[Image from Futesaba]
Earlier this week in Lilongwe, Malawi, some enterprising fellows loaded up a truck with rebar. Unfortunately, they did not properly the weight bearing capabilities of the roof of the lorry cab. They could have benefited from a bit of
Failure Mode and Effects Analysis or FMEA after the mishap. There are important to understand forces at play here, tension and compression are the two that seem to be most relevant
[Image from Futesaba]
In loading the truck, they likely saw that putting the rebar flat on the bed would make it hang off the rear, bouncing with every bump and pothole. In order to make the bars less floppy, they bridged it between the bed and the cab. This could have worked out fine if they had a more stable structure at the cab end, designed to carry the heavy load of the bar. Here in the states, you see trucks with a back rack to facilitate just this kind of loading.
How do you carry incredibly heavy and awkward loads on your vehicle? Africa and the developing world do not have a corner on the market of stupid transportation tricks. It seems that at least a couple times a month I see a vehicle being driven down the road with either 1. the driver holding a piece of plywood on the roof by hand or 2. some crazy thing hanging way out of the vehicle or 3. a mattress on the roof of a car with air bulging up the front of the bedding.
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[Photo from Godisa]
Approximately 10% of the world population has a disabling hearing impairment, and 80% of them live in developing countries. The most expensive part of a hearing aid is the battery, which needs to be continually replaced. The Solar Aid solar-powered hearing-aid battery recharger, developed in Botswana, helps those with hearing disabilities afford to continue in school and participate in economy activity. More than 7,000 units are in use in South America, Central America, Africa, and Asia. And because batteries are generally expensive everywhere, Godisa intends to make this affordable technology widely available not just in the developing countries but also in the United States and Europe.
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I kept my Bridge playset for all these years. It sat in my Toronto storage locker for a decade, and then got shipped to London, where it now resides, along with my action-figures, in my office. And it still has the magic.
And now: the toy has been reissued, along with all the original action figures, including the two-tone aliens and the lizard dudes. The crew have the tiny blue phasers and the same dead eyes and the miniatures plastic Blundstones from the future. And I just saw the set, in person, in a comics shop, and it still has the magic.

1982 Datsun Voice Warning Box Used Tiny Phonograph Record, Just Like Moon Base Robots
(Thanks, Murilee!)

Natalie from CRAFT sez: Diana Eng is hosting a Fashion Hacking: Open Working Studio event on May 10th (tomorrow!) at the NYC Resistor Hackspace in Brooklyn (397 Bridge Street, Floor 5).
Diana writes:
I will be bringing a bit of Project Runway to my hacker group, NYC Resistor on May 10th when we host Fashion Hacking: Open Working Studio. Come and hack fashion with us. BYOC (bring your own clothes) and we'll have the tailoring tools, sewing machines, conductive thread, LED's, soldering irons, and the Laser Cutter to help you hack clothes into fashionable technology. Fashion designers and hardware hackers will be on hand to help you.Read more | Permalink | Comments | Read more articles in Announcements | Digg this!
This is an open working studio which means that you are free to circulate, work on your own project and look at other projects. Come to session 1, come to session 2, come to both sessions.Session 1, 1-3 pm, $20
Session 2, 3-5 pm, $20
Buy tickets: http://fashionhacking.eventbrite.com/
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Nelson wrote a book called Computer Lib/Dream Machines, in the 1970s, in which he chronicled, in a very bloglike fashion (long before blogs existed of course) the path that computers took to become the ideal tools for thinking and collaboration. This was a very radical idea at the time, I know because I was talking to people about the same concepts, and getting told that computers are not creative tools, by people who supposedly knew better.
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"25 Microchips That Shook The World"If it weren't for the TMC0281, E.T. would've never been able to "phone home." That's because the TMC0281, the first single-chip speech synthesizer, was the heart (or should we say the mouth?) of Texas Instruments' Speak & Spell learning toy. In the Steven Spielberg movie, the flat-headed alien uses it to build his interplanetary communicator. (For the record, E.T. also uses a coat hanger, a coffee can, and a circular saw.)
The TMC0281 conveyed voice using a technique called linear predictive coding; the sound came out as a combination of buzzing, hissing, and popping. It was a surprising solution for something deemed "impossible to do in an integrated circuit," says Gene A. Frantz, one of the four engineers who designed the toy and is still at TI. Variants of the chip were used in Atari arcade games and Chrysler's K-cars. In 2001, TI sold its speech-synthesis chip line to Sensory, which discontinued it in late 2007. But if you ever need to place a long, very-long-distance phone call, you can find Speak & Spell units in excellent condition on eBay for about US $50.
"Woman hunter kills elephant with bow and arrow" (Thanks, Kirsten Anderson!)The huntswoman wrote her own blog about her trip to Zimbabwe where she found the elephant in 2007.
She describes leaving the animal overnight lying on its side before returning to check it was actually dead the next day.
On the hunting website 'Hunts of a Lifetime' Hagerman wrote: "A man by the name of Larry, who is a videographer for Orion Multi Media, bet me I couldn't shoot a buffalo or elephant with a bow.
"He indicated only one or two women had completed the buffalo with a bow and no woman had ever taken an elephant with a bow. Of course, I couldn't turn down the challenge."
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[Photo from Pauric on Flickr]
MAKE Flickr pool member Pauric is treating himself to a nice birthday month of making.
Day 4 of my effort to make a lasting 'heirloom' object everyday for a month; a wooden case for my keyboard to go with the design desk projectFor one month, starting on my birthday, I will make something of lasting value everyday.
One of his projects is another run at the cablebone excess wire organizer, featured by Phillip a few years ago.
By tagging his photos for the project, it makes the work more accessible to the rest of us. If we want to do a similar project, making an heirloom object every day for a week or a month or a year, we can join our photos with his by adopting his tag makeaday. When we use tags on our work, it helps us to create a more effective search system. Other people can find our work more easily, and we can use it for ourselves to find particular photos, videos, links or posts. If you have a Flickr account, you can check out your tag cloud and see what you are into. You can also look at the MAKE Flickr pool's tag cloud as well to see what all of us are into.
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Meet CCRMA, a group of musical makers who stretch the sonic boundaries by turning personal computers into an electronic symphony. In the Workshop, John Park hacks a Wii controller and turns it into a personal flight recorder that can measure the G forces of roller coasters and other high-speed activities. In the Toolbox segment, William Gurstelle demonstrates the slick, back-cutting action of a super-sharp Japanese saw. The Maker Channel features a tesla coil-powered guitar amp, an RFID reader implanted in a human hand, and LED fan sign to bring to baseball games, and a solar powered bicycle gondola.
Get the m4v, subscribe in iTunes, or what in HD on Blip.
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Aaron ALAI's interactive sound piece, titled Stochasticity, explores the contrasrt of imprecise human behavior against rigid techological systems - and it looks like fun too.
When someone uses my art piece they are directly interacting with a very precise electronic tool. It produces musical tones based on the amount of resistance sensed in trails of water. The resistance changes unpredictably, and thus this is where the variability in the system arises from. The water evaporates, the user will flex their muscles, their hearts will pump blood at varying rates, and the conductivity of their skin will change. All of these variables change the placement of the notes in the water and make the system unreliable. I found it interesting that even though imperfect animals such as ourselves are plagued with randomness, we are capable of producing reliable highly precise tools that we can indirectly interact with.More info available on Aaron's site.
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[Image from Howtopedia]
The Treadle Pump design is very simple and effective at helping people to bring water to their crops.
Treadle Pump is a foot operated water lifting device that can irrigate small plots of land of small holders in regions that have higher water table (not deeper than 25 feet) A low cost system , simple in design and easily manageable it appropriately answers the irrigation need for the small farmers .with an internal rate of return of 100% and a benefit cost ratio of 5,treadle pump is an ideal investment for small land holders whose savings are as small as $12 to $15.
Media literacy is the process of accessing, analyzing, evaluating and creating messages in a wide variety of media modes, genres and forms. It uses an inquiry-based instructional model that encourages people to ask questions about what they watch, see, and read. (Source: Wikipedia)
Photo credit: Jason Rhode
Inside this Media Literacy Digest:
Should Computer Scientists Make Social-Networking Research a Higher Priority?: “Facebook and Wikipedia are just the beginning. The real power of social networks will be showcased by projects that unite far-flung participants to help track disease outbreaks, revolutionize neighborhood-watch programs, encourage energy conservation, and serve other civic and community goals…”.No doubt, social networks will grow in prominence. We’re still at the early stages of exploring how networks influence social relationships. Different types social relationships arise when geography is not a factor. Sites like Twitter can provide people with strong social connections to people they have not yet met face-to-face. I have better relationships with people in other countries, due to social technologies, than I do with some people who are located in the same building as I am. My concern with the growth of social networks relates to how they are incorporated into education. Social networks are imported - as are many technologies and related concepts - from outside fields. We are, sadly, not leading in research on learning as a networked phenomenon. Our language and concepts are imported from math, physics, and sociology. That in itself is not bad. But to truly begin to utilize networks for learning, we need to ask questions that address needs in our field. How do learning networks differ from other networks? How does being connected influence how we develop our understanding of a subject? How can we utilize networks to improve quality of learning? How do social networks impact conceptual networks? and so on…
In early 2000’s, I was in a meeting with a group of senior academics, exploring knowledge management solutions for higher education (doesn’t that sound like fun?).
One individual - a VP I believe - stood up and confidently stated “content is the most valuable thing colleges have. It’s our strategic advantage”. At the time the statement felt wrong, but I wasn’t sure why. Since then, blogs, wikipedia, podcasts, open educational resources, and numerous other developments have shown that content - while valuable for learning - has limited economic value.
Encyclopedic Knowledge, Then vs. Now tracks Encarta and looks at how content as a value point has been eroded: “Early in the project’s history, a focus group of prospective customers was convened, and participants said they would happily pay $1,000 to $2,000 for a multimedia encyclopedia on CD-ROM.”
Ray Schroeder is an active blogger that I have followed for about eight years. He covers a range of technology, pedagogy, and other trends on his numerous blogs.
Last month, I started following a new blog by Ray: New Realities in Higher Education.
The site is devoted to articles / news related to current challenges in higher education - particularly on economic impact. It’s a depressing read at times - consider proposed budget cuts in Florida - but it may cause administrators to recognize we are entering a new era where different rules apply.
It’s time for higher education to make substantial changes.
On his Half an Hour blog, Stephen Downes explores new technology and informal learning (in a paper for an upcoming conference in Portugal).
He makes a statement that is important for instructional designers to consider: “Learning networks capture an essential element in learning today, the simple fact that we don’t know what we want to teach.”The difficulty, of course, is that much of our current education model embodies the opposite view. Through curriculum boards, advisory committees, and government initiated programs, education is cast as a method to teach what we know to be important. What happens when we face complex problems that do not yet have an answer? We don’t have to look very far down the corridors of higher education. The classroom is a model that communicates what is known; the lab, in contrast, is a model that explores what is not yet known. Learning in complex environments (or where existing knowledge is applied in new contexts) requires the educational enterprise to adopt exploratory approaches. From the classroom to the lab…
To learn more about George Siemens and to access extensive information and resources on elearning check out www.elearnspace.org. Explore also George Siemens connectivism site for resources on the changing nature of learning and check out his new book "Knowing Knowledge".
Tinkerlog posted great instructions on how to create your own arcade controller and set it up with your favorite ROM. For all you emulation lovers who need that extra level of finesse, this will work with USB and MAME. Tinkerlog writes:
HID stands for Human Interface Device class. Common devices of this class are keyboards, mice and joysticks. The great thing, that this interface brings in, is, the devices don't need a specific device driver. If they behave according to the USB HID spec, then they are automatically recognized by all OSs. Every device sends a report, in which it states, which kind of device it is and how it wants to report its data.Read more | Permalink | Comments | Read more articles in Gaming | Digg this!
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Ranjit Bhatnagar and Nick Yulman are working on this sound sculpture for the Coney Island Museum; I think it's coming along swimmingly!
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What we have now is a mixed economy for expression in which some expression is produced under a patronage model (foundation grants, universities), some expression is produced under the open source model (Linux, blogs), and some expression is produced under a profit/incentive model of copyright.And we see it when David Simon goes to Congress and says:
It costs money to do the finest kind of journalism. And how anyone can believe that the industry can fund that kind of expense by giving its product away online to aggregators and bloggers is a source of endless fascination to me. A freshman marketing major at any community college can tell you that if you don't have a product for which you can charge people, you don't actually have a product.Both of those statements are based on the implicit assumption that "free" means "non-profit" or "not a business." Yet, nothing is further from the truth. Free has always been a part of many business models, and when most supporters of "free" are talking about isn't that content creation and journalism go to an "all amateur/all non-profit" model. No one is saying that at all. We're saying that they learn to embrace other business models that rely on copyright as a kind of crutch.
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I just added a new feature to 100twt.com tonight, with the help of Daniel and Jason at Disqus: You can now comment on the tweets of people in the Top 100. That's just the first toe-dip into commenting on tweets in general, a starting point.
Alan Parekh, of HackedGadgets, writes
Daniel Eindhoven sent in his latest creation, this is one killer looking coil gun!"Fully semi-automatic, up to 14 shots.
Capable of delivering over 18J kinetic energy, and speeds up to 110km/h! (42 gram projectiles). It's a single stage gun, using a 8800uF(4×2200) capacitor bank with max 400v (704J). Max shot efficiency is 2.8% but reaches almost 4% at lower voltages.Charge time for 300v (12J kinetic energy 396J capacitor bank) is 8 seconds for the mains connection,
and when using the internal batteries about 90 seconds. It also has a Digital voltage display.Coil overheat after 14 shots at 300v.
Total weight: 5 kilogram.
Total spend: ~~ 100 Euro
Construction time: ~~40 Hrs"
[via HackedGadgets]
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Check out this detailed R2D2 reproduction. Using the accelerometer or OSC slider control on the iPhone makes this R2 unit's dome whirl back and forth. There are also buttons that control banks of sounds for different moods. Eventually more controls will make it over to the iPhone. Right now it's taking its first steps forward.
Astromech R2D2 [via ApplePhoneHacks]
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