Cutting Edge

Twelve days after it launched WorldView-2 into orbit, DigitalGlobe has released its first images from the satellite, which will supply high-resolution photography for Google's and Microsoft's online mapping services.

The first images are of two locations in San Antonio, Texas, where the company is showing off its work at the GeoInt 2009 Symposium this week, and of Dallas Love Airport.

The quality of the images should improve over these first shots, taken Monday. "More refinements to early-stage images can be expected as the ongoing check-out and calibration continues," DigitaGlobe said.

Microsoft and Nokia sponsored the WorldView-2 launch, … Read more

It may look like something your kids brought home from shop class, but this rugged, French-designed micro air vehicle (MAV) could be a missing link between smooth, steady hover and fast, forward flight.

The inventor, Dr. Jean-Marc Moschetta, professor of aerodynamics at the Institut Superieur de l'Aeronautique et de l'espace in Toulouse, France, created what he calls the MAVion with both commercial and military markets in mind.

A mere 30 centimeters long, the MAVion combines fixed wings with two counter rotating propellers, allowing it to operate with high aerodynamic efficiency--even in adverse conditions, according to the professor.

"… Read more

Researchers in California are developing a simple robot cockroach that can be assembled in an hour, move quickly, and survive 92-foot falls.

The Dynamic Autonomous Sprawled Hexapod, or DASH, is a neat example of the insectile robotics from UC Berkeley's Biomimetic Millisystems Lab.

Robot cockroaches have been designed before, but DASH seems relatively simple to put together before it can be used to creep everyone out.

The 4-inch, 16-gram bug is put together by folding cardboard and polymer sheets. A DC motor runs the six legs while a servomotor bends the frame to induce left or right turns.

It … Read more

So you're a programmer deciding where to invest your energy. What's a better idea: the latest Apple device, where hot new games can mean big bucks and millions of users, or a calculator introduced 10 years ago?

Most go for iPhones and iPods. But another community thrives in its own way. These are the folks who spend hours trying to elevate their Texas Instruments calculators to a level far surpassing their modest roots.

Among their achievements: adding new features, creating new operating systems, connecting the calculator to keyboards and other hardware, playing a video excerpt from "The Matrix," and even running Nintendo Game Boy video games. Not bad for calculators such as the $100 TI-83 Plus, introduced in 1999 with a Z80 processor running at 6MHz, 24KB of memory, 160KB of flash memory, and a 96x64 pixel display.

Why all this work for projects that realistically are not going to reshape the future of computing? Much of the motivation parallels mountaineer George Mallory's rationale for climbing Mount Everest: "Because it's there."

TI's graphing calculators are programmable, affordable, and widely used in schools--a lot more approachable than a Himalayan peak. That doesn't mean they're easy. The calculators must be programmed in assembly language--a slightly more human-readable version of the very basic machine code the calculators execute, but hardly something more easily read and debugged such as C or Java. … Read more

We're getting a first glimpse of that shape-shifting ChemBot we first told you about last year, and well, it looks like the love child of a beating heart and a wad of Silly Putty.

The Defense Advanced Research Projects Agency and the U.S. Army Research Office awarded a multimillion-dollar contract to iRobot to create the flexible military bot. The maker of the Roomba and Scooba, along with University of Chicago researchers, showed off the oozy results at the Iros conference (the IEEE/RSJ International Conference on Intelligent Robots and Systems) in St. Louis this week.

DARPA envisions the … Read more

Boeing continues to carve notches in its directed-energy bandolier.

The defense contractor said Tuesday that its Advanced Tactical Laser aircraft in mid-September fired from the air and hit a vehicle moving on the ground. That bull's-eye marks the first time the modified C-130H has used its onboard chemical laser to strike a moving target. Boeing didn't offer specifics on the type of vehicle, other than to say it was remote-controlled, or how fast it was moving, nor did it give the airspeed or altitude for the aircraft.

The actual damage was minimal: the laser beam put a hole … Read more

Can a $1 billion help save the environment? George Soros hopes so.

The billionaire financier and philanthropist plans to invest part of his wealth on clean tech to fight global warming. In a speech at the Project Syndicate editors' forum in Copenhagen, Denmark, on Saturday, Soros gave the keynote address announcing his new plans.

Soros said he will invest $1 billion in clean-energy technologies and will provide $100 million--$10 million each year for the next 10 years--for the new Climate Policy Initiative, a watchdog-type foundation to promote measures to combat climate change.

"Global warming is a political problem,&… Read more

Twitter may not be making money but at least it's providing a forum for some innovative artistic collaboration.

Take, for instance, science fiction writer and graphic novelist Neil Gaiman. He's going to create an audio book based on tweets provided by Twitter users.

You might remember the game of "Exquisite Corpse" where a group of people create a poem or story together by writing down sentences in succession that no one else can see until everyone has contributed. Read as a whole, the mish-mash can be entertaining, at least to slightly inebriated English literature students bored … Read more

At first glance, James Dyson's latest invention looks like a powerful HD antenna or perhaps a small portal into another world. But in fact, the device, which carries the vaunting title of Dyson Air Multiplier, is something much more common: a fan.

What, a fan with no blades? Yes, that's exactly what you're looking at, and what makes the Air Multiplier so hard for people to classify at first. This fan uses some innovative airflow engineering to pull air up through an energy-efficient brushless motorbase and multiply it 15 times, expelling it through an airfoil-shaped ramp at a rate of 118 gallons a second, according to the press release.

Dyson, the company, says its fluid dynamics engineers spent four years "running hundreds of simulations to precisely measure and optimize the machine's aperture and airfoil-shaped ramp" and air fluctuations were mapped with something called a Laser Doppler Annometry. … Read more