Dell's Ultra-thin Laptop XPS 14z Price, Review in India, Specifications

Dell XPS 14z:

                        Dell XPS 14z Price in India, Features, Review, Specifications.  Dell's latest light weight 14 inch Ultrathin  Laptop Dell XPS 14z.  it has 14" ( 35.6 cm) FHD wide screen with Led backlit Display.  Second generation Intel Core i5-2450 M Processor, 1 GB NVIDIA GT525M Graphics.

Dell XPS 14z Features and Specifications:

• 500GB SATA hard drive (7200RPM) / Up to 256GB8 Solid State hard drive
• Windows 7 64-Bit
• Silver Anodized Aluminum
• 14.0-inch HD (720p) WLED Display
• Intel Core i5/i7 Processors
• Camera : 2.0MP HD with single digital mic (H.264)
• Weight: Starting weight of 2.43 kg
• 3 total USB 2.0 (2 / 1 eSATA/powershare combo)
• Dell XPS 14z Price - Coming soon.

Humanitarian OSCAR | 2011 Jean Hersholt Humanitarian award winner Oprah Winfrey

     In 2011 TV mogul Oprah Winfrey has been selected for the 2011 Jean Hersholt Humanitarian (Humanitarian OSCAR) Award given by the Academy of Motion Picture Arts and Sciences Governors Awards.  The honour, an Oscar statuette, is bestowed on an individual in the movie industry whose humanitarian efforts have brought credit to show business.  James Earl Jones and  the make-up artist Disk Smith will also be handed Honorary Awards at the third annual Hollywood gala to be held in November 2011.

Fiber Optic Technology | Fiber Optic Technology Overview | Features Of Fiber Optic Technology Features

   Now Everywhere on this Earth hair-thin optical fibers carry vast huge quantities of information from one place to another place. There are so many desirable properties of optical fibers for carrying the information. They have enormous information-carrying capacity, are low cost, and possess immunity from the many disturbances that can afflict electrical wires, wireless communication links. The superiority of optical fibers for carrying information from place to place is leading to their rapidly replacing older technologies. Optical fibers have played a key role in making possible the extraordinary growth in world-wide communications that has occurred in the last 25 years, and are vital in enabling the proliferating use of the Internet.

Light is channeled through these fibers. Not only light but everything associated with light, images for example, also get transmitted from one end of the fiber optic to the other end. Bends and turns in the fibers pose no hindrance in this transmission.  

The core of fiber optic materials is made of glass or plastic and it is highly transparent. This core is covered with a covering known as ‘cladding’. When light enters from one end and travels through the length of the fiber optic, this ‘cladding’ does not allow it to scatter outside the material.

The ‘cladding’ reflects all the light from inside the surface of the fiber optic. So, even if a bundle inside the fiber optic is not straight, the image is not affected. Fiber optics are capable of carrying light and other information over a wide range of distance. The distance may vary from a few centimeters to many hundred kilometers.  

Fiber optics are primarily of two types. The single-mode fiber optic and the Multi-mode fiber optics.

Single Mode Fiber Optic

It is suitable  for transmissions over long distance  that happen at tremendous speed. They are capable of this because their core is very small and they have the property of accepting light only in the direction of the axis of the fibers. Small lasers are used to send light into fibers. The fibers are joined with low-loss connectors so that there is very less distortion of the light signal.

Multi Mode Fiber Optic

In multi-mode fiber optic materials the cores are big and they also can accept light from a variety of angles and can also function with a variety of light sources. The connectors are used within the materials for fiber are not very expensive. It is done because these fiber optic materials are not meant for long distance transmission only short distance transmission.

EYE IN SKY FINDS 17 LOST PYRAMIDS IN EGYPT | PYRAMIDS IN EGYPT

     This is a new satellite survey about Egypt.  Egypt has identified 17 lost pyramids and more than thousand (1,000) un-excavated tombs.  More than 3,000 ancient settlements were also revealed by looking at infra-red images which show up underground of  building.  The US Egyptologist Sarah Parcak's team  analysed images from satellites orbiting 700km above the earth, equipped with cameras so powerful they can pin-point objects less than 1m in diameter on the earth's surface. The Infra-red imaging was used to highlight different materials under the surface of Earth.

SENSITIVE SKIN FOR ROBOTS | Robots with sensitive skin

      The Technical University of Munich (TUM) Scientist, Germany are developing a synthetic (sensitive) skin for robots with a similar to as that of  human skin.  The synthetic skin will provide important tactile information to the robot and thus supplement its perception formed by camara eyes, infrared scanners and gripping hands.  As with human skin, the way artificial skin is touched could, for example, lead to a spontaneous retreat (when  the robot hits an object) or cause the machine to use its eyes for the first time to search for the source of contact.  Such behaviour is expecially important for robotic helpers of people travelling in constantly changing environments. 

    The centrepiece of the new robotic shell is  a five square cm hexagonal plate or circuit board.  Each small circuit board ccontains four infrared sensors that detect anything closer than one cm. "This sensor can register pressure ranging form a firm pinch between your thumb and forefinger to twice the pressure exerted by an elephant standing on one foot.