Tag Archive: Technology


Camera system

A digital camera that functions like an insect’s compound eye is reported in the journal Nature this week.

It comprises an array of 180 small lenses, which, along with their associated electronics, are stretched across a curved mounting.

The prototype currently has few pixels, so its images are low-resolution.

But the device displays an immense depth of field, and a very wide-angle view that avoids the distortion seen in standard camera lenses.

The development team, led from the University of Illinois at Urbana-Champaign, US, believes its new imaging system could eventually find uses in surveillance and for endoscopic investigations of the human body.

In their report, the researchers also suggest such cameras could be fitted to tiny aerial vehicles one day that behaved like robotic insects.

At the moment, the “bug-eye” system’s vision is comparable to that enjoyed by some ants and beetles.

The expectation, however, is that the array can be greatly enlarged.

“The compound design of the fly’s eye incorporates perhaps 28,000 small eyes, or ommatidia,” explained team-member Dr Jianliang Xiao from the University of Colorado at Boulder, US. “That’s the direction we want to move in,” he told BBC News.

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Studio Roosegaarde is set to expand its Intimacy 2.0 range of smart dresses that turn transparent based on electronic signals they receive.

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Hot on the heels of our recent coverage of the MJ v1.0, a jacket that enables wearers to make music solely by gesturing, we’ve come across another example of wearable tech. Netherlands-based design group Studio Roosegaarde is set to expand its Intimacy 2.0 range of smart clothing to include a men’s business suit which turns transparent when the wearer is being untruthful.

The group has already released its range of womenswear that turns transparent based on electronic signals it receives. The clothes used ‘smart e-foils’ that are naturally transparent but turn cloudy when light from LEDs are refracted through them. The dresses were connected to sensors that could detect the heart rate – when their bpm hit a certain point, the LEDs were turned off and the material became transparent. Now the studio hopes to apply similar technology to create a business suit for men that monitors their vitals to discern whether they are lying.

Although essentially a high-fashion concept that professionals are not likely to ever willingly wear, the idea does recognize the recent call by consumers for business transparency and corporate social responsibility. Are there other ways wearable technology could more positively help us reveal aspects of our personalities?

Caltech engineers build self-healing electronic chips that repair themselves

Imagine that the chips in your smart phone or computer could repair and defend themselves on the fly, recovering in microseconds from problems ranging from less-than-ideal battery power to total transistor failure. It might sound like the stuff of science fiction, but a team of engineers at the California Institute of Technology (Caltech), for the first time ever, has developed just such self-healing integrated chips.

The team, made up of members of the High-Speed Integrated Circuits laboratory in Caltech’s Division of Engineering and Applied Science, has demonstrated this self-healing capability in tiny power amplifiers. The amplifiers are so small, in fact, that 76 of the chips-including everything they need to self-heal-could fit on a single penny. In perhaps the most dramatic of their experiments, the team destroyed various parts of their chips by zapping them multiple times with a high-power laser, and then observed as the chips automatically developed a work-around in less than a second. “It was incredible the first time the system kicked in and healed itself. It felt like we were witnessing the next step in the evolution of integrated circuits,” says Ali Hajimiri, the Thomas G. Myers Professor of Electrical Engineering at Caltech. “We had literally just blasted half the amplifier and vaporized many of its components, such as transistors, and it was able to recover to nearly its ideal performance.”

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A new discovery by researchers at the ICFO has revealed that graphene is even more efficient at converting light into electricity than previously known. Graphene is capable of converting a single photon of light into multiple electrons able to drive electric current. The discovery is an important one for next-generation solar cells, as well as other light-detecting and light-harvesting technologies.

A paradigm shift in the materials industry is likely within the near-future as a variety of unique materials replaces those that we commonly use today, such as plastics. Among these new materials, graphene stands out. The single-atom-thick sheet of pure carbon has an enormous number of potential applications across a variety of fields. Its potential use in high-efficiency, flexible, and transparent solar cells is among the potential applications. Some of the other most discussed applications include: foldable batteries/cellphones/computers, extremely thin computers/displays, desalination and water purification technology, fuel distillation, integrated circuits, single-molecule gas sensors, etc.

“In most materials, one absorbed photon generates one electron, but in the case of graphene, we have seen that one absorbed photon is able to produce many excited electrons, and therefore generate larger electrical signals,” says Frank Koppens, group leader at ICFO.

This ability makes graphene extremely appealing for any technology that requires the conversion of light into electricity, particularly because it allows the development of light detectors with improved efficiency, and should lead to solar cells that are able to capture light energy from all of the solar spectrum with lower loss.

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Researchers from North Carolina State University have developed elastic, self-healing wires in which both the liquid-metal core and the polymer sheath reconnect at the molecular level after being severed.

“Because we’re using liquid metal, these wires have excellent conductive properties,” says Dr. Michael Dickey, an assistant professor of chemical and biomolecular engineering at NC State and co-author of a paper on the work. “And because the wires are also elastic and self-healing, they have a lot of potential for use in technologies that could be exposed to high-stress environments.”

The researchers first created tiny tunnels, called microfluidic channels, in a commercially available self-healing polymer using solid wire. By filling those channels with a liquid-metal alloy of indium and gallium, they were able to create a liquid-metal wire in an elastic sheath. Because the wire is liquid, it can be stretched along with the polymer sheath.

When the wires are sliced or severed, the liquid metal oxidizes – forming a “skin” that prevents it from leaking out of its sheath. When the severed edges of the wire are placed back together, the liquid metal reconnects and the sheath re-forms its molecular bonds.

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The tablet that turns itself lumpy

When you can’t feel individual keys on a touchscreen device it can be hard to type at speed.

That is why Tactus, a company based in California, has developed technology which can turn a typical flat tablet screen into a real keyboard with bumpy buttons.

The keyboard rises from the tablet when needed, before disappearing when the typing is done.

Company claims creation of Harry Potter-style invisibility cloak

A Canadian company called Hyperstealth says that it’s developed a wearable cloak that uses “Quantum Stealth” technology to provides complete invisibility across the visible, infrared, and ultraviolet spectrum by bending light around objects. We’re pretty sure that this is mostly or entirely not true, so stick with us while we explain why we’re so skeptical.

The first thing to mention is that the pictures seen here of the cloak in operation are all just simulations, Photoshopped by Hyperstealth on the grounds that “for security issues we can not show the actual technology.” We’ll get in to that later, but Hyperstealth says that these images are an accurate simulation, although the cloak itself does apparently work a bit better than the pictures show.

Here’s the claim, from inventor and Hyperstealth CEO Guy Cramer, as described in an interview in The Atlantic from 2011 with an appropriately skeptical journalist:

Late last year, Cramer told me about a project he’d been working on for two years that sounded like it relied on refraction. He called it “quantum stealth,” and it seemed like science fiction. “It works by bending light around an object,” he explained at the time. “So far, we’ve been able to make an object about the size of an orange completely disappear.” When he said this, I nodded and nearly choked on my skepticism. If Cramer spoke the truth, he’d have surpassed the preeminent experts in the study of light refraction.

Cramer provided no proof other than a video that showed a woman walking behind some sort of transparent screen, and then disappearing as the screen was somehow activated, a similar effect to the pictures in this article, although the current generation of Quantum Stealth is a fabric that can be draped like a cloak. According to Cramer:

“We’re bending the entire spectrum of light — infrared, ultraviolet, thermal. People are disappearing. It doesn’t use cameras or mirrors or require power… It is lightweight and quite inexpensive.”…[If you walked into a room with a soldier in it wearing Quantum Stealth], “you wouldn’t see him at all. He’d be completely invisible to you.”

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Digits demo screenshot

Hand sensor

Digits demo screenshot

A wrist-worn sensor that creates 3D-models of the user’s hand movements in real-time has been built by Microsoft.

The Digits prototype is part of an effort to create a mobile device that would allow its owner to control a range of equipment using hand gestures.

The firm said it could be used as a virtual TV control, a way to operate a smartphone while it is in the user’s pocket, and to play video games.

It is designed to be less cumbersome and uncomfortable than sensor gloves.

However, some experts question whether consumers would want to wear such a device during their day-to-day activities.

Infrared laser

The Digits sensor was developed at Microsoft’s computer science laboratory at the University of Cambridge, with help from researchers at Newcastle University and the University of Crete.

It was unveiled at a conference on user-interface technology in Massachusetts, and a video showing off the product has been posted online.

Digits uses a camera-based sensor that detects infrared (IR) light coupled with software that interprets the data produced to construct a model of a “fully articulated hand skeleton”. This is then used to interpret what the user’s hand is doing.

The equipment involves a IR laser beam which sends out a thin line across the user’s hand to measure the distance to their fingers and thumbs to determine to what degree they are bent upwards.

In addition a ring of IR light emitting diodes (LEDs) are used to illuminate the hand and determine the position of the user’s fingertips.

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A woman holds up Japanese electronics giant Hitachi's new quartz glass plate which can be used to store data indefinitely. (AFP - Yoshikazu Tsuno)

As Bob Dylan and the Rolling Stones prove, good music lasts a long time; now Japanese hi-tech giant Hitachi says it can last even longer — a few hundred million years at least.

The company on Monday unveiled a method of storing digital information on slivers of quartz glass that can endure extreme temperatures and hostile conditions without degrading, almost forever.

And for anyone who updated their LP collection onto CD, only to find they then needed to get it all on MP3, a technology that never needs to change might sound appealing.

“The volume of data being created every day is exploding, but in terms of keeping it for later generations, we haven’t necessarily improved since the days we inscribed things on stones,” Hitachi researcher Kazuyoshi Torii said.

“The possibility of losing information may actually have increased,” he said, noting the life of digital media currently available — CDs and hard drives — is limited to a few decades or a century at most.

And the rapid development of technologies has resulted in frequent changes of data-reading hardware.

“As you must have experienced, there is the problem that you cannot retrieve information and data you managed to collect,” said Torii, apparently referring to now-obsolete record players and cine films.

Hitachi’s new technology stores data in binary form by creating dots inside a thin sheet of quartz glass, which can be read with an ordinary optical microscope.

Provided a computer with the know-how to understand that binary is available — simple enough to programme, no matter how advanced computers become — the data will always be readable, Torii said.

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Minority Report

A software engineer in my Facebook community wrote recently about his outrage that when he visited Disneyland, and went on a ride, the theme park offered him the photo of himself and his girlfriend to buy – with his credit card information already linked to it. He noted that he had never entered his name or information into anything at the theme park, or indicated that he wanted a photo, or alerted the humans at the ride to who he and his girlfriend were – so, he said, based on his professional experience, the system had to be using facial recognition technology. He had never signed an agreement allowing them to do so, and he declared that this use was illegal. He also claimed that Disney had recently shared data from facial-recognition technology with the United States military.

Yes, I know: it sounds like a paranoid rant.

Except that it turned out to be true. News21, supported by the Carnegie and Knight foundations, reports that Disney sites are indeed controlled by face-recognition technology, that the military is interested in the technology, and that the face-recognition contractor, Identix, has contracts with the US government – for technology that identifies individuals in a crowd.

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London to New York in Less than an hour: The X-51A Waverider is designed to ride on its own shockwave, accelerating to about Mach 6

Perhaps Han Solo said it best in Star Wars when, describing his hyper-fast smuggling spaceship the Millennium Falcon, he said, “It may not look like much, but it’s got it where it counts.”

While the Air Force might take exception to being likened to the Falcon, in reality the platypus-nosed X-51A Waverider hypersonic flight test vehicle really doesn’t look like much. But it definitely has it where it counts.

On Tuesday, the unmanned 25-foot-long vehicle will be dropped off of the wing of a converted B-52 bomber off the California coast and try to fly for 300 seconds at science fiction-like speeds of Mach 6, over 4,500 mph – fast enough to fly from New York to London in less than an hour.

It is the Pentagon’s latest test as it studies the possibilities of hypersonic flight, defined as moving at speeds of Mach 5 (about 3,400 mph) and above without leaving the atmosphere. The technology could eventually bring missiles or airplanes to the other side of the planet in minutes instead of hours.

The Air Force and the Pentagon are not saying much about Tuesday’s test, but the military could use such technology for reconnaissance aircraft, cruise missile-like weapons or vehicles that could carry people or cargo so fast adversaries would not have time to react, according to military analysts.

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Over the past couple of years 3D printing has become more and more impressive, capable of quickly and efficiently creating a large range of objects. But one professor from the University of Southern California has dared to dream even bigger, developing a 3D printing system that could effectively print an entire home in less than a full day.

Called Contour Crafting, the process involves utilizing a gigantic 3D printer that is placed overhead an empty lot where the home will be built. The machine builds walls with multiple layers of concrete, adding plumbing and electrical wiring as it goes and eventually leaves a complete home that only needs doors and windows to complete.

If that wasn’t impressive enough, the system can also robotically paint walls or add tiles to the floors. Although Contour Crafting was created with the thought of easy to build, low cost housing in mind, the process can be modified to create luxurious homes or larger buildings.

This might just look like a microscope image of some strange, small life-form. But actually its a view of a massive 281-gigapixel image of a zebrafish embryo, which can be zoomed in on to show sub-cellular levels of detail.

The image is the product of a new technique called virtual nanoscopy, which is described in the Journal of Cell Biology. The process involves stitching together nanometer resolution photographs of what’s placed under the microscope, and the result is an image which can be explored a little like a Google Map.

To give you some sense of scale, the whole embryo, pictured above, measures 1.5 millimeters in length. At the other end of the scale, the dark dots in the image below are cell nuclei. Mind. Blown.

This 281-Gigapixel Image Depicts an Entire Animal at the Cellular Level

Researchers in the Department of Biological Engineering at MIT will receive up to $32 million over the next five years from the Defense Advanced Research Projects Agency (DARPA) and the National Institutes of Health (NIH) to develop a technology platform that will mimic human physiological systems in the laboratory, using an array of integrated, interchangeable engineered human tissue constructs.

A cooperative agreement between MIT and DARPA worth up to $26.3 million will be used to establish a new program titled “Barrier-Immune-Organ: MIcrophysiology, Microenvironment Engineered TIssue Construct Systems” (BIO-MIMETICS) at MIT, in collaboration with researchers at the Charles Stark Draper Laboratory, MatTek Corp. and Zyoxel Ltd. The BIO-MIMETICS proposal was one of two award winners selected as part of the Microphysiological Systems (MPS) program at DARPA, and will be led by MIT professor Linda Griffith in collaboration with MIT professors Steven Tannenbaum, Darrell Irvine, Paula Hammond, Eric Alm and Douglas Lauffenburger. Jeffrey Borenstein and Shankar Sundaram will lead the work at Draper Laboratory, Patrick Hayden will lead the work at MatTek, and David Hughes will lead the work at Zyoxel.

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Gun enthusiast “HaveBlue” has documented the process of what appears to be the first test firing of a firearm made with a 3D printer.

Before you go about locking yourself in your closet, you should know that the only printed part of the gun was the lower receiver. But, according to the American Gun Control Act, the receiver is what counts as the firearm.

HaveBlue reportedly used a Stratasys 3D printer to craft the part, assembled it as a .22 pistol and fired more than 200 rounds with it.

The tester then attempted to assemble a rifle with the part and a .223 upper receiver but had “feed and extraction issues.” The problem may not in fact be with the 3D-printed part, though, as the issues remained when a standard aluminum lower was used.

3D printer gun designs have been floating around the Internet for some time now, but HaveBlue seems to be the first to take it to the next level.

These words are emblazoned on the website Creativitycap.com, and they represent the vision of neuroscientist Allan Snyder. Snyder believes we all possess untapped powers of cognition, normally seen only in rare individuals called savants, and accessing them might take just a few jolts of electricity to the brain. It sounds like a Michael Crichton plot, but Snyder, of the University of Sydney, Australia, says he wouldn’t be surprised to see a prototype of the creativity cap within a couple of years. His research suggests that brain stimulation improves people’s ability to solve difficult problems. But Snyder’s interpretation of his findings remains controversial, and the science of using brain stimulation to boost thinking is still in its early stages.

“I think it’s a bit of a minefield,” said psychologist Robyn Young of Flinders University in Australia, who has tried to replicate Snyder’s early experiments. “I’m not really sure whether the technology is developed that can turn it into a more accurate science.” Snyder has long been fascinated by savants — people with a developmental brain disorder (often autism) or brain injury who display prowess in a particular area, such as mathematics, art or music, which far exceeds the norm. Kim Peek, who provided the inspiration for Dustin Hoffman’s character in the movie “Rain Man,” was a savant who could memorize entire books after a single reading, or instantly calculate what day of the week any calendar date fell on. But he had a severe mental disability that prevented him from performing simple actions such as buttoning his shirt.

Wisconsin psychiatrist and savant expert Darold Treffert describes a skill like Kim’s as an “island of genius that stands in stark contrast to the overall handicap.” Other savants acquire their abilities after a severe brain injury or illness. Alonzo Clemons suffered a head injury as a toddler that left him mentally disabled, but endowed him with the ability to accurately sculpt beautiful clay animals after only briefly glimpsing them. And patients with frontotemporal dementia have been known to suddenly display artistic and musical abilities, like the successful businessman who developed dementia and started doing award-winning painting.

But not all savant abilities come with a trade-off, says Treffert. Sometimes it’s possible for otherwise normal people to have savant skills. Snyder hypothesizes that all people possess savant-like abilities in a dormant form, but that savants have “privileged access” to less-processed, lower-level information. In a normal brain, top-down controls suppress the barrage of raw data our brains take in, enabling us to focus on the big picture.

“We all have that information,” Snyder said, “but our brains are deliberately wired not to see it.”

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The art of humorous storytelling in Japan, known as rakugo, isn’t as popular as it once was. But now an android has joined the ranks of comics who kneel on cushions while spinning out jokes. The narrative droid is a copy of Beicho Katsura III, an 86-year-old rakugo comic recognized by the government as a Living National Treasure. The Beicho Android, as it’s known, is the work of Osaka University professor Hiroshi Ishiguro, creator of the Geminoid series of lifelike androids, and makeup artist Shinya Endo. Powered by air servos, the droid has all the idiosyncratic moves of Beicho performing rakugo, an art in which performers wear kimono and use only a kerchief and hand fan as props.

As seen in the vid below, it waves its arms, bows its head, and speaks in a gravelly voice like the master while narrating tales. Its mouth isn’t all that expressive but from far away, it’s hard to notice. The robot cracked up a few journalists at a press conference. It took two months to build and cost some $1 million, according to Sankei News. It was unveiled as part of an exhibition that combines a retrospective on Beicho’s career with exhibits on cutting edge tech in Osaka. It’s on from August 1 to 9 at Sankei Hall Breeze, where the droid is slated to do hourly impersonations of the elderly artist.

Scientists have invented artificial pores as small as the ones in your cells—something unimaginable until now. These sub-nanometer synthetic pores are so tiny that they can distinguish between ions of different substances, just like a real cell. It’s an amazing engineering feat. Once they tune them to detect different substances, researchers claim that this seemingly miraculous matter would be able to do truly incredible things, from “purifying water to kill tumors and diseases by regulating the substances inside of cells.”

The scientists used the Advanced Photon Source at Argonne National Laboratory to create the pores, gluing donut-shaped molecules—called rigid macrocycles—on top of each other using hydrogen bonding. According to one of the senior authors of the study, University of Nebraska-Lincoln Ameritas University’s chemistry professor Xiao Cheng Zeng—”this nanotube can be viewed as a stack of many, many rings. The rings come together through a process called self-assembly, and it’s very precise. It’s the first synthetic nanotube that has a very uniform diameter.” They are about 8.8 angstroms thick, just one tenth of a nanometer.

They are now capable of passing potassium ions and water, but not other ions, like sodium and lithium ions. Basically, this means that you could pass salt water through a fabric made of this wonder material and make it drinkable—instantly. Lead researcher Dr. Bing Gong—a chemistry professor at University of Buffalo—says that “the idea for this research originated from the biological world, from our hope to mimic biological structures, and we were thrilled by the result. We have created the first quantitatively confirmed synthetic water channel. Few synthetic pores are so highly selective.” Gong says that they now have to experiment with the pores’ structure to find out how the materials are transported through the pores and tune it to select which substances they want to filter and which ones they want to let through. If they are successful, this material has an incredible potential to change almost everything.

The Power of Networks

predictive policing algorithms

Columbo would have hated the latest trend in crime-fighting. And it definitely would have made Dirty Harry even more unhinged.

But Sherlock Holmes, now he would have been impressed. The logic, the science, the compilation of data–all the stuff of Holmesian detective work.

I’m talking about something known as predictive policing–gathering loads of data and applying algorithms to deduce where and when crimes are most likely to occur. Late last month, the Los Angeles Police Department announced that it will be expanding its use of software created by a California startup named PredPol.

For the past six months, police in that city’s Foothill precinct have been following the advice of a computer and the result, according the the LAPD, is a 25 percent drop in reported burglaries in the neighborhoods to which they were directed. Now the LAPD has started using algorithm-driven policing in five more precincts covering more than 1 million people.

PredPol’s software, which previously had been tested in Santa Cruz–burglaries there dropped by 19 percent–actually evolved from a program used to predict earthquakes. Now it crunches years of crime data, particularly location and time, and refines it with what’s known about criminal behavior, such as the tendency of burglars to work the neighborhoods they know best.

Before each shift, officers are given maps marked with red boxes of likely hot spots for property crimes, in some cases zeroing in on areas as small as 500 feet wide. They’re told that whenever they’re not on calls, they should spend time in one of the boxes, preferably at least 15 minutes of every two hours. The focus is less on solving crimes, and more on preventing them by establishing a high profile in crime zones the computer has targeted.

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