Archive for December, 2009

VoiceThread – Group conversations around images, documents, and videos

December 12th, 2009
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Very likely VoiceThread is one of the best Web 2.0 tools for classroom use to come around in awhile. Very powerful and embeddable just about everywhere. Check out this short explanation and try one yourself. Family reunion? Old family pic you wanna post and encourage some comments from others? Too much fun.

But can it improve learning? Certainly fits the constructivist paradigm. How about a self reflection on a themed unit? Or a review of best practices for tech integration for diverse learners? Listening to others think aloud can boost our own critical thinking skills.

Powerful tool with lots of potential. Worth the time and effort to become skilled therein, don’t you agree?

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10 Ways Social Media Will Change In 2010

December 11th, 2009
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The forces at play here are intriguing, no? Social web is a platform and attitude behind which is a full spectrum of philosophies about what should take center-stage.

Is there an inherent tug-o-war between those wanting to exploit and those merely wishing to connect? Will the psychographic experts hound us and chase us down until we are caught by the enterprising enterprises??

Is the social web the new platform for serving cleverly disguised spam? Mmm… mashups and gravy! My favorite ;-)

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See these posters of Web 2.0 apps designed as if created in the 1970s. Cool learning idea…

December 10th, 2009
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web2.0 retro covers

My favorite is the Linkedin poster. Just consider the message there. Enemies with something in common? Not far off when you consider linkedin is used for job hunting via networks of people with whom you share common interests and goals…. competitors perhaps?

These posters are a good example of a classroom project that evokes higher order critical thinking. Putting present ideas into a new historical context (often this is being done by transferring historical ideas into modern contexts). Clever and enlightening. Are you a teacher? What possibilities do you see?

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Info-savvy • Media-fluent • Tech-tuned Updates: High Tech trends for classrooms in 2010

December 9th, 2009
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The major shifts affecting learning and teaching today and in the near future are outlined below

… regarding interactivity, information deluge management, mashups, real-time web, and multidimensional inputs.

Teachers can prepare but they need to take quick action.

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Real-Time Search — BackType #etc647 #etcnau follow trends of interest

December 9th, 2009
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See what reputable people are saying about topics that interest you — in real-time

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Nebul.us Shows Activity on the Web 4 private surveillance. Share. View others’ activity n real-time #etcnau

December 9th, 2009
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Still in private beta but worth watching the youtube explanation to understand new trends in mashup api’s and how data may be manipulated for future research.

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RT@mashable: Live Video Streaming Comes the iPhone, Courtesy of Ustream. Here’s link… #etcnau

December 9th, 2009
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Yes, it happened: Live video streaming has come to the iPhone courtesy of Ustream.

In a move that many suspected would never happen — surely the carriers would loathe the increased data usage resulting from such apps — Apple has approved the Ustream Live Broadcaster application, bringing live streaming video straight from the iPhone to the uStream Web site and any embedded players posted around the Web.

The app works on 3G and Wi-Fi connections, supports yes/no polling of viewers, displays chatroom messages, serves up a viewer count, can transmit your location via GPS and allows you to adjust the resolution. Oh, and did we mention it’s absolutely free?

Suffice to say, this looks to be a killer app, and it’s worth giving a spin if you’d like to post live video from your iPhone. It’s available in the iTunes store here.

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@billparker: At Stanford U., nanotubes + ink + paper = instant battery #etc647 future energy storage

December 9th, 2009
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At Stanford, nanotubes + ink + paper = instant battery

Dip an ordinary piece of paper into ink infused with carbon nanotubes and silver nanowires, and it turns into a battery or supercapacitor. Crumple the piece of paper, and it still works. Stanford researcher Yi Cui sees many uses for this new way of storing electricity.

Jack Hubbard

Post doctoral students in the lab of Prof. Yi Cui, Materials Science and Engineering, light up a diode from a battery made from treated paper, similar to what you would find in a copy machine. The paper batteries are treated with a nanotube ink, baked and folded into electrical generating sources like the one wrapped in foil seen here.

BY JANELLE WEAVER

Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.

Simply coating a sheet of paper with ink made of carbon nanotubes and silver nanowires makes a highly conductive storage device, said Yi Cui, assistant professor of materials science and engineering.

“Society really needs a low-cost, high-performance energy storage device, such as batteries and simple supercapacitors,” he said.

Like batteries, capacitors hold an electric charge, but for a shorter period of time. However, capacitors can store and discharge electricity much more rapidly than a battery.

Cui’s work is reported in the paper “Highly Conductive Paper for Energy Storage Devices,” published online this week in the Proceedings of the National Academy of Sciences.

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Forget keyboarding skills in the classroom. Here’s why…

December 8th, 2009
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According to KurzweilAI.net reporting on a Mayo Clinic research discovery: Brain waves can be used to type alphanumerical characters on a computer screen by merely focusing on a letter, with near 100 percent accuracy, Mayo Clinic and University of North Florida researchers have found. They used electrocorticography (ECoG), in which electrodes are placed directly on the surface of the brain in patients to record electrical activity produced by the firing of neurons.

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Single-atom transistor discovered bringing Qubit quantum computing closer #etc647

December 8th, 2009
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Single-atom transistor discovered

via tkk.fi

According to KurzweilAI.net: A working transistor whose active region comprises only a single phosphorus atom in silicon has been built by researchers from Helsinki University of Technology, University of New South Wales, and University of Melbourne.

The device uses sequential tunneling of single electrons between the phosphorus atom and the source and drain leads of the transistor. The tunneling can be suppressed or allowed by controlling the voltage on a nearby metal electrode with a width of a few tens of nanometers.

The researchers plan to use the spin degree of freedom of an electron of the phosphorus donor as a quantum bit (qubit). They were able to observe spin up and down states for a single phosphorus donor in a magnetic field for the first time–a crucial step towards the control of these states in realizing a qubit.

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