Selasa, 19 Juli 2011

Be Careful, PDF files on the iPhone and iPad there is Malware



Malware is a malicious code that is contaminating the cell phone application that makes you do something that is not supposed to do, like stealing your personal data.

A website can also be contaminated by malware, most contaminating a web browser on a PC. But this time the attention of cybercriminals and hackers is a mobile browser, this is because many people store personal data within the phone.

Recently, ReadWriteWeb reported that the German government issued a warning about some versions of Apple's IOS operating system at risk of malicious mobile code via PDF File.

The iPhone and iPad users who download the PDF File risky accessed by cybercriminals to steal confidential information. The most worrying thing is when businesses, agencies, or government target cybercriminals and hackers, because the need is their email address, then do a little social engineering, and they can access the entrance.

Hackers will be in action when you go to the website and open a PDF file that has been contaminated by malware, then hackers will easily take control of your IOS device (IOS affects from 3.1.2 onwards).

In order for the iPhone and iPad you less susceptible to malware is to avoid opening the PDF file from an untrusted source. Or by downloading the iPhone jailbreak and install applications that will give warning when you open a PDF file that can harm your iPhone.

Senin, 18 Juli 2011

Microsoft Tulalip Prepare for Social Networking Project


Microsoft Tulalip Prepare for Social Networking Project

WASHINGTON - Microsoft is known to the middle of preparing a project called Tulalip, a service that allegedly is a social networking project. Facebook and Google stalking?

This project itself develops between the user virtual world, after Microsoft inadvertently socl.com publish through the site. But after bustling about, Microsoft has lowered the splash page and replaced with the message that this is a project.

"Thank you for stopping publications. Socl.com, Tulalip is an internal design project from a team at Microsoft Research who mistakenly published to the web. We do not mean, honestly," Microsoft wrote, as reported by Venture Beat, Friday (15 / 7 / 2011).

There has been no further explanation about this Tulalip. But many people suspect, it's not just Microsoft's internal project only. Furthermore according to the moment Google has attracted the interest of many people, and make it as one of the most powerful competitor Facebook.

Popularity sped rapidly make Google successful embrace so many new users even launched early last July. Not surprisingly, social networking is claimed as a serious threat to Facebook.

After noting the impressive achievements last week, Google was allegedly going to break new records in the near future. That's according to Paul Allen from Ancestry.com has closely observed the development of Google.

"I think Google will be able to exceed 10 million in the near future, even reaching 20 million users at the weekend if they continue to provide Invite Button," says Allen

Source

Sabtu, 16 Juli 2011

Puzzle "3n+1" Maybe Solved


Puzzle "3n+1" maybe solved
Mathematical puzzle that has not found the answer for 74 years may soon be solved. Is a mathematician from the University of Hamburg, Gerhard Opfer, who claims to have found a solution.
Mathematical puzzle called the Collatz Conjecture or "3n +1" was proposed by Lothar Collatz in 1937. Puzzles that involve integer operations are denoted "n". In short, there are two conditions that apply in the Collatz Conjecture. If the integers (n) is an even number, then divided by two (n / 2) and if odd then multiplied by 3 then add 1 (3n +1).
Well, the Collatz Conjecture is expressed, if the operation continues to be done repeatedly, regardless of the numbers chosen to start it will always get the number 1 as a result. Verification has been done to the values ​​of 5.76 x 10 (18). However, without proper mathematical proof, there is always the possibility that huge numbers will deviate from this "law". This mathematical proof that has been owned by Opfer. He wrote in a paper which has now entered into the journal Mathematics of Computation for review because it could have no proper proof.
Now, does this math puzzle will be completely resolved? We'll wait. While waiting, maybe you could try to operate the numbers based Collatz Conjecture.
Try to take the number 6. Since 6 is even, then divided by 2, the result 3. Well, 3 is odd, then multiplied by 3 and plus 1, the result is 10. Then, 10 divided by 2 because an even number, the result 5. Then, 5 multiplied by 3 and plus 1, the result is 16. Number 16 divided by 2, the result 8. Then 8 divided by 2 results 4 and 4 divided by 2 again results 2. Figures 2 is an even number, then divided by 2 again and the result is 1. Well, if sorted, then deretannya is 6, 3, 10, 5, 16, 8, 4, 2, 1. For number 6, meaning attested. You can try to take another number. Want more challenging, take a big number.

source 

iPhone Application Password Reminder


Did you ever reset your password, simply for forgetting?

If you download the application PasswordGear iPhone, you do not need to reset the password again. Unless you forget your passcode iPhone, of course.

This application uses mnemonic aid called Hookup System, which basically helps you match the character of a password that is easy to remember and others.

When you first install the application, you will be prompted to enter a password, or generate a random password. You then build a story from the object and those associated with the character of your password. And in the end you have to pass tests of memory, just in case you lose the plot.

PasswordGear to make your goal does not depend on personal password, which we know very easily stolen.

Applications are available at iTunes AppStore PasswordGear with the U.S. dollar price of 0.99.

Let's download the application now so you can remember the password.

Source 

Making Solar Cells on to Paper


Researchers at the Massachusetts Institute of Technology have created the technology in making solar panels that can be printed on a sheet of paper. This development makes the manufacture of solar panels cheaper and easier.

The solar panel of this paper is quite strong although it has been folded into a toy airplane. In addition, flexible solar panels that can be recharged when exposed to sunlight.

Printing process using steam instead of liquid. The use of a temperature less than 120 degrees Celsius allows the use of paper, plastic, or cloth as a container ordinary solar panels.

Researchers said, "The panel of this paper to be a breakthrough that could reduce production costs in the manufacturing of solar panels. It costs nearly one-thousandth the cost of panels made of glass."

Researchers said, solar cells printed on paper is still in the testing phase, the efficiency is still about 1 percent.

Professor of Electrical Engineering Vladimir Bulovic who participated in the study said, although the efficiency is still very small, this panel has been able to move small appliances. "I am sure in the near future we will refine these flexible solar panels," he said.

Source