to name a few. Readers BQ is, thus, a Spanish company dedicated to designing, manufacturing and sales of e-readers and tablets. In 2009 this company is formed, first starting to distribute their eBooks with the name "booq".

In 2011 its name is changed to "BQ" and sells about four ebooks (bq Avant, Cervantes bq, bq bq Avant Pocket Plus and XL). In 2011, BQ has been at the lead sales e-readers, be well, and as a study of the economic market, the Spanish company that has undergone further development between 2010 and 2011. What characteristics lead Readers BQ ebooks? As they are, first, a very high category gadgets whose high performance leave satisfied even the most demanding reader. And these ereaders have all the advantages of the most famous companies in this market, but usually at a cost lower than these, with a very competitive price for the reader who will make the purchase of an eBook.

Which explains, as we advanced, why BQ Readers experienced in 2011 one such high sales numbers in a booming sector and increasingly contested than ever. In 2012, BQ Readers have four different types of e-book, answering each of these different devices to the many needs of the customers (for example, a larger screen, a more economical price, etc..). Thus, we explain a brief analysis of the current e-readers Readers BQ Company: First, under both ebooks that have a touch screen, we find: - Movistar ebook bq: it has a touch screen 6 inches, which is characterized by 16 gray levels. Take Wifi and 2GB of memory inside. - Avant BQ 3: similar to Movistar ebook bq, though your screen has SiPix technology (improved electronic ink makes longer battery life, increase the resolution of the screen and provides a wide viewing angle) and accelerometer, among other features. It is the newest of BQ and highest performance. And the two copies that do not have touch screen technology are: - BQ Cervantes 2: Without Touchscreen, 6-inch size, and also 2GB memory. It has Wi-Fi technology. - BQ Cervantes Lite: the smaller ebook BQ, essential and affordable.

It has a 5 inch screen, no, no, Wifi. Thus, all types of ebooks BQ Readers respond to the needs of readers, and this is possibly the reason for its popularity, as not all readers need a touch screen or Wifi. The ereader is to read and imitate invented reading a traditional book, and it does BQ Readers perfectly.

To learn more about the ebook fashion, and ask yourself daily what ebook I buy, do not hesitate to search the Internet all the information you need. Is varied and complex but very useful. Do not forget, ebooks are the future, decide which is the most widely adapata you, or what is the best ebook to give away .
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