Thursday, 15 December 2011

Voyager from the edge of the solar system recorded Incredible scenes



Twin NASA mission, Voyager, which is located at the entrance of the galaxy for the first time in history has peered outside the solar system and recorded images of the human eye has never seen.

According to new research, the two aircraft were in other parts of the Milky Way ultraviolet light recorded by our instruments so far from hiding blinding glow of our parent star.

"People were trying to perform these measurements from Earth orbit, but that they never succeeded," said veteran Bill Sandel Voyager missions with the University of Tuscany.

This frequency of light, known as alpha radiation Limanovo, send the hydrogen atoms that are cooled. On Earth, it is almost impossible to detect this radiation, since UV signals in our galaxy are disappearing in a sea of ​​solar radiation scattered stray hydrogen atoms, just as the stars invisible during the day because the atmosphere scatters the sun's rays.

Scientists have already managed to capture Limanovo alpha radiation from distant galaxies, because it comes with a certain shift towards the red end of the spectrum caused by expansion of the universe. This change in frequency of light emission makes it possible to clearly distinguish it from solar. No emission from our galaxy have a redshift, so it is much harder to distinguish.

Voyager 1 and 2 were launched in 1977. year. The 2004th they entered the Solar System and are now about 100, or 120 times the distance from the Sun than Earth.

This distance and the new data analysis techniques have enabled scientists to distinguish between galactic radiation from the Sun. The new data will allow a better understanding of the structure and properties of distant galaxies.

Tuesday, 13 December 2011

Another redesign for Twitter



Social network Twitter will no longer be the same, company leaders decided.

Twitter has introduced a major redesign of its services and issued a new application for Android and
IOS accompanying the new design guidelines, and behind it lies a desire to change the way user's access to its tweets.

Twitter users will see changes on computers in a few weeks, while the tweeters that social network with mobile access, redesigned service would be available immediately.

As a reminder, the previous design made ​​it possible to extend the''time-line "and thus immediately see all related information contained in the''tweet."

Sunday, 11 December 2011

This is how Antarctica looks without ice!



If you ever wondered how the Antarctic ice-free look, a new detailed map of the southernmost continent on the globe will surely delight.

Specifically, members of the project BEDMAP managed on the basis of data collected from decades of ships, aircraft and satellites, and even the sleigh, to simulate the soil.

It is interesting that less than one percent of its land is covered with a white blanket. On the map below the highest peaks are marked with red and black. Light Blue indicates a clear extension of the continent, while the lowest area marked dark blue. Some of them are now well below sea level.

This model is not only beautiful, it's also important to explore the possible impact of global warming on the white continent. In fact, scientists recently recorded major changes at the ends of the continent of which are separated by large parts of the ice and melt in oceanic waters. Data gathered by BADMAP will help scientists to predict the extent and speed of developments.

"That information is the foundation of our models that reveal how the ice travels the continent," said Hamish Pritcard the British Antarctic Survey.

"Snow constantly supplying Antarctic ice sheet and ice constantly sliding towards the shore where it dissolves or breaks. It is big and slow hydrological cycle. To create such models need knowledge about the complex physics of ice, and topographic map of the soil in which ice slides, and that is BEDMAP. "

The map is presented at a session of "American Geophysical Union (AGU)", the largest annual conference of planetary scientists in the world.

The radar surveys were used because microwave radiation penetrates the ice, but not through the rocks.

Most interesting in the new model is certainly an area Gamburtsev mountain range where the highest peaks reaching 3000 meters above sea level. Despite these elevations are covered with thick layers of ice more than 1000 meters.

Saturday, 10 December 2011

Will Google "kill" Mozilla?

Since the Mozilla Foundation 84% of its revenues (about $ 100 million) last year received from Google, which pays to its search itself in the Firefox browser, the big question is how to survive when Mozilla this work, which expired in November would not be extended. When asked whether the ZDNet site there was a new deal two companies, in Mozilla responded that no new information.

Google, which has its own Chrome browser, which is better than Firefox, you may decide not to renew the agreement in order to indirectly slow down the competition, according to ZDNet.

What will then happen with Mozilla and Firefox?

It may be in place  Google "jump" Microsoft, which certainly is intended to provide significant Bingu market share, and the two companies already collaborate on a project with Bing Firefox, according to B92.

However, even if it does solve the problem Mozilla is only in the next year or two, and analysts have predicted that in future the main race of the browser market between Microsoft and run Google.

Friday, 9 December 2011

Diet reduces heart risk in teens

A large proportion of fiber-rich foods in the diet of teenagers is associated with a reduced presence of risk factors for heart disease, U.S. researchers reported.

Researchers at the University of Michigan, after analyzing the diet of more than 2000 respondents aged 12 to 19 years are added to the diet was associated with lower risk for type 2 diabetes

Their data showed that the intake of saturated fat or cholesterol in teenagers does not affect the occurrence of risk factors for heart disease and type 2 diabetes

The lowest risk for high blood pressure, increased concentration of sugars and fats in the blood, reducing the concentration of so-called. of good (HDL) cholesterol and increased waist circumference was observed in teenagers who each brought at least 1000 calories 11 grams of fiber from fruits, vegetables and whole grain products.

Thursday, 8 December 2011

NASA confirmed the existence of "Other Earth"!



The U.S. space agency (NASA) announced that the Kepler Space Telescope confirmed the existence of planets outside our solar system where there is a possibility of life, carried Belgrade media.

This planet, named Kepler 22b, astronomers noticed that 2009 is the first for which NASA is able to confirm that the zone is suitable for life. This means that astronomers see how the three passes, "transit" in front of its sun. This, however, does not mean that life does exist on the planet, but only to meet the basic requirements.

In other words, the planet is orbiting at the right distance from its star, which suggests that it may be on the water and that the temperature and atmosphere suitable for life.


 "The Kepler 22b of asserting the existence of planets suitable for life. We are sure that the planet is in a suitable area to live and if there is an area, you should at a pleasant temperature to her," said Bill Borak, principal investigator of the "Kepler" in NASA Ames research cent.

Rotated around its star at a distance of 600 light years away, Kepler 22b is 2.4 times larger than Earth and its orbit crosses the sun for 290 days. Scientists, however, do not know if this planet is rocky, gaseous or liquid. "Transit" observed the planet shortly after its launch into space telescope Kepler in March 2009.

Kepler Telescope mission was the first American space agencies are looking for Earth-like planets that orbit as they have around their sun. Kepler is equipped with the largest camera ever sent back into space with a resolution of 95 megapixels, and is expected to continue to send information to Earth until November 2012th



 The third planet eligible for life

22b is the third Kepler exoplanet for which astronomers have confirmed that conditions for life. Besides it, there are also Gliese 581d by French astronomers have discovered in May this year and HD 85512d which in August of Swiss astronomers found that the area is suitable for life.

Wednesday, 7 December 2011

Find out how it really works on Wikipedia

Wikipedia is a kind of organism that never stagnates and is continuously updated, and is now richer and Wikistream. This addition to the "free encyclopedia" allows us to gain insight into what exactly is and how it occurs and in real time.

 With Wikistream the pictures in the background randomly change, but the stream sometimes going so fast that you can barely follow what was happening.

So we can say that users of Wikipedia have no idea about the approximate amount of content and activities on it's - until they see Wikistream. Many people around the world "worry" about different possible topics on the "free encyclopedia", add new content, and to remove obsolete - every second.

If you do not want to watch a global view of activity on Wikipedia, Wikistream allows you to select which country you want to follow, and will help you in choosing the type of information you want to track in real time.


 If your stream too fast or you want to go to a specific page, just press "P" on the keyboard and the whole stream will stop. To start it again, press "P".

Here's how the authors explain their project idea:

"I hope that Wikistream allow you to guess how many active community engaged in Wikipedia. Wikistream was created to help identify the level of involvement of people worldwide who actively participated in that Wikipedia becomes a tremendous resource as we are."