Facebook eyes up solar-powered drones, to blanket the world with internet access

Facebook, with the thinly veiled veneer of “bringing internet access to the underconnected,” is looking to acquire Titan Aerospace — an American maker of high-altitude UAVs (drones). The idea is that these Titan drones would be used to connect the 5 billion or so people who don’t yet have reliable internet access — a philanthropic act on the face of it, but when you consider that Facebook’s entire business model is predicated on continued growth, and that almost everyone in the world with an internet connection already has a Facebook account, you can see that this is more about self-preservation than humanitarianism.


Titan Aerospace has two products, the Solara 50 and Solara 60, which the company refers to as “atmospheric satellites.” They seem to be functionally identical, except the Solara 60 can carry a larger payload. Both aircraft are powered by a large number of solar cells, allowing them to ascend to 65,000 feet (almost 20 kilometers), and then circle over a specific region for up to five years (presumably that’s the lifetime of the on-board lithium-ion batteries, which are required for night-time operation). The high altitude is important: The FAA only regulates airspace up to 60,000 feet — above that, pretty much anything goes.

Once these atmospheric satellites are up there, there’s a wide range of possible applications. Facebook is obviously interested in internet connectivity, but mapping, meteorology, global positioning, rapid response to disasters and wildfires, and a whole slew of other scientific and military applications are also possible.  


As for what level of connectivity Facebook hopes to provide with these drones, it’s too early to say. TechCrunch reports that Facebook, which is looking to acquire Titan for $60 million, would launch 11,000 Solara 60 drones. Their coverage would begin with Africa, and then spread out from there. There’s no word on how fast these connections might be, nor how much such a connection would cost the end user. Perhaps more importantly, there’s also no word on how Facebook intends to connect these 11,000 satellites to the internet. Facebook will need to build a lot of ground stations, perhaps in very remote and very hard to administer areas, and then run fiber to hook them up to the internet. And yes, in case you were wondering, this effort appears to be very similar to Google’s Project Loon — which is essentially the same thing, but using big balloons instead of winged aircraft.



It’s worth pointing out that Titan hasn’t yet produced a commercial UAV. “Technology demonstrations” have been flown (probably much smaller prototypes), and “initial commercial operations” will start sometime in 2015. Perhaps this is why Facebook is only paying $60 million for Titan, rather than the $19 billion it paid for WhatsApp.
While bringing internet access to the underconnected masses is really quite a noble undertaking, don’t ever mistake this for an altruistic act. One of Facebook’s most pressing problems is how to grow its user base. Almost everyone who has an internet connection already has a Facebook account (or uses one of its national competitors, like Russia’s VKontakte). If Facebook doesn’t continue to grow, and doesn’t miraculously stumble across some way to make more money (its ads aren’t doing very well), the stock market will react very poorly indeed. Facebook is almost a victim of its own success — it got so big so quickly that it’s virtually impossible to continue the same growth trajectory. Acquiring Instagram and WhatsApp were a savvy moves to bring in a few hundred million more users, but ultimately they were nothing more than stopgap measures. Bringing the next billion users online and into Facebook’s gribbly mandibles will be a very hard task indeed




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Ubuntu 14.04 final beta download: A much-needed upgrade for LTS users


The next version of the world’s preeminent Linux distro, Ubuntu 14.04 LTS, is almost upon us. Late last night, the final beta of 14.04 Trusty Tahr (an African wild goat) was released, with the final build due on April 17. Trusty Tahr is the first long-term support (LTS) build of Ubuntu in two years, and is thus contains a lot of exciting features that thousands (millions?) of Ubuntu 12.04 users can’t wait to get their hands on.
Because Trusty is an LTS, most of the changes are fairly conservative in nature. Unity 7 is still there. Mir, the new graphics stack being developed by Canonical that is due to eventually replace the X Window System, is still a long way off. Despite Canonical’sShuttleworth saying that Ubuntu 14.04 would include the Touch/Mobile, it appears they won’t make it into the final build. (Canonical has revised its estimate for the first Ubuntu smartphones to the third quarter of 2014, so there’s still a little time to polish things up.) For the big changes, you’ll be waiting for Ubuntu 14.10 (or likely even later for Mir).
Look at those beautiful borderless windows and rounded corners!

So, what is new in Ubuntu 14.04? There is finally the option for locally integrated menus (LIM) in an app’s title bar, instead of forcing the app’s menu to appear at the top of the screen (enable it in the new Unity Control Center). There’s a new Unity lock screen. You now have the option of minimizing apps from the launcher (and launcher icons can be made much smaller, too). Windows are now completely borderless, rather than bounded by a one-pixel black line. The shift from Compiz to GTK3 means window corners are now antialiased — oh, and resizing windows in Ubuntu 14.04 now occurs in real time.
Moving down the list of importance: Ubuntu 14.04 also improves support for high-resolution displays, TRIM is enabled by default for Intel and Samsung SSDs, Nvidia Optimus support is improved, and you can pump the system volume up above 100%. All of the default applications have been updated to their latest stable versions (Firefox 28, LibreOffice 4.2.3, Nautilus 3.10.1, etc.), and it rocks Linux kernel 3.13.
This video from WepUpd8 shows most of Ubuntu 14.04′s new features, but be sure to turn your sound down before pressing play.
                                
Overall, Ubuntu 14.04 is a surprisingly pleasant operating system. It feels very polished, especially for a Linux distro. If you’ve been using 12.04 for the last couple of years, 14.04 will feel like a sizable step up. The question, though, is whether Canonical should even be putting much time into desktop builds of Ubuntu — the desktop PC is undoubtedly on its way out, and I’m not entirely sure what role Canonical can play on other form factors. It might be able to gain some traction on TVs, but I’m fairly certain that mobile has already been sewn up tight by Android (also a Linux distro) and iOS. (I’m looking at you too, Firefox OS.)
Download Ubuntu 14.04 Trusty Tahr. For the first time, every flavor of Ubuntu 14.04 (Desktop, Server, Edubuntu, Lubuntu, etc.) has been approved for LTS status, meaning they’ll all be supported for a minimum of three years, and some of them will be supported for five.
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With the death of Windows XP, now is the perfect time to switch to Linux

If you're one of the few hundred million people that are still using Windows XP, I have a suggestion for you: It’s time to switch to make the switch to Linux. With the official retirement of Windows XP, the release of Ubuntu 14.04 LTS, and surprisingly healthy software and gaming ecosystems (yay, Steam!), there has never been a better time to switch to Linux. Linux will also run very well on any old, Windows XP-era hardware that you might still be using, too — and if you're anxious that you’ll be filled with switchers remorse after nuking your Windows installation, don't worry: dual-booting is a cinch as well.

Why switch to Linux?

As you've no doubt heard over the years from writers and enthusiasts far beardier than I, there are all sorts of reasons for switching to Linux, from financial to ideological to functional, and everything in between. For some tasks, Linux is far superior to Windows. More importantly, though, there are many tasks where Windows isn’t significantly better than Linux — such as surfing the web (Chrome for Ubuntu is the same as Chrome for Windows or OS X). Even for gaming, Linux is definitely catching up with Windows, thanks to Steam and the Source engine. (The big exception is big-budget FPSes, where Linux definitely falls flat).

Linux is great for reviving your old Windows XP beige box
Really, a better question to ask is why shouldn't I switch to Linux? If you need to use Microsoft Office, or one of Adobe’s multimedia apps, you should stick with Windows or OS X. If need a very Windows-specific tool, like Visual Studio, then Linux isn't for you. If you want to play the latest and greatest PC games on release day, then you really need to use Windows.
For most everyday tasks, thanks to advanced browsers like Chrome and Firefox, and the maturity of web apps like Gmail and Google Docs, you may be surprised by how proficient a modern Linux distro is.

How do you switch to Linux?

Most modern Linux distributions make it fairly easy to switch from Windows. Wubi lets you install Ubuntu in a dual-boot configuration from Windows. For most other distros, such asLinux Mint or Debian, it’s mostly a matter of grabbing the correct 32-bit or 64-bit ISO, burning it to a CD or USB stick, and rebooting your PC. (How to do that is beyond the scope of this story, but Google will give you a dozen easy-to-follow guides.)
To begin with, make sure you install Linux in a dual-boot configuration. That way, if you’re struck by switchers remorse, or you suddenly remember that you need to use an app that’s only available in Windows, you can simply reboot.
Depending on your hardware setup, installing and running Linux for the first time can be a bit tricky as well. A modern distro like Ubuntu 14.04 supports most hardware under the sun, but you may have trouble with older hardware or extreme outliers. Bear in mind that hardware makers focus their efforts on Windows and OS X drivers, relegating Linux drivers to a distant third place. Things like mice and keyboards and external hard drives should be fine — but you might have issues with your monitor calibration gizmo or USB audio breakout box.
Unfortunately, the only real way to find out if Linux has any issues with your computer is to install it (most distros install fairly quickly, though).
Fortunately, if you are having issues with a device after installing Linux, you can normally find very good support online. Linux support isn't quite at the same omg-500-search-results-for-a-really-obscure-bug level as Windows, but it’s pretty good.
Steam for Linux, on Ubuntu

What should you do after installing Linux?

I won’t lie: Switching to Linux from Windows XP (or indeed any other operating system) will be a fairly harsh experience. Modern Linux distros are much better than they used to be, but there are still a lot of rough edges that you won’t notice until they’ve stabbed you in the ankle. In my opinion, the best thing you can do after installing Linux is to use it. Don’t fall for the usual trap: Don’t run back to Windows with your tail between your legs the first time Linux throws an error in your face. Stick with Linux, and you might just find that you like it.
Here are a few more tips for making the switch to Linux:
  • Install Steam, and then buy some Linux games. You will be surprised at the number of good and half-decent games that are now available for Linux through Steam, including FTL: Faster than LightDota 2Europa Universalis IV, and all the usual Source engine games. Through Wine and Cygwin emulation, other older Windows games are available to you as well.
  • Read an Ubuntu guide. One of the biggest issues with switching to Linux is not knowing how to perform basic tasks, such as watching a video. The Getting Started guide, produced by the Ubuntu Manual team, is pretty good (you don’t need to read the whole thing, but the table of contents makes for a useful reference). Always remember that googling for “how do you do X in Ubuntu” will usually turn up a ton of results.
  • Finally learn to use the command line. Linux, at its heart, is a command-line based operating system. The Linux command line is incredibly powerful; there’s almost nothing you can’t do, and in many cases it’s the best or fastest way to do something. Ubuntu’s official Using The Terminal guide is a pretty good starting point. You will love apt-get.
If you have your own tips for switching to Linux from Windows, be sure to share them in the comments. Alternatively, if you think that Linux still isn’t ready for an influx of ex-Windows XP users, be sure to let us know as well.
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how to block adult content in google only by using some simple trick

let me say some uses of blocking adult content . . .

i will say about my real life experience.my aunt is haveing a 4 years kid.once me and the small kid was watching some funny videos in youtube suddenly a video of a girl with out a top or easily i can say a nude video was in the list.

then the kid asked me that who is she and why is she without a dress on her... my face is blanked out what to say to this kid.

also some of the dating sites ads pollute childrens brains while surfing the net ...

in every parents brain there is a question what to do now "what to do now" ???


don't worry about them just follow some simple steps 

steps to remove porn content or porn sites from google search ...

step1:- 

open www.google.com from the device which your kid is useing



step2:-

now type anything in the search box or type  "porn" and press enter .


step3:-

after getting the result goto the top right corner of the page as shown in the image and click on the setting symbol .


step4:-

in the appeared menu click on "turn on SafeSearch".it will reload the page.



step5:-

then again goto setting and open search settings as shown below


step6:-

a page appears in front of u in it click on "lock safe search " as shown in the image'


1:- click on the check box as shown above.

2:-click on the "lock safesearch" link and directs to another page.

step7:-


now type u r email id and password in the sign in page.

after
enter your email id and password and press sign in.(note:-don't use the email id of u r children or don't mention u r password to the 1 who was using it bcoz if they know it they can easily sign out and sign in b4 u know).

step8:-

now in the opened page click on lock safesearch button which is show in the image below.

after locking it will display a msg as this.



now once again type the word porn to check the safe search is working or not.

if it is working u can see the search page as below.



congrats u had locked all the adult content safely.
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