Wednesday, October 1, 2008 at 10/01/2008 02:06:00 PM Posted by surendra
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at 10/01/2008 02:05:00 PM Posted by surendra
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at 10/01/2008 01:54:00 PM Posted by surendra
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Sunday, September 14, 2008 at 9/14/2008 04:46:00 PM Posted by surendra
The Trinity Bomb is a replica of the first atomic bomb detonated in New Mexico at the Trinity Test site.
Dropped at the Trinity Test site in New Mexico, the Trinity bomb was the world's first atomic bomb. This particular replica was used as a prop for the BBC movie "Oppenheimer."
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Thursday, September 11, 2008 at 9/11/2008 10:27:00 PM Posted by surendra
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at 9/11/2008 08:55:00 AM Posted by surendra
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at 9/11/2008 08:46:00 AM Posted by surendra
The European Organisation for Nuclear Research, known as CERN, on Wednesday began an experiment to recreate conditions akin to Big Bang, which scientists believe gave birth to the universe.
Its Large Hadron Collider (LHC) will seek to collide two beams of particles at nearly the speed of light in a series of experiments spread over next six weeks. Scientists will circulate a beam in one direction around the accelerator, then the other, later sending beams both ways to cause collisions. Following are some facts about the Big Bang and CERN's particle-smashing experiment which is also set to be the biggest data crunching exercise ever undertaken by mankind.
The final tests involved pumping a single bunch of energy particles from the project's accelerator into the 27-km (17-mile) beam pipe of the collider and steering them counter-clockwise around it for about 3 km (2 miles).
The collider aims to simulate conditions milliseconds after the "Big Bang" which created the universe around 13.7 billion years ago. The collisions, in which both particle clusters will be travelling at the speed of light, will be monitored on computers at CERN and laboratories around the world by scientists looking for, among other things, a particle that made life possible.
The elusive particle, which has been dubbed the "Higgs Boson" after Scottish physicist Peter Higgs who first postulated nearly 50 years ago that it must exist, is thought to be the mysterious factor that holds matter together.
Recreating a "Big Bang," which most scientists believe is the only explanation of an expanding universe, ought to show how stars and planets came together out of the primeval chaos that followed, the CERN team believes.
Its essential feature is the emergence of the universe from a tiny speck about the size of a coin but in a state of extremely high temperature and density. The name "Big Bang" was coined in 1949 by British scientist Fred Hoyle to disparage a then emerging theory about origins that countered his own "steady state" view: that the universe had always existed and was evolving but not expanding.
According to the Big Bang model, the universe expanded rapidly from a highly compressed primordial state, which resulted in a significant decrease in density and temperature. Soon afterward, the dominance of matter over antimatter (as observed today) may have been established by processes that also predict proton decay. During this stage many types of elementary particles may have been present. After a few seconds, the universe cooled enough to allow the formation of certain nuclei.
The theory predicts that definite amounts of hydrogen, helium, and lithium were produced. Their abundances agree with what is observed today. About 1,000,000 years later the universe was sufficiently cool for atoms to form.
When two beams of protons collide, they will generate temperatures more than 100,000 times hotter than the heart of the Sun, concentrated within a miniscule space. Meanwhile, the cooling system that circulates superfluid helium around the LHC's accelerator ring keeps the machine at minus 271.3 degrees Celsius (minus 456.34 degrees Fahrenheit).
Smaller colliders have been used for decades to study the makeup of the atom. Less than 100 years ago scientists thought protons and neutrons were the smallest components of an atom's nucleus, but in stages since then experiments have shown they were made of still smaller quarks and gluons and that there were other forces and particles.
To collect data of up to 600 million proton collisions per second, physicists and scientists have built devices to measure the passage time of a particle to a few billionths of a second. The trigger system also registers the location of particles to millionths of a meter.
The data recorded by the LHC's big experiments will fill around 100,000 dual-layer DVDs each year. Tens of thousands of computers around the world have been harnessed in a computing network called "The Grid" that will hold the information.
CERN, the European Organisation for Nuclear Research, is one of the world's largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works.
Founded in 1954, the CERN Laboratory sits astride the Franco-Swiss border near Geneva. It was one of Europe's first joint ventures and now has 20 member states, plus 6 actively participant observers including the United States and Russia.
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at 9/11/2008 08:37:00 AM Posted by surendra
The spotlight's back on iPods. In a hotly-awaited and speculated announcement the company refreshed its popular iPod line-up. The revamped iPod nano and Touch come with a host of new features and changes in the appearance.
While the company termed the new nano, “thinnest-ever,” the new iPod Touch is called “the funnest iPod ever."
The company also pleases fans on the pricing front. Along with feature additions, the new iPods also boast of reduced pricing. Here's a look into the new line-up.
Sleek seems to be the buzzword at Apple, after thinnest laptop, Apple has removed `flab' from iPod nano. In a revamp of its iPod line-up, the company launched what it termed as ‘thinnest’ ever iPod nano.
The fourth-generation nano is oval shaped at the edges, giving it a sleeker and slimmer look, unlike the previous compact design.
Measuring 3.6 x 1.5 x 0.24 inches, the new nano weighs 36.8 grams, vis-a-vis present model's 2.75 x 2.06 x 0.26 inches in dimensions.
The player has a 2 inch (diagonal) LCD display with blue-white LED backlight and 320 x 240 pixel resolution. Users can now view content in both portrait and landscape modes.
iPod Touch too has gone sleeker in design. It now sports a rounded chromed-steel back that wraps around the sides a la the 3G iPhone. Measuring 4.3 x 2.4 x 0.33 inches, the second-generation iPod Touch weighs 115 grams (5 grams less than previous model). The player has a 3.5-inch (diagonal) widescreen multi-touch display with 480 x 320-pixel resolution at 163 pixels per inch.
There were strong speculations that Apple will increase the memory capacity of iPod Touch to 64GB. But, Apple has disappointed with no memory upgrade to the iPod Touch. Apple will continue to sell Touch in 8GB, 16GB and 32GB models.
The Apple's best selling iPod nano will come in two model versions: 8GB and 16GB. The third-generation nano comes with a memory capacity of 4GB and 8GB model.
Apple claims that the new 16GB model can store up to 4,000 songs in 128-Kbps AAC format3, up to 14,000 iPod-viewable photos, and up to 16 hours of video content.
The new nano comes with a "shake to shuffle" feature that changes songs as the user shakes the player. Another addition is the built-in accelerometer which flips the screen orientation, a feature already available in iPhone. Users can now view photos and video in both horizontal and landscape mode.
As speculated, Apple has retained the wheel-based control for navigation. The new nano will come with a 3.5mm headphone jack and USB cable connector placed at the bottom. The hold button is on the top panel of the player.
The new categorisation feature lets users create a playlist based on one song, matching it with similar choices from their music library. Apple claims that the new nano will provide up to 24 hours of audio and 4 hours of video on a single charge.
The second-generation iPod Touch too comes with a slew of new features. These include support for on-device Genius playlist creation, Microsoft Exchange Push email, multi-language keyboard, dictionary support, MobileMe, multiple calendar management, contacts search and a scientific calculator.
Popularly termed iPhone cousin, iPod Touch now has a volume rocker switch on the sides for making quick volume adjustments without touching the screen. There's also a built-in speaker added. Apple claims the new iPod Touch will support up to 36 hours of music and 6 hours of video.
The company has also bundled Nike+ hardware and software in iPod Touch, which would allow users to sync iPod Touch via iTunes and transfer their exercise data to nikeplus.com. This will help them can track their workouts.
The new nano will now come in nine colours, with many of them in flashy tinge. The colours include bright yellow, hot pink, deep indigo, silver and basic black models.
Presently, iPod nano comes in silver, turquoise, mint green, black, red and pink colurs. iPod Touch has not got any new colur variants.
The only addition is the chromed-steel colour back that wraps around the sides as well, just like the 3G iPhone.
Apple has delighted fans with a major price cuts in most models. The thinnest iPod nano will sell at $149 for 8GB memory and $199 for 16 GB version. Incidentally, the current third-generation iPod nano sells for $149 for 4GB version and $199 for an 8GB model.
The biggest surprise is the iPod Touch pricing. The 8GB version of the iPod Touch will sell for $229 (down from $299), 16GB for $299 (down from $399), and 32GB for $399 (down from $499)
Termed `the funnest iPod ever' by CEO steve Jobs, Apple wants users to look at Touch as a portable gaming device. iPod Touch's huge screen isn't just for Coverflow or video viewing anymore, the company visualises it for games and apps.
With support for multi-touch, accelerometer, real-time 3D graphics and 3D positional sound, Apple claims that the iPod Touch is `the best portable device for playing games.'
The new iPod range also boosts Apple’s Green goals. Adding another first, the new iPod nano is the cleanest iPod ever.
Terming it highly recyclable, the new nano is mercury free, toxic free, PVC free and uses arsenic-free glass. It uses recyclable aluminum.
Here's again where speculations went slightly awry. Most blog sites had speculated that Apple will completely take iPod Classic off the shelf. However, Apple has retained iPod Classic.
Though it has reduced the iPod classic line to just one model-- a 120GB model which will sell for $249. Previously, the classic line came in two versions: 80GB ($249) and 160GB ($349).
The iPod revamp may have enthused the users, however, it has so far failed to click with the markets. The investors were less than energised by the product announcements which were largely expected. This sent Apple's shares down by $4.96, or 3.1 percent, to $152.96 in afternoon trading.
The stock had been off just over $40, or a little over 20 per cent in the year-to-date, but has weathered the sell-off in stocks tied to the US credit crunch far better than most other shares, including many technology names.
By contrast, Google Inc is off almost 40 per cent this year. Rival Research in Motion Ltd, maker of the Blackberry smartphones has gone down by 9 per cent in 2008 on Nasdaq. In a succinct verdict, Shaun Collins, an analyst with CCS Insight said, "Interesting, but underwhelming."
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Sunday, August 31, 2008 at 8/31/2008 12:09:00 PM Posted by surendra
DONE BY THE METEOROLOGICAL DEPARTMENT AT THE NATIONAL CENTRE OF METEOROLOGY AND SEISMOLOGY (NCMS) TO REMOVE THE AIR POLLUTION ON DUBAI'S ATMOSPHERE..
IT IS CALLED 'CLOUD SEEDING' A LATEST TECHNOLOGY TO CUSTOMISE WEATHER..CLOUD SEEDING, A FORM OF WEATHER MODIFICATION, IS THE ATTEMPT TO CHANGE THE AMOUNT OR TYPE OF PRECIPITATION THAT FALLS FROM CLOUDS, BY DISPERSING SUBSTANCES INTO THE AIR THAT SERVE AS CLOUD CONDENSATION OR ICE NUCLEI. THE USUAL INTENT IS TO INCREASE PRECIPITATION, BUT HAIL SUPPRESSION IS ALSO WIDELY PRACTICED. SILVER IODIDE AND DRY ICE ARE THE MOST COMMONLY USED SUBSTANCES IN CLOUD SEEDING TECHNOLOGY.
AN AIRCRAFT IS PUTTING DRY ICE ON CLOUDS WHICH MAKES ARTIFICIAL RAIN
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at 8/31/2008 08:27:00 AM Posted by surendra
Chairman and CEO of Xerox Corp, Anne M Mulcahy tops the list of the most powerful tech women. She became CEO of Xerox in August 2001, and chairman on January 1, 2002. Mulcahy is credited of having pulled Xerox out of a near-fatal slump in 2002. Her ideas include colour printing, eco-friendly technologies and lucrative consulting services. To compete with rivals like Canon and Hewlett-Packard, Mulcahy doubled Xerox's software R&D budget to $1.5 billion. She began her Xerox career as a field sales representative in 1976 and assumed increasingly responsible sales and senior management positions. From 1992-1995, Mulcahy was vice president for human resources, responsible for compensation, benefits, human resource strategy, labor relations, management development and employee training. Mulcahy became chief staff officer in 1997 and corporate senior vice president in 1998. Prior to that, she served as vice president and staff officer for Customer Operations, covering South America and Central America, Europe, Asia and Africa. Mulcahy earned a bachelor of arts degree in English/journalism from Marymount College in Tarrytown, NY. In addition to the Xerox board, she is a board director of Catalyst, Citigroup Inc, Fuji Xerox Company, Ltd, Target Corporation, The Washington Post Company, and is the chairman of the corporate governance task force of the Business Roundtable.
Co-President of Oracle Corporation, Safra A Catz ranks at no. 15 on the list. An Oracle veteran, she served as an Executive Vice President from November 1999 to January 2004, and as Senior Vice President from April 1999 to October 1999. Safra A Catz has served as a President since January 2004, as Chief Financial Officer since November 2005, and as a Director since October 2001. The magazine praises Catz for overseeing Oracle's numerous acquisitions -- the company's stock was recently trading near its five-year high. An Israeli, Catz held a key role in $10.3 billion takeover of software rival PeopleSoft. Prior to Oracle, Catz was at Donaldson and Lufkin & Jenrette, global investment banks. A bachelor's degree holder from the Wharton School of the University of Pennsylvania, she later pursued law from the University's Law School.
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Thursday, August 14, 2008 at 8/14/2008 02:17:00 PM Posted by surendra
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