Tuesday, December 31, 2013

Best of Computer Tips and Tutorials for 2013

best of computer tips and tutorials 2013 openhow
2013 was a great year for information technology. Only few hours before the end of this year I’ve decided to share with you our best tutorials and articles that we’ve published during 2013 on different categories such as Software, Internet, Computers, Mobile, Windows, Games… It is also a good way to remember our old but interesting publications. So here is the Best of OpenHow publications of the year 2013:



Best of “Internet” Articles:


Best of “Mobile” Articles:

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Thursday, December 26, 2013

Wikistream: Monitor the Activity of Wikipedia in Real Time

Wikistream: Monitor the Activity of Wikipedia in Real Time
This is absolutely amazing. We know that Wikipedia gets additions, edits, and deletions all of the time, but without a visualization we just have to assume that’s the case.
Wikistream is a service based on the online encyclopedia Wikipedia. This service allows you to follow live changes on all Wikipedia articles in any language. You can see the user name and the number of characters that has been added or removed from the item.


Wikistream: Monitor the Activity of Wikipedia in Real Time

If you don’t want to see the full global stream of Wikipedia activity, Wikistream lets you choose which country to follow, and lets you toggle which type of information you’d like to see in real-time.
Hopefully wikistream provides a hint of just how active the community is around Wikipedia. wikistream was created to help recognize the level of involvement of folks around the world, who are actively engaged in making Wikipedia the amazing resource that it is.
Visit Wikistream.
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Sunday, December 22, 2013

Catch: a Stop Motion Video made with Google Glass

“Catch” is a stop motion video  combining over 1000 photos made ​​entirely with Google Glass. And the result is more than attractive.
The video tells the story of a man who gets a girl’s number and then immediately smudges a couple of numbers off on his water glass. When he tries to rub the ink in a futile attempt to recover the number, it comes to life!
Catch Stop Motion Video Animation

Catch was created by four animators in NYC . And, in total, this “surreal moment on a Sunday morning” took them over 1000 photos and drawings and four days of shooting to go from imagination to reality.

CATCH : A Handimation through Google Glass

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Thursday, December 19, 2013

How to Make Free Calls Worldwide using your phone number

How to Make Free Calls Worldwide with your phone number
There are several ways to make unlimited free calls through a DSL line by using free software such as Skype. But today you will learn how to make free calls worldwide using your phone number.

Rebtel is a Swedish company based in London that offers a free international call service via Internet. Unlike the service provided by Skype, with Rebtel you can use your own phone number to make free calls anywhere, including USA, France, Belgium, the United Kingdom and Canada.

How to make free calls with Rebtel ?

Rebtel offers a unique free calling service that works on all phones. No matter if you have a smartphone, a landline or a computer, you can make free calls at any time! All you have to do is:
  • Create an account on Rebtel.
  • Download Rebtel for Iphone, Android, or Windows.
  • Enter your friend’s name and his phone number in international format - they will give you a unique local number for each of your friends.
  • Use your regular phone to call the local Rebtel number that they gave you.
You can also use Rebtel to call anyone that have this application installed (works like Skype)

Note! Rebtel offers 5 minutes of free calls on registration, and you will get $5 (€4 or £4) for everyone you referred and makes a payment.
How to Make Free Calls Worldwide using your phone number

How does it work?

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Friday, December 13, 2013

Learn How To Type Faster on a Keyboard

Learn How To Type Faster on a Keyboard
Most of us use two fingers of each hand to type on a keyboard, in this tutorial you will learn how to type faster on a keyboard. You will memories every key on the keyboard, you will type faster while looking at the screen by using the correct fingers, and gain speed.
Typing faster can enable you to keep up with your brain; that little voice in your head that has great ideas might only last for a few seconds before it’s forgotten.

Use All your fingers while typing:

Most people have the bad habit of typing with two fingers only, while they can use 10. If you take a closer look at your keyboard, you’ll notice raised bumps on each of the F key and J key. This is to help you find the correct finger placement without having to look at the keyboard.
Place your fingertips on your keyboard, as in the picture. This is the basic position for touch typing. You can find this position without even looking at the keyboard (feel the bumps). You can be fast without this position but you will not exceed 30 words/min, while with your 10 fingers, you can reach the speed of 180 words/min and more.
Learn How To Type Faster on a Keyboard

Learn to type faster without looking at the keyboard:

After you get the right position, familiarize yourself with the keyboard, many websites can help you for this step, websites as Keybr.comTouch Typing Study, or many others… I personally used sense-lang.org. As a beginner, this website will help you to memories every letter on the keyboard. When you get to lesson 16, you will be typing words and sentences that have meaning. Typing sentences that have meaning is very important for you to be successful !
By practicing 30-60 minutes a day, after one week, you should be able to type 40 words per minute without looking to the keyboard. And this is only the beginning.
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Tuesday, December 10, 2013

Camera Size: Compare the size of digital cameras

Thinking of buying a digital camera for your next vacation? Here is a online service that will help you easily view the different sizes of cameras. While many tools exist to compare technical characteristics, Camera Size lets you know the size of each camera.
camera size comparison openhow

Camera Size is a user-friendly web application that displays the exact dimensions of digital cameras to better compare. Operation is easy, just choose the two cameras that you want to compare from the drop-down list, and you’ll get the photo and the size of each camera.
sidebar camera size openhow

The menu on the left sidebar allows you to choose the orientation of the camera (on supported models). You can rotate the camera left, right, top, front or back.

At the right side you can see an image of a regular AA Battery, which gives you an option to visualize the size of the camera. If that’s not enough, you can initialize a helper image of an average human male hand by clicking on the “Show hand”. You can drag this image around and position it under each camera and better visualize the size of the camera.

camera size comparison tool.

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Monday, December 9, 2013

How to Test your vision online

Are you working daily on your computer and you want to test your eyesight?
ThinkQuest is an online tool to test your vision at home for free. This allows you to test your eyesight through a succession of letters becoming small. A bit like a doctor!
test vision Eyesight test online

To take this test the application will ask you to choose the size of your monitor (you must have either a 15″, 17″, or 19″ monitor), and your screen resolution, to measure out the correct length that you should sit back at (the length will vary depending on your screen size and resolution).
Now read the row of letters on the screen and press “next” to display more rows in decreasing sizes. When you can no longer read more than half the words on a line, press “stop” and you will get the result.
Of course this self eye test is no substitute for visiting your doctor but if you follow the steps well, you may get some idea about how good (or bad) your vision is.

Test your eyesight online with ThinkQuest.

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Friday, December 6, 2013

ZenMate: Chrome extension for Free VPN with easy location switching

In a previous post we've learned What is a VPN and How does it work ? VPN is a network technology that creates a secure network connection over a public network such as the Internet.

ZenMate is a free extension for Google Chrome that will allow you to get a free VPN. A service that lets you connect anonymously and access sites that are blocked or censored in your country! Unlike other Chrome extensions – which are usually regular proxies without encryption - ZenMate will encrypt your browser traffic and build a secure tunnel around the data you send or receive. Your IP is hidden, your Internet unrestricted and your privacy protected.

ZenMate change ip location openhow



How to use ZenMate and Change your IP:

Once you have installed this extension, a shield icon appears on the top right of your browser and you will be redirected to a new page that will ask you to enter you email to activate ZenMate. Then you will have a message saying that they “have sent you an eMail with your account credentials but you’re already signed in and can surf the web protected right away!”.

To access settings just click on the shield icon on the top right of your browser, to turn ON/OFF the service, (ON: the color of the shield turns green), you can even choose your location by clicking on “Change location”. ZenMate secure your connection and lets you access restricted content that only works in some countries such as Hulu.com or Pandora.com which only works in the USA, by changing the IP address location.

Download ZenMate for Google Chrome for free.



Note! The VPN is NOT a way to increase its anonymity for prohibited practices. A VPN does not make you completely anonymous and invisible !. It’s a way to protect your Internet privacy. 
Also Check:
FREE Serial Number for Steganos VPN
What is a VPN and How Does it Work
Get Nord VPN Premium for FREE
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Wednesday, December 4, 2013

How to disconnect from Facebook Messenger on Android

On Android phones, many people already want to be connected to Facebook! Whether out of curiosity or because you are addicted to the famous social network. But the official Facebook application (Facebook for Android on the Market) may have a simple problem for some users : how to disconnect ?If you experience this problem, here is how to disconnect from Facebook Messenger, just follow those simple steps:
  • Close “Facebook Messenger”.
  • Go to “Settings” from the phone menu.
  • Click on “Apps” and find “Messenger”, then click on it to show “app info”.
  • Now click on “Clear data”. This will remove all saved settings and password for this application.
That’s it, now you’re disconnected from Facebook, and Yes, it’s that simple!


How to disconnect from Facebook Messenger on Android-openhow


Note! I've tried this on different phones and in some cases, this solution may delete the Messenger shortcut from your menu, the shortcut and not the application, if you have this problem, all you have to do is to visit Messenger on Google Play from your phone (you’ll be able to run the application from there, just click “open”), Uninstall the application then re-install it.
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Tuesday, December 3, 2013

100,000 Stars: Explore the Milky Way with Chrome Experiments

Explore the Milky Way with Chrome Experiments
For Google… Earth is no longer sufficient, so the Chrome Experiments team rolled out 100,000 stars a Chrome Experiment that helps you visualize the exact location of 100,000 stars. On this experiment you will have the opportunity to travel across the Milky Way and our solar system !

Now that almost all of our planet has been explored by Google teams, the conquest of space can begin. 100,000 stars is the new project from the Chrome Experiments that will allow you to visit our vast Milky Way. By zooming to the center of the galaxy, you will see a spatial map with names of all its stars. If you click on one of them, a short description from Wikipedia will be displayed. A very interesting description, you will learn more about the origins of the star and its history.

Do you like this Experiment? Here you can get more Chrome Experiments.
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Monday, December 2, 2013

Amazon Prime Air: Drones to deliver orders from Amazon

Amazon has just announced its Prime Air project: a drone delivery to reach the customer in less than 30 minutes.
The announcement was made ​​last night on the CBS TV channel by Jeff Bezos, the founder and CEO of Amazon. The goal of this new delivery system is to get packages into customers’ hands in 30 minutes or less using Unmanned Aerial Vehicles (Drones).

These mini-drones with electric motors, have arange of 10 miles (16 km), around warehouses, which gives access to a large part of the urban population. The company says that everything is ready, but that the agreement and the establishment of rules by the FAA (Federal Aviation Administration) is still needed.

Amazon Prime Air project:

Source: Amazon.
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Sunday, December 1, 2013

How to Read your emails offline with Gmail

How to Read your emails offline with Gmail
Reading messages and emails anywhere is the main advantage of a webmail. However an Internet connection is always required… Today we will show you a new trick that will allow you to read and write emails even offline.
Now with Gmail Offline App, it is possible to retrieve your emails, remove those that do not interest you, perform searches, classify, and even answer your emails and write new ones.


How does “Gmail Offline” work?

Gmail Offline is a free Chrome extension that will allow you to view and send emails without internet connection. After first start-up, Gmail Offline will automatically synchronize messages and queued actions anytime Chrome is running and an Internet connection is available. You can then check your inbox at any time. To write an e-mail, the process is the same, just write your message offline and it will be sent automatically when you’re connected.
To use this feature, simply install the free Chrome extension on your browser and configure your Gmail account to allow offline access to your mail.
Note! Do not forget to check “Allow offline mail” during the installation process.
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Saturday, November 30, 2013

How to Find your Lost or Stolen Camera with Camera Trace

Find your Lost or Stolen Camera
A picture contains much more information than you might think. In its properties, EXIF tab includes a wealth of information: the settings of the camera during shooting, capture date, ISO, … And especially the serial number of the device. This last information allows Camera Trace locate the lost or stolen camera. If a photo taken with your device surfaced in the database, you will be notified by mail. Camera Trace also proposes to make the necessary arrangements with the police if necessary.

Today, Camera Trace recorded more than 11 million devices and over 300 different models of cameras and scans photos on popular photo sharing sites (like Flickr and 500px) and extracts the serial numbers from them if available.
Camera Trace is a useful tool to find your lost/stolen camera, however, the service is not free, you have to pay 10$ to register the serial number of your device in the database of Camera Trace.

Find your missing camera with Camera Trace.

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Friday, November 29, 2013

What is a VPN and How Does it Work ?

What is a VPN and How Does it Work ?
VPN (virtual private network) is a network technology that creates a secure network connection over a public network such as the Internet. So Users are able to connect to the private network from a public network without sacrificing security concerns.





How do VPN’s work?

A virtual private network is based on a protocol called tunneling protocol, this protocol allows to circulate encrypted data from one end to the other, as if you are connected directly to the local network.

The principle of tunneling is to build a virtual path after identifying the sender and the recipient. Thereafter, the source encrypts the data and forwards it by taking this virtual path. To ensure easy and inexpensive communication, virtual private networks access simulate a private network, when they actually use a shared infrastructure, such as Internet access.
VPN virtual private network

Advantages of VPN:

VPNs have many advantages, they are based on robust encryption technologies and the generation and implementation of encryption keys is under the control of the owner of VPN. The privacy level is very high. 
  • Inexpensive way of building a private network.
  • Easy implementation (no particular skills required for users).
  • Hide/Change your IP address.
  • Security ensured using data encryption.
  • No dependence on the security of your ISP.
  • The relative ease, speed, and flexibility of VPN provisioning in comparison to leased lines.

Disadvantages of VPN:

As any technology, VPN has some potential disadvantages: 
  • Skills required for implementation (for service providers).
  • The lack of Quality of Service (QoS) management over the Internet can cause packet loss and other performance issues.
  • Adverse network conditions that occur outside of the private network is beyond the control of the VPN administrator.
  • Vendor interoperability as VPN technologies from one vendor may not be compatible with VPN technologies from another vendor.
Note! The VPN is NOT a way to increase its anonymity for prohibited practices. A VPN does not make you completely anonymous and invisible !. It’s a way to protect your Internet privacy.
Also Check:
FREE Serial Number for Steganos VPN
Zenmate VPN Chrome Extension for FREE
Get Nord VPN Premium for FREE
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Thursday, November 28, 2013

Nokia Lumia 525 the new Smartphone from Nokia

After BlackBerry Porsche Design, and Samsung Galaxy Grand 2, Nokia has finally announced it’s new smartphone Nokia Lumia 525, the successor of Nokia Lumia 520.
The Lumia 520 looks identical to its predecessor, with the same SoC (Snapdragon S4 dual-core 1 GHz), a 4-inch (800 x 480) display and a 5 megapixel camera, the Lumia 525 is distinguished from the 520 by the amount of on-board RAM, up from 512MB to 1GB, half more gig of RAM means more compatible apps and games to enjoy. Everything should be priced at around $ 200 in the month of December.
The Lumia 525 will be available in 4 colors: black, white, orange, and yellow.

Nokia Lumia 525

Features and Specifications of Nokia Lumia 525:

  • Display size: 4 inch IPS LCD
  • Touch screen technology: Super sensitive touch
  • RAM: 1GB
  • Main camera sensor: 5 MP with 720p video capture
  • Main camera focus type: Auto focus with two-stage capture key
  • Maximum standby time: 14 days
  • Maximum talk time (2G): 16.9 h
  • Maximum talk time (3G): 10.6 h
  • Maximum music playback time: 48 h
  • Processor name: Qualcomm Snapdragon™ S4
  • Processor type: Dual-core 1 GHz
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Wednesday, November 27, 2013

Visit the inside of a submarine with Google Street View

We all knew that Google Street View was able to show us things really unusual but to bring us into a submarine, it took a lot of imagination. The American giant Google has recently posted photos of the British submarine Ocelot.

Take a tour inside the brtish submarine Ocelot:


Ocelot was used by the British Army for various military operations from 1960 to 1990. Now a legend, the submarine is now accessible to all through Streetview.
If  you’ve always wondered what it looks like inside a submarine, Google has always the answer. With Google Street View, you can take a tour and visit the British submarine Ocelot. The company has successfully mapped the control room, couches, kitchens, the torpedo room…

Take a tour inside a submarine.

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Tuesday, November 26, 2013

Samsung Reveals the new Galaxy Grand 2 Smartphone

Yesterday, The leading manufacturer of smartphones, Samsung, revealed the new  Galaxy Grand 2, This model with a 5.25 inch screen display sporting a resolution of 1280 x 720 pixels and a 1.2 GHz quad-core processor. Also, this “phablet” is provided with a RAM 1.5 GB, 8 GB of memory (expandable via microSD), 8 megapixel rear camera with auto-focus and front 1.9 megapixel. Using Android 4.3, the Galaxy Grand 2 is provided with a battery of 2600 mAh which displays up to 17 hours of talk-time.

The big screen makes the Galaxy Grand 2 quite large and a bit heavy, as the device measures 146.8 x 75.3 x 8.9 mm and 163 grams. Available colors include the typical black, pink and white.
Till now Samsung has not revealed the price, places and dates of availability for this device.
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