Amazon update his kindle its line for his E readers

According to the newspaper of new yorks time the Amazon announced updates to its line of Kindle e-readers, including the Kindle Fire HD, a tablet computer that comes in two sizes, one that is nearly as large as the i Pad and that undercuts its price by $200.

The company also announced the Kindle Paper white, a new version of the black-and-white Kindle that is thinner and turns pages 15 percent quicker than its predecessor. It also has a new high-contrast screen that Amazon says will be easier to read, especially in the dark because it is lighted from the bottom. 

The company now has seven models ranging from a basic $70 black-and-white-screen e-reader to a $600 color tablet. (It also still sells an aging model with a keyboard.)

“We are not building the best tablet at a certain price,” said Jeff Bozos, Amazon’s chief executive, who showed off the new devices at an airport hangar in Santa Monica. “We’re building the best tablet at any price.”

The Kindle Fire HD challenges the i Pad on several fronts. The larger version of the device has an 8.9-inch display, compared with the i Pad 9.7 inches. The new Amazon device also has a front-facing camera that works with the built-in Skype video conferencing software, competing directly with the front-facing camera on the i Pad and Apple’s Face Time video conferencing features. Like the i Pad, the new Kindle Fire offers 16 gigabytes of storage. The larger version of the Kindle Fire HD costs $300; the baseline i Pad costs $500. (Apple sells an older model for $400.) Amazon is also offering a $500 version of the Kindle Fire HD with cellular data connectivity, which is cheaper than Apple’s least expensive i Pad with cellular connectivity, which costs $630. 

 

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Electronic Cotton or Fabric Produce electricity

In the research of University of South Karolina's the researchers says about our fabric. One day our cotton T-shirts and jeans could have more functions they could work as a flexible energy storage device and charge our cell phones and i pad.Researchers have invented transistors made from cotton fibers, producing “electronic cotton!

This is the basic invention in this technology that our fabric is being used as energy storage devices and performed a lot of amazing tasks like our fabric tell us the temperature of atmosphere.

the electric cotton could detect how fast we’re walking across carpet or how we’re affected by our environment (i.e. t-shirts that measure pollutants in the atmosphere). Their main goal is to create “a seamless interface between electronics and textiles.”

The cellulose that makes up cotton already provides natural installation, which makes the fiber conductive, making it the perfect fabric to create an electrical stream through. The researches have already been doing tests where they treat the cotton with a thin layer of conductive polymer (PEDOT). By adding the polymer the cotton becomes a thousand times more conductive than plain cotton, and keeps the mechanical properties untouched.

One of the first tests the researchers did was tie a knotted end of treated cotton to a battery and the other to a LED, and they created an electrical current. Unfortunately the electrons in the cotton fibers aren’t as strong as silicon circuits so we won’t be seeing MP3 clothing anytime soon. Nor will you ever have to worry about feeling the electric charge!

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Why Birds not feel electric shock on wires ?

Birds on electric wires

Most of us see birds sit on the electrical wires and do not feel electric current the simple anwer of this question is this

Current is always flow from high potential to lower potential. When the positive and negative wire are in contact the current flow through it but in case of birds they are sit only in one wire for example if crow sit in wire they have no contact with the ground or neutral wire that’s why they can not complete the electric circuit to flow the current in it. You also see when they touch with the other wire they are die. The reason behind this is that the crow are now in contact with the negative and positive wire that’s why current will flow through it and they are die.

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