Archive for the 'Technology' Category

Does Your House Need a Tail?

Wednesday, November 26th, 2008

Does Your House Need a Tail?: Via Freedom to Tinker

Thus far, the debate over broadband deployment has generally been between those who believe that private telecom incumbents should be in charge of planning, financing and building next-generation broadband infrastructure, and those who advocate a larger role for government in the deployment of broadband infrastructure. These proposals include municipal-owned networks and a variety of subsidies and mandates at the federal level for incumbents to deploy faster broadband.

Tim Wu and Derek Slater have a great new paper out that approaches the problem from a different perspective: that broadband deployments could be planned and financed not by government or private industry, but by consumers themselves. That might sound like a crazy idea at first blush, but Wu and Slater do a great job of explaining how it might work. The key idea is “condominium fiber,” an arrangement in which a number of neighboring households pool their resources to install fiber to all the homes in their neighborhoods. Once constructed, each home would own its own fiber strand, while the shared costs of maintaining the “trunk” cable from the individual homes to a central switching location would be managed in the same way that condominium and homeowners' associations currently manage the shared areas of condos and gated communities. Indeed, in many cases the developer of a new condominium tower or planned community could lay fiber along with water and power lines, and the fiber would be just one of the shared resources that would be managed collectively by the homeowners.

If that sounds strange, it's important to remember that there are plenty of examples where things that were formerly rented became owned. For example, fifty years ago in the United States no one owned a telephone. The phone was owned by Ma Bell and if yours broke they'd come and install a new one. But that changed, and now people own their phones and the wiring inside their homes, with your phone company owning the cable outside the home. One way to think about Slater and Wu's “homes with tails” concept is that it's just shifting that line of demarcation again. Under their proposal, you'd own the wiring inside your home and the line from you to your broadband provider.

Why would someone want to do such a thing? The biggest advantage, from my perspective, is that it could solve the thorny problem of limited competition in the “last mile” of broadband deployment. Right now, most customers have two options for high-speed Internet access. Getting more options using the traditional, centralized investment model is going to be extremely difficult because it costs a lot to deploy new infrastructure all the way to customers' homes. But if customers “brought their own” fiber, then the barrier to entry would be much lower. New providers would simply need to bring a single strand of fiber to a neighborhood's centralized point of presence in order to offer service to all customers in that neighborhood. So it would be much easier to imagine a world in which customers had numerous options to choose from.

The challenge is solving the chicken-and-egg problem: customer owned fiber won't be attractive until there are several providers to choose from, but it doesn't make sense for new firms to enter this market until there are a significant number of neighborhoods with customer-owned fiber. Wu and Slater suggest several ways this chicken-and-egg problem might be overcome, but I think it will remain a formidable challenge. My guess is that at least at the outset, the customer-owned model will work best in new residential construction projects, where the costs of deploying fiber will be very low (because they'll already be digging trenches for power and water).

But the beauty of their model is that unlike a lot of other plans to encourage broadband deployment, this isn't an all-or-nothing choice. We don't have to convince an entire nation, state, or even city to sign onto a concept like this. All you need is a neighborhood with a few dozen early-adopting consumers and an ISP willing to serve them. Virtually every cutting-edge technology is taken up by a small number of early adopters (who pay high prices for the privilege of being the first with a new technology) before it spreads to the general public, and the same model is likely to apply to customer-owned fiber. If the concept is viable, someone will figure out how to make it work, and their example will be duplicated elsewhere. So I don't know if customer-owned fiber is the wave of the future, but I do hope that people start experimenting with it.

You can check out their paper here. You can also check out an article I wrote for Ars Technica this summer that is based on conversations with Slater, Wu, and other pioneers in this area.

Read Original Article (Via Freedom to Tinker.)

Hack Turns iPhone Camera Into HD Camcorder

Wednesday, December 26th, 2007

Hack Turns iPhone Camera Into HD Camcorder - Via Slashdot:

An anonymous reader writes “Monsters and Friends has just released the beta of Drunknbass, a new iPhone hack that allows the unit’s camera to capture video. ‘While the iPhone’s 2.0 megapixel camera resolution may be mediocre for a still camera, it is excellent resolution for a consumer video camera.’ A standard definition Canon digital camcorder uses a 680K pixel sensor chip (because a standard definition TV’s resolution is only 520 x 360), while one of Canon’s HD camcorders uses a 2.9 megapixel sensor. The beta presently allows 5 second clips at 10 frames per second, but the finished version will soon allow infinite recording at 45 frames per second. Video of Drunknbass in action can be found on YouTube.”

(Read Original Article - Via Slashdot.)

Hack Turns iPhone Camera Into HD Camcorder

Sunday, December 23rd, 2007

Hack Turns iPhone Camera Into HD Camcorder - Via Slashdot:

An anonymous reader writes “Monsters and Friends has just released the beta of Drunknbass, a new iPhone hack that allows the unit’s camera to capture video. ‘While the iPhone’s 2.0 megapixel camera resolution may be mediocre for a still camera, it is excellent resolution for a consumer video camera.’ A standard definition Canon digital camcorder uses a 680K pixel sensor chip (because a standard definition TV’s resolution is only 520 x 360), while one of Canon’s HD camcorders uses a 2.9 megapixel sensor. The beta presently allows 5 second clips at 10 frames per second, but the finished version will soon allow infinite recording at 45 frames per second. Video of Drunknbass in action can be found on YouTube.”

(Read Original Article - Via Slashdot.)

NASA Ares I Moon Rocket - Open-Source Contract With Boeing

Thursday, December 20th, 2007

NASA Ares I Moon Rocket - Open-Source Contract With Boeing - Via Popular Mechanics :

The “brains” of the Ares I rocket that will send four astronauts back to the moon sometime in the next 12 years will be built by Boeing, NASA announced today—but the specifications will be open-source and non-proprietary, so that other companies can bid on future contracts. The avionics unit will provide guidance, navigation and control for the launch rocket, which will carry the Orion crew vehicle into Earth orbit.

“The combined Ares I and Orion will replace the Space Shuttle and become the workhorse that takes astronauts into space for journeys to the Space Station, the Moon and Mars,” said Doug Cooke, a official with NASA’s Exploration Systems division. The Shuttle is currently slated for retirement in 2010.

The $800 million avionics deal is the last one in a series of four Ares I contracts issued in the past five months, totaling $5 billion. Pratt & Whitney is building the engine for $1.2 billion, Alliant Techsystems is building the first-stage solid rocket booster for $1.8 billion, and Boeing had earlier won the $1.125 billion upper-stage contract.

NASA’s Constellation program, which aims to return humans to the moon by 2020, will use the Ares I rocket to launch Orion into orbit. A larger Ares V rocket, which will be developed based on the Ares I design beginning early in the next decade, will rendezvous with Orion in orbit and provide the extra units needed to escape Earth’s orbit. But that doesn’t mean that Boeing can count on billions of dollars of contracts for the Ares V, noted Ares project manager Steve Cook. The specifications for the Ares I design are “open-source and non-proprietary,” he said, ensuring that future contracts will have full competition.

Preliminary work on Ares I has already involved 3500 hours of wind-tunnel testing, and last month the team field-tested an enormous parachute that will allow the rocket’s first-stage boosters to be recovered and reused. A 42,000-pound dead weight was dropped from a U.S. Air Force C-17 from 16,500 feet above the Yuma Proving Ground in Arizona, and it safely floated to the ground under a 2000-pound, 150-ft.-diameter parachute—the biggest chute of its type ever to be tested.

With all the contracts in place, the Ares team is now headed for a preliminary design review next year. The team hopes to fire up its first development motor in April 2009, Cook said, and continue meeting the benchmarks leading to a 2020 moon voyage.

“I don’t think there’s any magic here,” Beoing vice-president Brewster Shaw said. “We all have a lot of hard work ahead of us over the coming years.”

(Read Original Article - Via Popular Mechanics.)

Hack Turns iPhone Camera Into HD Camcorder

Tuesday, December 18th, 2007

Hack Turns iPhone Camera Into HD Camcorder - Via Slashdot:

An anonymous reader writes “Monsters and Friends has just released the beta of Drunknbass, a new iPhone hack that allows the unit’s camera to capture video. ‘While the iPhone’s 2.0 megapixel camera resolution may be mediocre for a still camera, it is excellent resolution for a consumer video camera.’ A standard definition Canon digital camcorder uses a 680K pixel sensor chip (because a standard definition TV’s resolution is only 520 x 360), while one of Canon’s HD camcorders uses a 2.9 megapixel sensor. The beta presently allows 5 second clips at 10 frames per second, but the finished version will soon allow infinite recording at 45 frames per second. Video of Drunknbass in action can be found on YouTube.”

(Read Original Article - Via Slashdot.)

Hack Turns iPhone Camera Into HD Camcorder

Friday, December 14th, 2007

Hack Turns iPhone Camera Into HD Camcorder - Via Slashdot:

An anonymous reader writes “Monsters and Friends has just released the beta of Drunknbass, a new iPhone hack that allows the unit’s camera to capture video. ‘While the iPhone’s 2.0 megapixel camera resolution may be mediocre for a still camera, it is excellent resolution for a consumer video camera.’ A standard definition Canon digital camcorder uses a 680K pixel sensor chip (because a standard definition TV’s resolution is only 520 x 360), while one of Canon’s HD camcorders uses a 2.9 megapixel sensor. The beta presently allows 5 second clips at 10 frames per second, but the finished version will soon allow infinite recording at 45 frames per second. Video of Drunknbass in action can be found on YouTube.”

(Read Original Article - Via Slashdot.)

Solar Home Competition Puts a New Spin on Energy-Efficient Style

Wednesday, October 24th, 2007

Solar Home Competition Puts a New Spin on Energy-Efficient Style: “Twenty college and university teams from around the world recently competed in the Solar Decathlon on the National Mall in Washington D.C. with one mission: To design and build a modern, energy-efficient, solar-powered house.”

(Read Original Article - Via NewsHour with Jim Lehrer Podcast | PBS.)

Decades of NASA photos, video coming to the Web

Saturday, August 25th, 2007

Decades of NASA photos, video coming to the Web: “

With the space shuttle Endeavour safely back on the ground, NASA is working on showing the world its photo album.

The space agency and the Internet Archive said Tuesday that they plan to scan and archive more than 12 million NASA photographs and 100,000 hours of film and video footage for free access online, under an five-year agreement. As part of the deal, the Internet Archive will host the media album on a new Web site, Nasaimages.org.

The two organizations didn’t say when the site will officially launch, but the project will presumably be well underway and public before NASA’s 50th anniversary next year. (The anniversary of space flight is next month.) They did say that the archive will feature more than 50 years of NASA history, including audio files, computer animations and images on experimental rocketry dating from as early as 1915. Archiving all of that might take a while.

The project is novel because it will finally give people a central outlet for viewing stellar photos and videos from NASA. That the space agency chose the Internet Archive as its partner is also remarkable, given that NASA has been working with Google in various capacities for more than a year. NASA has teamed with the search giant to develop Google Mars, for example.

After all, the Internet Archive, a site that offers access to digitized books and other media, has roughly the same mission as Google: making “all human knowledge” available digitally.

NASA representative David Steitz said that the project was no small endeavor, one best suited to the Internet Archive.

(Read Original Article - Via News.blog: Media (CNET News.com).)

reCAPTCHA: Stop Spam, Read Books

Friday, July 27th, 2007

reCAPTCHA: Stop Spam, Read Books: A CAPTCHA is a program that can tell whether its user is a human or a computer. You’ve probably seen them — colorful images with distorted text at the bottom of Web registration forms. CAPTCHAs are used by many websites to prevent abuse from “bots,” or automated programs usually written to generate spam. No computer program can read distorted text as well as humans can, so bots cannot navigate sites protected by CAPTCHAs.

About 60 million CAPTCHAs are solved by humans around the world every day. In each case, roughly ten seconds of human time are being spent. Individually, that’s not a lot of time, but in aggregate these little puzzles consume more than 150,000 hours of work each day. What if we could make positive use of this human effort? reCAPTCHA does exactly that by channeling the effort spent solving CAPTCHAs online into “reading” books.

To archive human knowledge and to make information more accessible to the world, multiple projects are currently digitizing physical books that were written before the computer age. The book pages are being photographically scanned, and then, to make them searchable, transformed into text using “Optical Character Recognition” (OCR). The transformation into text is useful because scanning a book produces images, which are difficult to store on small devices, expensive to download, and cannot be searched. The problem is that OCR is not perfect.

reCAPTCHA improves the process of digitizing books by sending words that cannot be read by computers to the Web in the form of CAPTCHAs for humans to decipher. More specifically, each word that cannot be read correctly by OCR is placed on an image and used as a CAPTCHA. This is possible because most OCR programs alert you when a word cannot be read correctly.

But if a computer can’t read such a CAPTCHA, how does the system know the correct answer to the puzzle? Here’s how: Each new word that cannot be read correctly by OCR is given to a user in conjunction with another word for which the answer is already known. The user is then asked to read both words. If they solve the one for which the answer is known, the system assumes their answer is correct for the new one. The system then gives the new image to a number of other people to determine, with higher confidence, whether the original answer was correct.

Currently, we are helping to digitize books from the Internet Archive.

(Read Original Article - Via .)

iPhone Researchers Gain a Shell

Saturday, July 7th, 2007

iPhone Researchers Gain a Shell: “SkiifGeek writes ‘A team of researchers dedicated to finding means to fully control and interact with the new Apple iPhone claim to have successfully gained an interactive shell on the device. In order to achieve this feat physical access to the phone is required, as it relies on some minor electronics to be created and connected to the phone’s serial port. It is believed that general control over the iPhone will be available to the enterprising researchers within a week (after all, it has only just been a week since the iPhone was released), with the promise of enough control to allow for self-propagating code not very far away.’

(Read Original Article - Via Slashdot.)