MAHA-USA: Nothing But The Best In Automotive Lifts | Automotive ...

The purchase of automotive lifts needs to be preceded by certain crucial considerations. The first and foremost of these revolves around the universal question of quality. Automotive lifts, like everything else, can vary in quality depending on a number of factors, one of which being the manufacturer.

This is why you should consider the high-quality, durable automotive lifts available from MAHA. The American subsidiary of a German company named Maschinenbau Haldenwang, MAHA-USA is accurately synonymous with greatness. It is no coincidence that maha is also the Sanskrit word for great.

If, on the other hand, you were to examine for yourself the quality of the automotive lifts manufactured MAHA USA, you would wonder if its naming was co-incidental.

Apart from standing out in terms of quality and safety, the automotive lifts manufactured by MAHA-USA also reflect the company?s proud commitment to innovation and its ability to connect to the pulse of its market.

Depending on whether your needs revolve around a two-post, four-post, or scissor lift, MAHA-USA has a wide variety of options available to you. In addition, at MAHA-USA, you can purchase some of the finest quality in-ground and specialty automotive lifts that are custom tailored to fit your shop?s needs and configurations.

Among the two-post automotive lifts featured on the MAHA-USA roster, is the HL Freedom 12000. Capable of lifting cars, vans, pick-up trucks, and SUVs up to 12000 lbs, this lift is a marvel of American-made German engineering. Its oversized arm pins prevent arm sag caused by premature wear. In addition, through a secure arm-locking system that is recognized as the best in the industry, the HL Freedom 12000 offers permanent self-monitoring of all safety functions as well as electronic/hydraulic synchronization that does not require equalizing cables. The enormous scope of the HL Freedom 12000 has established itself as one of the finest products in the automotive lifts market.

If you wish for something lighter, consider the Twin7000, a double scissor lift designed for vehicles weighing 7000 lbs or less. With a mechanical integrated lock system for safety, and flip-up ramps for additional platform space, this wonder among automotive lifts combines durability and portability in the most efficient manner. In addition, its space-saving design makes it possible to install five Twin 7000s in the same area as four two-post lifts.

So if you are finding that your garage is too low or short on space, the Twin series is the lift for you.

With products such as this, it is easy to see why MAHA-USA gained a leader reputation in this field. As the US subsidiary of a global giant, this renowned manufacturer of automotive lifts has an international market share of approximately 40 percent. With an international workforce of over 1000 employees, including some of the finest engineering minds, the MAHA Group prides itself with being at the forefront of innovation and quality.

For more information on high-quality US-made, German-engineered automotive lifts, visit maha-usa.

Source: http://www.riredistricting.org/maha-usa-nothing-but-the-best-in-automotive-lifts.html

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Android hardware failure rate higher than iPhone and Blackberry (Digital Trends)

Decayed AndroidNot all smartphones are created equal, and now WDS has proven that not all Android phones are created equal. During a year-long study of customer service support calls it was discovered that more Android phones suffered from hardware failures than iOS, BlackBerry, and Windows Phone 7. Android phones also cost carriers $2 billion dollars a year in replacement costs.

Tim Deluca-Smith, WDS VP of marketing, points out that it is now an issue with the Android OS, but instead it is an issue with the physical devices. The problem seems to be the fact that so many companies are coming out with low cost Android devices, and it is these low cost devices not the best ones that are increasing the total failure rate. Deluca-Smith says that Android?s, ?openness has enabled the ecosystem to grow to a phenomenal size, at a phenomenal rate, and it?s this success that is proving challenging.?

The study lasted 12 months, and tracked 600,000 tech support calls handled by WDS. Of all the technical support calls for Android phones 14 percent of the calls were due to hardware failure. In a close second is Windows Phone with 11 percent of calls, Apple?s iOS had seven percent, and RIM?s BlackBerry had the least with only six percent. It should be noted that the operating systems with the highest failure rate are also the ones that do not make hardware.

Android is the most popular OS of the four compared, so it is no surprise that it cost the carrier the highest total amount due to hardware issues. The study did not provide any numbers for the cost of repairing or refunding any other devices.? As a consumer do not take this as a warning against buying Android phones, but it should make you think about the quality of the phone you are buying before you enter into a two year contract.

?Image courtesy of Gizmodo.

This article was originally posted on Digital Trends

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Source: http://us.rd.yahoo.com/dailynews/rss/personaltech/*http%3A//news.yahoo.com/s/digitaltrends/20111103/tc_digitaltrends/androidhardwarefailureratehigherthaniphoneandblackberry

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Twitter changes business of celebrity endorsements (AP)

NEW YORK ? Rapper Snoop Dogg gave props on Twitter to an ad for the Toyota Sienna minivan. Actress Tori Spelling linked to a website for rental cars. And reality TV star Khloe Kardashian soliloquized about the brand of jeans that accentuates the famous Kardashian derriere.

"Want to know how Old Navy makes your butt look scary good? Ask a Kardashian," the reality TV star wrote, or tweeted, on the social media website. Of course, she capped off the reflection with a smiley face.

These celebs aren't just writing about family cars and fashion choices for the heck of it. Stars can get paid big bucks ? sometimes $10,000 or more per post ? to pontificate about clothes, cars and movies in the 140 characters or less allowed per tweet. That's adds up to about $71 per character.

Twitter, which in its five-year existence has reshaped how people shop, vote and start revolutions, is now changing the business of celebrity endorsements. Just as Match.com and eHarmony pair up singles for dates, a growing number of startup firms are hooking up companies with stars who get paid to praise products to their thousands ? sometimes millions ? of Twitter followers.

The list of celebs and the things they hawk is long and getting longer all the time. The endorsements range from subtle to blatant; the celeb pairings from sensible to downright odd.

Singer Ray J urged his 600,000-plus Twitter followers to see the horror movie "Saw 3D." Football star Terrell Owens gave a shout-out in front of his more than 1 million followers to a hotel chain giving away sports tickets: "Comfort Inn is hooking up 3 days of it!" Lamar Odom, L.A. Lakers forward, tweeted to his nearly 2 million followers about hip-hop artist and entrepreneur Jay-Z's book "Decoded": "My man Jay-Z ... only rapper to rewrite history without a pen. Until now."

Of course, anything on Twitter is short-lived and reaches only a small, self-selecting audience: Research firm eMarketer estimates that only 11 percent of U.S. adult Internet users are on the micro-blogging site. And even though some celebs have faithful groups of followers, it can be hard to measure whether their tweets lead people to spend.

Still, celeb tweets can be a way to grab a captive audience at a time when many people are skipping TV commercials with their digital video recorders. And paying a celeb to tweet is much cheaper than a traditional advertising campaign. Want a tweet from Khloe Kardashian? That will cost about $8,000, according to prices listed by social media marketer Izea. Looking for a cheaper option? Ray J is about $2,300.

Companies like Izea, Ad.ly and twtMob usually pair products with celebs through a combination of software algorithms and Hollywood instinct. The companies say they use many metrics to gauge the effectiveness of a paid tweet, such as the number of times it gets reposted by others.

When Ad.ly got Charlie Sheen to tweet for Interships.com in March, the actor was in the midst of getting fired from his sitcom "Two and a Half Men" over accusations of hard partying and drug use. Within an hour of Sheen's first post, Internships.com got more than 95,000 clicks.

"I'm looking to hire a (hash)winning INTERN with (hash)TigerBlood," tweeted Sheen, who had just recently signed up for Twitter and now has more than 5 million followers.

Dan Smith, vice president of marketing for the website CampusLIVE, which helps advertisers connect with college students, hired Izea to help him get a celebrity to tweet about his company. Izea gave him a short list, which included names like "Jersey Shore" reality TV star JWOWW, comedian Michael Ian Black and rapper Bow Wow.

Smith polled his interns and they picked Lindsay Lohan, the actress most famous for her run-ins with the law. According to Smith, CampusLIVE paid Lohan about $3,500 for one tweet: "These challenges for college kids on (hash)CampusLIVE are SO addicting!"

The post to Lohan's 2.6 million fans drove about 4,500 clicks to the website, Smith said. But he also said he wasn't sure if he'd use her again ? not because of her troubles, but because he's already tapped her fan base. His interns wanted to know if comedian Will Ferrell is available. Said Smith: "That would be a cool one to get."

For the record, Ferrell isn't on Twitter, says his spokesman, Matt Labov, who adds that the Twitter handles sporting his name are "imposters."

For her part, Lohan on her own time tweets about topics like fulfilling her community service sentence. But she has also posted comments for Izea on a few occasions, the company says. Her tweets about wind energy ("While saving the world ... save money! I love it!") and about a gold mining company ("R ur savings safe? Think again!") were paid endorsements, according to Izea's website.

Those posts, along with the CampusLIVE tweet, included the characters "(hash)ad" at the end, which indicates that a post is a paid endorsement. But Lohan's publicist, Steve Honig, says that Lohan does not "sell" her tweets: "She uses Twitter to communicate with her fans and let them know what she's up to."

Like any endorsement, celeb tweets come with the risk that a star's behavior will not coincide with the company's image. And of course, there's a science to picking the right one: Will consumers buy that their favorite rapper drives a minivan?

Twitter generally allows the paid tweets, as long as they're posted manually and not automated by a computer program. The Federal Trade Commission suggests endorsers end their tweets with the (hash) symbol, called a hash tag, and the letters "ad" or "spon," short for "sponsored by," to clarify that they're ads.

"The more transparent you are with your audience on Twitter, the more powerful that connection is," said Rachael Horwitz, a company spokeswoman.

Ed Aranda, a 27-year-old graphic designer and copy writer in Erie, Pa., doesn't like celebs mining their fans' trust to sell a product. Still, he thinks those reading the tweets should take responsibility.

"If you can't tell snake oil when it's being sold to you," Aranda said, "then you probably deserve what you're buying."

___

AP Business Writer Michelle Chapman contributed.

Source: http://us.rd.yahoo.com/dailynews/rss/tech/*http%3A//news.yahoo.com/s/ap/20111103/ap_on_hi_te/us_celebs_paid_tweets

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Vatican stunned by Irish embassy closure (Reuters)

VATICAN CITY (Reuters) ? Catholic Ireland's stunning decision to close its embassy to the Vatican is a huge blow to the Holy See's prestige and may be followed by other countries which feel the missions are too expensive, diplomatic sources said on Friday.

The closure brought relations between Ireland and the Vatican, once ironclad allies, to an all-time low following the row earlier this year over the Irish Church's handling of sex abuse cases and accusations that the Vatican had encouraged secrecy.

Ireland will now be the only major country of ancient Catholic tradition without an embassy in the Vatican.

"This is really bad for the Vatican because Ireland is the first big Catholic country to do this and because of what Catholicism means in Irish history," said a Vatican diplomatic source who spoke on the condition of anonymity.

He said Ireland informed the Vatican shortly before the announcement was made on Thursday night.

Dublin's foreign ministry said the embassy was being closed because "it yields no economic return" and that relations would be continued with an ambassador in Dublin.

The source said the Vatican was "extremely irritated" by the wording equating diplomatic missions with economic return, particularly as the Vatican sees its diplomatic role as promoting human values.

Diplomats said the Irish move might sway others to follow suit to save money because double diplomatic presences in Rome are expensive.

It was the latest crack in relations that had been seen as rock solid until a few years ago.

DAMNING REPORT

In July, the Vatican took the highly unusual step of recalling its ambassador to Ireland after Prime Minister Enda Kenny accused the Holy See of obstructing investigations into sexual abuse by priests.

The Irish parliament passed a motion deploring the Vatican's role in "undermining child protection frameworks" following publication of a damning report on the diocese of Cloyne.

The Cloyne report said Irish clerics concealed from the authorities the sexual abuse of children by priests as recently as 2009, after the Vatican disparaged Irish child protection guidelines in a letter to Irish bishops.

While Foreign Minister Eamon Gilmore denied the embassy closure was linked to the row over sexual abuse, Rome-based diplomats said they believed it probably played a major role.

"All things being equal, I really doubt the mission to the Vatican would have been on the list to get the axe without the fallout from the sex abuse scandal," one ambassador to the Vatican said, on condition of anonymity.

Cardinal Sean Brady, the head of the Catholic Church in Ireland, said he was profoundly disappointed by the decision and hoped the government would "revisit" it.

"This decision seems to show little regard for the important role played by the Holy See in international relations and of the historic ties between the Irish people and the Holy See over many centuries," Brady said in a statement.

The Vatican has been an internationally recognized sovereign city-state since 1929, when Italy compensated the Catholic Church for a vast area of central Italy known as the Papal States that was taken by the state at Italian unification in 1860.

It has diplomatic relations with 179 countries. About 80 have resident ambassadors and the rest are based in other European cities.

The Vatican guards its diplomatic independence fiercely and in the past has resisted moves by some countries to locate their envoys to the Holy See inside their embassies to Italy.

Dublin said it was closing its mission to the Vatican along with those in Iran and East Timor to help meet its fiscal goals under an EU-IMF bailout. The closures will save the government 1.25 million euros ($1.725 million) a year.

(Additional reporting by Carmel Crimmins and Conor Humphries in Dublin; Editing by Tim Pearce)

Source: http://us.rd.yahoo.com/dailynews/rss/world/*http%3A//news.yahoo.com/s/nm/20111104/wl_nm/us_vatican_ireland

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Petty controversy: Is Jon Huntsman really fluent in Chinese? (The Week)

New York ? According to his resume, the Beijing-ambassador-turned-presidential-hopeful speaks perfect Mandarin. According to Chinese speakers, not so much

The controversy: It's no secret that struggling GOP presidential hopeful Jon Huntsman served as President Obama's ambassador to China, and that he speaks Mandarin. "But is Jon Huntsman really fluent in Chinese?" asks Geoffrey Sant at Slate. "The answer seems to be no." When Comedy Central's Stephen Colbert asked Huntsman to show off his linguistic abilities on The Colbert Report, Huntsman rattled off a sentence to the audience's delight. His translation: "I just said you ought to consider being my running mate for vice president." But other Mandarin speakers say Huntsman mangled the language, saying something closer to, "I really want you to do my vice-America president."

The reaction: Give the man a break, says Joshua Keating at Foreign Policy. "He might be exaggerating his abilities a bit," but it sounds like he can at least make himself understood. Even if he spoke perfectly, it's not like "Xi Jinping would be so impressed he'd forgive America's debts and let the yuan float on the spot." This wasn't Huntsman's only mistake, though,?says Joel Herrick at Shanghaist.?On CNN, Huntsman absurdly referred to himself in Mandarin as "Mr. Jon Huntsman,"?which, as Sant points out, sounds to a Chinese speaker like "the esteemed Mr. Huntsman" sounds to us. Some say "any publicity is good publicity," says James Crugnale at Mediaite. But somehow I doubt that this revelation will lift the former Utah governor's "0 percent national polling."

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Source: http://us.rd.yahoo.com/dailynews/rss/oped/*http%3A//news.yahoo.com/s/theweek/20111103/cm_theweek/221028

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G-20 rejects extra help for debt-strapped Europe (AP)

CANNES, France ? The G-20 summit ended in disarray Friday without additional outside money to ease Europe's debt crisis and new jitters about Italy clouding a plan to prevent Greece from defaulting.

In Athens, meanwhile, Greece's prime minister survived a confidence vote in parliament, calming a revolt in his Socialist party with a pledge to seek an interim government that would secure a vital new European debt deal.

In the end, only vague offers to increase the firepower of the International Monetary Fund ? at some later date ? were all the eurozone leaders were able to take home after two days of tumultuous talks.

With their own finances already stretched from bailing out Greece, Ireland and Portugal ? and the United States and other allies wrestling with their own problems ? eurozone countries had been looking to the IMF to help line up more financing to prevent the debt crisis from spreading to larger economies like Italy and Spain.

Italy's fate in particular is crucial to the eurozone, because its economy ? the third-largest in the currency union ? would be too expensive to bail out. The implications for the world economy are stark: The debt crisis that has rocked the 17-nation eurozone threatens to push the world economy into a second recession.

European leaders could point to one potential catastrophe averted: They stared down Greece's prime minister and berated him into scrapping a referendum that threatened their European bailout plan. Greece's politics are in upheaval as a result, but the shaky bailout plan appears back on track ? for now.

"We want Europe to work," French President Nicolas Sarkozy said on French TV when the summit was over. "I think today we can have confidence ... but that's not to say our troubles are behind us."

In the end, the Greek question completely derailed Sarkozy's aim of using the summit to show that Europe had sorted out its debt problem once and for all ? and possibly convince some of them to pitch in to the rescue effort.

In the space of days, the already shrunken list of goals set out by France to close out its year as head of the G-20 was scrapped, replaced by a nearly constant stream of shocking new developments and reversals in Europe's long-running attempt to get control of Greece's debt crisis.

That reality was perhaps best illustrated at the height of the summit Thursday evening, when hundreds of journalists dropped what they were doing in the basement of Cannes' Palais des Festivals and gathered around television screens to watch a live transmission from the Greek parliament in Athens, where Prime Minister George Papandreou was speaking.

The week of unending drama in Athens horrified its European partners, spooked global markets and overshadowed the summit in Cannes. The threat of a Greek default or exit from the common euro currency has worsened the continent's debt crisis.

When the week started, Europe had finally reached an intricate, ambitious and fragile deal to try to rescue Greece and stop the crisis from spreading any further. The G-20 summit was supposed to solidify and clarify the deal and get the world economy back on the right track.

Then Monday night, Papandreou shocked his European partners and domestic allies by announcing he would put the plan to a referendum. Markets panicked, as did many of the leaders coming to Cannes.

Sarkozy and German Chancellor Angela Merkel held a series of frenzied meetings, then summoned Papandreou on Wednesday. If you lose this referendum, you could lose the euro, they told him. And they froze a new euro8 billion loan that Greece will soon need to pay government salaries.

On Thursday, Papandreou backed down and abandoned the referendum. The U-turn left his 2-year-old government teetering.

Now Europe's leaders may find it is impossible to take back the shocking admission by Sarkozy and Merkel that an exit by Greece from the eurozone was no longer unthinkable.

And even as U.S. President Barack Obama, Chinese President Hu Jintao and other leaders struggled to make sense of the Greek drama's fast-shifting plot, another flashpoint emerged in Italy.

Market confidence in Italy's ability to reduce its public debt and spur growth in its anemic economy has withered over recent weeks as the government weakened. Lawmakers have defected to the opposition and some of Prime Minister Silvio Berlusconi's ministers have openly suggested the government's days may be numbered.

Market fears mounted on Friday in the wake of the confusion about Greece. Italy's benchmark 10-year bond yield jumped 0.32 of a percentage point to 6.43 percent, indicating a surge in investor worries about the country's ability to repay its debts.

The need to reassure bond markets led Italy to agree to submit to IMF scrutiny.

The IMF said it will monitor Italy's financial reform efforts, a humbling step for one of the world's biggest ? but also most indebted ? economies.

To solve the political deadlock that threatens to bring down his government and slow down implementation of reforms, Berlusconi said he had asked the IMF to check up on the country's progress in implementing the measures with periodic, public reports.

The most likely way the eurozone could still get additional financing is through a special account under the auspices of the IMF, into which individual countries could make payments.

Those investments in turn could then be used to boost the eurozone's own bailout fund, the euro440 billion ($606 billion) European Financial Stability Facility. That way, countries such as the United States, which think Europe should pay for its own financial problems, wouldn't have to put any money in. And countries like Russia and Brazil, which have expressed interest in investing in the eurozone, could.

But Merkel and IMF chief Christine Lagarde both said not a single country at the two-day meeting made a firm commitment to participate.

___

Gabriele Steinhauser, Jamey Keaten, Joe McDonald and Angela Charlton in Cannes contributed to this report.

Source: http://us.rd.yahoo.com/dailynews/rss/eurobiz/*http%3A//news.yahoo.com/s/ap/20111105/ap_on_bi_ge/eu_g20_summit

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Caching bug in iOS 5 Safari

On some websites, like CNN shown in the video above, when I hit “back” to return to the previous page, instead of getting the previous page I get a version of the previous page that’s from some time in the past, as much as a day or so. I’ve...

Source: http://feedproxy.google.com/~r/TheIphoneBlog/~3/jcYseY1a9sc/story01.htm

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Abukai Expenses

Abukai Expenses is a knock-your-socks off mobile app that reinforces just how mobile device apps can change our lives in ways other than making us Angry Bird addicts. Abukai, available for Android, iPhone, and BlackBerry, is an excellent app for anyone who has to perform the mundane task of filing business expense reports. Expense reports are filed in three easy steps that require users to type in nary a character: take a picture of your receipt from a smartphone, submit it, and receive your finished expense report. Customization capabilities and integration with back-end financial systems makes this one of the hottest mobile apps and cloud service solutions for any business with employees who must submit expenses. It's not a cheap service, but if you have a lot of expenses to track, it's a great buy.

How to Get It
Interested users can try Abukai for a 30-day free trial. To get started, the app is downloaded from Apple's App Store, Blackberry App World and the Android Market. Pricing starts at $39 a year for an individual; corporate accounts have a one-time charge of $49 plus $99 per seat.? There are also custom plans available which are priced accordingly.

Users must configure settings on the app, such as which email addresses to send or forward expense reports to, and the currency in question?great because if you travel internationally, as expenses are automatically adjusted to your home currency.

Testing
The app opens to a simple interface with two options: "Add Receipt" and "Submit." Clicking on "Add Receipt" initializes your phone's camera. I tested taking pictures of some really wadded up, crinkled, fished-from-the-bottom-of-my-purse receipts with my Droid 2. The app makes suggestions on taking the best pic and, once your pics are snapped, asks if you want to use the picture, retake it or cancel.

Users then click the second button in the mobile UI "Submit." Doing so, causes the message box, "Would you like to get this expense report processed per your company?s rate plan?" to open. Clicking "yes" processes and uploads the receipt.

After a successful upload of about five dilapidated receipts, I received the message, "You should receive your finished expense report by email within the next 24 hours." However, I received my finished expense report in 10 minutes. Yes, this could be because I was doing a review for PCMag and the vendor was watching out for my test report, but I think 24 hours is a reasonable timeframe to get an expense report back, anyway.

The report was sent to my email account (the one I defined in the app settings) as an attachment. Actually, it was sent as several attachments: in a PDF file as well as in .XLS, .CSV, .OFX and .QBO formats. This is forward-thinking on the part of the Abukai developers. At least one of these file formats should be able to get imported into the more common back-end financial and accounting systems that most businesses already have deployed.

I took a look at the Excel formatted expense report. The information from the pictures I took has been sorted by the vendor name on each receipt, pricing information, location and the Abukai service even correctly categorized two of my receipts as groceries. The others which it could not identify a category for (one was a shoe store) had that field blank.

This is okay, because another great user component is the User Portal. This is accessed via Abukai's website?users do need to setup a login account for access. In the portal, you can fine-tune submitted reports. For instance I could add categories that were left blank in my finished report. There is also a nice graphical representation in the form of a pie chart that allows users to see which category the bulk of expenses fall under (you can keep an eye on those entertainment expenses!).??

An Accounts Payable Revolution
I have been looking at a number of impressive Android apps of late and Abukai is right there at the top of the list. I was blown away by the accuracy of the translation of data from a camera phone image into an expense report file. It's Optical Character Recognition (OCR) on steroids.

Abukai Expenses is a great way for employees to quickly submit expense reports and to track mileage, a feature recently introduced. Employers can offer a faster turnaround time for employee reimbursement as well as introduce an automated way to import expense data into the accounting system. The $99 per seat price may be expensive for some companies who may not have a large volume of expense reports to file and may just rely on Excel spreadsheets for that purpose.

However, if you spend lots of time on the road, or your business processes a large volume of expense reports?and especially if manual labor is involved getting those reports processed?then Abukai deserves a look. It's an easy 4.5 star Android app and an obvious Editors Choice for business users.

More Mobile App Reviews:??? Gmail (for iPhone)??? Skype 3.5 (for iPhone)??? Dragon Go! (for iPhone)??? Baking with Dorie (for iPad)??? Smartr Contacts for Android?? more

Source: http://feedproxy.google.com/~r/ziffdavis/pcmag/~3/02b327v6FFU/0,2817,2395848,00.asp

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Navy's electromagnetic railgun reaches testing milestone

[ Back to EurekAlert! ] Public release date: 1-Nov-2011
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Contact: Donna McKinney
donna.mckinney@nrl.navy.mil
202-404-3322
Naval Research Laboratory

The U.S. Naval Research Laboratory Materials Testing Facility demonstrated, Oct.31, the one-thousandth successful firing of its Electromagnetic Railgun, reaching a materials testing milestone in the weapon's technological development and future implementation aboard U.S. Navy warships.

"This test demonstrates continued advances in armature development, rail design, and barrel materials used in high power railgun launch," said Dr. Robert Meger, head, NRL Charged Particle Physics Branch. "Firing up to 15 shots per week on the laboratory's experimental railgun, researchers at NRL perform detailed testing and analysis of rails and armatures, providing S&T expertise to the Navy program that is directly applicable to tests at large-scale power levels."

Many of the 1000 shots taken on the Materials Testing Facility railgun have been designed to test different barrel designs and to quantify damage generated during high power launch. The innovations and understanding generated by NRLs' S&T program have been fed directly into the Office of Naval Research's Electromagnetic Railgun program and transferred to full-scale tests conducted at the Naval Surface Warfare Center, Dahlgren, Va.

A railgun is a form of single turn linear motor. Magnetic fields generated by high currents driven in parallel conductors, rails, accelerate a sliding conductor, known as an armature, between the rails. The velocity generated by the system is limited by rail strength and armature materials and their response to the high currents and extreme pressures generated during launch.

At launch, heat deposited in the armature and near the surface of the rails due to high currents and friction, or. viscous heating generated at the sliding interface, leads to temperatures sufficient to melt most metals including the armature material. If the heating and extreme pressures also damage the rail surface, it can destroy the contact surface and condemn the gun barrel. NRL S&T research has pioneered multiple barrel and armature designs that minimize or mitigate this damage even during successive high power launches.

First fired March 6, 2007 at a magnitude of 0.5 megajoules, the railgun system at NRL has been modified and enhanced over the last four years to operate routinely at a 1.5 megajoule launch energy a megajoule is a measurement of kinetic energy associated with a mass traveling at a certain velocity. In simple terms, a one-ton vehicle moving at 100 mph has approximately one megajoule of kinetic energy.

"A railgun weapons system must be able to launch hundreds of projectiles and withstand extreme pressures, currents and temperatures," said NRL Commanding Officer, Capt. Paul Stewart. "Today's firing of the one-thousandth shot demonstrates Navy researchers are steadily progressing toward achieving that goal, developing a more effective and efficient future ship combat system."

###

The Railgun Materials Testing Facility railgun focuses on materials issues for a major Navy effort to develop a long-range, electromagnetic launcher for a future electric ship. The NRL Plasma Physics Division conducts a broad program in laboratory and space plasma physics and related disciplines, high power lasers, pulsed-power sources, intense particle beams, advanced radiation sources, materials processing, and nonlinear dynamics.


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[ Back to EurekAlert! ] Public release date: 1-Nov-2011
[ | E-mail | Share Share ]

Contact: Donna McKinney
donna.mckinney@nrl.navy.mil
202-404-3322
Naval Research Laboratory

The U.S. Naval Research Laboratory Materials Testing Facility demonstrated, Oct.31, the one-thousandth successful firing of its Electromagnetic Railgun, reaching a materials testing milestone in the weapon's technological development and future implementation aboard U.S. Navy warships.

"This test demonstrates continued advances in armature development, rail design, and barrel materials used in high power railgun launch," said Dr. Robert Meger, head, NRL Charged Particle Physics Branch. "Firing up to 15 shots per week on the laboratory's experimental railgun, researchers at NRL perform detailed testing and analysis of rails and armatures, providing S&T expertise to the Navy program that is directly applicable to tests at large-scale power levels."

Many of the 1000 shots taken on the Materials Testing Facility railgun have been designed to test different barrel designs and to quantify damage generated during high power launch. The innovations and understanding generated by NRLs' S&T program have been fed directly into the Office of Naval Research's Electromagnetic Railgun program and transferred to full-scale tests conducted at the Naval Surface Warfare Center, Dahlgren, Va.

A railgun is a form of single turn linear motor. Magnetic fields generated by high currents driven in parallel conductors, rails, accelerate a sliding conductor, known as an armature, between the rails. The velocity generated by the system is limited by rail strength and armature materials and their response to the high currents and extreme pressures generated during launch.

At launch, heat deposited in the armature and near the surface of the rails due to high currents and friction, or. viscous heating generated at the sliding interface, leads to temperatures sufficient to melt most metals including the armature material. If the heating and extreme pressures also damage the rail surface, it can destroy the contact surface and condemn the gun barrel. NRL S&T research has pioneered multiple barrel and armature designs that minimize or mitigate this damage even during successive high power launches.

First fired March 6, 2007 at a magnitude of 0.5 megajoules, the railgun system at NRL has been modified and enhanced over the last four years to operate routinely at a 1.5 megajoule launch energy a megajoule is a measurement of kinetic energy associated with a mass traveling at a certain velocity. In simple terms, a one-ton vehicle moving at 100 mph has approximately one megajoule of kinetic energy.

"A railgun weapons system must be able to launch hundreds of projectiles and withstand extreme pressures, currents and temperatures," said NRL Commanding Officer, Capt. Paul Stewart. "Today's firing of the one-thousandth shot demonstrates Navy researchers are steadily progressing toward achieving that goal, developing a more effective and efficient future ship combat system."

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The Railgun Materials Testing Facility railgun focuses on materials issues for a major Navy effort to develop a long-range, electromagnetic launcher for a future electric ship. The NRL Plasma Physics Division conducts a broad program in laboratory and space plasma physics and related disciplines, high power lasers, pulsed-power sources, intense particle beams, advanced radiation sources, materials processing, and nonlinear dynamics.


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Source: http://www.eurekalert.org/pub_releases/2011-11/nrl-ner110111.php

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