Meneguzzi writes "Having stuck with wired mice for years, I have recently been impressed by a couple of cordless mice I've used on other people's computers so much that I now want to buy one to use with my Mac Book Pro. However, while shopping around for the perfect cordless laptop mouse I was stuck with the question of whether to go for a bluetooth mouse or one of the many proprietary cordless mice with tiny USB receivers. To my surprise, there seems to be little literature systematically comparing these two options for attributes like precision, battery life (both for the mouse and the laptop), RF interference, and whatnot. As a Mac user, bluetooth has the advantage that it won't take up a USB port, and (in theory), would consume less battery than a USB port, but I wonder if this is actually true in practice. On top of that, I noticed that there are far fewer (and less fancy) options for Bluetooth mice than there are for proprietary cordless ones. Logitech, for instance, has a very basic Bluetooth Mouse, while its proprietary options are much fancier. So I was wondering what are the experiences from Slashdotters on this particular type of hardware, and any recommendations."

mighty7sd writes "I am about to be released from my contract with Time Warner for my home internet service, and I am evaluating alternatives to my current cable modem setup. I would love to use AT&T U-Verse or Verizon Fios, but they are not available in my area. I have a good idea of the costs and limitations of Cable and DSL service, so I am considering using mobile broadband for my home internet connection. Most providers seems to cap the connection at 5 GB of data transfer per month. I am a relatively heavy internet user using streaming video and a web server, so I need decent down/upload speeds and a large data transfer cap. Has anyone in the /. community had a good experience using mobile broadband cards at their home, specifically with lots of streaming video or a home server? What has happened if you have gone over your data transfer limit? Cricket Wireless is available in my area for $40 per month with 'unlimited' service, but I am skeptical that it is truly reliable and unlimited. I also found products that act as a WiFi router for mobile broadband services, but it seems that this is against most carriers TOS. Can they really detect these, and are they comparable to a wired broadband router?"

Hugh Pickens writes "Researchers have developed a camera that snaps images less than a half a billionth of a second long and can capture over six million images in a second continuously. Dubbed Serial Time-Encoded Amplified imaging, or Steam, the technique depends on carefully manipulating so-called 'supercontinuum' laser pulses. While other cameras used in scientific research can capture shorter-lived images, they can only capture about eight images, and have to be triggered to do so for a given event. The Steam camera, by contrast, can capture images continuously, making it ideal for random events that cannot be triggered. Keisuke Gode, lead author of the study, and his colleagues used their camera to image minute spheres flowing along a thin tube of water in a microfluidic device." (More below.)

g2 in the desert writes "I live in a small rural community in the US Southwest, where broadband service varies from decent but very expensive, to lousy but less expensive. Now that the Federal Communications Commission has approved the use of the soon to be vacated White-Space Spectrum, I'm interested in helping the community build its own local Internet service, providing villagers another choice. Does anyone know what companies will be manufacturing hardware that will be required to utilize this spectrum, and what steps need to be taken in order to be in compliance with any FCC rules and regulations?"

tcd004 writes "You can literally scrape valuable lithium off the ground of many Bolivian salt flats. The country is poised to be the center of world lithium battery production, reaping the benefit of the metal's skyrocketing value. 'The US Geological Survey says 5.4 million tons of lithium could potentially be extracted in Bolivia, compared with 3 million in Chile, 1.1 million in China and just 410,000 in the United States. ... Ailing automakers in the United States are pinning their hopes on lithium. General Motors next year plans to roll out its Volt, a car using a lithium-ion battery along with a gas engine. Nissan, Ford and BMW, among other carmakers, have similar projects.' However, the government fears foreign countries might exploit their natural resources, so for the time being, the salt flats remain untouched."

Al writes "Researchers at Carnegie Mellon University have created a touch screen that can also produce physical buttons. Graduate student Chris Harrison and professor Scott Hudson use a projector and infrared sensor below the screen to illuminate it and make it touch-sensitive, and the physical buttons are created using air pumps below the surface. They say this type of screen could be particularly useful when a simple, flat touch-screen is too distracting, for example in a vehicle dashboard."

The Narrative Fallacy writes "According to BusinessWeek, Verizon Wireless is in talks with Apple to distribute two new iPhone-like devices that are not iPhones. (Apple has created prototypes.) AT&T's contract with Apple, which has not been made public, is believed to cover all models of the iPhone, but only the iPhone. So if Apple builds something that isn't an iPhone — and perhaps doesn't even make cellular calls — they won't be violating their exclusivity contract with AT&T, which runs through at least 2010. One device is a smaller, less expensive calling device described by a person who has seen it as an 'iPhone lite.' The other is a media pad, said to be smaller than a Kindle but with a bigger screen, that would let users listen to music, view photos, watch high-definition videos, and make calls over a Wi-Fi connection. (And read books?) Apple could use the prospect of an iPhone-esque device as leverage to prevent Verizon Wireless from introducing the Palm Pre, or at least to delay its introduction on Verizon's network. 'The media pad category might go to Verizon,' said one person who has seen the device. 'We are talking about a device where people will say, "Damn, why didn't we do this?" Apple is probably going to define the damn category.'" Reader stevegee58 writes with word that Verizon may be playing both ends against the middle. Marketwatch reports that Microsoft and Verizon are in talks to develop a touch-screen mobile phone that would run on Windows Mobile.

Vigile writes "With the release of AMD's latest budget graphics card, the Radeon HD 4770, the GPU giant is bringing a lot of technology to the table. The card sports the world's first 40nm GPU (beating out CPUs to a new process technology for the first time), GDDR5 memory, and 640 stream processors, all for under $100. What is even more interesting is that as PC gaming has evolved it appears that a $99 graphics card is all you really need to play the latest PC titles — as long as you are comfortable with a resolution of 1920x1200 or below. Since so few PC gamers have screens larger than that, could the world of high-end PC graphics simply go away?"

Hugh Pickens writes "The Electronic Frontier Foundation has filed suit against Apple to defend the First Amendment rights of BluWiki, a noncommercial, public Internet 'wiki' site operated by OdioWorks. Last year, BluWiki users began a discussion about making some Apple iPods and iPhones interoperate with software other than Apple's iTunes. Apple lawyers demanded removal of the content (pdf) sending a letter to OdioWorks, alleging that the discussions constituted copyright infringement and a violation of the DMCA's prohibition on circumventing copy protection measures. Fearing legal action by Apple, OdioWorks took down the discussions from the BluWiki site but has now filed a lawsuit to vindicate its right to restore those discussions (pdf) and seeking a declaratory judgment that the discussions do not violate any of the DMCA's anti-circumvention provisions, and do not infringe any copyrights owned by Apple. 'I take the free speech rights of BluWiki users seriously,' said Sam Odio, owner of OdioWorks. 'Companies like Apple should not be able to censor online discussions by making baseless legal threats against services like BluWiki that host the discussions.'" Random BedHead Ed adds ZDNet quotes EFF's Fred von Lohmann, who says that this is an issue of censorship. 'Wikis and other community sites are home to many vibrant discussions among hobbyists and tinkerers. It's legal to engage in reverse engineering in order to create a competing product, it's legal to talk about reverse engineering, and it's legal for a public wiki to host those discussions.'"

Justin Schunick points out a video demonstration of a 3D input system which senses the user's hand position, but without requiring the user to touch a controller or wear a trackable position indicator. From the provided description: "Utilizing the theory of electrostatics, we have designed a low-cost human-computer interface device that has the ability to track the position of a user's hand in three dimensions. Physical contact is not required and the user does not need to hold a controller or attach markers to their body. To control the device, the user simply waves their hand above it in the air."

jangel sends us to WindowsForDevices.com for news on a prototype device created by researchers from Microsoft and UC San Diego. It's a USB-based NIC that includes its own ARM processor and flash storage, and can download files or torrent while a host PC is sleeping. As a result, its inventors say, the "Somniloquy" device slashes power usage by up to 50x. The device requires a few tweaks on the host OS side save state before sleeping. The prototype works with a Vista host but the hardware comprising the NIC is based on a Linux stack. Here is the research paper (PDF).

bheer writes "According to the NYTimes, at a conference next month, GE will debut their new holographic storage breakthrough — 500GB disks that will cost 10 cents a GB to produce at launch. GE will first focus on selling the technology to commercial markets like movie studios and hospitals, but selling to the broader corporate and consumer market is the larger goal."

Reader resistant sends in an update to our discussion a month back on the possibility of violent space weather destroying power grids worldwide during the upcoming solar cycle. Wired is running an interview with Lawrence Joseph, author of "Apocalypse 2012: A Scientific Investigation into Civilization's End," and John Kappenman, CEO of electromagnetic damage consulting company MetaTech. The piece brings two new threads to the discussion: the recently discovered presence of an unusually large hole in Earth's geomagnetic shield, magnifying our vulnerability, and possible steps we can take over the next few years to make the power grid more robust against solar flares and coronal mass ejections. There's also that whole Mayan 2012 thing. Quoting John Kapperman: "What we're proposing is to add some fairly small and inexpensive resistors in the transformers' ground connections. The addition of that little bit of resistance would significantly reduce the amount of the geomagnetically induced currents that flow into the grid. In its simplest form, it's something that might be made out of cast iron or stainless steel, about the size of a washing machine. ...we think it's do-able for $40,000 or less per resistor. That's less than what you pay for insurance for a transformer. [In the US] there are about 5,000 transformers to consider this for. ... We're talking about $150 million or so. It's pretty small in the grand scheme of things."

sciencehabit writes "'Researchers have developed a material that almost instantaneously (30 ms) changes from clear to dark blue when exposed to ultraviolet light, and it just as quickly reverts to clear when the light is turned off. The new material, one of a class called photochromics, could be useful in optical data storage as well as in super-fancy sunglasses.'" A comment to the article notes some of the potential dangers of quick-change sunglasses.

ericatcw writes "There was a flurry of excitement earlier this week when the first Google Android netbook, the Skytone Alpha 680, was spotted by Slashdotters. Now, Computerworld has scored an exclusive interview with Skytone's co-founder. Among many tidbits, he reveals that the Alpha 680 builds upon the success of last year's $180 Alpha 400, which shipped 100,000 units, mostly in Europe under names such as Elonex OneT; that the new Alpha 680 will weigh 1.5 pounds, 25% less than the first Eee 701 netbook; that its ARM11 chip (basically the same as the one used in the iPhone) can handle YouTube video; and that he hopes to have Chinese manufacturing partners producing the $250 Alpha 680 within 3 months."

AshboryBassPlayer writes "Ugobe has filed for Chapter 7 bankruptcy — i.e., not reorganization but liquidation. We first discussed the company's Pleo robotic dinosaur toy in 2006. According to the company, 100,000 Pleos were sold in 2008. CEO Caleb Chung is optimistic about the auction value of intellectual property that Ugobe holds. Pleo featured 14 servo joints, a camera, and an SD Card for storage. The final street prices were commonly between $275 and $350, much higher than an earlier hoped-for price point under $200."

CWmike writes "Advanced Micro Devices on Thursday introduced the latest member of its Phenom II X4 family of high-performance quad-core CPUs, which the No. 2 chip maker said it had run as fast as 7 GHz in extreme overclocking tests. Out of the box, the new X4 955 Black Edition, which is aimed at gamers and hobbyists, runs at 3.2 GHz, giving it similar performance to Intel's fastest desktop chips at lower cost, AMD says. The company was able to more than double the CPU's speed during its tests using extreme cooling technology that is not safe at home, said Brent Barry, an AMD product manager. The Web site Ripping.org notes that hobbyists with early access to the X4 955 chip have been able to clock it at up to 6.7 GHz. AMD said the chip was safe with fan cooling at up to 3.8 GHz."

IS4110 writes "A new racing car made with potatoes and carrots and powered with chocolate waste has been developed by the Innovative Manufacturing Research Centre of the University of Warwicks in the UK. The university's vehicle, called WorldFirst F3 project, has a steering wheel made of curran, a material derived from carrots, that is expected to replace glass fiber and carbon fiber. It also has a racing seat made of SoyFoam, a soybean oil-based, flexible foam material. Wing mirrors incorporate materials derived from potato starch, a bib made from flax fiber, and lubricants based on plant oils."

Corporate Troll writes "Robotic penguins were unveiled by German engineering firm Festo this week. Using their flippers, the mechanical penguins (video) can paddle through water just like real ones, while larger helium-filled designs can "swim" through the air. The penguins are on show at the Hannover Messe Trade Exhibition in Germany. Each penguin carries 3D sonar which is used to monitor its surroundings and avoid collisions with walls or other penguins."

Jessica Mischner writes "You've seen cars powered by the sun, wind and biofuels — but a vehicle propelled by dung? Yamaha just unveiled the first one at a golf course in Japan. The experimental golf cart doesn't run on cow dung directly — the poo is processed into biofuel which is then converted into methane — but it represents a huge leap forward for green innovations."