Magnetic fields can send particles to infinity

ScienceDaily (Apr. 17, 2012) ? Researchers from the Complutense University of Madrid (UCM, Spain) have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping. One of the conditions is that the field is generated by current loops situated on the same plane.

At the moment this is a theoretical mathematical study, but two researchers from UCM have recently proved that, in certain conditions, magnetic fields can send particles to infinity, according to the study published in the journal Quarterly of Applied Mathematics.

"If a particle 'escapes' to infinity it means two things: that it will never stop, and "something else," Antonio Diaz-Cano, one of the authors, explained. Regarding the first, the particle can never stop, but it can be trapped, doing circles forever around a point, never leaving an enclosed space.

However, the "something else" goes beyond the established limits. "If we imagine a spherical surface with a large radius, the particle will cross the surface going away from it, however big the radius may be" the researcher declares.

Scientists have confirmed through equations that some particles can escape infinity. One condition is that the charges move below the activity of a magnetic field created by current loops on the same plane. Other requirements should also be met: the particle should be on some point on this plane, with its initial speed being parallel to it and far away enough from the loops.

"We are not saying that these are the only conditions to escape infinity, there could be others, but in this case, we have confirmed that the phenomenon occurs," Diaz-Cano states. "We would have liked to have been able to try something more general, but the equations are a lot more complex."

In any case, the researchers recognise that the ideal conditions for this study are "with a magnetic field and nothing else." Reality always has other variables to be considered, such as friction and there is a distant possibility of going towards infinity.

Nonetheless, the movement of particles in magnetic fields is a "very significant" problem in fields such as applied and plasma physics. For example, one of the challenges that the scientists that study nuclear energy face is the confinement of particles to magnetic fields.

Accelerators such as Large Hadron Collider (LHC) of the European Organisation for Nuclear Research (CERN) also used magnetic fields to accelerate particles. In these conditions they do not escape to infinity, but they remain doing circles until they acquire the speed that the experiments need.

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The above story is reprinted from materials provided by Plataforma SINC, via AlphaGalileo.

Note: Materials may be edited for content and length. For further information, please contact the source cited above.

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Journal Reference:

1. A. D?az-Cano and F. Gonz?lez-Gasc?n. Escape to infinity in the presence of magnetic fields. Quart. Appl. Math., August 26, 2011; 70 (2012), 45-51 [link]

Note: If no author is given, the source is cited instead.

Disclaimer: Views expressed in this article do not necessarily reflect those of ScienceDaily or its staff.

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Latest Mac Malware Attack Is a Wake-Up Call for OS X Users

Mac users were once relatively insulated from malware attacks, if only because their OS platform didn't attract the attention of criminals. But now a spike in security threats is making it clear that the bad guys are no longer ignoring Apple's OS X.

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92% The Cabin in the Woods

The Cabin in the Woods has been building an avalanche of buzz in the time it's been sitting on the shelf. Originally filmed in 2009, the horror comedy from Buffy the Vampire Slayer creative heavyweights Drew Goddard and Joss Whedon has been patiently waiting to unleash its wicked Jack-in-the-box of surprises. Directed by Goddard, and written by Whedon and Goddard, The Cabin in the Woods is a brash enterprise, a blast of entertainment and a breath of fresh air in a genre that typically teeters into self-parody. If you haven't seen the movie yet and have a strong, or even curious, desire to do so, then stop reading. Go in as blind and unspoiled as possible. Then you can come back and read my witty words. It's okay. I won't take offense. In the meantime, I'll keep myself busy. Back? Good, let's get started then. You know the setup. A group of dumb teenagers spend a weekend at a friend's cabin in the middle of nowhere. There's the jock (Chris Hemsworth), the slutty girl (Anna Hutchison), the stoner (Fran Kranz), the bookish one (Jesse Williams), and the mousy girl-next-door virginal type (Kristen Connolly). There's the scary old guy at the gas station, there's the promise of debauchery and sweet oblivion. But we're not the only ones watching the gang. A group of lab techs, led by Hadley (Bradley Whitford) and Sitterson (Richard Jenkins), is watching their every move. They control the cabin and its surroundings and are manipulating events to lead to slaughter. But why are they going to all this trouble? That's just the tip of the iceberg here. The macabre sense of humor is what will immediately separate Cabin in the Woods from its blood-and-guts brethren. The sharp dialogue is routinely laugh-out-loud funny, absurd in the right parts. Whitford's downbeat reaction during a joyous moment of celebration had me howling. The movie is so smart, sometimes too smart for its own good. If you're going to level one major charge against the movie, it's that it isn't really ever scary. Oh sure it has some stuff that should be scary given the particulars, and its 31 flavors of horror should find something that tingles everyone's spine on some level. But this is much more of a deconstruction of the horror genre and its audience than an actual horror movie. Whedon and Goddard undercut their horror almost at every turn, settling for the ironic laugh or satirical tweak and repeatedly cutting back to the lab guys to provide a few good laughs and commentary (Jenkins has a terrific foul-mouth rant aimed at children that left me doubled over in laughter). Do not be mistaken; the lab stuff is easily the best part of the movie. Upon my second viewing, I found myself growing weary with the teens-in-a-cabin stuff and anxiously waiting our next detour into the weird and wonderful lab. The duo of Whitford (TV's The West Wing) and Jenkins (Friends with Benefits) makes for some terrific and biting middle management corporate satire, as well as satirizing the jaded, bloodthirsty audience of slasher movies. You can tell that Whedon and Goddard love horror movies and are frustrated with the nihilistic rut the genre has found itself mired in. And as a deconstructive exercise, Cabin in the Woods is first-class. Roger Ebert succinctly called the movie a "fanboy final exam." It can be a tad clinical at times, failing to give us any true attachment to the characters even in an ironic sense, but when a movie I this fun, this wild, and this clever with its deconstruction of genre, I concede the point of having to root for somebody. The characters break the stereotypical mold; the jock is on academic scholarship, the smart guy happens to also be a hunky jock, the slut isn't really slutty, the virgin isn't squeaky-clean, and the stoner is the smartest guy in the group, aided by his cannabis (As one character later reasons, "We work with what we got"). He's the only one who seems to be able to notice the strange manipulations at work. Once you dig into it, the very nature of how and why we watch horror is analyzed by Cabin in the Woods (get ready for some voyeurism parallels). The nature of fear and sacrifice is given some thought, though this stuff gets a bit lost in the madhouse of a final act. The movie becomes a funhouse of horrors and the frenetic carnage and chaos elevates the energy level. I cannot think of a movie that ended in such a whirling dervish of excitement and deep, demented satisfaction. This is one movie that doesn't just end with a bang; it ends with every bang you can think of. Horror fans are going to be hopping out of the theaters, foaming at the mouth, desperate to tell every one of their friends what they just witnessed. I wish several of my friends would hurry up and see Cabin in the Woods so I had somebody to talk about its many pleasures, thrills, and surprises with. The movie has several terrific payoffs. This is the most fun I've had with a horror movie since 2003's Cabin Fever. Must be something about cabins that brings out the meta-ness. Considering this was on the shelf for over two years while MGM worked out its bankruptcy dealings, it's fun to see how fate has been to this lot of actors. The biggest name has got to be Hemsworth, better known as the flaxen, hammer-wielding God of Thunder Thor in the Marvel movies, and Whedon's upcoming Avengers ensemble. He's rather enjoyable onscreen and his hero moment is one that will definitely be a talking point. The two standouts from the cast, other than Jenkins and Whitford of course, are Connolly ("iGirl" on the Web series, iChannel) as the nubile Final Girl and Kranz (TV's Dollhouse) as the clever pothead. Connolly has got a great face for movies, looking like the younger sister of Ellie Kemper (TV's The Office) or Jayma Mays (The Smurfs), and I'm always a sucker for a redhead. Kranz is so good with the comedy that you may fail to notice all the work he's actually putting into his role, which quickly becomes the audience's voice of reason. But the strangest quirk for a movie knotted with them comes to the casting of its resident "slut" played by Hutchison. The woman has a sultry side that comes through without going overboard into parody. Scanning through her resume, I see that Hutchison portrayed the Yellow Power Ranger (Lilly) for 32 episodes in Power Rangers: Jungle Fury. Now here's where things get interesting. Being the movie aficionado that I am, I recognize that Cabin Fever also had an actress, Cerina Vincent, who portrayed the Yellow Power Ranger (Maya) for 45 episodes in Power Rangers: Lost Galaxy. Here's where it gets even weirder. Both Hutchison and Vincent are the only cast members in their movies to go nude in their respective films. So two actresses, both different versions of the Yellow Power Ranger, both get naked and star in horror genre deconstructive movies with "cabin" in the title! Is this one of the Mayan signs? Does it say something that the yellow ranger appears to be the most comfortable with nudity? Should I contact Dan Brown? This may be the greatest and most obscure observation I've ever made. Of course there are so many fun surprises that it puts me in a bit of a critical bind. I don't want to go into too much detail because that would spoil the fun, though rest assured that The Cabin in the Woods does not live or die based upon unknown plot twists. You may think you know given what's already been revealed via the trailers, but really you have no idea how deep this thing goes and to what ends. Unless you just happened to be me, which at last count there was only one of (my evil twin long since slain... or was he?). I say this not as some point of pretentious bragging, but it's because I wrote a horror screenplay a year ago that also satirized the genre tropes (for those few interested, it was called Blood Wake). I won't go into spoiler detail, but both of our bad guys were called into question as being bad, from a greater good standpoint, and the killers had more on their minds than simply punishing dumb, horny teenagers. Well, after watching Cabin in the Woods, I know that screenplay goes back in the shelf now where it will live in eternal slumber thanks to core similarities. But if somebody's got to be wielding the knife, at least it's my man crush Joss Whedon. Nate's Grade: A-

April 16, 2012

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Fans taunt Bruins goalie Tim Thomas for White House snub

Fans held up images of President Obama to taunt Bruins goalie Tim Thomas at the NHL playoff game in Washington. The Bruins beat the Capitals 4-3.

With Boston Bruins goalie Tim?Thomas back in the nation's capital, Washington Capitals fans weren't going to let him forget his skipped trip to the White House.

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At Game 3 of the Bruins-Capitals playoff series Monday night, several spectators showed up with pictures of President Barack Obama and signs taunting Thomas. In January, he didn't show up when the rest of the Bruins were invited to the Stanley Cup champions' traditional visit to the president's office.

Thomas, born in Michigan, said at the time he believes the federal government "has grown out of control."

Most of the Obama signs were displayed by fans sitting near the glass behind the net Thomas defended in the first and third periods of Monday's game.

RELATED: Tim Thomas and six other athletes who snubbed the White House

What happened in Monday night's game? Thomas made 29 saves and ignored the taunting from fans.?

Suddenly, Bruins-Capitals turned into Flyers-Penguins, replete with scraps and all sorts of scrums ? not to mention quite a bit of offense thrown in.

From the high stick that knocked off Boston captain Zdeno Chara's helmet, to the cross-check to Rich Peverley's face at game's end that earned a match penalty for Washington's Nicklas Backstrom, and all sorts of mayhem in between, Game 3 "was kind of like a rugby game," Capitals coach Dale Hunter said.

"The only thing that's disappointing for me personally is that this is the third time in three games our player has been cross-checked in the face. ... You hope that those things don't get out of hand," Bruins coach Claude Julien said. "Somebody else, not us, has to deal with that."

Thanks to Chara, the Bruins came out on top.

Chara scored the tiebreaking goal during 4-on-4 play with less than 2 minutes left, and the reigning Stanley Cup champion Bruins finally solved playoff rookie goalie Braden Holtby, beating the Capitals 4-3 Monday night to take a 2-1 lead in the first-round Eastern Conference series.

"It's getting more emotional," Chara said. "Players are more involved. It's starting to be more and more physical."

The 6-foot-9 owner of a 100-plus mph slap shot was involved in pretty much every key play: He was in the penalty box when Alexander Semin scored the game's first goal for Washington; he had two assists; and his final shot from the right circle appeared to get deflected by Capitals defenseman Roman Hamrlik ? "Lucky goal," Hunter said ? on its way past Holtby.

"It was nice to see him get that. He got clipped there in the head; a little frustrated from the non-call. He had a penalty early in the game for I thought just holding his own," Julien said. "So he's been good at not getting frustrated at those things. Because he stays with it, he ends up getting rewarded with a big goal."

Game 4 is Thursday in Washington, before the best-of-seven series moves back to Boston for Game 5 on Saturday.

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Maria and Derek 'sell out' on 'Dancing'

ABC

Derek Hough and Maria Menounos share a kiss during their performance on "Dancing With the Stars."

By Ree Hines

Latin Night turned into Something to Prove Night on Monday's "Dancing With the Stars" as several of the resident celebs hoped to wipe away last week's dance-floor disasters with one memorable performance.

For Melissa Gilbert, that meant proving she could move across the dance floor at all after sustaining a concussion and whiplash last week. (She can.) For William Levy, it meant proving that he could overcome a one-off dud of a dance and a recent injury of his own. (Oh boy, can he!) Of course, Gavin DeGraw just needed to prove that he should still be in the competition at all after putting on dud after dud. (Umm ...)

But there was one head-scratcher in the night's unofficial theme: Just what was it that actress and TV presenter Maria Menounos and pro partner Derek Hough had to prove?

There must have been something, because despite frequent high scores and a steady stream of praise from the panel, the pair put on by far the most desperate dance of the night.

Sure, it's not unusual for an act to pull out all the stops to get a few more viewer votes -- it's just common sense. But rather than simply rely on a shirt-free look from him and some extra sex appeal from her (which they certainly employed), Maria and Derek took it to the point of distraction. Subtlety went out the ballroom window as the duo even went so far as to share a no-doubt-about-it, way-too-long smooch that literally caused them to momentarily cease the salsa action.

Thankfully the lip lock didn't aggravate the accident-prone star's latest injury -- a smashed chin -- but it did earn her some criticism. Judge Carrie Ann Inaba played the part of the self-processed "fuddy-dud" and warned the pair that "dance is about the illusion of passion" before dubbing the big kiss a "sell-out" move.

Sell-out or not, the judges didn't deduct for it. Maria earned a set of 9s. Whether or not she earned approval from voting viewers remains to be seen.

From the nothing-to-prove side of the dance floor, this season's "Dancing" queen, Katherine Jenkins, wowed the crowd with her precise Argentine tango by simply nailing all the moves in Mark Ballas' beautifully choreographed routine.

For that, Katherine nabbed 29 points (tying her with William's top tango offering of the night).

Just two points behind the leaderboard toppers but miles behind them when it came to moves on Monday night, was Green Bay Packers wide receiver Donald Driver.

Donald looked good on the stage, as he always does, and pulled off the best lifts of any Argentine tango of the night, but the problem was with the rest of the dance. While the fault lies with the choreography from his pro partner, Peta Murgatroyd, he spent much of the rest of the dance walking and performing far too few flicks.

As head judge Len Goodman put it, "I thought the lifts were spectacular. But the rest of it? Nearly, but not quite."

Another two points farther down the scoreboard was Disney star Roshon Fegan. His salsa lacked some of the requisite booty shaking, but he made up for it with well-timed moves that mostly pleased the panel.

From there, the high points were few and far between.

Jaleel White shook his way through an uneven samba for 24 points. Gladys Knight racked up a beyond-generous 22 for her cute, confident and unfortunately flub-filled samba. And Melissa's 21-point salsa, along with Gavin's 19-point samba, rounded out the back of the pack

After a night highs and lows, who can fans expect to see go on Tuesday night? That's up to the judges to decide -- sort of. While fans will vote as usual following Monday's show, they'll chime in only on the overall rankings. As host Tom Bergeron first warned fans two weeks ago, a new Dancing Duel twist means that for the next three weeks, when it comes down to the bottom two, Len and the gang will decide who gets the boot based on one final dance. It should be interesting.

Unless the bottom two is anyone vs. Gavin, in which case it shouldn't be an interesting decision so much as a really easy one.

What did you think of Monday night's performances? Did Maria and Derek seem desperate to you? Did all the stars prove their dancing points? Share your thoughts on our Facebook page.

{"contentId":"11232398","totalVotes":"12147"}

Who do you think will be in the bottom two?

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Related content:

Gavin	? 41% (4,986 votes)
Gladys	? 31.1% (3,778 votes)
Melissa	? 10.9% (1,330 votes)
Jaleel	? 7.1% (857 votes)
Roshon	? 3.9% (473 votes)
Maria	? 2.6% (321 votes)
Donald	? 1.8% (221 votes)
William	? 0.8% (100 votes)
Katherine	? 0.7% (81 votes)

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Important Samsung Galaxy Note GPS Programs - Communications ...

From the time of GPS location search introduction, to find new places have now become even easier. When you use the World Wide Web, you will never say that you have lost the way. Using other features in the Samsung Galaxy Note smartphone and the Android GPS apps, you can find places or indicate to your colleagues where you are situated. The fun thing about using GPS apps is that you can use them while on the go and they will run simultaneously with every distance covered and turn made. Here are a few of the best GPS apps that you can use in your smart phone.

Google maps is irrefutably the top app to get since is an Android product. Besides, it is even updated and it has other vast mapping for different places even in the entire world. Before we go further, you should bear in mind as you seek to use your GPS apps to find location you are heading to, you need to have a Samsung Galaxy Note case that will help keep your mobile protected from all sorts of damage.

Another GPS app worth getting is Glympse. If you activate your phones GPS locator, you can inform your pals of where you are located. They can use the Glympse app to find you and vice-versa. My Tracks is a cool and nifty app worth a try. As you go about your location search and move, the app will monitor on your movement mapping the routes you take, distance coverage and even your travel speed.

Loopts is a GPS app that has a popularity that is close to that of Google maps. This is common for many people who like to keep in touch using social network. This apps can let you keep track of where your friends are and you can get the pop up updates for the online activities from the site. A cool GPS app is Locale. The name shows what the apps is able to do. When you are using it to get the place, road or building, the apps can include some extra features. In case you are a social person, it will be easier for you to inform your friends with the message prompts about where you may be.

If you plan to have a trip, you should consider having a Samsung Galaxy Note screen protector on your display even before you set off. For such trips, getting the wise pilot GPS app would come in handy. This GPS app is an excellent product that has good mapping features and voice active for direction as you travel.

You can use your Samsung Galaxy Note accessories like hands-free to have a listen as you drive. The only issue to this app is that it is not free and on top of that, it does have a slightly priced tag. To get such GPS apps, you can try to visit the Android apps store to look for the GPS apps. You can find that you need to buy some of these apps while others can come free.

Learn more about Samsung Galaxy Note accessories and the different types of accessories available at Think Mobile Solutions. We stock hundreds of Samsung Galaxy Note screen protectors, chargers, cases and other accessories.

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What?s In A Name? Australia Wants Apple To ?Change The Name? Of The iPad Over 4G Incompatibility

Looks like we may see another development today in Apple's ongoing iPad/4G controversy in Australia. The country's Competition and Consumer Commission is meeting with Apple in court again today to try to get Apple to officially change the name of the device when it is sold in Australia. Although many people know it as "the new iPad" since launching the product in March, Apple has also been marketing the product as the new iPad with 'Wi-Fi +4G' in the country. But Apple quickly ran into trouble when the ACCC said Apple was misleading consumers: in fact, the tablet is not actually compatible with Australia's 4G network. Since then, Apple has agreed to refund consumers who bought the device thinking they were getting 4G; and the company has also been putting up notices wherever the iPad is sold warning them that it didn't work with Australia's 4G. But the ACCC, it seems, does not think that this goes far enough.

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