KentuckyFC writes "One of the many curious properties of Bose Einstein Condensates (BECs) is that the flow of sound through them is governed by the same equations that describe how light is bent by a gravitational field. Now, a group of Israeli physicists have exploited this idea to create an acoustic black hole in a BEC. The team created a supersonic flow of atoms within the BEC, a flow that prevents any phonon caught in it from making headway. The region where the flow changes from subsonic to supersonic is an event horizon, because any phonon unlucky enough to stray into the supersonic region can never escape. The real prize is not the acoustic black hole itself but what it makes possible: the first observation of Hawking radiation. Quantum mechanics predicts that pairs of phonons with opposite momentum ought to be constantly springing in and out of existence in a BEC. Were one of the pair to stray across the event horizon into the supersonic region, it could never escape. However, the other would be free to go on its way. This stream of phononic radiation away from an acoustic black hole would be the first observation of Hawking radiation. The team hasn't gotten that far yet, but it can't be long now before either they or their numerous competitors make this leap."

An anonymous reader writes "Acer is planning to announce a 3D notebook computer by end of October. If Acer indeed comes out with a 3D laptop then it'll be the world's first manufacturer to do so. The most interesting thing about Acer's machine is that it requires no special glasses. The 15.6-inch notebook features built-in software which can convert regular 2D movies to 3D and directly support 3D movies." Update: 06/08 23:18 GMT by T : According to the linked story, the no-glasses version is still in the works; the current iteration does still require special glasses.

Amanda Callahan writes to tell us that Apple's upcoming WWDC could be quite a test for the Cupertino powerhouse. They will most likely be missing Steve Jobs for star-power and have extremely high expectations to meet in order to maintain their edge. Thankfully it looks like Jobs will be rejoining Apple later this month with a good prognosis after facing severe health issues. "The competition is now catching up. Palm, Google, Microsoft, Nokia and Research in Motion, maker of the BlackBerry, are all at varying stages of developing and introducing their own iPhone-like devices and software, along with easily accessible stores for the small programs known as applications, or apps, that run on those devices. In some cases, those companies are releasing a greater variety of phones, on more wireless carriers around the world, than Apple. To maintain its advantage, Apple must preserve the impression that it is far ahead of rivals when it comes to the capabilities and the 'cool' factor of its devices."

Scientists have found ten new emperor penguin colonies by spotting their skid marks on the Antarctic ice from satellite images (video on page). The ice around the penguins gets very dirty because they congregate in a small area in very large colonies for months. Peter Fretwell, Mapping Expert, British Antarctic Survey says, "What we find is that we can see the guano (excrement) from space. They stay in the same space in very large colonies for eight months of the year and the ice around them gets very dirty, and it's that that we can see on the satellite images."

An anonymous reader writes "According to Jonathan Miller, News Corp's CDO, Hulu may soon begin charging subscription fees for some of their online content. News Corp is the parent company of Fox, which owns a huge portion of Hulu. When Miller of Newscorp was asked if Hulu would begin charging for online content during an Interview with Daily Finance, he said that 'the answer could be yes.' He went on to say that he doesn't 'see why over time that shouldn't happen.'"

Spanner Spencer writes "Talk to iPhone games developers, and the feature they're most excited about in the new iPhone 3.0 software is the ability to do in-game micro-transactions. And while you might wonder if this is just an excuse to get iPhone gamers to dip into their wallets even more often, it's actually a hugely positive thing for several reasons. Downloadable content, virtual items, subscription billing and fast-track social advancement are some of them, so Pocket Gamer looks into a bit more depth about what you can expect on the micro-payments side once iPhone 3.0 debuts."

Al writes "Researchers from Carnegie Mellon University have created a remarkably low-power server architecture using netbook processors and flash memory cards. The server design, dubbed a 'fast array of wimpy nodes,' or FAWN, is only designed to perform simple tasks, but the CMU team say it could be perfect for large Web companies that have to retrieve large amounts of data from RAM. A set-up including 21 individual nodes draws a maximum of just 85 watts under real-world conditions. The researchers say that a FAWN cluster could offer a low-power replacement for sites that currently rely on Memcached to access data from RAM."

SheeEttin writes "If you've been longing to play games from Steam on your Linux machine, you may not have to wait much longer — the Left 4 Dead demo includes some Linux libraries, in particular, one named 'steamclient_linux.so.' While the game's full release does not include these libraries, their apparently accidental inclusion in the demo suggests that Steam games will have native Linux clients in the near future. (A job listing at Valve looking for someone whose responsibilities would include 'Port[ing] Windows-based games to the Linux platform' would seem to support this.) The libraries also include several strings nonessential to a pure server, including references to forgotten passwords. Hopefully, this indicates that at least some Valve-affiliated games will have native Linux clients."

Paige Philuer writes "Macworld has a hands-on article examining the new MacBook and MacBook Pro — not a quickie look from Tuesday's event, but a lengthy, in-depth look with laptops they actually have in their offices. Some interesting observations: No FireWire on the MacBook; the TrackPad doesn't feel like you're running your finger across a pane of glass, though that's what it is; and switching between graphics cards in the MacBook Pro requires you to log out." Reader Bourbon contributes three links at CNET related to the new models, too: a positive written review (giving a score of 8/10 to the new MacBook), a video review, and a behind-the-scenes look at how the new models are machined.