Do you know you can make call with Whatsapp without paying kobo?

You can do that with NEW UPDATE on Whatsapp Android Application.

There are three Taps available at the Whatsapp home page now- Calls, Chats and Contacts.
1) Click on Calls Tap
2) Click on �� at the Top-right on the screen and the list of availability contacts will be displayed (Only people using Android phone for now)
3) Click on the Contact you want to call and start enjoying free voice communication.

Note: They are neither removing Megabytes (Mb) nor credit for now. But TantoTECH don't know what might happen tomorrow.

Here's another high-speed 3D printer that creates objects in minutes

If Carbon3D's capability to print out objects 25 to 100 times faster than usual is the reason why you can't wait for it to come out, then you'll love this machine, as well. An Australian company has announced that it's also working on a super speedy 3D printer called Gizmo 3D. It creates objects out of liquid resin using a method that prints layers from the top to the bottom without breaks. This occurs within the vat of liquid resin itself: the build plate or the bottom of the vat was designed to slide downward, revealing more of the shape as its moves.

The process makes it look like items are being animated in real life instead of being printed out, as you can see in the video below. It takes the printer only 6 minutes to create an object that measures 5 inches x 3 inches using this technique. Gizmo 3D founder Kobus Toit is keeping the full details of his technology under wraps, though. He wants to wait until his Kickstarter campaign has launched in September to reveal the printer's secrets. When the device does land on the crowd funding website, you'll have to pony up at least $2,500 for the most basic model, or at least $6,000 for the fancier one.

Online petition urges Facebook to remove 'fat' emoji from status updates

A group of body-image activists are circulating an online petition that asks Facebook to remove a "feeling fat" status and emoji from status-update options.

The Change.org petition has amassed more than 14,000 signatures so far, and sparked a debate over whether the social network is promoting body-shaming.

"Feeling fat" currently appears as one of many preset options included in Facebook's drop down list of status updates. Endangered Bodies, the group behind the initiative, want the status and accompanying emoji removed because they believe it encourages body-shaming and "self-destructive thoughts."

"When Facebook users set their status to 'feeling fat,' they are making fun of people who consider themselves to be overweight, which can include many people with eating disorders," according to the petition. "That is not OK. Fat is not a feeling. Fat is a natural part of our bodies, no matter their weight. And all bodies deserve to be respected and cared for."

The two-week-old petition has 14,346 signatures as of this writing, just several hundred short of its 15,000 goal. On Twitter, the hash tag #fatisnotafeeling is also being used by people who are upset by the status option.

In a statement, a Facebook spokesperson told Mashable on Saturday that it offers more than 100 preset feelings based on user input:

People use Facebook to share their feelings with friends and support each other. One option we give people to express themselves is to add a feeling to their posts. You can choose from over 100 feelings we offer based on people’s input or create your own.

The social network provides resources to users who are concerned that a friend may have an eating disorder, in a dedicated help page on the topic. Facebook says it works with the National Eating Disorders Association to provide relevant information.

Instagram's new Layout app creates custom collages

Layout quickly combines multiple photos into a modern collage that you can share with ease.
Instagram wants you to forget all of those other collage apps. Today the company debuted Layout, a standalone app for iOS(Android's coming soon) that lets you create photo collages that you can then share to Instagram or Facebook. You don't even need an Instagram or Facebook account to use it.

Photo collages have already been a common sight on the Facebook-owned, photo-based social network, but you needed to employ an outside app, like Diptic or Photo Grid, to create them. Now Instagram is hoping to edge out those apps and the many others like them with Layout. So far, the app has a lot going for it up front, with a slick design and simple controls. The app also doesn't create any borders between the photos, like other collage apps do, which helps the collages you create with it feel more modern.

Within Layout, you'll see all of the photos in your camera roll, plus two categories for recent photos and faces, where you'll only see pictures of people. It's pretty neat that Layout can pick out photos with faces in them, even if it doesn't always get it perfect.

You select up to nine photos to create your collage, and as you pick photos, the app automatically plugs them into the 10 collage options available. From there, you can pick the layout you want and then tweak it as you wish.

You can move around photos into different spaces, drag the edges of each photo to change its shape or size, and move the photo around in the space to frame the part you want. You can also flip photos horizontally and mirror them to create different effects, like you see above. When you're satisfied with your creation, you can share it out and save it to your phone.

Layout is the second standalone app from Instagram, following Hyperlapse, which shoots time-lapse videos. That app was released in August 2014 for iOS and still hasn't made its way to Android.

Foldable displays from Samsung coming in 2016, LG in 2017

It has been reported in the past that Samsung has been working on a foldable display, and it looks like it’s on track for next year. In fact, some believe we might see them in tablet form by the end of this year.

Samsung isn’t the only company working on such displays as LG is too, but they are targeting 2017.

LG is also spending a considerable amount of resources on transparent displays. These types of display are already in use, but not at the consumer level. Unfortunately no target was set as to when we will see them come to market.

Kids learn to write by teaching robots

In pedagogical research, the concept of learning-by-teaching is a recognized and successful technique. The idea is that kids develop greater interest and confidence in a subject when they take on the role of the teacher and instruct someone else.

Researchers at EPFL in Switzerland have shuttled the concept into the robotic realm with their new CoWriter project, introduced this week at the International Conference on Human-Robot Interaction.

The system, still in prototype phase, uses tablet computers and friendly two-foot tall humanoid robots to help teach grade-school students how to write.

Instead of the robots instructing the kids, however, the kids instruct the robots — who are programmed with progressive writing algorithms that mimic human learning.

It's a kind of educational jujitsu move, of course, because the goal is to teach the kids without them even knowing it. The robots' writing is reproduced on a tablet computer, which the kids can then correct using a stylus. The 'bots draw from a vast database of handwriting samples that incorporate common errors for children in the specified learning range.

The CoWriter pilot program has been tested in primary school classrooms with children from six to eight years old, and also in a separate trial with a six-year-old student getting weekly one-hour teaching sessions.

The long-term objective is to provide an option for educators and parents to use the learning-by-teaching model with a robotic "student" who gradually improves and — perhaps more importantly — never gets tired.

"Essentially, the goal is to provide a tool for teachers that is given a new role in the classroom, that of a student who knows even less than the slowest student in the class," says study co-author Séverin Lemaignan on the EPFL project page.

Pros and Cons of Dell XPS 13 (2015)

Pros
•     Nearly bezel-less display allows it to be more compact than other 13-inchers
•     Vibrant screen, strong audio to match
•     Attractive design, well-built
•     Comfortable keyboard
•     Fast performance
•     Lots of configuration options

Cons
•    Merely average battery life, at least on the touchscreen model
•     Touchpad could use some fine-tuning
•     Doesn't come standard with a touchscreen -- and is expensive if you do opt for that feature

Summary
Other than an update to the touchpad, there's very little we would change about Dell's redesigned XPS 13: It's compact and well-built, with a gorgeous screen, fast performance and surprisingly good audio quality. You'll pay dearly to get it with a touchscreen, but even then, it's priced in line with other flagship Ultrabooks and in some ways it's a better choice, too.

Here's how you pay with an Apple Watch

Apple was quick to tout payment support on the Apple Watch, but how does it work, really? How easily could a thief go on a shopping spree with your timepiece? Don't worry about waiting until the launch to find out, as the company's Eddy Cue has spilled the beans on Apple Pay support a little early. He explains that you have to authenticate using either your fingerprint on the iPhone or a password on the Watch to start spending; after that, you can leave your phone in your pocket. That approval only works so long as the Apple Watch is still on your wrist, though, and you can even force the device to ask for a password every time (you know, in case someone hijacks your arm). In short, Apple, isn't taking any chances -- it wants you to trust that your wristwear is at least as secure as anything else you're carrying

Microsoft sues Kyocera over Android phone patents

Microsoft may be taking some steps to make nice with the Android world, but the company is still willing to pick fights when its royalty payments are at stake. The Windows maker has sued Kyocera in the US over claims that Android phones like the Brigadier and Hydro series violate seven patents on features like location tracking and messaging. While Microsoft says it's hoping things can be "resolved amicably," it's prepared to go nuclear if necessary -- it wants a ban on those phones if Kyocera doesn't cooperate. We've reached out to Kyocera to see how it's responding to the lawsuit. If history is any indication, though, it may be tempted to settle. Microsoft already has most Android manufacturers coughing up royalties, and Kyocera isn't an industry giant with loads of cash to fight back.