Hasta La Gadget!

Brazil’s police are getting augmented reality glasses that use a small camera to identify criminals in a crowd. Photo: Flickr user Marcus Vegas

The Brazilian police force is getting a little bit Terminator on its citizens. Well, on its criminals at least.

No, they haven’t built a humanoid killer, they’ve just taken a cue from the augmented, analytical sight capabilities of cinema cyborgs. In the next few weeks, Brazilian police will begin testing pairs of “RoboCop” glasses, which can identify a criminal’s face in a crowd of people.

“To the naked eye, two people may appear identical,” says Major Leandro Pavani Agostini, chief of military police in Sao Paolo. But these powerful shades can scan up to 400 faces per second, up to 50 yards away, using 46,000 biometric points to identify an individual and ensure a correct match.

Faces are scanned with a tiny camera in the glasses then checked against a database of known criminals. A red light pops up if a perpetrator is found, and the cop can apprehend them without the need for questioning or requesting documents.

The settings of the glasses are adjustable, so if a crowd is more sparse and spread out, it can identify faces as far as 12 miles away at a slower rate.

Rio de Janeiro will be host to the 2014 World Cup and 2016 Olympic Games, so these “RoboCop” glasses could prove to be a very useful safety measure.

Brazilian Police Debut ‘RoboCop’ Glasses [AOL News via PopSci]

Researchers transformed the iPad 2 into a 3-D display using its front-facing camera

Turns out you don’t need a special display to get 3-D images and effects on a tablet like Apple’s iPad 2.

Thanks to the new iPad’s front-facing camera, researchers at France’s Engineering Human-Computer Interaction Research Group have been able to deliver real-time glasses-free 3-D using some clever head-tracking software.

The system is named “Head-Coupled Perspective” and works by following your head movements to provide a 3-D image that extends into the screen rather than towards your face, somewhat like looking through a window. It could also be applied to other Apple devices that sport a front-facing camera, like the iPhone 4.

In the past, there have been applications that use the iPad as a tool for 3-D modeling, as well as iPhone apps and gaming accessories that provide 3-D effects, with varying degrees of success. Johnny Chung Lee also created a similar, albeit more hardware intensive head-tracking system that used a Wiimote and IR-outfitted safety glasses.

Head-Coupled Perspective exists only as a tech demo for now, but may get turned into a full-fledged iOS app at some point.

iPad 2 Gets Glasses-free 3D Display [TUAW]

This imaginative turn-of-the-century drawing predicted that wave-energy generators, like Duffy’s Wave Motor, would be "a source of power for various purposes."

A young man with artistic aspirations could not have resisted the crowds of Market Street on a Saturday night. Nothing was more San Francisco than the street that cut through its heart. Like a weekly fair, all classes of society and the many flags of a port town mixed on the promenade from Powell to Kearny. “Everybody, anybody, left home and shop, hotel, restaurant, and beer garden to empty into Market Street in a river of color,” wrote one young woman of the time.

Among the throngs of sailors and servants, we could almost certainly have found a young Jewish kid with an overbearing father and a canted, humane take on human foibles. Long after the 1890s and far away from the city by the bay, he would make a name for himself with a set of drawings that made him the most popular cartoonist of the machine age.

This is an excerpt from Powering the Dream: The History and Promise of Green Technology, a new book by Alexis Madrigal, a senior editor at The Atlantic and former staff writer at Wired.com, where he was a prolific contributor to Wired Science. We’re proud to feature this excerpt from his book here.

It’s certainly not much of a stretch to imagine the twelve-year-old Reuben Goldberg participating in the weekly Saturday night parade and happening past a working model of one of the oddest machines he was likely to have encountered on the foggy streets of the city. The Wave-Power Air-Compressing Company was one of a half-dozen concerns that were attempting to harness the waves of the Pacific. And it just so happened to have an office at 602 Market, just a block from the main San Francisco procession. It may have been the sort of place that a machine-obsessed little boy might have found himself wandering on a Saturday night.

There he might have seen the small model that the company invited the public to come inspect. To the untrained eye, it might have looked like a very complex pier. A float attached to the structure could move up and down freely as the operator raised or lowered the level of water. Atop the pierlike contraption, there would have been a series of pipes containing compressors hooked onto a reservoir for the pressurized air. The machine’s inventor guaranteed that “whatever the extent of the perpendicular movement, the pumps take in some air and effect some compression, and thus do some work.” From there, the promoters of the company would have told anyone who cared to listen that the compressed air could be piped to shore, where it could run dynamos to generate electricity.

Like the other wave motors of the time, the model machine purported to show, step-by-step, how the horizontal or vertical motion of the waves would be converted into usable power for human beings. And always, this seemingly simple transformation seemed to require an inordinate amount of pumps, and chambers, and floats, and levers, and pulleys. They seem like terribly serious versions of what has come to be known as Rube Goldberg machines. The adjective derives from an insanely popular series of drawings Goldberg did in the 1920s called “Inventions.” One can now use his name to describe “any very complicated invention, machine, scheme, etc. laboriously contrived to perform a seemingly simple operation.”

One exemplary Goldberg cartoon shows how to build a better mousetrap, the constant aim of American inventors. In it, a mouse dives for a painting of cheese but instead breaks through the canvas, which lands him on a hot stove, so he jumps off it onto a conveniently located block of ice that is on a mechanical conveyor that drops the mouse onto a spring-loaded boxing glove that sends the mouse caroming into a basket that triggers a rocket that sends the mouse in the basket to the moon.

There’s a curious resonance between Goldberg’s famous cartoons and the wave motors of the 1890s. In both, there are no black boxes. Every part, in one way or another, has to physically touch every other part. Electronics didn’t exist and dynamos would ruin the fun. But if the classic drawings gently mock the foibles of mad inventors, it’s in the wave motor inventors of fin-de-siècle San Francisco that Goldberg could have seen the dead-serious version of ill-fated mechanical creative obsession.

A patent drawing for Duffy’s Wave Motor.

The group behind the machine might have been delightfully zany to the young Goldberg, too. The company was the brainchild of Terrence Duffy, an inventor who had recently completed a self-published book called From Darkness to Light: Or Duffy’s Compendiums of Nature’s Law, Forces, and Mind Combined in One (1893), which purported to explain all the mysteries of nature through magnetism. It served up wisdom like, “The blood is a magnetic fluid, floating in the tension of the body. The brain is the equivalent to a magnetic or electrical storage battery or coils. The brain floats in the tension of space, each organ being like millions of fine wires coiled in receptacles, for the storage of impressions, or experience, or intelligence.” A later book received a rather discourteous reception in the San Francisco Chronicle, in which the reviewer wrote, “mental unsoundness is everywhere visible in this book.” However, the only non-wave-motor or book-related mention of Duffy in the San Francisco papers of the era was his wife’s 1888 (very) public appeal that he properly support his three children.

But even if he was a deadbeat dad and a bit of a nut, Duffy had a dream as big as the Pacific Ocean and little could deter him. As a result, the Wave-Power Air-Compressing Company was incorporated in May of 1895. A florist-cum-inventor, Duffy, along with a small group of friends, offered a million dollars of stock. That is to say, they created a million shares out of thin air and offered them at $0.25, far below the “par value” of $1 each.

It was a big dream, but there’s no suggestion in the historical record that the wave motor ever became something other than the model that Goldberg may have seen. But in California at the time, it must have seemed like wave power was on the verge of a breakthrough. Starved for power, during the decades sandwiched around the turn of the century the state was home to a burst of wave motor experimentation that is startling in its intensity and seriousness.

In San Francisco, isolated even from the water power available to its easterly neighbors, the city’s promoters—who had much to gain from population increases—hungered for greater access to energy. Without it, the city could lose its spot atop the West Coast pecking order. Given the lack of cheap fuel or water power, having the Pacific Ocean sitting right there, uselessly pounding the city’s coastline, was rather galling. In fact, in 1895 the San Francisco Examiner held a contest asking its readers, “What shall San Francisco do to acquire one-half million citizens?”

This was the question of the day, upon which fortunes depended. Out of thousands of responses, the contest’s judges—including James Phelan, later mayor of the city and California senator—picked the following response: “Offer fifty thousand dollars ‘bonus’ to any inventor of a practical mechanism capable of commercially utilizing ocean ‘wave power.’” The suggestion had been submitted by one “Eureka Resurgam,” a mixed Classical pseudonym meaning, “I have found it” (Eureka) in Greek and “I will rise again” (Resurgam) in Latin. The contest’s selection was a powerful indication that San Francisco needed power—and that wave motors were considered a possible breakthrough technology that could get it.

But not everyone was buying what the wave motor guys were selling. “San Francisco is the home of the ‘wave-motor,’” one skeptic wrote in the magazine Machinery. “One comes around, as I am informed from one to three times a year. The external swell always rolling in here works the wave-motor man into an ecstasy of invention and he persuades an opulent friend to invest in the scheme.”

Expecting such responses, wave motor proponents could snap back with the prediction of America’s leading inventor: “Edison said only a few years since that electricity would be the future commercial power of the world. That is true,” went one advertisement. “He also said the ocean waves would furnish the power of the future. That is also true.”

A force-sensitive touch screen could provide another level of interaction for tablets like the iPad 2. Photo: Jon Snyder/Wired.com

The idea of a 3-D tablet or touchscreen is great, except that current hardware limits us to exploring that three-dimensional world in two dimensions.

Peratech’s QTC (“Quantum Tunnelling Composite”) Clear is a force-sensitive touchscreen that would change that. Philip Taysom, Peratech’s Joint CEO, says that the third dimension of pressure will let users “more easily manipulate and control information on the screen.”

That means artists could better create digital masterpieces on touchscreens, musicians could play their iPad tunes with greater finesse, and gamers could have additional actions and controls in their favorite titles. Applying varied levels of force could determine how deep you penetrate through a 3-D user interface.

QTC Clear (sandwiched between glass plates) could entirely replace a resistive touchscreen, or be used to enhance a capacitive one. It’s 6-8 microns thick, and can sense multitouch gestures and pressure changes of only a few microns.

Almost no current is drawn by the screen when it’s not in use, making it less of a battery-hog than the capacitive touchscreens we’re using in devices now.

Previously, QTC technology was opaque, so its applications were limited. But QTC Clear, which, like its name suggests, is transparent, already has its footing in the industry: It’s already been licensed to an undisclosed “leading touch screen manufacturer.” I can see the iPad 3 rumors lining up now.

QTC Clear [Peratech via Slashgear]

Virgin Oceanic's submarine will be able to ‘fly’ to the deepest parts of the ocean, nearly 37,000 feet below the surface. Rendering courtesy Virgin Oceanic.

Gallivanting billionaire Richard Branson is well on his way to space. Now he plans to explore the deepest parts of the ocean as well.

Branson announced his undersea exploration venture, Virgin Oceanic, on Tuesday. Unlike his suborbital-space-flight company, Virgin Galactic, the new venture is not accepting paying passengers. Instead, it will comprise only five deep-sea dives, each one carrying just one person, to the deepest points in each of the five oceans.

Virgin Oceanic tested its submarine in San Francisco Bay recently. Photo courtesy Virgin Oceanic.

To make the dives, Virgin has built a custom submarine and a flashy promotional video (see below). The sub’s cockpit has a bubble-like dome made of quartz, which can withstand 13 million pounds of pressure across its surface, Virgin says.

Overall, the sub looks a bit like an airplane, the better to “fly” to its underwater destinations. It weighs 8,000 pounds, is made of carbon fiber and titanium, and is rated to withstand pressure up to 37,000 feet below the surface. It’s not fast, though, with a maximum speed of just 3 knots and the ability to dive at 350 feet per minute, so its life-support systems are meant to last up to 24 hours.

In addition to its one human, the sub will have a water sampling system that can filter microbes and viruses from the water for later study. It will also be able to deploy unmanned probes. So far, the sub has only gone for a dip in San Francisco Bay.

Virgin Oceanic notes that sub was originally the brainchild of aviator and adventurer Steve Fossett, a friend of Branson’s, who crashed during a solo plane flight in 2007 but whose remains weren’t found until 2008.

To support and transport the sub, Virgin has retrofitted a 125-foot carbon-fiber racing catamaran with a crane, generators and lots of electronics.

The first dive will be to the bottom of the Mariana Trench, a 36,201-foot canyon deep in the western Pacific. Humans have made it to the bottom of the Mariana Trench just once before, in 1960. The commander of that expedition, Jacques Piccard, later recounted the experience of that record-setting dive.

The second dive will be to the bottom of the Puerto Rico Trench, which at 28,232 feet below the surface is the deepest trench in the Atlantic Ocean. Branson himself plans to pilot the sub for this journey. Branson will be the backup pilot for the Mariana dive too, if his designated pilot is unable to do it. Three other dives are planned, each to the deepest point of other three oceans.

There’s a serious scientific purpose to Virgin Oceanic’s missions, Virgin says, with actual scientists lined up to make the most of these dives for their research into bottom-dwelling microbes, bioluminescence and seafloor geology.

But mostly, we suspect, it will be an excellent adventure for the man Wired magazine has called a “happy-go-lucky tycoon.” More power to you, Sir Richard. We’ll be watching for the IMAX movie.