Ee Blog

It's not really hard to find subtitles online for your digital movie collection, but you can save a couple of steps with the VLSub extension for VLC media player.

After downloading the extension from Github, just drop it in the appropriate folder.

• Windows: C:/Program Files/VideoLAN/VLC/lua/extensions/
• OS X: /Applications/VLC.app/Contents/MacOS/share/lua/extensions/
• Linux: ~/.local/share/vlc/lua/extensions/

Recently 802.11ac WiFi devices have started to emerge, but just what is WiFi 802.11ac and How fast is it? 802.11ac is a supercharged version of 802.11n, which is the current WiFi standard, offering link speeds ranging from 433 megabits-per-second (Mbps), through to multiple gigabits per second. To achieve these speeds which are dozens of times faster than 802.11n, 802.11ac works exclusively in the 5GHz band, uses a huge amount of bandwidth (80 or 160MHz) and operates in up to eight spatial streams (MIMO) and a utilizes technology called beamforming.

How 802.11ac works: At its core, 802.11ac is essentially an updated version of 802.11n, which itself introduced some very exciting technologies that brought massive speed boosts over 802.11a and g. Whereas 802.11n had support for four spatial streams (4×4 MIMO) and a channel width of 40MHz, 802.11ac can use eight spatial streams and has channels up to 80MHz wide, which can be combined to make 160MHz channels. Even if everything else remained the same, this means that 802.11n has 8x160MHz of spectral bandwidth to play with, vs. 4x40MHz, this is a huge difference that allows 802.11n to squeeze vast amounts of data across the spectrum.

802.11ac introduces 256-QAM modulation (an increase from 64-QAM in 802.11n), which fits 256 different signals over the same frequency by shifting each signal to a slightly different phase. In theory, this quadruples the spectral efficiency of 802.11ac over 802.11n. Spectral efficiency is a measure of how well a given wireless protocol/modulation/multiplexing technique uses the bandwidth available to it. In the 5GHz band, where channels are fairly wide (20MHz+), spectral efficiency is not so important; in the cellular or mobile bands though, channels are often 5MHz wide, which makes spectral efficiency very important.

802.11ac also introduces standardised beamforming (802.11n was non-standardized, which made interoperability an issue). Beamforming is essentially transmitting radio signals in such a way that they are directed at a specific device. This can increase throughput and also reduce power consumption. Beamforming can be done with smart antennae that physically move to track the device, or by modulating the amplitude and phase of the signals so that they destructively interfere with each other, leaving just a narrow, not-interfered beam. 802.11n uses this second method, which can be implemented by both routers and mobile devices.  Finally, 802.11ac is fully backwards compatible with 802.11n and 802.11g, this means you can buy an 802.11ac router today and it will work with your older WiFi devices.

Just how fast is WiFi 802.11ac?  Well there are two answers: the theoretical max speed that can be achieved in the laboratory, and the practical max speed that we will receive at home or in the office, surrounded by lots of signal altering obstacles.  The theoretical max speed of 802.11ac is eight 160MHz 256-QAM channels, each of which are capable of 866.7Mbps — a total of 6,933Mbps, this is slightly short of 7Gbps. That’s a transfer rate of 900 megabytes per second! which is more than you can squeeze down a SATA 3 link. In the real world, due to channel contention, you probably won’t get more than two or three 160MHz channels, so the max speed comes down to somewhere between 1.7Gbps and 2.5Gbps. Compare this with 802.11n’s max theoretical speed, which was 600Mbps.

Source: http://www.extremetech.com/computing/160837-what-is-802-11ac-and-how-much-faster-than-802-11n-is-it

In a follow up to our recent report regarding how an Android Security Bug was found to let hackers gain system access, Google has released a fix to its Android original equipment manufacturers (OEM’s) for this bug, named: Android security bug 8219321 as unearthed by Bluebox Security in February this year. The flaw was confirmed from Google’s Android Communications Manager, Gina Scigliano, she said “a patch has been provided to our partners.” She also mentioned “Some OEMs, like Samsung, are already shipping the fix to the Android devices.”

The flaw in question will allow a hacker to turn a legitimate app into malicious files by modifying APK code without breaking the app’s cryptographic signature. In response to this, Google has already modified its Play Store’s app entry process to scan for the exploit so apps that have been modified using this vulnerability can no longer be distributed via the Play Store. Bluebox Security discovered the hole in Android’s code, which it claims could potentially affect 99 percent of Android devices, back in February and informed Google at that time. (but only made it public recently). Samsung’s Galaxy S4 was named then as one Android device that had already been patched, so it seems likely that this model is the device Gina Scigliano referred to when she cited Samsung as a manufacturer already shipping a fix. The problem for Android users is that even though Google has now in fact released a fix to its OEMs, they still have to wait for the maker of their particular handset to implement and ship the fix. This also poses another question, how long before their particular carrier tests it? Having to wait around to receive updates is a byproduct of the freeness and fragmentation of the Android sphere, still, it does not sound like this particular Android flaw has been widely exploited thus far. Scigliano has told ZDNet: “We have not seen any evidence of exploitation in Google Play or other app stores via our security scanning tools. Google Play scans for this issue and Verify Apps provides protection for Android users who download apps to their devices outside of Play.” But just because it has not been widely exploited yet, does not mean it will not be…does it?

Source: http://techcrunch.com/2013/07/09/google-plugs-android-hole/

The Stop Online Piracy Act (SOPA) and the Protect IP Act (PIPA) are two bills that sound like they have a mildly positive aim but, in reality, have serious potential to negatively change the internet as we know it. Here are some tools that can help you keep track of SOPA and PIPA as well as prepare for problems in case they pass.

Protect Yourself in Advance

Google Chrome users can pick up the No SOPA, which reveals which sites support SOPA when visiting them. If you're interested in writing a letter to supporters, boycotting their sites, or simply be aware of their support, this extension can help with identification.

Google Chrome users should check out MAFIAAFire Redirector, which will intercept any domain names typed into your address bar and load via the site's numeric IP address instead. Firefox users have the choice of two extensions, DeSOPA and MAFIAAFire ThePirateBay Dancing, which do the same thing.

Additionally, Reddit users are creating a SOPA emergency list that hold the IP addresses of various sites. In the event these extensions don't work out or there isn't one for your browser, you'll be able to make edits to the hosts file on your computer to override any blocked sites. For now there's no sense in doing anything because there is no problem yet, but it's good to be prepared for the worst.

SOURCE: Lifehacker

,VIVAnews - An earthquake measuring 7.2 magnitude that rocked the Mentawai Islands, West Sumatra, Monday, October 25, 2010, causing a wave of deadly attacks, the tsunami. All the settlements are located on the west coast islands were hit by a tsunami that killed more than 400 people.

Indonesia is no longer familiar with the disaster. In December 2004, the great tsunami occurred in Aceh. Then the next three months occurred in Nias. One more year, exactly 17 July 2006, the tsunami also occurred in Pangandaran, West Java.

Tunami track record was already in place since 6000 BC. Scientific media page Livescience.com records list all-powerful tsunamis that have occurred on Earth.

6,000 BC

Large cluster in Sicily snow avalanches and falls into the sea. Landslide that occurred at 8 thousand years ago has sparked the tsunami spread across the Mediterranean Sea. There is no historical record of this disaster. Only the scientists estimate tsunami geology at 320 kilometers per hour has reached a height of 10 floors building.

1 November 1755

After the earthquake that destroyed Lisbon, Portugal, and shook much of Europe. Many people who take refuge in the boat. However, the tsunami would occur. No doubt this disaster killed more than 60 thousand people.

August 27, 1883

The eruption of Mount Krakatau in the Sunda Strait, triggering a tsunami that drowned coast of Sumatra, northern Java, and the Thousand Islands. Wave strength can drag coral weighing 600 tons to the beach. 36 thousand people have died in vain.

June 15, 1896

Waves as high as 30 feet emerged shortly after the earthquake in Japan. All of the tsunami that swept the east coast. 27 thousand people died.

1 April 1946

Large earthquake in Alaska cause big waves in Hawaii. Disasters are often referred to as the "mystery" April Fools tsunami "that killed 159 people.

July 9, 1958

8.3 Richter magnitude earthquake in Alaska sends out a wave of up to 576 meters in Lituya Bay, Alaska. It is the largest tsunami recorded in modern times.

Fortunately, the tsunami occurred in isolated places, so it does not cause many casualties. Tsunamis are only left two fishermen died, because the ship sank, hit by the waves.

May 22, 1960

The largest earthquake ever recorded of 8.6 magnitude in Chile. This earthquake created a tsunami that struck Chile Beaches within 15 minutes. High waves occur up to 25 meters. The tsunami killed 1,500 people in Chile and Hawaii.

March 27, 1964

Alaska Earthquake "Good Friday" measuring 8.4 magnitude, caused waves of 67 meters at Valdez Inlet region, Alaska. Wave at 640 kilometers per hour, killing more than 120 people. Ten of them were from the Crescent City, California, who also got sent waves as high as 6.3 meters.

August 23, 1976

Tsunami in the southwest Philippines killed at 8 thousand people. This great wave also triggered earthquakes in the vicinity of the beach.

July 17, 1998

An earthquake with magnitude 7.1 force generate a tsunami in Papua New Guinea. BESA wave quickly kill 2,200 people.

December 26, 2004

All-powerful earthquake with a strength of 9.3 magnitude rocked the Indian Ocean, off the west coast of Aceh. Largest earthquake during the last 40 years has led to high waves in North Sumatra, West Coast of Peninsular Malaysia, Thailand, the East Coast of India, Sri Lanka, even to the East Coast of Africa.

At least 320 thousand people from eight countries died. This disaster is the biggest death throughout history.

March 28, 2005

Three months later, tsunami also occurred in Sumatera. Off the coast of Nias Earthquake measuring 8.7 Richter which sparked a major tsunami that killed 1,300 people on Nias Island, West Sumatra.