edumacator writes "Our school is working hard to provide our students with relevant opportunities of study. We have a short 'seminar' period that meets three days a week for thirty minutes. I've chosen to teach a seminar on 'Home Grown Technology' even though I'm an English teacher and only an amateur techie. If you had thirty minutes, three days a week, for nine weeks, what would you teach a group of high school students? I'm considering the Wii-mote smartboard and multitouch displays, but I'm afraid I'm overreaching."

An anonymous reader writes "In a foot-meet-bullet type move, NVidia is going to disable PhysX engine if you are using a display adapter other than one that came from their company. This despite the fact that you may have an NVidia card on your system specifically to do this type of processing. 'For a variety of reasons some development expense, some quality assurance and some business reasons Nvidia will not support GPU accelerated PhysX with Nvidia GPUs while GPU rendering is happening on non-Nvidia GPUs.' Time to say hello to Microsoft dx physics or Intel's Havok engine."

Dan Jones writes "It has been estimated that Amazon Web Services is provisioning some 50,000 EC2 server instances per day, or more than 18 million per year. But that may not be entirely accurate. A single Amazon Machine Image (the virtual machine) may be launched multiple times as an EC2 instance, thereby indicating that the true number of individual Amazon servers may be lower, perhaps much lower, than 50,000 per day. So, even if it's out by a factor of 10 that's still 1.8 million VMs per year. Is that sustainable? By way of comparison, In February of this year, Amazon announced S3 contained 40 billion objects. By August, the number was 64 billion objects. This indicates a growth of 4 billion S3 objects per month, giving a daily growth total of about 133 million new S3 objects per day. How big can the cloud get before it starts to rain?"

alphadogg writes "Mobile users face a fast-growing gap between their smartphones' increasing power needs and battery capacity. That gap could force users to make tradeoffs in how, and for what, they use their phones, even as vendors at all levels work even harder to reduce power demand in mobile devices, according to Chris Schreck, a research analyst with IMS Research. Schreck estimates that a 1500 mAh battery, the industry's current 'high water mark,' yields for many smartphone users a battery life of about 6 hours — highly dependent on what applications and on-device technologies, including Wi-Fi, users are running. The latest and greatest tech advances, including faster CPUs, higher data throughput, and improved displays all crank up the demand for power. The combination of user behavior and technology is boosting power demand faster than battery capacity can keep up. Schreck estimates power requirements can grow 15% a year."

An anonymous reader writes 'Sean Lind over at PokerListings has written a really interesting piece on how to configure Rock Band (or Guitar Hero) instruments to use them as controllers for playing online poker. The instructions given in his how-to could really be used to configure the instruments for any game.' Or how about a genuine chording keyboard?

An anonymous reader writes "I am an artist working with 3d software to create animations and digital prints. For now my work just gets put on screening DVDs and BluRays and the original .mov and 3d files get backed up. But museums and big art collectors do want to purchase these animations. However as we all know archival DVDs are not really archival. So I want to ask the Slashdot readers, what can I give to the museum when they acquire my digital work for their collection so that it can last and be seen long after I am dead? No other artist or institution I know of have come up with any real solution to this issue yet, so I thought Slashdot readers may have an idea. These editions can be sold for a large amount of money, so it doesn't have to be a cheap solution."

ptorrone writes "Hardware hacker extraordinaires Ladyada (Adafruit Industries) and Phil Torrone (of MAKE magazine) have just published an open source 'Homeland Security' project, a non-lethal LED-Based Incapacitator: THE BEDAZZLER. After attending a conference where the $1 million 'sea-sick flashlight' (THE DAZZLER) was demoed by Homeland Security, the duo decided to created an under-$250 version, and just released the source code, schematics and PCB files. The team also released a 5 minute video describing the 'official version' as well as how they created the 'open source hardware' version."

dreemteem writes with this excerpt from ComputerWorld UK:"SharePoint is a brilliant success, for a couple of reasons. In a way, it's Microsoft's answer to GNU/Linux: cheap and simple enough for departments to install without needing to ask permission, it has proliferated almost unnoticed through enterprises to such an extent that last year SharePoint Sales were $1.3 billion. But as well as being one of Microsoft's few new billion-dollar hits, it has one other key characteristic, hinted at in the Wikipedia entry above: it offers an effortless way for people to put content into the system, but makes it very hard to get it out because of its proprietary lock-in. This makes it a very real threat to open source. For example, all of the gains made in the field of open document standards — notably with ODF — are nullified if a company's content is trapped inside SharePoint." The article offers a slice of hope for getting around that, though, in the form of a new API for Google Sites which can slurp the data back out.

chill writes "Nature is reporting that 'South Korean manufacturer Samsung Electronics announced this week that it has begun mass production of a new kind of memory chip that stores information by melting and freezing tiny crystals. Known as phase-change memory (PCM), the idea was first proposed by physicists in the 1960s.' With transistor-equivalent cells only 20 nm wide, switching time is around 16 ns. The first target market is cell phones, but the companies behind the technology see applications in PCs, servers, and other devices as well."

An anonymous reader writes "Generating entangled photons in a reliable way is impossible right now, stalling the development of the optical quantum computers that would use entangled photons as quantum bits (qubits). Because entangled photons can only be produced at random — which takes time — the most powerful optical quantum computing device use only 6 qubits. UK and Israeli quantum physicists have designed a blueprint for a 'quantum machine gun' that fires out barrages of entangled photons on demand. They think within a few years this device will be built, and could lead to quantum computing using 20 to 30 qubits. Every additional qubit doubles the computing power, so these quantum computers could outperform any existing classical computer, the researchers say. The quantum machine gun is described as 'one of the most exciting theoretical proposals I've read in five years' by a leading quantum physicist." The research was published in Physical Review Letters earlier this month.

An anonymous reader writes "HERF guns have previously been regarded as nothing more than an interesting project with uses ranging from at-home experiments to malicious pranks. But the deployment of 'morally gray' forms of high-tech crowd control, such as the recent use of a sound cannon against domestic protesters, along with the likely future unleashing of the pain gun on more than just 'foreign terrorists,' creates a new purpose for these relatively easily assembled devices. Could HERF guns become a new method to counter the silencing of protesters via these sophisticated attacks, or is there any other way to prevent such efficient, convenient crowd dispersal?"

Several readers sent in word that Google has served a Cease and Desist order to Cyanogen, one of the most prolific Android modders: his CyanogenMod is enjoyed by 30,000 users. The move is puzzling. Gizmodo wonders what Google's game is, and Lauren Weinstein calls the move "not of the high 'Googley' caliber" that one would expect of the company.

suraj.sun excerpts from a tantalizing Engadget post: "Phoenix is showing off a few interesting things at IDF, but the real standout is their new Instant Boot BIOS [video here], a highly optimized UEFI implementation that can start loading an OS in just under a second. Combined with Windows 7's optimized startup procedure, that means you're looking at incredibly short boot times — we saw a retrofitted Dell Adamo hit the Windows desktop in 20 seconds, while a Lenovo T400s with a fast SSD got there in under 10."

H4x0r Jim Duggan writes "Veteran violation chasers Shane Coughlan and Armijn Hemel have summarized how license violations are caused in the consumer electronics market under time-to-market pressure and thin profit margins: 'This problem is compounded when one board with a problem appears in devices supplied to a number of western companies. A host of violation reports spanning a dozen European and American businesses may eventually point towards a single mistake during development at an Asian supplier.' They also discuss the helpful organizations which have sprung up and the documents and procedures now available."

An anonymous reader writes "We recently developed a multi-user application and deployed it to our users. This is a web-based application that used to be a Windows application which was written in Delphi using Paradox databases for the client database. In the Windows application, we used the ability in Paradox to lock records which would prevent users from editing the same data. However, in the web application we did not add in a locking facility for the data due to its disconnected nature (at least that's how I was shot down). Now our users are asking to have the locking back, as they are stepping on each others' edits from time to time. I have been assigned to look at best practices for web application locking of data, and figured I would post the question here to see what others have done or to get some pointers to locations for best practices on doing locking with in a web application. I have an idea of how to do this, but don't want to taint the responses so I'll leave it off for the time being."

itwbennett writes "Exploding iPhones may be a thing of the past. Researchers at Taiwan's Industrial Technology Research Institute have developed a new polymer, STOBA (that's self-terminated oligomers with hyper-branched architecture to you and me), that is added to the cathode material inside a lithium-ion battery to keep them from overheating. 'Fires or explosions in these batteries are caused by short circuits,' said Wu Hung-chun, a researcher at ITRI, explaining that even minor mishandling such as dropping the handset could result in damage causing a short circuit. 'The technology is ready for lithium-ion batteries used in electronic devices, mobile phones, laptops,' said Wu. And ITRI has started testing STOBA on electric car batteries."

dreemteem writes "After 8 years of success, the USB 2.0 standard has begun its long journey into obsolescence. Dutch storage company Freecom has announced the first mainstream storage product based on 'SuperSpeed' USB 3.0. Buyers will be interested to hear that the new external Hard Drive XS 3.0 doesn't cost the earth at £99 (approx $160) for a 1TB drive, even though that excludes the £22.99 for a desktop PCI-bus controller necessary to make it work at its intended throughput. Laptop users can pair it with a £25.99 plug-in PC Card to achieve the same effect."

griffjon writes "The new hardware release (you can read about the upgrade here) also comes with a dual-boot option. Start rejoicing now; it's not XP or Sugar (the native, education-centric OS) — it's Sugar or Gnome. And of course there are other homebrew distributions like Xtra Ordinary, built off of Debian."

Barence writes "Intel has stunned visitors at IDF by showing off the world's first four-screen laptop. The oddly-named 'Tangent Bay' has three miniature touchscreens set horizontally into the case below the main, full-sized panel. It is a fully functional prototype: delegates were able to scroll photos around the touchscreens by swiping with a finger. The idea smacked a little too much of the ill-fated Vista SideShow." Seems strange that they would put the screens above the keyboard. I think embedding an iPhone type touchscreen in place of the trackpad would be a far more useful thing.

SoundDoc75 links to a page describing the motivations and problem-solving behind "a 10-minute HD video taken on August 24th with a Canon Vixia HF20 HD camera suspended from a 1500g hydrogen balloon and launched near Edmonton, Alberta. This is the first known amateur video taken from this height — 107,145 feet."