Saturday, May 5, 2012

Sexy at Every Age! George Clooney's Changing Looks

As the charming ladies man turns 51 on May 6, take a look at how the handsome star has become better with age

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Gawker's 'Fox Mole' has a book deal

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Lightning signature could help reveal the solar system's origins

Friday, May 4, 2012

Every second, lightning flashes some 50 times on Earth. Together these discharges coalesce and get stronger, creating electromagnetic waves circling around Earth, to create a beating pulse between the ground and the lower ionosphere, about 60 miles up in the atmosphere. This electromagnetic signature, known as Schumann Resonance, had only been observed from Earth's surface until, in 2011, scientists discovered they could also detect it using NASA's Vector Electric Field Instrument (VEFI) aboard the U.S. Air Force's Communications/Navigation Outage Forecast System (C/NOFS) satellite.

In a paper published on May 1 in The Astrophysical Journal, researchers describe how this new technique could be used to study other planets in the solar system as well, and even shed light on how the solar system formed.

"The frequency of Schumann Resonance depends not only on the size of the planet but on what kinds of atoms and molecules exist in the atmosphere because they change the electrical conductivity," says Fernando Simoes, the first author on this paper and a space scientist at NASA's Goddard Space Flight Center in Greenbelt, Md. "So we could use this technique remotely, say from about 600 miles above a planet's surface, to look at how much water, methane and ammonia is there."

Water, methane and ammonia are collectively referred to as "volatiles" and the fact that there are different amounts on different planets is a tantalizing clue to the way the planets formed. Determining the composition of a planet's atmosphere can be done with a handful of other techniques ? techniques that are quite accurate, but can only measure specific regions. By looking at the Schumann Resonance, however, one can get information about the global density of, say, water around the entire planet. Simoes and his colleagues believe that combining this technique with other instruments on a spacecraft's visit to a planet could provide a more accurate inventory of the planet's atmosphere.

"And if we can get a better sense of the abundance of these kinds of atoms in the outer planets," says Simoes, "We would know more about the abundance in the original nebula from which the solar system evolved."

Accurate descriptions of planetary atmospheres might also help shed light on how the evolution of the solar system left the outer planets with a high percentage of volatiles, but not the inner planets.

Detecting Schumann Resonance from above still requires the instruments to be fairly close to the planet, so this technique couldn't be used to investigate from afar the atmospheres of planets outside our solar system. Instead, scientists imagine something much more dramatic. After a spacecraft is finished observing a planet, it could continue to detect Schumann resonance as it begins its death dive into the atmosphere. During the process of self-destruction, the spacecraft would still provide valuable scientific data until the very last minute of its existence.

###

NASA/Goddard Space Flight Center: http://www.nasa.gov/goddard

Thanks to NASA/Goddard Space Flight Center for this article.

This press release was posted to serve as a topic for discussion. Please comment below. We try our best to only post press releases that are associated with peer reviewed scientific literature. Critical discussions of the research are appreciated. If you need help finding a link to the original article, please contact us on twitter or via e-mail.

This press release has been viewed 53 time(s).

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The Jobs Report: More Evidence Austerity Doesn't Work (Rolling Stone)

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Josh Koscheck on a tractor (PHOTO)

Do you want to see what UFC on Fox 3's Josh Koscheck looks like sitting on a tractor? Obviously, yes.

Sure, Koscheck has talked about his fancy home and fast cars while on "UFC Insider," but he seems at home right here, too. We'll see Saturday if his game is as diverse as his love of vehicles! OK, that was a reach. Sorry about that.

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Motion-Tracking Swivl Smartphone Dock Now Has A Cheaper Little Brother: The Swivl-it

Swivl-it-store4The Swivl motion-tracking smartphone dock has always seems like a nifty piece of kit, but its $179 price tag doesn't exactly bring the device into "I can do something cool with this" impulse buy territory. Fear not, you penny-pinching video buffs -- the team at Satarii have just revealed that a more basic version called Swivl-it is now available, and it costs $50 less than its more feature-packed brother.

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Thursday, May 3, 2012

Amber Riley Collapses on Red Carpet, Is Okay


Amber Riley created quite a commotion on the red carpet last night, fainting in front of her co-stars and photographers at a TV Academy event in Los Angeles honoring Glee.

Amber Riley Red Carpet Photo

"Hey guys, I'm okay :) I got a little dizzy from all the photog flashes!" the actress Tweeted soon after the scare. "You'd think I's be used to it by now, still a red carpet amateur I guess. Gonna get checked out but I feel fine. Thank you for all the concern and well wishes."

Riley recovered in time to participate in the show's panel discussion, adding an online thank you to those around her during the collapse.

"I'd also like to thank the photographers for being professional and not taking photos of me on the ground. I truly truly appreciate it. Could have been super embarrassing."

Have you seen the shots of Riley and her fellow cast members attending the William McKinley prom? Check them out now in the Glee spoilers section at TV Fanatic!

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