Saturday, 25 April 2015

What is Google Cardboard

What is Google Cardboard?
It's simply a design - one you can either buy as a kit from a manufacturer or use to build your own - that utilizes cardboard and a pair of 40mm focal distance lenses to turn your phone into virtual reality headset. It also uses magnets, velcro, and a rubber band to keep everything in place.
Once put together, users set their phone into it and look through the lenses. In combination with compatible apps, this simple setup can turn interacting with your handset's screen into a seemingly real-world experience.

Now, Here's what you need to get started and u can 
make at your home :

1. Cardboard :- Corrugated cardboard sheet, preferably E Flute (corrugated cardboard comes in a variety of thicknesses called "flutes"), available at many art supply stores and online . For best results, you should look for strong, thin cardboard (sturdy shoe box rather than moving box). Minimum size: 8.75in (22cm) by 22in (56cm), and 0.06in (1.5mm) thickness.

2. Lenses :- This is the trickiest component. Lenses that have a 45mm focal distance might work. Biconvex lenses work best because they prevent distortion around the edges. We used the Durovis OpenDive Lens Kit available on Amazon.com

3. Magnets :- One neodymium ring magnet and one ceramic disk magnet - like this or this. Approximate size: 0.75in (19mm) diameter and 0.12in (3mm) thickness.

4. Velcro :- Two strips of regular strength adhesive-backed velcro. Approximate size: 0.75in (20mm) by 1.25in (30mm).

5. Rubber band :- One rubber band, to prevent the phone from sliding out. Minimum length of 3.2in (8cm).

6. NFC tag (optional) :- One sticker NFC tag. Program it with the URL cardboard://v1.0.0

7. You'll also need a ruler, glue, and scissors, an X-acto knife, or access to a laser cutter.

How to make a Google Cardboard VR headset 


Step 1. If you've ever completed an old jigsaw that you've found lying in the loft, you'll know how important it is to make sure you have all the pieces before you begin. In the box you should find two lenses, two magnets, two Velco pads and three pieces of cardboard. You'll need to supply your own Android phone, obviously, which must run Android 4.1 or later and have no larger than a 6in screen.



Step 2. This is the annoying bit. The cardboard has been pre-cut, but the unwanted material has not been removed. You'll need to carefully press out the cutouts without ripping or bending the card. That shouldn't be too difficult, though: it's pretty sturdy.


Step 3. Place the two supplied lenses in the large circular holes (it doesn't matter which way around they go), then fold the cardboard around the front and back to keep them in place. You can use a bit of tape or glue to secure them if necessary.

Step 4. Fold the main piece into shape starting with the section shown in our photo. The circle should face inward, and is used to hold the magnets. Again, you can use glue or tape if you like, but it's not necessary.

Step 5. Now fold this component around the piece with the lenses, with the centre hole facing the front. The small divider piece slots in here to make sure each of your eyes see only the images intended for them.

Step 6. Create an easily opened yet secure compartment for your phone by using the two Velcro pads to fasten the flap to the top of the headset.


Step 7. Next you need to download the Cardboard app from Google Play. It's a large app - 74.63MB - so make sure you both have room on your phone and that you're connected to Wi-Fi.

Step 8. Place your phone inside the Google Cardboard headset so that the camera can be seen through the cutout. It looks as though it won't fit because the divider is in the way, but the Velcro should give you enough wiggle room to secure your phone in place. Note that you might need to take off any case you might be using first.


How to operate Google Cardboard 

With the Google Cardboard app launched and your phone inside the headset, you'll feel it vibrate. You can then look left and right to scroll through the menu - from Tutorial to Tour Guide, Exhibit, Windy Day, Earth, YouTube, Photo Sphere and Street Vue. 
All the apps are cool - we particularly like Windy Day, a cute game in which you have to search the forest for a mouse - but they are relatively limited. For example, with Exhibit you get to look at only one item; in Google Earth you get to explore only one corner of the world; and in Street Vue you don't get to pick your street or where you go.



YouTube is one of the best of the bunch: you look around left and right to see multiple video screens, then stare at one and pull down the magnet to play it. The video will open on what looks like a cinema screen, from which you can look down to select voice search.

Sunday, 19 April 2015

What is Net Neutrality?

What is  Net Neutrality:

N
et neutrality is the principle that data on the Internet is moved blindly and impartially, without regard to content, destination or source.

Net neutrality describes the idea that whoever provides you Internet access—for example, Comcast, Time Warner, Verizon, and so on—should treat all of your Internet traffic, or packets of data, the same way.

In the United States, the U.S. agency responsible with upholding laws related to net neutrality is the Federal Communications Commission (FCC), which is based in Washington, D.C.

Lets take one Example,

Let’s say you use Hulu and Netflix, and often switch between the two to see what’s on. Supporters of net neutrality say that your broadband Internet service provider (ISP) should not be able to charge either Netflix or Hulu, or any other company that depends on the Internet, for a faster connection to you and other customers. Nor should the ISP be able to charge you more to access certain services.

Now in Net neutrality very big issue is Paid prioritization
 Lets see What is Paid Prioritization…….?

The term refers to ISPs charging third party companies for speedier access to those ISPs’ customers. So, say your ISP is Verizon, and you use both Twitter and Facebook. If Twitter pays Verizon to “prioritize” its traffic, and Facebook does not, you would likely experience faster speeds on Twitter: Its pages and apps would load more quickly, and more reliably, than Facebook. (This is what net neutrality supporters are talking about when they discuss “slow lanes” and “fast lanes” on the Internet.)

This arrangement obviously incentivizes both Twitter and Facebook to pay Verizon to prioritize their traffic. But both sites are able to pay Verizon in the first place because they’re already enormous companies, with plenty of money to burn.

And lets know what President Obama  has said:

On , 13 April 2015, in response to a Popular petition
 on WhiteHouse.gov, Obama announced  that he was urging the FCC’s chairman, Tom Wheeler, to implement net neutrality rules by reclassifying ISPs as common carriers.

What happens now?
Obama does not have the authority to change the FCC’s rules, so we may be waiting on any kind of action or decision for the forseeable future. Still, many ISPs are already sounding the alarm about the potential ramifications of Obama’s effort.
“We disagree with the President’s statement that an open Internet can only be achieved by reclassifying broadband as a public utility,” Time Warner Cable CEO Rob Marcus said in a letter echoing his industry’s broader concerns with both Obama’s agenda and the larger debate about net neutrality. Indeed, whatever the FCC decides, and eventually implements, that debate is unlikely to end anytime soon.

And now lets know big update in India is that,
Flipkart CEO Sachin bansal what he had told about Net Neutrality ,

He tweeted saying that when ‘foreign companies’ offer ‘free services’ it is termed as innovation, hinting at the recently introduced Facebook-Reliance Internet.org. The Facebook-Reliance tie-up aims to provide access to popular websites including Facebook with zero data charge across 2G and 3G platforms.
In case of Airtel Zero, this is a programme that will allow app developers who tie-up with the company to allow consumers to access these apps for zero data charge. The app developers, companies will pay Airtel to keep their app usage free. Flipkart is rumoured to be one of the early partners in Airtel Zero.

Flipkart CEO Sachin Bansal defended his company’s decision to tie-up with Airtel, given that they have received a Of  negative reponse in light of the news, especially on social media.