invisibility
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Video: simulated 'quiet zone' cloaking hides an object in 2-D
You don't have to be able to pick a Romulan out of a crowd of Vulcans to be intrigued by the idea of cloaking, and indeed many non-trekkers have tried to hide things in plain sight using electromagnetism, acoustic superlenses, or light-bending materials. The latest attempt relies on devices that emit cancelling waves of the sort anyone who's ever seen a Bose commercial should quite familiar with, combining to negate any external, incoming waves. What's different here is that they also recombine on the other side of the object being cloaked, as shown in the video below, meaning that incoming surge is then re-generated and continues on undisturbed -- potentially even reflecting back through the object again should it hit something on the far side. It's part of research at the University of Utah and, for now, only works in a theoretical two-dimensional world where triangles and squares are ruled by pentagons, hexagons, and priestly polygons. Optical camouflage is sadly not believed to be possible using this technique, but sonar and radar are likely implementations, as well as mechanisms to subvert earthquakes, tsunamis, and maybe even neighboring speed metal fans.
World of Warcraft Patch 3.2 Mage Guide
WoW.com has covered patch 3.2 extensively. Everything from the surprising changes to flying mounts, to the latest and greatest loot, and all the changes in between. In our patch 3.2 class, raiding, and PvP guides we take a look at exactly what changes and how the changes will affect your playing. So...a patch happened or something? I guess it's a big deal. People are excited or whatever. I'm way too cool to show any kind of positive emotion, so...meh. Meh, I say.Ok, I can't keep that up. Patches always make me happy. I've been known to break into song and engage in impromptu yet highly choreographed dance routines on patch days. This time around it was a little number called "Living Bomb is Castable on Multiple Targets Now...Yay!" The lyrics are actually quite clever. They go like this: "Living Bomb is castable on multiple targets now...yay!" repeated several times, and sung to the tune of whatever Wiggles song my kids happen to be listening to in the background at the time. Or sometimes to the Knight Rider theme. Don't ask me why. I'm a musical genius and I don't have to explain myself to you.Anyway, let's take a quick look at the ways this patch will be affecting Mages. Here's a five-word preview: Living Bomb Multiple Targets Yay
Breakfast Topic: The joy of phasing
Rayless on the General Forums asks a question that I've always wondered about but never poked into; how exactly does phasing work? If you've leveled through the Death Knight starting area, done the Wrath Gate questline, or quested in Icecrown (and you should really do all three), you've had the opportunity to see Blizzard's most intricate phasing in action. However, Zarhym and Crygil are pretty cryptic on how it's done, and it's up to players to fill in the details. In a nutshell, phasing is all about the information that's sent (or not sent) to your computer by the game server; Blizzard can toy with anything that's not client-side, affecting which buildings and NPCs you can "see" but not affecting the game's basic geography. I was surprised to discover that phasing has technically been in the game since launch -- ghosts and stealth are a form of phasing, as are (I would assume) the ghosts of Caer Darrow -- but the hugely elaborate set pieces of Wrath are simply a more complicated evolution of the same mechanic. Given the success of phasing, players have been kicking around suggestions for instances or zones that could do with a touch of it, and Gnomeregan seems to be a pretty consistent pick. I'd have to agree, but I'd also add the Echo Isles (the Gnomes and Trolls have overcome their low-level foes by now, surely?) and perhaps Duskwood for starters. Is there any other zone or instance that you think would benefit from a little reality-bending?
Electromagnetic invisibility a precursor to the real thing?
This could either be that one giant leap, or just another in a long sequence of multidirectional small steps on the Quixotic quest for undetectability. So-called dc metamaterials are the chief culprit for inciting our interest anew, as researchers from Universitat Autònoma de Barcelona have found a way to use them to render metallic objects invisible to low frequency electromagnetic waves. Composed of irregular networks of superconductors, the metamaterials are capable of granting superpowers altering the magnetic field of materials, and in theory, this advance could aid magnetic imaging in medical settings and also help cloak military vessels from magnetic detection. Of course, there's still the whole "oh, now we need a working prototype" conundrum, but hey, at least we've got the gears turning in the right direction.[Via PhysOrg]
Invisibility cloak modified to make you see things that aren't there
The ever-evolving tale of the invisibility cloak makes us want to hang our heads in our hands sometimes, so fraught with frustrations does it seem. Well, another chapter's been added to the tome: researchers at the Hong Kong University of Science and Technology have devised a way to extend the invisibility principle, allowing an illusion to sit in place of the invisible object. So, say you wanted to use an invisibility cloak to mask the presence of your bottle of beer on the table, the new concept -- or 'shroud of lies' as we call it -- would enable you to make it appear that there was a glass of water sitting there, in place of the beer. So how does that work, exactly? Normal, every day invisibility cloaks bend light around a central cavity, whereas the team has now worked out mathematical rules for bending light in other ways, allowing a material to be designed to bend light in the exact way a spoon would, so that the light hitting the material would distort, making it look like a spoon was there. Theoretically, all of this is rather simple and quite sound, though it turns out that there are numberless mechanical obstacles standing in the way of producing such devices. The new illusion-producing device would have to be capable of working without interfering with the invisibility cloak itself (which, if you recall, also can't properly be said to exist). There's no word on when any of this will ever come to fruition of course, but we remain always hopeful.
Arcane Brilliance: Patch 3.2 for Mages
Each week Arcane Brilliance sits down to write a column about Mages and all things Mageworthy. Big news this week in Mageville: Patch 3.2 is hitting the PTRs. And we all know what that means -- new Mage cat forms. Finally. Having had some time to ingest the 3.2 PTR patch notes, I feel I can now speak about them in a calm, rational manner. The PTR (and all of the additional changes that tend to take place therein) is only just beginning, and yet there are already so many nuggets of newness to devour that my news-stomach feels full to the bursting point. The Isle of Conquest... the death of 2v2 Arenas... Engineering becoming cooler... Emblems of Conquest dropping from heroics (?!)... the fact that Blizzard is now shutting all twinks away together in their own battlegrounds, exiled from the general populace, where they can only pwn each other all day long, until one day Kurt Russell is sent in to rescue the president after Air Force One crashes there... there's simply so much to take in that it's been a little bit difficult to process it all. And yes, once again, looking at those patch notes, I can't help but feel a bit underwhelmed at the 3 lines Mages got. Does every other class really need that much more fixing than us? Really? Still, what's there deserves some analysis. We're not getting much, fellow Mages, but what we are getting is fairly significant. So let's all stop staring at the 72 changes Death Knights and Paladins got for a few minutes and have a little talk about the notes for Mages, such as they are. One nice thing about the lack of changes we're getting: according to the brand new Mage Q&A, Blizzard thinks we're fine, which of course explains why we're not getting messed around with. More on that next week, after I've had a chance to make my peace with God and get my affairs in order. In fact, Blizzard has long suggested a direct corollary between the amount of changes a class is receiving and the general status of the class. Looking at the patch notes, I can't help but notice the following: Mage changes: 3... Warlock changes: 8. I'm looking at this as statistical proof that Warlocks are almost three times as screwed up as Mages. It's good to see Blizzard accept what I have always known: Mages are way better than Warlocks. Just like I've always said.
Acoustic superlens could mask ships from sonar... in theory, anyway
Man, the mad scientists are really on a roll of late. First we hear that Li-ion cells are set to magically double in capacity, and now we're learning that a new form of invisibility cloak is totally gearing up for its Target debut. As the seemingly endless quest to bend light in such a way as to create a sheath of invisibility continues, the University of Illinois at Urbana-Champaign's Nicholas Fang has reportedly developed a metamaterial that acts as a type of acoustic superlens. In theory, at least, this approach would rely on phreaking with sound rather than light in order to intensely focus ultrasound waves; by doing so, one could hypothetically "hide ships from sonar." To be fair, this all sounds entirely more believable than hiding massive vessels from human sight, but we're still not taking our skeptic hat off until we see (er, don't see?) a little proof.[Via Slashdot]
Purdue researchers concoct new invisibility cloak, plan Walmart debut
Hate to say it, but we're beyond the point of hope here. We just won't ever, ever see a real-deal invisibility cloak during our relatively brief stint on Earth. That said, researchers at Purdue University are doing their best to prove us wrong, recently developing a new approach to cloaking that is supposedly "simple to manufacture." Unlike traditional invisibility cloaks, which rely on exotic metamaterials that demand complex nanofabrication, this version utilizes a far simpler design based on a tapered optical waveguide. A report from the institution asserts that the team was able to "cloak an area 100 times larger than the wavelengths of light shined by a laser into the device," but for obvious reasons, it's impossible to actually show us it happened. Regardless, for the sake of the kiddos above, we're hoping this stuff gets commercialized, and soon.[Via Digg, Image courtesy of Thomas Ricker (yes, that Thomas Ricker)]
Quest for invisibility cloaks revisited by two research groups
After a brief period of no news, it's time to revisit the world of invisible cloaks. Inspired by the ideas of theoretical physicist John Pendry at Imperial College, London, two separate groups of researchers from Cornell University and UC Berkeley claim to have prototyped their own cloaking devices. Both work essentially the same way: the object is hidden by mirrors that look entirely flat thanks to tiny silicon nanopillars that steer reflected light in such a way to create the illusion. It gets a bit technical, sure, but hopefully from at least one of these projects we'll get a video presentation that's sure to make us downright giddy.
The OverAchiever: Glory of the Hero, Continued
No one's kiling any folk here today, on account of we got a really tight schedule. -- Mal, "Trash." Seemed to have some good luck with a previous Firefly quote, so why not? We're all set in Ahn'kahet, so let's pop over to Azjol-Nerub and lay waste to some bosses there.AZJOL-NERUBEvery achievement here is, in one way or another, a DPS race. If you've had difficulty with previous achievements in that vein or your DPS is still gearing up, you'll probably want to steer clear of Azjol for a while.Watch Him DieThis is one of the few achievements in the game most efficiently done from a kamikaze perspective (Sarth-10 3D is the most notable of the other picks). Early attempts at this with two tanks, two DPS, and one healer failed miserably, mostly due to the combination of poisons, a Priest healer, and Watcher Narjil's Blinding Webs ability. I'll admit I tried that before anything good dropped from Naxx, so it may just have been a gear issue at the time, but:a). If you have very good DPS, and:b). If you're willing to suffer a repair bill -- you can probably get this achievement in one or two tries without worrying about keeping all three Watchers tanked, bringing an off-tank, or risking a DPS having to kite all three to the entrance.
Cloaking device puts the kibosh on cellphone interference
There has been plenty of research into cloaking devices, but while scientists are still working their way towards the visible light spectrum they seem to be having the best luck with microwaves. Most recently, a new metamaterial made from over 10,000 individual pieces of fiberglass has been used to cloak a bump on a flat mirrored surface -- the material prevents microwaves from being scattered, giving the RADAR (we're guessing it's a RADAR) the impression that the surface is flat. This has many possible applications, such as cloaking sources of interference to cellular communications. Unfortunately, the implication we most desire -- rendering us invisible during high society jewel heists -- has yet to become reality.
Arcane Brilliance: Preparing your Mage for patch 3.0.2, part 1
Each week Arcane Brilliance patches itself with new Mage content. These weekly patches are always full of buffs, and never any nerfs. They never contain any changes made for the sake of class balance. There are no bug fixes; because Arcane Brilliance has no bugs (or at least no bugs that can't be retroactively called "features"). This week, the patch notes read as follows:Mage: New spell: Polymorph: Corpse - 1% of base mana, instant cast, 50 yard range, transforms the target into a corpse, making it dead. While dead, the corpse cannot attack or cast spells. Lasts however long it takes for the target's ghost to run back to their corpse. Mages can now equip plate armor. Mana no longer goes down when casting, it instead goes up. Next week, I'll complain about this patch. It's totally not powerful enough. Also, Warlocks are OP.All signs point to this coming Tuesday being the day patch 3.0.2 arrives and turns the game on its head. Up will be down, left will be right, dogs and cats will live together, mass hysteria will ensue. We need to prepare for this coming insanity, if only so that we're able to give snarky answers to the many questions that will pop up in trade chat after we all log back in. I expect lots of "LOL WUT HAPPEN TO MY TALENTS?" and the occasional "I used my mount and it disappeared! Bug?"This week will be the first of two columns in which we'll go over the changes most important to Mages that we can expect come Tuesday. We'll begin with general changes, and move on to the altered trainable spells. The second part will appear Monday, and will cover the three talent trees and review the many changes we'll find there. Jump on past the break and we'll get started.
Researchers create light bending material for invisibility cloak
We're only at the nano scale folks so you'll have to keep those high school fantasies of an invisibility-cloaked romp through the girls' locker room tucked away for now. Still, two teams of US government funded researchers under the direction of Xian Zhanga at UC Berkeley say that they've developed a material which can bend visible light around 3D objects, effectively making them disappear. While similar to the negative refractive properties of materials developed back in 2006, UCB's so-called meta-material is easier to work with and absorbs far less light than those earlier products. As such, the material could scale to the size of invisibility cloaks to hide objects such as tanks or mischievous boy-wizards. However, that day is a long ways off. In the short term, the meta-material will most likely find use in the far less interesting (to consumers, anyway) application of building better microscopes. Hey, Xian, picture of your invisible material or it didn't happen... oh, wait.[Via BBC News]
Scattered Shots: Do Hunters need Camouflage?
Hunt much? Got a pet? Scattered Shots is the feature you turn to when you've gotta have your weekly fix of hunter information, and you've just gotta have it every Thursday afternoon without fail. Those who mine the very depths of the Wrath of the Lich King alpha client have discovered a possible new hunter ability called Camouflage, which, if it goes live, could add an entirely new dimension to the hunter class. Its current form is kind of like a combination Vanish and Cloak of Shadows, in that, once every 5 minutes, it saves you from all debuffs currently destroying you in one way or another, and it puts you in "improved invisibility" (not actual stealth like a rogue has). There's no mention of any time limit, except that it will break when you deal damage.There are a number of implications this ability could have for hunters if it actually ends up on our action bars. For one, it would be quite different from a mage's Invisibility spell, which usually only allows them to see other invisible targets and only lasts for a short time. If Camouflage were to break upon dealing damage then we'd have to be able to see our targets, right? Likely we'd be able to move around and stalk them too. Also, it would not break when you start to cast a shot (such as Aimed Shot), or even if that shot were to miss -- only if it hits its mark. It could be the perfect companion to good damage openers on unsuspecting targets.If this goes live, Hunters are going to become snipers on top of everything else we are, which is super cool.
Phase 2 Dailies: Intercepting the Mana Cells
This Daily is located back in Shattrath, and given by a Draenei called Exarch Nasuun. He will be located in A'dal's chambers, in the northwestern Alcove where G'eras, the Badge of Justice vendor, used to be (G'eras himself is now on the walkway above the Alcove). He'll send you to the Bash'ir Landing, on the northern plateau of Blade's Edge Mountains. This means that this daily will require you to have a flying mount. Once you receive the the quest, you can fly to Evergrove in Ruann Weald via flightmaster, then fly northwest from there on your mount to reach Bash'ir landing. Once you're there, you'll want to kill any of the Ethereals until you receive the Bash'ir Phasing Device. The device is a very common drop, so you shouldn't have to kill more than one or two ethereals until you get one. This Device will put you, your pets, and your group members into a state not unlike the Mage spell Invisibility. You will not be able to see any non-phased players or mobs, nor will they be able to see you. This device, however, only works with Bash'ir landing, and any pets or groups members must stay within 100 yards of the person who used the device to get the benefit. As long as you stay within Bash'ir landing, the effect is permanent, although you can right-click it off. Once you're phased, you will need to start looking for your quest objective, the Smuggled Mana Cells, which will appear on the ground as translucent hot pink boxes. The boxes will appear mostly near the machinery and other stacked boxes around the camp. They will be guarded by Phase Wyrms, which should be relatively easy for a level 70 take out, and drop Motes of Mana for a nice little bonus. Once you have your 10 cells, you can drop the phased buff (Be careful for any ethereal aggro when you do. You can't see them while phased, but they'll be there when you come out of phased mode), mount up, and head back to Shattrath. Upon turning this quest in to Nasuun, you'll get 10 gold, 10 silver, a cache of Shattered Sun Supplies, and some credit toward the opening of a portal to Quel'danas on your server. All in all a very worthwhile quest, especially if your cache has a Badge of Justice. Once the portal is opened, this quest will be renamed "Maintaining the Sunwell Portal," but the objectives and rewards will remain the same. For more information, you can also read the pages for this quest on Wowwiki and Wowhead.
British Army looks to make tanks, troops invisible
While not the first bunch to try and mesh invisibility with military equipment, the British Army is reportedly staying busy by "testing technology it claims makes tanks and troops invisible." Apparently, the (previously) uber-secret trials were conducted by the Royal Engineers and scientists from QinetiQ, and if eyewitness reports are to be believed, they were able to "make a vehicle seem to completely disappear." The illusion (read: we're no closer to actual invisibility cloaks) was reportedly created by utilizing "cameras and projectors to beam images captured from the surrounding landscape onto a specially-adapted tank coated with silicon to maximize their reflective qualities," and if things go as planned, these elusive machines could make their way onto the battlefield "within five years." 'Course, it's not like anyone will have visual proof of that, but we suppose that's just the nature of the beast.[Via DailyMail]
Darpa funds invisible, shoot-through shield
In a move seemingly influenced in equal parts by Halo and David Lynch's film Dune, Darpa has announced that it's ponying up $15 million to develop one-way-invisible, self-healing, shoot-through shields for use in urban combat. While the Pentagon's research division acknowledges that there are "significant technical obstacles" in the process, it's fairly gung-ho about developing a technology combining metamaterials, 'coded' obscurant systems, and a bunch of other stuff no one really understands. Trust us, you'll thank them if the Harkonens try and overthrow your spice-mining operation.[Via Digg]
Researchers develop metamaterial with negative refractive index
We've got next-to-invisible objects and cameras with ridiculously large sensors, and thanks to a team of brilliant researchers over in Germany, now we've got "an exotic material with a negative refractive index for visible light." Gunnar Dolling and his colleagues at the University of Karlsruhe in Germany have created a metamaterial with layers of silver sandwiching a thin sliver of nonconducting magnesium fluoride on a glass sheet, and once an array of square holes were etched in, his tests showed that the "structure had a negative refractive index of -0.6 for light with a wavelength of 780-nanometers," besting the previous record of 1,400-nanometers. While the scientific babble may not mean much to you, the long and short of it is that this discovery could "lead to further breakthroughs in invisibility cloaks, which could hide objects from the human eye" and make escaping your troubles quite a bit easier. Moreover, the technology could be used in "superlenses" to see details "finer than the wavelength of visible light," but Dolling is reportedly more interested in studying the effects of his discovery than attempting to build any mystical devices, which is probably for the good of mankind, anyway.[Via Slashdot]
Duke scientists build theorized invisibility cloak. Sort of.
Yes, everyone wants an invisibility cloak. Yes, it's been theorized and in development before. But now, what our friends across the pond have only imagined, scientists at an American university have actually built. A group of brainiacs at Duke University have built a device (based on the Imperial College London theory) that can deflect microwave beams so the beams flow around an object almost as if nothing was there, with not too much distortion (but only in two dimensions). In order to do this, the group built a series of concentric circles made up of "metamaterials," or "artificial composites that can be made to interact with electromagnetic waves in ways that natural materials cannot reproduce." Don't get too excited yet, as scientists warn that this is merely a "baby step." The next step is to make the cloak work in three dimensions, and make improve the cloak's effectiveness. And even still, we're a long way off from making something completely disappear from visibility, which "would have to simultaneously interact with all of the wavelengths, or colors, that make up light." said David R. Smith, a member of the research squad. Hey Duke team, if you ever need human test subjects, we'd definitely be willing to volunteer.[Via The Associated Press]
