Hardware

Via The Atlantic

By Alexis Madrigal

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Pshhhkkkkkkrrrrkakingkakingkakingtshchchchchchchchcch*ding*ding*ding"

Modem dialup by John Pemberton

Of all the noises that my children will not understand, the one that is nearest to my heart is not from a song or a television show or a jingle. It's the sound of a modem connecting with another modem across the repurposed telephone infrastructure. It was the noise of being part of the beginning of the Internet.

I heard that sound again this week on Brendan Chillcut's simple and wondrous site: The Museum of Endangered Sounds. It takes technological objects and lets you relive the noises they made: Tetris, the Windows 95 startup chime, that Nokia ringtone, television static. The site archives not just the intentional sounds -- ringtones, etc -- but the incidental ones, like the mechanical noise a VHS tape made when it entered the VCR or the way a portable CD player sounded when it skipped. If you grew up at a certain time, these sounds are like technoaural nostalgia whippets. One minute, you're browsing the Internet in 2012, the next you're on a bus headed up I-5 to an 8th grade football game against Castle Rock in 1995.

The noises our technologies make, as much as any music, are the soundtrack to an era. Soundscapes are not static; completely new sets of frequencies arrive, old things go. Locomotives rumbled their way through the landscapes of 19th century New England, interrupting Nathaniel Hawthorne-types' reveries in Sleepy Hollows. A city used to be synonymous with the sound of horse hooves and the clatter of carriages on the stone streets. Imagine the people who first heard the clicks of a bike wheel or the vroom of a car engine. It's no accident that early films featuring industrial work often include shots of steam whistles, even though in many (say, Metropolis) we can't hear that whistle.

When I think of 2012, I will think of the overworked fan of my laptop and the ding of getting a text message on my iPhone. I will think of the beep of the FastTrak in my car as it debits my credit card so I can pass through a toll onto the Golden Gate Bridge. I will think of Siri's uncanny valley voice.

But to me, all of those sounds -- as symbols of the era in which I've come up -- remain secondary to the hissing and crackling of the modem handshake. I first heard that sound as a nine-year-old. To this day, I can't remember how I figured out how to dial the modem of our old Zenith. Even more mysterious is how I found the BBS number to call or even knew what a BBS was. But I did. BBS were dial-in communities, kind of like a local AOL. You could post messages and play games, even chat with people on the bigger BBSs. It was personal: sometimes, you'd be the only person connected to that community. Other times, there'd be one other person, who was almost definitely within your local prefix.

When we moved to Ridgefield, which sits outside Portland, Oregon, I had a summer with no friends and no school: The telephone wire became a lifeline. I discovered Country Computing, a BBS I've eulogized before, located in a town a few miles from mine. The rural Washington BBS world was weird and fun, filled with old ham-radio operators and computer nerds.  After my parents' closed up shop for the work day, their "fax line" became my modem line, and I called across the I-5 to play games and then, slowly, to participate in the nascent community.

In the beginning of those sessions, there was the sound, and the sound was data.

Fascinatingly, there's no good guide to the what the beeps and hisses represent that I could find on the Internet. For one, few people care about the technical details of 1997's hottest 56k modems. And for another, whatever good information exists out there predates the popular explosion of the web and the all-knowing Google.

So, I asked on Twitter and was rewarded with an accessible and elegant explanation from another user whose nom-de-plume is Miso Susanowa. (Susanowa used to run a BBS.) I transformed it into the annotated graphic below, which explains the modem sound part-by-part. (You can click it to make it bigger.)

This is a choreographed sequence that allowed these digital devices to piggyback on an analog telephone network. "A phone line carries only the small range of frequencies in which most human conversation takes place: about 300 to 3,300 hertz," Glenn Fleishman explained in the Times back in 1998. "The modem works within these limits in creating sound waves to carry data across phone lines." What you're hearing is the way 20th century technology tunneled through a 19th century network; what you're hearing is how a network designed to send the noises made by your muscles as they pushed around air came to transmit anything, or the almost-anything that can be coded in 0s and 1s.

The frequencies of the modem's sounds represent parameters for further communication. In the early going, for example, the modem that's been dialed up will play a note that says, "I can go this fast." As a wonderful old 1997 website explained, "Depending on the speed the modem is trying to talk at, this tone will have a different pitch."

That is to say, the sounds weren't a sign that data was being transferred: they were the data being transferred. This noise was the analog world being bridged by the digital. If you are old enough to remember it, you still knew a world that was analog-first.

Long before I actually had this answer in hand, I could sense that the patterns of the beats and noise meant something. The sound would move me, my head nodding to the beeps that followed the initial connection. You could feel two things trying to come into sync: Were they computers or me and my version of the world?

Via LinuxInsider

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Bigger may be better if you're from Texas, but it's becoming increasingly clear to the rest of us that it really is a small world after all.

Case in point? None other than what one might reasonably call the invasion of tiny Linux PCs going on all around us.

We've got the Raspberry Pi, we've got the Cotton Candy. Add to those the Mele A1000, the VIA APC, the MK802 and more, and it's becoming increasingly difficult not to compute like a Lilliputian.

Where's it all going? That's what Linux bloggers have been pondering in recent days. Down at the seedy Broken Windows Lounge the other night, Linux Girl got an earful.

It's 'Fantastic'

"Linux has been heading towards one place for many years now: complete and total world domination!" quipped Thoughts on Technology blogger and Bodhi Linux lead developer Jeff Hoogland.

"All joking aside, these new devices simply further showcase Linux's unmatched ability to be flexible across an array of different devices of all sizes and power," Hoogland added.

"Having a slew of devices that are powerful enough for users to browse the web -- which, let's be honest, is all a good deal of people do these days -- for under 100 USD is fantastic," he concluded.

'It Only Gets More Exciting'

Similarly, "I believe that the medley of tiny Linux PCs we're seeing hitting the market lately is the true sign of the Post PC Era," suggested Google+ blogger Linux Rants.

"The smartphone started it, but the Post PC Era will begin in earnest when the functionality that we currently see in the home computer is replaced by numerous small appliance-type devices," Linux Rants explained. "These tiny Linux PCs are the harbinger of those appliances -- small, low-cost, programmable devices that can be made into virtually anything the owner desires."

Other devices we're already seeing include "the oven that you can turn on with a text message, the espresso machine that you can control with a text message, home security systems and cars that can be controlled from your smartphone," he added. "This is where the Post PC Era begins, and it only gets more exciting from here."

'There Is No Reason Not to Do It'

This is "definitely the wave of the future," agreed Google+ blogger Kevin O'Brien.

"Devices of all kinds are getting smaller and smaller, while simultaneously increasing their power," O'Brien explained. "Exponential growth does that over time.

"My phone in my pocket right now has more computing power than the rockets that went to the moon," he added. "And if you look ahead, a few more turns of exponential growth means we'll have the equivalent of a full desktop computer the size of an SD card within a few years."

At that point, "everything starts to be computerized, because adding a little intelligence is so cheap there is no reason not to do it," O'Brien concluded.

'We're Approaching That Future'

Indeed, "many including myself have long been harping on the fact that today's computers are orders of magnitude faster than early systems on which we ran graphic interfaces and got work done, and yet are dismissed as toys," Hyperlogos blogger Martin Espinoza told Linux Girl.

"A friend suggested to me once that eventually microwave ovens would contain little Unix servers 'on a chip' because that would be basically all you could get, because it would actually be cheaperto use such a system when given the cost of developing an alternative," he said. "Seeing the cost of these new products it looks to me like we're approaching that future rapidly.

"There has always been demand for low-cost computers, and the massive proliferation of low-cost, low-power cores has pushed their price down to the point where we can finally have them," Espinoza concluded.

"Even adjusted for inflation," he said, "many of these computers are an order of magnitude cheaper than the cheapest useful home computers from the time when personal computing began to gain popularity, and yet they are certainly powerful enough to serve many roles including many people's main or even only 'computer.'"

'It Gives Me Hope'

Consultant and Slashdot blogger Gerhard Mack was similarly enthusiastic.

"I love it," Mack told Linux Girl.

"When I was a child, my parents brought home all sorts of fun things to tinker with, and I learned while doing it," he explained. "But these last few years it seems like the learning electronics and their equivalents have disappeared into a mass of products that are only for what the manufacturer designed them for and nothing else.

"I am loving the return of my ability to tinker," Mack concluded. "It gives me hope that there can be a next generation of kids who can love the enjoyment of simply creating things."

'They Look a Bit Expensive'

Not everyone was thrilled, however.

"Okay, I am not all that excited about the invasion of the tiny PC," admitted Roberto Lim, a lawyer and blogger on Mobile Raptor.

"With 7-inch Android tablets with capacitive displays, running Android 4.0 and with access to Google (Nasdaq: GOOG) Play's Android app market, 8 GB or storage expandable via a Micro SD card, 1080p video playback, a USB port and HDMI out and 3000 to 4000 mAh batteries starting at US$90, it is a bit hard to get excited about these tiny PCs," Lim explained.

"Despite the low prices of the tiny PCs, they all look a bit expensive when compared to what is already in the market," he opined.

'These Devices Have a Niche'

The category really isn't even all that new, Slashdot blogger hairyfeet opined.

"There have been mini ARM-based Linux boxes for several years now," he explained. "From portable media players to routers to set-top boxes, there are a ton of little bitty boxes running embedded Linux."

It's not even quite right to call such devices PCs "because PC has an already well-defined meaning: it was originally 'IBM PC compatible,'" hairyfeet added. "Even if you give them the benefit of the doubt, PCs have always been general use computers, and these things are FAR from general use."

Rather, "they are designed with a very specific and narrow job in mind," he said. "Trying to use them as general computers would just be painful."

So, "in the end these devices have a niche, just as routers and beagleboards and the pi does, but that niche is NOT general purpose in any way, shape, or form," hairyfeet concluded.

'Opportunities for Specialists'

Chris Travers, a Slashdot blogger who works on the Ledger SMB project, considered the question through the lens of evolutionary ecology.

"In any ecological system an expanding niche allows for differentiation, and a contracting niche requires specialization," Travers pointed out. 'So, for example, if a species of moth undergoes a population explosion, predators of that moth will often specialize and be more picky as to what prey they go after."

The same thing happens with markets, Travers suggested.

"When a market expands, it provides opportunities for specialists, but when it contracts, only the generalists can survive," he told Linux Girl.

'Niche Environments'

The tiny new devices are "replacements for desktop and laptop systems in niche environments," Travers opined.

"In many environments these may be far more capable than traditional systems," he added.

The bottom line, though, "is that the Linux market is growing at a healthy rate," Travers concluded.

'The Right Way to Do IT'

"Moore's Law allows the world to do more with less hardware and so does FLOSS," blogger Robert Pogson told Linux Girl. "It's the right way to do IT rather than paying a bunch for the privilege of running the hardware we own."

Last year was a turning point, Pogson added.

"More people bought small, cheap computers running Linux than that other OS, and the world saw that things were fine without Wintel," he explained. "2012 will bring more of the same." By the end of this year, in fact, "the use of GNU/Linux on small cheap computers doing what we used to do with huge hair-drying Wintel PCs will be mainstream in many places on Earth," Pogson predicted. "In 2012 we will see a major decline in the number of PCs running that other OS. We will see major shelf-space given to Linux PCs at retail."

Via New Scientist

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(Image: Surrey Satellite Technology)

Small satellites capable of docking in orbit could be used as "space building blocks" to create larger spacecraft, says UK firm Surrey Satellite Technology. Not content with putting a smartphone app in space, the company now plans to launch a satellite equipped with a Kinect depth camera, allowing it to locate and join with other nearby satellites.

SpaceX's Dragon spacecraft is the latest of many large-scale vehicles to dock in space, but joining small and low-cost craft has not been attempted before. Surrey Satellite Technology's Strand-2 mission will launch two 30cm-long satellites on the same rocket, then attempt to dock them by using the Kinect sensor to align together in 3D space.

"Once you can launch low cost nanosatellites that dock together, the possibilities are endless - like space building blocks," says project leader Shaun Kenyon. For example, it might be possible to launch the components for a larger spacecraft one piece at a time, then have them automatically assemble in space.

Researchers have also previously suggested that Kinect could calculate the mass of astronauts in zero gravity on board the International Space Station, as traditional scales do not work in orbit.

via dvice

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Via Phys Org

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A paper-based touch pad on an alarmed cardboard box detects the change in capacitance associated with the touch of a finger to one of its buttons.

The keypad requires the appropriate sequence of touches to disarm the system. Image credit: Mazzeo, et al.

The touch pads are made of metallized paper, which is paper coated in aluminum and transparent polymer. The paper can function as a capacitor, and a laser can be used to cut several individual capacitors in the paper, each corresponding to a key on the touch pad. When a person touches a key, the key’s capacitance is increased. Once the keys are linked to external circuitry and a power source, the system can detect when a key is touched by detecting the increased capacitance.

According to lead researcher Aaron Mazzeo of Harvard University, the next steps will be finding a power source and electronics that are cheap, flexible, and disposable.

Among the applications, inexpensive touch pads could be used for security purposes. The researchers have already developed a box with an alarm and keypad that requires a code to allow authorized access. Disposable touch pads could also be useful in sterile or contaminated medical environments.

Via Slash Gear

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Green plants use photosynthesis to convert water and sunlight into energy used to help the plant grow. Scientists have created the first practical artificial leaf that mimics the natural process and holds promise for sustainable green energy. The key to this practical artificial leaf is that unlike earlier devices it doesn’t use expensive components in its construction.

The new artificial leaf is made from inexpensive materials and uses low-cost engineering and manufacturing processes making it much more practical. The artificial leaf has an component to collect sunlight sandwich between two films that generate oxygen and hydrogen gas. When the artificial leaf is placed into a jar of water and placed in sunlight, it bubbles, releasing hydrogen that can be used by fuel cells to make electricity. Previous designs needed expensive materials like platinum along with expensive manufacturing processes.

The new artificial leaf replaces the costly platinum with a less expensive nickel-molybdenum-zinc compound. The opposite side of the leaf has a cobalt film that generates oxygen gas. The hope is that this sort of device can be used to generate electricity for remote places that are off the electrical grid. The tech could also be used to power all sorts of devices including phones and more.

“Considering that it is the 6 billion nonlegacy users that are driving the enormous increase in energy demand by midcentury, a research target of delivering solar energy to the poor with discoveries such as the artificial leaf provides global society its most direct path to a sustainable energy future,” he says.

Via Extreme Tech

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According to reports from various industry sources, the Chinese government has begun the process of picking a national computer chip instruction set architecture (ISA). This ISA would have to be used for any projects backed with government money — which, in a communist country such as China, is a fairly long list of public and private enterprises and institutions, including China Mobile, the largest wireless carrier in the world. The primary reason for this move is to lessen China’s reliance on western intellectual property.

There are at least five existing ISAs on the table for consideration — MIPS, Alpha, ARM, Power, and the homegrown UPU — but the Chinese leadership has also mooted the idea of defining an entirely new architecture. The first meeting to decide on a nationwide ISA, attended by government officials and representatives from academic groups and companies such as Huawei and ZTE, was held in March. According to MIPS vice president Robert Bismuth, a final decision will be made in “a matter of months.”

China has a long history with MIPS and Alpha. Loongson processors, which power millions of Chinese school computers, use MIPS — and the ShenWei processors (pictured right) found in China’s first homegrown supercomputer, the Sunway Bluelight MPP, are based on the Alpha ISA. MIPS Technologies (the company) hasn’t been doing very well recently, and it’s rumored that the Sunnyvale-based company could be up for sale — a purchase I’m sure the Chinese government could afford.

According to EE Times, there are some 34 ARM licensees in China, but at $5 million for a single Cortex-A9 core license, it’s unlikely that ARM will be China’s choice. The Power ISA is cheaper, but lacks the software ecosystems that ARM and MIPS enjoy. ShenWei/Alpha is also a possibility, but again it cannot compete with MIPS’ installed base.

The other option, of course, is developing a brand new ISA — a daunting task, considering you have to create an entire software (compiler, developer, apps) and hardware (CPU, chipset, motherboard) ecosystem from scratch. But, there are benefits to building your own CPU architecture. China, for example, could design an ISA (or microarchicture) with silicon-level monitoring and censorship — and, of course, a ubiquitous, always-open backdoor that can be used by Chinese intelligence agencies. The Great Firewall of China is fairly easy to circumvent — but what if China built a DNS and IP address blacklist into the hardware itself?

Taking a leaf out of South Korea’s hardcore gaming scene, what if the Chinese government decided to implement a hardware-level 10pm curfew for video games? Or some code that automatically turns negative mentions of Hu Jintao (the Chinese president) into positives, and inserts a few honorifics at the same time. Or a latent botnet of hundreds of millions of computers that can be activated upon the commencement of World War III. Or, or, or…

Via The Verge

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Via Flexibility Envelope

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Mobot by Barobo.com

Soon you can get your hands on the Mobot modular robot for a very reasonable $270 a module (pre-orders available now). A number of connection plates and attachments will also be available, and I guess you can 3D print your own stuff.

Mobot by Barobo.com

I like the gripper that is powered and controlled by the rotating faceplate. I am sure the same concept can be used to 3D print some cool things in the future. A connector would be an awesome thing and definitely worth a price of some sort.

In general, it seems to be a very competent modular robotics system. It uses a snap together connector, making it simple and fast to use, but maybe not as strong as a system that screws together.

There is a Graphical User Interface RobotController, and you can program it with the C/C++ interpreter Ch so everyone from beginner to hard core hacker should be able to do some really cool stuff.

More info on Barobo.com

Via Slash Gear

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LG Display has launched a new, 6-inch flexible epaper display that the company expects to show up in bendable products by the beginning of next month. The panel, a 1024 x 768 monochrome sheet, can be bent up to 40-degrees without breaking; in addition, because LG Display has used a flexible plastic substrate rather than the more traditional glass, it’s less than half the weight of a traditional epaper panel.

That means lighter gadgets that are actually more durable since the panels should be more resilient to drops or bumps. They can also be thinner, too: the plastic panel is a third slimmer than glass equivalents, at just 0.7mm thick.

LG Display says it can drop its new screen from 1.5m – the average height a device is held when it’s being used for reading, apparently – without any resulting damage. The company also hit the screen with a plastic hammer, leaving no scratches or breaks, ETNews reports.

LG isn’t the only company to be working on flexible screens this year. Samsung has already confirmed that it is looking at launching devices using flexible AMOLED panels in 2012, though it’s unclear whether the screens will actually fold or bend, or simply be used to wrap around smartphones for new types of UI.

The first products using the LG Display flexible panel are on track for a release in the European market in early April, the company claims. No word on what vendors will be offering them, nor how pricing will compare to traditional glass-substrate epaper.