Tuesday, December 27, 2011

Celestron at NEAF 2009 - Sky & Telescope

!9#: Celestron at NEAF 2009 - Sky & Telescope

S&T senior editor Dennis DiCicco talks to Celestron about its new products at the NorthEast Astronomy Forum 2009

Celestron at NEAF 2009 - Sky & Telescope

Discount 312 Hearing Aid Battery

Tuesday, December 20, 2011

Celestron Edge HD 14" F/11 Aplanatic SCT OTA Telescope 91060-XLT

!9#: Celestron Edge HD 14" F/11 Aplanatic SCT OTA Telescope 91060-XLT

Rate :

| Price : $4,999.99 | Post Date : Dec 20, 2011 17:50:05
Usually ships in 3-5 weeks

Celestron's innovative new EdgeHD telescopes are aplanatic Schmidt Cassegrain models designed to produce aberration-free images across a wide visual and photographic field of view. Celestron EdgeHD optics produce a focal plane more than three-times flatter than a standard Schmidt Cassegrain telescope. This guarantees you visibly sharp stars across some of the largest CCD chips available today. Superior edge performance not only creates rounder, more pleasing stars but actually improves the resolution and limiting magnitude when compared to telescopes of equal aperture. With Celestron's High Definition optics you will be able to capture the faintest of galaxies all the way to the corner of your full frame camera chip. Coupled with Celestron's XLT coating group on every surface, EdgeHD optics gives you maximum light throughput across the widest visual and photographic spectrum. The EdgeHD tube has been redesigned with top-notch features to make sure you get the most from your optics each and every night. Mirror locks hold the mirror in place and reduce image shift when rotating the tube around the mount. Flexible rods allow the mirror to be held in place without putting any force or pressure on the mirror, keeping the image centered in the eyepiece (or chip). Cooling tube vents located on the rear cell allow hot air to be released from behind the primary mirror. Each vent has an integrated 60 micron mesh filter guaranteed to let warm air out without letting dust in.

Buying Babee Tenda Crib

Tuesday, December 6, 2011

Celestron Edge HD 1400 On CGEM DX Mount 14" F/11 Aplantic SCT Telescope 11004

!9#: Celestron Edge HD 1400 On CGEM DX Mount 14" F/11 Aplantic SCT Telescope 11004

Brand : Celestron | Rate :

| Price : $6,999.00
Post Date : Dec 06, 2011 18:24:54 | Usually ships in 3-5 weeks

Celestron Edge HD 1400 on CGEM DX Mount 11004

Celestron's CGEM DX 1400 features Celestron's high-end 14" Schmidt Cassegrian OTA with XLT coatings mounted on Celestron's brand new CGEM DX mount. The Celestron CGEM DX mount is the newest member of Celestron's fully computerized Equatorial mount series capable of carrying Celestron's high-end 11" and 14" optical tubes. The CGE PRO style, 2.75" leg tripod holds even the Celestron's 14" optics securely while dampening vibration, which is ideal for both imaging and visual observing. Capable of holding 50 lbs of payload and slewing at 5 degrees per second, you will be able to instantly point to any of the celestial objects in the database.

Ergonomic Design - The Celestron CGEM DX was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.

Innovation - The Celestron CGEM DX series has a new innovative Polar alignment procedure called All-Star. All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM DX sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.

Performance - For objects near the Meridian (imaginary line passing from North to South), the Celestron CGEM DX will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 100 user defined programmable objects and enhanced information on over 200 objects.

Power Management - Redesigned electronics deliver constant regulated power to the motors making them capable of drivin

14" Edge HD Optical System
Premimum Celestron Starbright XLT Coatings
9x50 Finder Scope & Star Diagonal For Enhanced Viewing
Celestron CGEM DX Mount Holds a maximum instrument capacity of 50 lbs
CGEM DX Computerized Equatorial Mount

Bum Genius Diapers Purchase

Sunday, November 13, 2011

Celestron CGE Pro 1100 HD Computerized Telescope 11093

!9# Celestron CGE Pro 1100 HD Computerized Telescope 11093

Rate :

| Price : $7,999.00 | Post Date : Nov 13, 2011 15:51:30
Usually ships in 3-5 weeks

Celestron CGE Pro 1100 HD Computerized Telescope 11093

Canon T21 Grand Sale

Thursday, November 3, 2011

Celestron EdgeHD 925 CGE Pro Schmidt-Cassegrain Telescope

!9#Celestron EdgeHD 925 CGE Pro Schmidt-Cassegrain Telescope

Brand : Celestron
Rate :

Price : $6,299.00
Post Date : Nov 03, 2011 08:16:38
Usually ships in 3-5 weeks

Promotions Treadmill Precor Garmin 405cx Get It Now! Best Buy Portable Ecg

Monday, October 24, 2011

Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube

!9# Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube

Brand : Celestron | Rate :

| Price : $2,999.00
Post Date : Oct 24, 2011 23:08:38 | Usually ships in 24 hours

Celestron CPC 1100 StarBright XLT GPS Schmidt-Cassegrain 2800mm Telescope with Tripod and Tube

Celestron CPC-1100 (XLT) Telescope - ?New alignment technology -- ?Advanced engineering -- ?Bold new design -- ?Celestron's Professional Computerized (CPC) telescope series redefines everything that amateur astronomers are looking for-quick and simple alignment, unsurpassed optical quality, ease of set-up and use, ergonomics, enhanced computerization and, most important, affordability. -- The scope feature a 16-channel GPS system and SkyAlign Technology. Simply line the telescope up with three different stars and the telescope does the reset. The computer system provides access to a database of over 40,000 objects in the sky. The Starbright® XLT High Performance Optical System provides bright, clear views. The convenient remote hand control holder allows you to view information hands-free while using the scope. The scope's ergonomic design means you can comfortably lift and move the telescope from location to location. -- Other features include 2800mm f/10 focal length, 8x50mm finder scope with quick release bracket, dual fork arm mount, 40mm (59x) 1.25" Possl eyepiece, 1.25" star diagonal, 1.25" visual back, 23' tube length. 2-year warranty

More Specification..!!

Acoustimass 6 System Free Shipping Ed Hardy Perfume Love And Luck Buy Now

Tuesday, October 11, 2011

The Gregorian Telescope - The First Practical Reflector

!9# The Gregorian Telescope - The First Practical Reflector

[if ]

[endif]

The Gregorian Telescope is an interesting design of reflector and it was the first practical design for a telescope that used a mirror. It is still used in modern times but only in very limited circumstances.

Credit for the first reflector goes to an Italian professor named Niccolo Zucchi. He made his first scope in 1616 but the design of his scopes was not very practical. James Gregory was a Scottish Mathematician and Astronomer of the 17th Century and he is credited with having designed the first practical reflector telescope. In 1663 he published this design in his book titled Optica Promota. But he didn't build the first working model until ten years later with the help of scientist Robert Hooke. It was in this ten year period that Sir Isaac Newton built his famous Newtonian telescope (1670). So the Gregorian telescope predates the Newtonian in design but Newton's was the first to be built.

How the Gregorian Telescope works

To understand how the Gregorian reflector works we will first take a look at the Newtonian telescope. In the Newtonian a parabolic mirror placed at the bottom of a tube and it focuses light back up the tube to a flat mirror that directs it out the side of the tube to an eyepiece. The eyepiece is on the side of the tube. In a Gregorian design the parabolic mirror is at the bottom of the tube and it focuses light back up the tube but the second mirror is an ellipsoid and it redirects the light back down the tube to the eyepiece through a hole in the center of the large primary mirror. This type of telescope has the eyepiece at the bottom.

The benefits and shortcomings

Newton's telescope has one parabolic mirror and one flat mirror while Gregory's has a parabolic as its primary mirror and an ellipsoid as its secondary. Additionally, Gregory's primary mirror needed a hole cut in the center of it. These things mean it is a much more optically complex instrument and much more difficult to make. Newton's design is much easier to make. This is probably why it took Gregory ten years to make his first working model.

The Gregorian does have some benefits over the Newtonian style scope. The ellipsoid secondary mirror is placed at a point after the focus of the light. This configuration, in conjunction with an eyepiece, provides an erect or right side up image while the Newtonian telescope gives an upside down image. This is a big benefit if you are using the telescope for terrestrial viewing. And because of this inversion of image after the secondary mirror it allows a baffle to be placed inside the tube. This baffle prevents unwanted light and heat from reaching the primary mirror. This is a very useful tool when a telescope is meant to be used for solar observations where heat is a big concern. For this reason the Gregorian design is sometimes still used for telescopes that will be used for solar observations.

The Gregorian design for a telescope is not used very often in modern times. It has been changed and much improved by the Cassegrain telescope. But the Gregorian does find limited use occasionally as a finder scope that accompanies a larger scope. This is because of the nature of it displaying properly oriented erect images. And because of its ability to have a baffle inside it is also sometimes used for telescopes built for solar observations.

Gregory's telescope design is not much used in modern times but it was the forerunner and inspiration for many of today's telescope designs.

The Gregorian Telescope - The First Practical Reflector

Rug Shampooer Buy Now

Thursday, October 6, 2011

Pervasive Computing

!9# Pervasive Computing

[if ]

[endif]

Pervasive computing is the trend towards increasingly ubiquitous (another name for the movement is ubiquitous computing), connected computing devices in the environment, a trend being brought about by a convergence of advanced electronic - and particularly, wireless - technologies and the Internet. Pervasive computing devices are not personal computers as we tend to think of them, but very tiny - even invisible - devices, either mobile or embedded in almost any type of object imaginable, including cars, tools, appliances, clothing and various consumer goods - all communicating through increasingly interconnected networks.

Modern devices that may serve the ubiquitous computing model include mobile phones, digital audio players, radio-frequency identification tags and interactive whiteboards. Other terms for ubiquitous computing include pervasive computing, calm technology, things that think, everyware, and more recently, pervasive Internet.

Ubiquitous computing encompasses a wide range of research topics, including distributed computing, mobile computing, sensor networks, human-computer interaction, and artificial intelligence.

HISTORY

Pervasive computing is the third wave of computing technologies to emerge since computers first appeared:

o First Wave - Mainframe computing era: one computer shared by many people, via

workstations.

o Second Wave - Personal computing era: one computer used by one person, requiring a

conscious interaction. Users largely bound to desktop.

o Third Wave - Pervasive (initially called ubiquitous) computing era: one person, many

computers. Millions of computers embedded in the environment, allowing technology

to recede into the background.

BACKGROUND

Eight billion embedded microprocessors are produced each year. This number is expected to rise dramatically over the next decade, making electronic devices ever more pervasive. These devices will range from a few millimeters in size (small sensors) to several meters (displays and surfaces). They may be interconnected via wired and wireless technologies into broader, more capable, networks. Pervasive computing systems and services may lead to a greater degree of user knowledge of, or control over, the surrounding environment, whether at home, or in an office or car.There have been calls for more widespread debate on the implications of pervasive computing while it is still at an early stage of development.

PERVASIVE COMPUTING TECHNOLOGIES

Pervasive computing technologies classified in to four converging areas

- Mobile Computing

- Embedded and Applied computing

- RFID and Sensors

- Mobile and sensor networking

Mobile Computing

The widespread use of mobile computing devices has changed the way people compute and vastly expanded research areas in distributed computing and networking. In fact, traditional distributed computing is actually a subset of the broad area of mobile computing. Many topics in "mature" areas like distributed databases, distributed fault tolerance, and resource management now require much additional study, because many traditional assumptions are challenged. Mobile computers operate in more hostile environments, are resource-constrained (limited power, frequent disconnection), and are peripheral-poor.

Mobile computing is changing the way we live and work, as profoundly as the introduction of the automobile did almost a century ago. Key advances in mobile networking, wireless connectivity, mobile information access, content adaptation, data synchronization, technology for notebook and wearable computers, and innovative mobile e-business solutions have come from worldwide research laboratories..

Some of the recent research in mobile computing includes:

WEARABLE DISPLAY OF ATHLETES' STATISTICS

TeamAwear is a basketball jersey that displays real-time information about its wearer's statistics such as their fouls, points, and scores and alerts players when the game is nearly over or when time is running out to shoot. Mitchell Page and Andrew Vande Moere at the Centre of Design Computing and Cognition of the University of Sydney developed the system, which consists of numerous colored electroluminescent panels. A small computer attached to the player's body controls the panels and communicates wirelessly with a server that tracks relevant game statistics. For example, panels on the jersey's side light up to show how many goals the wearer has scored, with each panel representing 10 goals Although the inventors developed the TeamAwear jersey originally for basketball, they claim that it could also work in other fast-paced sports in which player-specific data changes rapidly, such as soccer, volleyball, cricket, and baseball. It could also support emergency teams working in noisy environments where verbal communication is inefficient.

SKYSCOUT

If you've ever looked at the night sky and wondered what stars you were observing, Celestron's SkyScout might be for you. Especially useful for novice astronomers, this handheld device combines GPS technology with a map of the sky to identify, locate, and provide information about celestial bodies. To identify an object of interest, you simply view it through the SkyScout and press the Identify button. SkyScout's technology identifies the object and tells you what it is. To locate a celestial body, you select it from a reasonably easy-touse menu of objects and press the Locate button. SkyScout uses red directional arrows around the eyepiece to guide you to the object in the sky. A nice feature is that the menu shows only objects that should be visible. (Unfortunately, Sky- Scout has no way to know which of those objects are blocked by trees). Finally, the device can educate you about many of the more popular celestial bodies. The information is available both through audio and text and includes facts about the object and its history and mythology. SkyScout's release was delayed in 2006 because of manufacturing problems in one of the components.

NOKIA NSERIES PHONES

Nokia has announced three new mobile phones in its multimedia Nseries, each targeting a different market segment. The N71, N80, and N92 offer a long list of features. The N71, from the Nokia XpressMusic family, offers an FM stereo tuner, a five-band equalizer, and support for audio and video formats including MP3, AAC, eAAC+, WMA, JPEG, and MPEG-4. It offers a 240 _ 320-pixel display and two cameras, one 2-megapixel (1600 _ 1200 pixel) and the other VGA (640 _ 480 pixel). It operates on dual-mode wideband code division multiple access (WCDMA)/GSM and triband GSM. The N80 offers a 352 _ 416-pixel display and a 3-megapixel camera with features including four flash modes, 10 scene modes, manual exposure correction, and four color tones.

Embedded and Applied Computing

Embedded and ubiquitous computing is an exciting new paradigm that provides computing and communication services all the time and everywhere. Its systems are now affecting every aspect of our life to the point that they are hidden inside various appliances. This emergence is a natural outcome of research and technological advances in embedded systems. An Embedded Pervasive Computing Environment is equipped with hardware and software components that autonomously respond to the needs of its occupants. Embedded system is the core part of pervasive computing and it deals with various applications like wearable computer architecture and applications, sensor networks, real-time embedded operating systems, embedded servers, embedded system networking, address-free routing, smart spaces, dynamic service discovery, mobility and case studies. Some of the on-going researches in embedded systems include:

ROLLABLE DISPLAY

Who hasn't dreamt of a display that rolls up when not in use? Phillips took one step toward this dream on a commercial scale when it formed venture company Polymer Vision in January 2004. Polymer Vision recently reported that it can make a flexible display with a 2 cm bending radius. The display is an organics-based, QVGA (320 240 pixels) active-matrix display, 5 in. on the diagonal and 85 dpi. The display layers a 200-micron thick, reflective Electronic-Ink display from E Ink Corporation (www.eink.com) on top of a 25-micron thick, active-matrix plane.

USING LANDLINES FOR CELLULAR CALLS

Xcelis (www.xcelis.com) has developed an innovative product for coupling cell phones and landline handsets. The Pantheon (see Figure 3) plugs into a landline phone line and, using a Bluetooth connection, routes incoming and outgoing voice calls and data from users' cell phones to their landline handsets. The Pantheon indicates incoming mobile calls with a distinctive ring. While the mobile call is in progress, it doesn't tie up the landline, meaning you can still receive landline calls through your other telephones.
You need one device for each landline telephone that you want to multiplex. When making calls from your landline, you can choose whether to use your cell phone or landline account. The Pantheon provides additional features, including conferencing a landline call and a mobile call, accessing a user's mobile phonebook from a landline phone, and switching mid-call from a landline phone to a mobile phone. The Pantheon is also compatible with voice over IP handsets.

BIONIC ARM

Todd Kuiken at the Rehabilitation Institute of Chicago at the Northwestern Feinberg School of Medicine has developed a thought-powered bionic arm. The arm is based on a pioneering muscle reinnervation procedure that takes an amputee's nerves and connects them to a healthy muscle. Doctors take nerves that used to go to the arm and connect them to chest muscles. The nerves grow into the chest muscles and can contract the muscle when the patient thinks, for example, "Close hand." Electrical signals from the chest muscles drive the arm. Surface electrodes sense these impulses from the pectoral muscle and carry them through to the arm, causing it to move. Jesse Sullivan, a high-power lineman who had both of his arms amputated after being severely electrocuted, is the first patient to be outfitted with bionic arms. The arms have enabled him to do daily activities such as put on socks, shave, eat dinner, take out the garbage, carry groceries, and vacuum. Future generations of the arm will incorporate the sense of touch and feeling.

Mobile and Sensor networking

Sensor mobility allows better coverage in areas where events occur frequently in many sensor networks, considerably more units are available than necessary for simple coverage of the space. Augmenting sensor networks with motion can exploit this surplus to enhance sensing while also improving the network's lifetime and reliability. When a major incident such as a fire or chemical spill occurs, several sensors can cluster around that incident. This ensures good coverage of the event and provides immediate redundancy in case of failure another use of mobility comes about if the specific area of interest (within a larger area) is unknown during deployment. For example, if a network is deployed to monitor the migration of a herd of animals, the herd's exact path through an area will be unknown beforehand. But as the herd moves, the sensors could converge on it to get the maximum amount of data. In addition, the sensors could move such that they also maintain complete coverage of their environment while reacting to the events in that environment. In this way, at least one sensor still detects any events that occur in isolation, while several sensors more carefully observe dense clusters of events. On going researches in sensor networking includes:

WORLDWIDE BROADBAND WIRELESS ACCESS

Option is offering a PC data card that can access wireless broadband worldwide. You can use the GlobeTrotter GT Max on the 850, 1900, or 2100 MHz HSDPA/UMTS (High-Speed Downlink Packet Access/Universal Mobile Telecommunications System) networks and the 850, 900, 1800, or 1900 MHz EDGE/ GPRS (General Packet Radio Service) bands. The card can support data speeds up to 1.8 megabits per second on HSDPA networks, 384 kilobits per second on UMTS networks, 247 Kbps on EDGE networks, and 85 Kbps on GPRS networks. It's a Type II PCMCIA (Personal Computer Memory Card International Association)-compliant 3.3-V PC card and includes a novel "Butterfly" retractable antenna that doesn't require users to remove the card when it's not in use. Numerous wireless carriers offer the card, including Cingular, which recently announced that it would offer it under two plans. One plan will cost users 0 per month and includes unlimited data use in the US and 100 Mbytes of downloads in Canada and Mexico. The other plan will cost 0 and will include unlimited use in the US and 100 Mbytes of downloads in 24 countries including Australia, China, France, Italy, and Germany.

THE SELF-CLEANING HOUSE OF THE FUTURE

The house of the future won't need cleaning. Not by humans, leastways. Every surface will be dirt-repellent and antibacterial; and on the floors the vacuum cleaner is buzzing around - all on its own. The outer walls are all glass which can be screened off entirely and the interior surface used as TV screen. The scenario of the self-cleaning house belongs in the distant future, maybe 20 years from now. With the rapidly increasing development of nanotechnology we have seen for the past few years, it is not easy to predict a specific time span and it will be not only self-cleaning but also self-sufficient, energy wise. Today, the Australians are already experimenting with nanoglass-houses where the glass can be treated with a pigmented coating rendering the entire house non-transparent - the roof included.

WALL SENSORS

The house of the future will be capable of alerting its owner if it's in need of repair. The building materials will, of course, be susceptible to wear and tear due to wind and weather, and they will therefore have built-in sensors. When these sensors appear, the house computer will receive a message that this particular section needs repair. A variety of conditions are similarly monitored. This way, house owners can cheaply repair worn materials and avoid major, expensive repairs after the damage has been done.

THE INTELLIGENT HOUSE

The intelligent house of the future will alert the fire brigade in case of fire when you're at work. Or, if you've got a leaky water pipe, it will get hold of the plumber. Multifunctional sensors throughout the house will keep an eye on heating, lights, indoor climate etc. The house of the future will comprise two major digital gateways. One gateway will be the media server which comprises the complete collection of the family's music, films, photos etc. Another feature will be the highly secure homegateway - a server communicating with the many sensors distributed all over the house to monitor heating, indoor climate etc. The two gateways are separate entities, as the security on the homegateway needs to be exceedingly tight. This gateway should not be exposed to hacking, which could have fatal consequences with respect to security. If, for instance, the motion detectors are tampered with, the burglar alarm might be disabled. Likewise, it would be an unpleasant experience to come home to a room temperature of 40 degrees Celcisus, because someone is mad at you and has hacked into your system to change the temperature settings Thus, each room in the house of the future will be equipped with small sensors. - Larger rooms may have several. They will measure the physical conditions in the room and communicate with the homegateway which will then take care of the Internet-based communication out of the house.

RFID and Sensors

Radio frequency identification (RFID) technology uses radiofrequency waves to transfer data between readers and movable tagged objects without line of sight. RFID holds the promise of real-time identifying, locating, tracking and monitoring physical objects, and can be used for a wide range of pervasive computing applications. To achieve these goals, RFID data have to be collected, transformed and expressively modeled as their virtual counterparts in the virtual world. RFID data, however, have their own unique characteristics - including aggregation, location, temporal and history-oriented - which have to be fully considered and integrated into the data model. The diversity of RFID applications pose further challenges to a generalized framework for RFID data modeling. Today, Radio Frequency Identification enjoys an enormous interest as the first widely deployed pervasive technology as not only from the standpoint of research
but also from Corporate practices future. Some of the recent researches in RFID technologies include:

TAGS EVERYWHERE

The Ubiquitous ID Center provides the infrastructure for managing electronic tags embedded in or attached to objects in a ubiquitous environment. The center developed the ucode, a multicode tag that automatically identifies information stored in bar codes, RFID chips, smart cards, and electronic tags embedded in virtual entities such as software and electronic money. Comparable to the ISBN (International Standard Book Numbering) code used in the publishing industry, the UID Center assigns unique numbers to each tag and stores data relating to the object in database servers. The ucode tags use a 128-bit code that can be extended in 128-bit units, creating a virtually limitless string of numbers. To navigate this tagged environment, the UID Center developed the Ubiquitous Communicator, a PDA-like device that reads ucode tags and retrieves the relevant data from the UID Center's server database. The standard UC has a host of features, including wireless LAN, Voice over Internet Protocol, infrared data communication, and a biometric reader. Apart from the PDA-like version, the UID Center developed a cell phone model and a watch style. At home, it will serve as the remote control for home entertainment systems and appliances. In the office, it will read a printer's tag and order a replacement cartridge as needed

FROM UPC TO RFID

Smart packaging became a possibility with the introduction of small battery-free microprocessors called RFID (Radio Frequency Identification Device) tags. Though these have been commercially available for a number of years, they have been too clunky and too expensive for use in packaging. This situation is changing rapidly: industry experts predict that the price per tag will fall to under 10 cents each in the course of five years or so. The new generation of RFID tags can take the form of a sticker like the classic bar codes, or they can be directly integrated into the packaging material itself. They consist of a silicon microprocessor and some form of radio antenna--conductive carbon ink is replacing the more expensive metal coil of earlier tag types. This radio antenna functions as both input/output channel and power source. Electricity is generated in the antenna by either a magnetic field or a radio signal; the tag responds by sending out a radio signal in turn. This reply signal contains metadata stored on the chip, typically an ID number .With the help of RFID readers--in our cell phones, in supermarket freezers and check-outs, in our private fridges--we will be able to retrieve information about a particular item based on its ID number. In fact, the first cell phones with built-in readers, based on NFC (Near Field Communication) technology, are already on the market.

NEXT-GENERATION TAGS

The smart tags which will soon begin replacing bar codes in our supermarkets are actually pretty dumb: their only ability is reciting their ID code on command. With the next generation of MEMS tags, the epithet 'smart' will be more fitting. MEMS (Micro Electro Mechanical Systems) tags are able to perform measurements and calculations. MEMS tags are especially interesting in connection with extremely perishable goods like milk and meat. Studies have shown that the 'sell by' date on such products is dubious at best: milk only stays fresh until the given date as long as it is stored at the right temperature. Storage is the key term here; for example, that the temperature in around one-fifth of the meat and dairy cases in American supermarkets is three or four degrees too high. And what happens when we leave the milk out on the kitchen counter all morning? MEMS tags in smart packages will be able to take the milk's temperature every fifteen minutes. The measurements are then sent to a small microprocessor which calculates the milk's estimated freshness.

FOOD SAFETY

The fridge of the future will have a door with a built-in scanner for reading the digital tags on food packages. This way the refrigerator will always keep abreast of what is put into it; and the screen on the door can supply an overview of what's behind the door. By scanning all foodstuffs, you will always have an updated listing of your current supplies - canned and frozen food included. In other words: the refrigerator comes to play the part of digital administrator of the kitchen. Should you e.g. keep food approaching its expiry date, the fridge will alert you. The product can then be used at once, and you avoid having to throw away food. The screen is connected to the Internet, and each and every chip tagged to the packaging will represent a Web site which can be visited by the fridge as the food products are stowed away. Thus it can check for any warnings issued for this particular product. We all remember instances of contaminated food which, undetected by producers, have ended up in supermarkets and, consequently, household fridge or freezer. In such cases, an alert from the refrigerator could reduce the risks considerably. Since the fridge frequently runs automatic checks on the net, users are no longer dependent on radio and TV alerts.

Editor:

Mr.S.Vijayakumar

Research Associate - TIFAC-CORE

Velammal Engineering College

Chennai - 600 066

Email: Vijayece2002@yahoo.co.in

Pervasive Computing

Best Bookshelf Speaker Best Quality Great Deals Keurig Vs Tassimo

Friday, September 30, 2011

Celestron EdgeHD 1100 CGEM Schmidt-Cassegrain Telescope

!9# Celestron EdgeHD 1100 CGEM Schmidt-Cassegrain Telescope

Brand : Celestron | Rate :

| Price : $3,499.00
Post Date : Oct 01, 2011 00:24:35 | Usually ships in 2-3 business days

Celestron 11" aperture aplanatic Schmidt-Cassegrain telescope produces astrograph-quality flat focal plane
EdgeHD coma-free Cassegrain optics and a built-in field flattener ensures sharp focus all the way to the edge of the field
Flexible tension clutches hold the mirror in place and reduce image shift when rotating the tube around the mount
Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror
All EdgeHD optical tubes are Fastar compatible for imaging down to f/2 with optional accessories

!9# Canon PowerShot SD980 IS Purchase Seventh Generation Dish Soap Mitre Saws Compare Top Quality

Monday, September 26, 2011

Celestron CGEM CPC

!9# Celestron CGEM CPC

Celestron CGEM 1100 Dream Discovery HD show you. El nuevo el Telescope MEGCs HD 1100 Montura de diseño computarizada CGEM Equatorial combination with System of nuevo EdgeHD Optico. Ofrecer Imágenes más hasta 89% of the United Nations de que hasta el 40% más United Nations and these brilliant 8''y 9.25''. El nuevo todo el poder System Optico EgdeHD toma por los popularizado telescopios Schmidt-Cassegrain Compact with the UN System y Mejorada definición de lo combination optics, you Permite que Realizelarge scale de calidad y de campo astrophotography. Puedes buscar como Instrumento de todos los Objetos Messier catalog Observaciones y otros cientos de Objetos de los interesantes Catálogos equally from both NGC, IC y Caldwell. Observaciones para Astronomical imagen, el diseño EdgeHD disminuye Considerable aberración en la la. Even Realize Permite, en el de la Cámara CCD USE, en todas las estrellas buen a fire. Manti and limit difracción de los Objetos en todo el DuringCampo de vista de muchas de las más populares astrofotográficas camara. El más veces UN EdgeHD 11''zu produce que el plano Priority 3 Equivalent to a UN SCT Telescope plano. Junto este nuevo diseño with Optico, el también has EdgeHD rediseñado mecanismos que el mejor ayudarán Get yourself a telescope de Rendimiento you, como lo que en lugar the UN Asegurador espejo y los cambios en mantles of reducing Movement During Observaciones; Ventilacion liberate those allowed el aire caliente ofMain non-espejo, espejo Secundario desprendible ...

Celestron CGEM CPC

Price Thermos Straw

Thursday, September 22, 2011

Celestron CGEM 1100 - 11" SCT Telescope on CGEM Equatorial Mount 11099

!9# Celestron CGEM 1100 - 11" SCT Telescope on CGEM Equatorial Mount 11099

Rate :

| Price : $3,399.00 | Post Date : Sep 22, 2011 08:37:02
Usually ships in 1-2 business days

Celestron's CGEM-1100 features Celestron's high-end 11" Schmidt Cassegrian OTA with XLT coatings mounted on our brand new CGEM mount.

The CGEM mount has a fresh, attractive, bold appearance and is capable of carrying Celestron's higher-end SCT optical tubes (up to 11") securely and vibration free which is ideal for both imaging and visual observing.

Ergonomic Design - CGEM was designed to be ergonomically friendly with large Altitude and Azimuth adjustment knobs for quick and easy polar alignment adjustment. The internal RA and DEC motor wiring provides a clean look and an easy and trouble free set up.

Innovation - The CGEM series has a new innovative Polar alignment procedure called All-Star (patent pending). All-Star allows users to choose any bright star, while the software calculates and assists with polar alignment. Another great feature of the CGEM, sure to please astroimagers, is the Permanent Periodic Error Correction (PEC) which will allow users to train out the worm gears periodic errors, while the mount retains the PEC recordings.

Performance - For objects near the Meridian (imaginary line passing from North to South), the CGEM will track well past the Meridian for uninterrupted imaging through the most ideal part of the sky. The CGEM mount has a robust database with over 40,000 objects, 400 user defined programmable objects and enhanced information on over 200 objects.

Celestron's CGEM mount is the perfect fit between the Advanced Series and CGE Series. Offering the portability of the Advanced Series and the precision of the CGE.

Features

* Ultra Sturdy 2" steel tripod with Accessory Tray * Star diagonal provides more comfortable viewing position when observing objects that are high in the sky * 40,000 object database with 400 user-definable objects and expanded information on over 200 objects * Proven NexSt

Ijoy Massage Chairs For Sale Coupon Youthology Serum Saving Lenovo Thinkpad T Series

Saturday, September 10, 2011

Astronomy homeschool on a budget

!9# Astronomy homeschool on a budget

[if ]

[endif]

First, in astronomy there is a large financial investment. Just go out and look. Immediate success. You see the stars.

But then comes a thirst for more. What are the stars? Why move in the sky? And what has that twinkle in his eyes and glistening all over? Do not ask, since thought Superman wore underwear. These questions are worth a trip just responded to your local library.

Then it happened. Discover has its own cityan astronomy club. "Come and see the stars," he curls up! "Free star party on Saturday!" Armed with a thermos of hot chocolate and cookies your wife trudging the hills star of the party. And you see everything - not just the stars and galactic nuclei, but all the telescopes.

WOW.

Your wife is not happy to trade the car for a telescope. Call them crazy, but a telescope does not collect food or take the kids to ballet. In fact, it's a gadget, the things we were lookingSince one of you were there before. You're only doing it now all fired. And yes, things most of them shining, it's there when you retire, so why not wait until then?

"Since the purpose of life, the happiness that can only be experienced in the actual experience," says the Dalai Lama with a lot of patience.

"But the Dalai Lama has four children and two mortgages," your wife counters. So what will you do?

Astronomy ClubTelescopes are for members, but if you want something right now? (We are Americans, after all.) And you want to share with your children for astronomy, and are not likely to share an expensive telescope with dirty hands. There must be an alternative happy. But what?

Go get a raft. The inflatable kind that you have lurking in the garage already. Put it on the lawn and pull a pair of binoculars. A good pair. Add cocoa and biscuits, andInstant Star have a party worthy of every amateur astronomer.

How to get a good pair of binoculars? Here are some ideas that might work for you (Backyard Astronomer's Guide by extracts from Dyer and Dickinson):

Large main objectives means brighter images, but for most people is a 50 mm lens offers a practical limit to the handheld. Binoculars with a 7 mm exit pupil are easier to get in front of the eye position, an advantage for young people and beginners of all ages to correct.

TopMagnification means better resolution, but it also means the highest standards of optical quality to produce good pictures. It also leads to an increase in shaking in portable mode. This factor alone limits for handheld 10x magnification binoculars for astronomical observations.

All together they are the most common sizes 7x50 and 10x50. If you like smaller and lighter, go for the 7x42 and 8x42. Why not go for the 10x50s, since the largest is called the best? Now that the objectives andObservation with a telescope at night is much easier for some than others. In our experience, are much easier to use 7x50s. On the other hand, made 10x50s weaker stars and the moon and the sky covered in more detail. More specifically it makes sense, but because they are dimmer stars more clearly? Part of the reason for this is that by avoiding the exit pupil smaller edge-of-eye aberrations (which produces crisp stars) helps, but most of all is that the higher magnification, in fact, spreading from the sky in the background, obscuring thein the process.

Binoculars with roof prisms are more compact than Porro smaller than 42 and usually are more expensive. For general astronomy binoculars at a reasonable price, we recommend Porro 7x50 and 10x50 models

General recommendations for glasses Astronomy:

These two differ is in the range $ 200: Orion Vista 10x50 and 10x50 Celestron Ultima. Both are 27 ounces (exceptionally easy for binoculars 50mm) and a very sharp and a good range of 5.3 degreesInterocular distance. In the range of $ 100 is the Bausch & Lomb Legacy 7x50 and 10x50 binoculars ideal for beginners in astronomy. A lightweight tripod and L-adapter are a great addition to an update. Go enjoy your night sky!

Astronomy homeschool on a budget

Bedroom Vanities Buy Online Brand New Timex Heart Rate Monitor Circulon Pans Discount

Monday, September 5, 2011

Telescopes - How to Select a Spotting Scope

!9# Telescopes - How to Select a Spotting Scope

[if ]

[endif]

Welcome to the understanding of a telescope. This wonderful device has been specially developed for daily use to increase your enjoyment outdoors and wildlife viewing. This tool allows you to remotely wildlife in their natural environment to enjoy. Enjoy the beauty of undisturbed and learn more about their unique habits.

A telescope is an abridged version of a telescope to be used in daylight. Its smaller size allows greater flexibility and portability. It differswith a telescope, as it always produces a vertical image. It 'was designed to be mounted on a standard tripod or one of the media window. Enjoy a need for more magnification binoculars so you can see objects at a greater distance. For our hunter, a telescope is a great tool for the evaluation of your goals on the shooting range.

We wish you a basic understanding of the numbers of your telescope is labeled. Here you will find three numbersconnected to the same extent. The first two numbers indicate the magnification. For example, a reading area is a 18-36x50 zoom range of 18 to 36 The last number is the diameter of the front lens. The 18-36x50, it would be the size of the 50mm objective lens. The bigger your goal, the more detail you can see from your perspective.

Most telescopes are refractors, which means that using a prism to rotate the image right and correct from left to right.There are two types of prisms are available: Porro prism and roof prism. Porro prisms are by far the most popular, because they are cheaper to produce and easier. A roof prism allows the producer of a sleek, compact design, therefore, to improve portability to produce. There is a wide variance in performance capability between low quality and high-quality spotting scope purchase, so according to your needs. It will certainly be able to notice the difference inQuality.

We hope that this information can be found in the decision to support what the telescope for sale and we will continue to keep us updated with future articles on understanding your telescope.

Telescopes - How to Select a Spotting Scope

Teeter Ep-950 Best Quality !9# Get SLR Camera Cheap Kingsdown Mattresses Purchase

Friday, September 2, 2011

Physics IB - IA Example: data collection and processing

!9# Physics IB - IA Example: data collection and processing

[if ]

[endif]

For those who have difficulty writing their internships, this article allows for data collection and processing component to write a physics IB explain practical.

In principle, the practical calculations of the dynamics involved is allowed with the help of a machine, collisions with minimal friction. The objective was to examine the law of conservation of momentum.

Below is an example of this practice:

Data collection and processing:

Qualitative observations:

It 'wasnoticed that the metal ramp would be a bit 'after each shot and that if the ramp was adjusted heated, the plane because of the movement that changes shape metal. By adjusting the slider at the bottom of the ramp, the height can move the ramp so that the ramp approximately parallel to the ground, but as a vocation, railways, planes are likely to be influenced by the effects of gravity on the sides of the ramp. This would increase the uncertainties of this experiment, because theEffects of gravity would have taken hours.

Moreover, it records the acceleration of the infrared light SAILING readings during two distinct periods. The screen consists of two metal parts, which block infrared light and the time is blocked by the machine is used to calculate the acceleration. However, the two pieces of metal can reflect light and give back a part of the natural light in the room have on the reader. This may have added to the uncertaintyexperiment.

If the ramp has been set, so it was horizontal and the plane was placed in the middle, the plane rocked back and forth. The air rising from the holes of the ramp would push the brush against the edge of the wing and rear. Then push the air behind the shield against the edge of the wing and the brush.

After the collision of two gliders, it was found that the terminal velocity gliders' (separation after the collision) was similartheir initial velocity (before the collision). This indicates that the value should be the last trip similar to the value of the first lap.

After the string was cut between the slides, causing the magnetic force of repulsion between the magnets attached to them, go in different directions. It was found that the plane was heavier than the lightest shade slower. This is the same for the dynamism necessary (and as well as their directionsvice versa), since p = mv. If m is larger, v must be smaller to be the same for both p for gliders.

Raw data:

Note: The units are in SI units are converted to proper treatment.

There were two gliders, gliders A and B. A glider glider had a mass of 261G. Glider B had a mass of 309g. Let the uncertainty of half of the body, because the scales used to measure only possible up to 1 gram

A glider is always first and always on the left side Glider Bon the right side first. Let the direction of the velocity on the right side must be positive.

The uncertainty of the mass of each glider is + / - 0.5 grams, since the scale can be measured with precision at this level. 0.05 mm-1 - The uncertainty of the initial velocity and final would, in theory, be + /. This will be recorded in the raw data.

However, there are more uncertainties in this measurement is involved. It is not possible for the slope of the ramp, perfectly horizontal, soGravity has no effect. In addition, the air rising from the holes would also measure a few changes. The light reflecting off the metal plates can also influence the outcome. In addition, the recorder speed of light calculated from the length of the plates. The length of these plates is 100 mm + / - 0.5 mm. So there is much uncertainty over + /-0.05mms-1.

The uncertainty can not be quantified, but that would mean that the data can not be determined at 4significant digits. A rough estimate of the uncertainty will be 5mm-1. This is half the final digit of a measurement to 3 significant figures.

The correct number of significant digits will be used the processed data. For now, it will be left with four significant figures, since the raw data.

Experiment collision

Glider

Fair + / -0.05 (g)

u + / -5 (mms-1)

v+ / -5 (Mms-1)

261

1493

-836.0

309

-1186

780.0

Experiment magnetic repulsion

Glider

Fair + / -0.05 (g)

u + / -5 (mms-1)

v + / -5 (mms-1)

261

0.000

-280.0

309

0.000

230.0

Data processed: The data will now be converted to SI units and their uncertainties.

The mass of raw data must be converted to kilograms. Thus, the uncertainty isby + /-0.0005kg.

The speed of the raw data will be converted to ms-1. This will be only three significant digits, as explained above and the uncertainty is 0.005 ms-1.

Experiment collision

Glider

Fair + / -0.0005 (kg)

u + / -0005 (ms-1)

v + / -0005 (ms-1)

0.261

1.49

-0.836

0.309

-1.19

0.780

Magnetic RepulsionExperiment

Glider

Fair + / -0.0005 (kg)

u + / -0005 (ms-1)

v + / -0005 (ms-1)

0.261

0.000

-0.280

0.309

0.000

0.230

Momentum calculation:

Let A be the mass of the sail and its initial velocity uA mA and VA Let UB be its final speed and its top speed will be the mass of the BB B mB glider and its initial velocity

Be the first sweep of the screen of a PIA and his last race pfa. Leave the firstB PiB dynamic momentum of the sail and pfb are final.

Collision experiment:

pia = 1.49 = 0.389 = 0.261x Maua Ns

The uncertainty can be calculated by adding the uncertainties of the masses and the initial velocity:

Relative error = 0.002 mass = 0.0005/0.261 relative error of the initial velocity = 0.005/1.49 = 0.003 Total relative error = 0.005 or 0.5% absolute error = 0.005 x 0.389 = 0.002

Sun pious = 0.39 + / - 0.002 Ns

Using the same method, theother values of momentum, and their absolute error can be calculated:

MAVA PFA = = (0.261 + / -0.0005) x (-0.836 + / -0.005) = - 0.22 + / - 0.002 Ns

PIB Mbube = = (0.309 + / -0.0005) x (-1.19 + / -0.005) = - 0.36 + / - 0.002 Ns

pfb mBvB = = (0.309 + / -0.0005) x (0.780 + / -0.005) = 0.24 + / - 0.002 Ns

Experiment magnetic repulsion:

Since UA and UB are both equal to 0, the first sweep of the A and B glider glider is equal to mu = 0 This is because most ex 0 = 0

PFA =MAVA = (0.261 + / -0.0005) x (-0.280 + / -0.005) =- 0.07 + / - 0.001 Ns

pfb mBvB = = (0.309 + / -0.0005) x (0.230 + / -0.005) = 0.07 + / - 0.002 Ns

Physics IB - IA Example: data collection and processing

Powered Subwoofers Discount Cheaper Brother Mfc9840cdw Organic Baby Sleepers Save You Money!

Friday, August 12, 2011

The Thomson Freeview Recorder 500 GB

!9# The Thomson Freeview Recorder 500 GB

[if ]

[endif]

"If you are looking for updated information on Thomson 500GB Freeview recorder, then pull out a chair and buckle, because this is the item you're looking for."

There is no shortage on the market with DVB-T boxes of all shapes, sizes and functions, but what is one that allows not just two record two programs simultaneously, but take a pause and rewind live TV facility?

The last offers of ThomsonYou can not just watch programs in HD quality, but you can record two different channels simultaneously, because the machines twin tuners.

The 500GB Freeview Recorder PVR Thomson Plus dual tuner not only allows more than one channel simultaneously record, but also has a large 500 GB hard drive, allowing you to tons of their shows and movies without registration technical problem on the space for future recordings.

In the currentCurrently there are an additional bonus in the way, 1 month free subscription to Sky Sports 1 Sports and ESPN as a Top Up TV, so this is a lovely gift for lovers of this sport.

If you are from a company like Thomson with a company that has to do, are at the forefront of innovative products and pioneers in their field and always offer high quality products and there is also peace of mind with an excellent payment plan place and 30 days with no quibbleMoney Back Guarantee.

If you're buying a new box DVB-T in the near future, then thought, if this great product from Thomson for you to seriously consider, not only for its low price, but also for the various machine functions and features excellent .

The Thomson Freeview Recorder 500 GB

Promotional Merillat Cabinets

Tuesday, August 9, 2011

Moons Astronomy - Astronomy Moon - 20 2010 with baronial C8

!9# Moons Astronomy - Astronomy Moon - 20 2010 with baronial C8

A Aperçu de mon premier album de sérieux de la Lune photos réalisé avec Mon nouveau the telescope C8 HD EDGE MEGCs. La Lune dans le ciel était très low, les résultats seront quand les meilleurs seront more favorable conditions. Ceci, but the video preview east également, en plus interest Ajoutee seront rapidement. Pour voir ces images dans leur format original, il faut consulter la page web de l'album: the first serious astro52.com This video shows I did my albumnew telescope, Edge, C8-CDEM HD. The conditions were not very good, because the moon was very low. The results will be better in better conditions. To see these pictures in their real size, simply visit the website of this album: astro52.com

Moons Astronomy - Astronomy Moon - 20 2010 with baronial C8

Lowest Price Fitted Cloth Diapers Cheap Oxo Garlic Press Cooking Pans Review

Thursday, August 4, 2011

Celestron EdgeHD 800 Schmidt-Cassegrain Optical Tube

!9# Celestron EdgeHD 800 Schmidt-Cassegrain Optical Tube

Brand : Celestron | Rate :

| Price : $1,169.00
Post Date : Aug 05, 2011 03:05:01 | Usually ships in 3-5 weeks

Celestron EdgeHD 800 Schmidt-Cassegrain Optical Tube

8" aperture aplanatic Schmidt-Cassegrain telescope produces astrograph-quality flat focal plane
EdgeHD coma-free optics and a built-in field flattener ensures sharp focus all the way to the edge of the telescope's field of view
Flexible tension clutches hold the mirror in place and reduce image shift when rotating the tube around a mount
Cooling vents located on the rear cell allow hot air to be released from behind the primary mirror
All Celestron EdgeHD telescope optical tubes are Fastar compatible for imaging down to f/2 with optional accessories