Chip, 4 cores and 45 nanômetros

In tests, the Penryn shows modest improvements with respect to the predecessors.

There is a new four processor cores for desktops top line on the market. Denominado Penryn, it is the first of the Intel chip to be manufactured with technology from 45 nanômetros (nm).

Our first test with the WorldBench 6, conducted by PC WORLD in the United States, running a system with a chip QX9650 Core 2 Extreme, 3 GHz, shows only a small gain in performance, as compared to QX6850 Core 2 Extreme, also of 3 GHz , but of 65 nm.

One caveat: none of the applications simulated in the test already use the new instructions SSE4 (Single Instruction, Multiple Data Extensions 4), which should speed up implementation of key tasks, such as codec for video in multimedia applications, as demonstrated by Intel recently.

Hourly, what is expected is that the process of manufacturing of 45 nm adopted by Intel in Penryn allow the emergence of a new family of processors for computers, fast table.

Penryn The family of processors is produced using a process that 'shrinks' the characteristics of the chip to only 45 nm, or about 1/18.000 thickness of a human hair.

That is, well below the technology used in the current Core line (65 nm) and even lower than some processors Pentium 4 (90 nm). Intel has already demonstrated some advances in the technology of 32 nm to be used on processors in two years.

By reducing the size of transistors, Intel can produce more CPUs from the same amount of silicon, or build more complex processors in the same space.

The Celeron 300, produced in 1995 using a process of 250 nm, 131 mm square and media had 7.5 million transistors, the current Core 2 Duo of 65 nm occupies an area slightly larger, but contains 291 million transistors.

How to save energy in the day-to-day

Adopt some habits that reduce the spending power of your PC and other devices.

In times of global warming, has been increasing concern about the decrease in spending for power. Apart from the ecological aspect, there is also question of his pocket: the value of the account at the end of the month, may decrease in some precious real.

PC World heard some experts in the area to find out how to proceed with electronic devices - at home or at work - to make a more rational use of electric energy.

Keep in mind that most modern electronic equipment tend to spend less. This is because using components that make more efficient use of electric energy. Television, for example, must include the Label Procel (National Program for Conservation of Electricity). Look choose one that makes the most efficient use within their category.

The technology used in electronic equipment directly influences in their energy consumption. A monitor, 17 inches of CRT technology, for example, has a power of 65 Watts (W).

Meanwhile, one of equally sized LCD consumes 30 W, according to Ada Noriega, manager of products from monitors of LG Electronics. That is, the mere exchange of technology provides a saving of over 50% in consumption.

Another important factor: even when comparing two devices with the same technology, the latest usually consume less. "The new electronic technology with old aggregate resources, as, for example, a timer to turn off a TV," recalls Fernando Bacellar, AES Eletropaulo, feature useful for those who often sleep in front of the TV.

IRON MAIDEN "Live After Death"

News are not exactly the forte of the DVD "Live After Death" of Iron Maiden, launched in Brazil to take advantage of the coming of the group of English heavy metal to the country in March.

The material is the revival in the new format VHS with records of a show of the group in the United States in 1884, during one of the most celebrated tour of Iron Maiden, which had "The Trooper", "The Rime of the Ancient Mariner", "Powerslave "and" Number or The Beast "in the repertoire.

But remember the presentation of the times in which Dickinson also had the long hair and desfilava your pants colantes colored with enthusiasm by stage is not the most fun part of the DVD. The second disc of the box brings together two documentaries an hour-long with testimonials, interviews and scenes of scenes of the band throughout their career. There memories on bebedeiras and confusion where meteram members of the band in the days of youth, and the inevitable complaints about the wear of the routine shows, trials and recordings of the disks.

In line historical, the most interesting highlight of the DVD "Live After Death" is the record of the presentation at Rock in Rio in 1985, one of the most memorable concerts of the group, according to testimony of the Iron own components.

Descartado the understandable commercial opportunism of a relaunch such as "Live After Death," see (or revise) scenes of Iron Maiden of the 1980 to the eve of another show of the group in Brazil, more than 20 years after the historic participation in Rock In Rio, it is an opportunity to put into perspective the always heated discussion about the long career of the group.

In certain point of the show, "Live After Death," the singer Bruce Dickinson stop the presentation and commented on the success of the tour the group even without major badalações gone to the media in the eighties. Well, simply observe the outskirts of shows that the group will be in Brazil in March to see that all this time, at least in the enthusiasm of fans, little has changed.

Italians create Ferrari of chocolate

Heads of kitchen worked two months in car.

Work-press consumed about two thousand pounds of chocolate

Heads of the Italian Club Pasticcieri Italiani work in a car Formula 1 done with about 2 thousand pounds of chocolate in Nápolis in the southern region of the country. (Photo: AP)

Super-Man flies in the victory of Nuggets

Super-Man flies in the victory of Nuggets

Mascot repeats Dwight Howard, the champion of buried in the NBA
The Super-Man again flying in the Denver Nuggets. This time, it was the mascot of the team, in the range of the Nuggets victory over the Boston Celtics on this Tuesday by the NBA, by 124 to 118, at home.

The mascot repeated the flight of the true Super-Man of Denver, Dwight Howard, who last Saturday won the championship, buried the All-Star Weekend with that sensational leap. See the athletes next to the court!

World

British photographer to register rare images of the Aurora Boreal, in the North Pole.
Photographer records images of rare Aurora Boreal

The British photographer Mark Humpage, an expert in photos of weather phenomena, to register rare images of the Aurora Boreal, in the North Pole.

Humpage spent six days in the region of Karasjok, in the Arctic Circle, to make the images of the luminous phenomenon, created from the impact of electrical particles carried by the wind in the solar terrestrial magnetic field.

The shock creates a bright, usually in colour green, yellow or violet, observed in the heavens at night in regions near the poles.

The Auroras Boreais are rare, and scientists estimate that the probability of having it is greater in the period between September and October and February to March.

Due to darkness during the night in these areas, the registration of images from Auroras Boreais are difficult and photos of phenomena are rare.
Performance

Of the six days spent in the region, four were used for the area and choose the best position to make the photos.

To capture the images, Humpage was two nights photographing the entire phenomenon in Karasjok, where the temperature recorded -20 º C.

According to him, the images "are spectacular, magical and continuous." Due to the lack of light during the night, each exposure took 30 seconds to up to four minutes.

"It was one of the most amazing pictures I have seen," says the photographer. "There were rivers of color moving and covering the whole sky from horizon to horizon," account.

Links: http://ciencia.hsw.uol.com.br/questao471.htm

Dwight Howard - The Superman of the NBA

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