Saturday, July 6, 2013

Solar Plane: Making clean tech sexy, adventurous

WASHINGTON (AP) ? In noisy, energetic New York City, the pilots of a spindly plane that looks more toy than jet hope to grab attention in a surprising way: By being silent and consuming little energy.

This revolutionary solar-powered plane is about to end a slow and symbolic journey across America by quietly buzzing the Statue of Liberty and landing in a city whose buildings often obscure the power-giving sun. The plane's top speed of 45 mph is so pokey, it would earn honks on the New Jersey Turnpike.

The plane is called Solar Impulse. And it leaves from Washington on a commuter-like hop planned for Saturday, depending on the weather. It will take hours for the journey and offers none of the most basic comforts of flying.

But that's OK. The aircraft's creators say its purpose really has little to do with flying.

They view themselves as green pioneers ? promoting lighter materials, solar-powered batteries, and conservation as sexy and adventurous. Theirs is the high-flying equivalent of the Tesla electric sports car. They want people to feel a thrill while saving the planet. Think Charles Lindbergh meets Rachel Carson.

And if there's one person who knows about adventure and what it means to Earth, it's Bertrand Piccard.

He's one of the two pilots who take turns flying Solar Impulse. His grandfather was the first man to see the curve of the Earth as a pioneering high-altitude balloon flier more than 80 years ago. His father more than half a century ago first took a submarine to the deepest and most inaccessible ocean trench on Earth.

And now in the 21st Century outside the Smithsonian's Air and Space Museum annex not too far from a retired space shuttle, Piccard says there's no truly new place on Earth for explorers to pioneer. At 55, he's tried.

He already was the first person to fly around the world non-stop in a balloon, but that wasn't really enough. So Piccard found a way to explore by looking inward and acting globally.

"It's an exploration of new ways of thinking," said Piccard, who is also a psychiatrist. "It's important to understand that pioneering is not only what you do. It's how you think. It's a state of mind more than action."

For him, there was no better cause than clean technology.

"After a conquest of the planet, the 21st Century should be about improving the quality of life," Piccard said. And the lightweight beanpole that's called Solar Impulse "is something spectacular in order to capture the attention of the people. If you make a solar bicycle to drive, nobody would care. If you make a solar plane, everybody cares. Everybody wants to see it.'"

Europe saw it first with a test flight from Switzerland and Spain to Morocco last year. This year's U.S. flight is another trial run that's really preparation for a 2015 around-the-world trip with an upgraded version of the plane. Solar Impulse has been to San Francisco, Phoenix, Dallas, St. Louis, Cincinnati and Washington. All that's left is New York's JFK Airport and Piccard talked about having to wait his turn to land with all the big jets.

"We're flying the most extraordinary airplane in the world," Piccard said.

Although it's promoted as solar-powered, what really pushes the envelope with this plane is its miserly energy efficiency, said Solar Impulse CEO Andre Borschberg, the plane's other pilot.

Parts of its wings are three times lighter than paper. Its one-person cockpit is beyond tiny. Borschberg lowers himself gingerly into it for a television camera, grimaces, and practically wears the plane it is so snug on him.

Most of the 11,000 solar cells are on the super-long wings that seem to stretch as far as a jumbo jet's. It weighs about the size of a small car, and soars at 30,000 feet with what is essentially the power of a small motorized scooter. When it landed at Dulles International Airport in suburban Washington after midnight on June 15, its wings were lit with 16 LED lights that used less power than two 100-watt bulbs.

"We can use much less energy than we use today without the sacrifice," Borschberg said. "And that's really important."

People won't sacrifice to save energy or the planet, but if they are smart they don't have to, Borschberg said. That's why he and Piccard pointedly talk about "clean technologies" not "green technologies." They think "green" has the image of sacrifice.

The only sacrifice with the plane is staying up in the air alone for 20 hours in such a small space.

And even then, the two pilots don't call it a sacrifice. Borschberg said after a while it feels homey and enveloping and it's hard to get out of the cocoon. Sitting for eight hours in an economy class seat on a commercial airplane is cramped; doing what you love by sitting three times longer in this plane isn't, Piccard added.

The flights are long because here's another thing about Solar Impulse: It's slow. Its cruising speed of just under 45 mph would get them honked at on an highway.

So that has meant a lot of 4 a.m. take-offs in the dark and landings well after midnight. But Borschberg, who will pilot the last leg from Washington to New York, is hoping for a daylight approach to New York City so he can get a photo opportunity with the Statue of Liberty.

Borschberg and Piccard both say this is not about clean-energy planes for the future. What they're doing is more likely to improve energy efficiency on the ground, in cars and homes, agrees U.S. Energy Secretary Ernest Moniz who met with the pair to talk up future energy a couple days after they landed at Dulles.

Still, questions of practicality come up.

"It's clearly a stunt," said John Reilly, co-director of MIT's Joint Program on the Science and Policy of Global Change. "And it's clearly an attention-grabbing stunt. The idea that you could fly an airplane powered by the sun is kind of hard to believe. So doing it is an impressive stunt, I suppose."

But these types of gimmicks do pay off at times, Reilly said.

It will pay off more than promoting solar and other renewable energy technologies as economic stimulus, which is what happened four years ago, said University of Colorado science policy professor Roger Pielke Jr. He compared it to giant prizes that encourage private companies to go into space or build robot-driven cars, which are proving successful.

"I don't think it's just a stunt," Pielke said. "The idea is that you're pushing boundaries and you're putting on shows for people and achieving milestones."

This, Pielke said, is "an essential part of technological innovation. It gives people an opportunity to attempt what previously was thought of as impossible."

Source: http://news.yahoo.com/solar-plane-making-clean-tech-sexy-adventurous-131850114.html

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Building a Liver From Stem Cells

Copyright ? 2013 NPR. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required.

IRA FLATOW, HOST:

This is SCIENCE FRIDAY. I'm Ira Flatow. Up now, one more step toward the holy grail in stem cell research: growing transplantable human organs in the laboratory. Reporting in the Journal Nature, researchers say they have created, in the lab, the first steps toward a functional human liver, and they did this by using stem cells. The scientists created what they called liver buds in the lab, transplanted those into mice, where they say the buds matured into functioning tissue resembling the adult liver. Joining me now to talk more, to comment and analyze the work is Anthony Atala. He's Director of the Wake Forest Institute for Regenerative Medicine. He's not one of the researchers who did the work. Welcome back to SCIENCE FRIDAY, Dr. Atala.

ANTHONY ATALA: Good to be with you, Ira.

FLATOW: Tell us a bit more about what the researchers did. What was the - what's the big focus here, the big picture in what they were trying to do?

ATALA: You know, the big picture is that they're using very early cells that can actually differentiate. They can go into different directions in the body, form different types of tissues. And these cells, they show, can actually form these miniature liver structures. You know, it's called a liver bud, and the analogy is that, you know, just like a rose bud give rise to a rose, a liver bud would give rise to a more mature liver tissue. And that's what they did. They actually created these structures in the laboratory.

FLATOW: And were they able to then - are they mature enough, and is the research far enough along that they could then make a real liver? You know, out of those buds.

ATALA: Yeah, well it's early stage at this point, because the structures that were created were just about a fifth of an inch in size. But the hope, of course, is that by using these technologies - these technologies could be advanced in the future to create larger structures that could be used in patients.

FLATOW: And this is just sort of the tip of a large, whole-scale research effort of using different organs, right? To develop all kinds of organs that do things.

ATALA: That's exactly right. I think the field has now seen many different advances in different areas, really tackling all types of tissues and organs, and, you know, of course from the least complex to the most complex. They are different types of organs that get targeted. And there's research ongoing now in pretty much all those tissue types.

FLATOW: I remember we talked about a windpipe that was created and given to a child. Right, that's been shown.

ATALA: That's right.

FLATOW: What else is on our score card here, that are successes and possible successes?

ATALA: Yeah, well, you know, we actually look at this from a perspective of the least complex organs to the most complex, like the least complex being the flat structure, such as skin...

FLATOW: Right.

ATALA: ...you know, that have mostly one cell type. You have tubular structures, like blood vessels, slightly more complex. Then you have hollow, non-tubular organs, like the stomach or the bladder, which are a higher degree of complexity, and finally, the most complex being the solid organs. And up to this point, you know, there are now examples of the very first three types of organs, in terms of flat tubular and hollow non-tubular that have already been placed in patients. And, of course, the holy grail remains the solid organs.

FLATOW: Are there any experiments ready for the solid - big solid organs?

ATALA: Yeah. For the solid organs, basically, there are many different strategies that are being used to really try to attain that. And there's several trials now that are actually targeting solid organs - for example, using cell therapy. Right now, there are technologies where cells are being injected into patients for heart disease. And that's now in progress. And soon, there will also be some trials looking at kidney cells that will be injected into patients with kidney failure. So the technology is definitely advancing for solid organs. And I think it'll be interesting to see what happens over the next few years with the outcomes.

FLATOW: But the experiment that we're talking about with the liver, this was not injecting cells into humans. This was trying to create the beginnings of a real liver in a mouse, in a laboratory.

ATALA: That's correct. This is very early work, of course. But the interesting thing about this work is that it does show that these structures can be really created in a culture dish three-dimensionally by using early stem cells. And the ability to do that really is very interesting, because it allows us to recapitulate how the body develops at an early stage. It allows us to reproduce in a culture dish what the body does in a human, as the human is developing in the womb.

These are very early stage structures that develop usually in the first few weeks of life, at around five or six weeks of life. And that actually give rise to the organ in a human. And now what this work shows is that can also be done in a tissue culture plate.

FLATOW: So is it used as a means of just studying how it develops? Or is the idea to actually create a functioning liver that can be transplanted later?

ATALA: I think both. I think that's the usefulness of this work, is that first it'll allow us to really study how these liver structures do develop in humans over time, and allows us to really look at some of the things that we can do to make that process better, and if there's a disease present. And it also can be used to help us to come up with new strategies that will have us treat patients in the future - in the distant future, of course. We're looking at least, you know, 10 years down the line for any of these technologies to hit patients.

FLATOW: I find it fascinating that a human organ like the liver can actually grow in a mouse.

ATALA: Yeah. You know, it's interesting, because, in fact, the liver regenerates very fast in the human. It's an interesting dichotomy, in fact. Because what happens is if a patient comes into the emergency room and they had a car accident, let's say, and they lost half their liver through the injury and the surgeon just goes in there and resets that injured portion of the liver, if you bring that patient back six months later and you do an x-ray, the liver has fully re-grown. So the liver really does have this great potential to regenerate. The problem, of course, happens when you have a disease in the liver, and that prevents the regeneration from occurring. So having strategies that allow you to help the regeneration process when there's a problem is a good thing.

FLATOW: Is - did these buds actually function in the mice? Were they doing their liver thing?

ATALA: Well, for the most part. They were actually secreting things that the livers secret. They were processing drugs that the liver is supposed to do. But they were not hooking up to the bile, for example, which is part of the liver, which is, you know, a structure that's present within the liver. Or it did not have a rejection response. So these were very immature structures. And - but the strength is that by having these cells created, creating more complex structures, you can actually use these more complex structures for treatment in the future. Instead of just using single-cell suspension - mixtures like what's being today for the heart, for example - you could foresee, in the future, injecting more developed structures into patients.

FLATOW: Isn't there always the chance that if you're using stem cells, that the stem cells might turn into something that you don't want to have, perhaps like a tumor?

ATALA: Well, that's exactly the challenge that is most relevant in this work. And that is that the cells used are what are called induced pluripotent stem cells, or IPS cells, which are basically cells that you get from skin from a patient. We can get those cells from any adult patient. And you can basically get these cells from the skin. And then you're using methods to revert that cell back to a very early stage. But the problem is that when you do that, you're also changing the ability of these cells to be stable. And the cells do become unstable over time. They have the potential to become unstable and form tumors.

FLATOW: With so much - with the aging population and so many people suffering from arthritis and sports injuries, how easy would it be to regenerate cartilage? It seems like that would be one, a one-layer kind of thing, using stem cells.

ATALA: Yes, exactly. Well, cartilage is being used now in patients at limited indications. There are several clinical trials out there now which are looking at cartilage. And right now, you can go to your physician and request treatment with cartilage cells for your knee, as long as there's no arthritis involved. So these technologies are currently available to patients.

FLATOW: All right, I'm headed out the door to my knee doctor. My tennis knee is hurting. Thank you very much, Dr. Atala, for joining us.

ATALA: My pleasure of being with you today.

FLATOW: Have a good weekend. Dr. Anthony Atala is director of the Wake Forest Institute for Regenerative Medicine, and he was joining us from Winston Salem, North Carolina.

Copyright ? 2013 NPR. All rights reserved. No quotes from the materials contained herein may be used in any media without attribution to NPR. This transcript is provided for personal, noncommercial use only, pursuant to our Terms of Use. Any other use requires NPR's prior permission. Visit our permissions page for further information.

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Source: http://www.npr.org/2013/07/05/199025495/building-a-liver-from-stem-cells?ft=1&f=1007

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Friday, July 5, 2013

Getting Set To Take Over the Tech World! Register Today for the W ...

The Women?s Technology Empowerment Centre ? W.TEC is now accepting applications for its 6th Girls Technology Camp, which is scheduled to take place in August.? The W.TEC Girls Technology Camp is a technology education and mentoring programme designed to inspire girls to become more confident in creating digital content and developing technology. For the camp duration, the girls will participate in technology workshops to design graphics, make film, build applications and games. They will also participate in career talk sessions, team-building exercises and excursions.

The camp is open to secondary school students (JSS 2 ? SSS 2) who are no younger than 11 years old. This residential, educational camp will take place from August 11th-24th, 2013 and is targeted at girls in secondary schools who are comfortable using the computer and who would like to take their interest in computers & technology to the next level. It is a two-week program with practical technology workshops including: Introduction to Programming, Building Applications, Introduction To Telecoms, Video Filming and Production, Building Computer Games, Career Talks, Excursions to Technology Companies.

On successful completion of the camp, the girls will be invited to join W.TEC?s Technology Club for Girls, where they will be able to participate in year-long workshops to build-up their technology skills from the camp. They will also have the opportunity to win a laptop.

W.TEC is a Nigerian non-governmental organization working to encourage Nigerian girls and women to use information and communication technology (ICT) to empower themselves socially and economically. This is done through technology literacy training, technology-based projects, mentoring, work placement and research. W.TEC works in partnership with local and international NGOs, educational and research organizations.

The camp will take place from the 11th to the 24th of August 2013.

To find out more about the camp and to register on behalf of your daughter or ward, visit www.w-teconline.org/programmes/girls, email info@w-teconline.org or call 08191150387, 08096987541, 018509782, and 08171027807.

Tags: Girls in Technology, W-TEC, W.Tech summer Camp, Women?s Technology Empowerment Centre

Source: http://www.bellanaija.com/2013/07/05/getting-set-to-take-over-the-tech-world-register-today-for-the-w-tec-girls-technology-camp-11-24-august-2013/

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?Made In America?

we-can-do-itThe five day work week. Chevrolet. Grand Funk Railroad. Steel plants on the shores of Lake Michigan. This is America. There is a rebirth happening right now. It's happening all over the country. Pockets of makers here. A consumer electronics company there. A startup accelerator in beautiful Harbor Springs, Mich.. They're appearing all over this land. And it's all heavily advertised. "Made in America" is, sadly, in vogue right now. "Imported from Detroit", "This American buys American." All bumper sticker catch phrases fueling America's greatest innovation: capitalism.

Source: http://feedproxy.google.com/~r/Techcrunch/~3/rHUio8T6_sU/

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Thursday, July 4, 2013

Facebook stickers come to the web

Facebook stickers come to the web

Facebook brought stickers to its Android and iOS apps this spring, and they're reaching the web right as summer hits full stride. As in the mobile space, desktop users can now use critters, giant smileys and other over-the-top graphics in their private messages. A store is on hand for those who want to venture beyond Facebook's free catalog. Web stickers are available today -- if :) just won't cut it for your conversations, you'll now have a more expressive set of emoticons wherever you go.

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Source: Facebook

Source: http://www.engadget.com/2013/07/03/facebook-stickers-come-to-the-web/?utm_medium=feed&utm_source=Feed_Classic&utm_campaign=Engadget

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Programming is FUNdamental: A closer look at Code.org's star-studded computer science campaign

Codeorg's starstudded computer science campaign

"All these people who've made it big have their own variation of the same story, where they felt lucky to be exposed to computer programming at the right age, and it bloomed into something that changed their life," explains the organization's co-founder, Ali Partovi, seated in the conference room of one of the many successful startups he's helped along the way. The Iranian-born serial entrepreneur has played a role in an impressive list of companies, including the likes of Indiegogo, Zappos and Dropbox. Along with his twin brother, Hadi, he also co-founded music-sharing service iLike.

Unlike past offerings from the brothers, Code.org is a decidedly non-commercial entity, one aimed at making computer science and programming every bit as essential to early education as science or math. For the moment, the organization is assessing just how to go about changing the world. The site currently offers a number of resources for bootstrappers looking to get started in the world of coding. There are simple modules from Scratch, Codecademy, Khan Academy and others, which can help users tap into the buzz of coding their first rectangle, along with links to apps and online tutorials. The organization is also working to build a comprehensive database of schools offering computer science courses and soliciting coders interested in teaching.

Programming is FUNdamental A closer look at Codeorg's starstudded computer science campaign

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/L-pFwwQVLI8/

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Nokia announces the 207 and 208: 3G data and month-long standby for $68

Nokia announces the 207 and 208, calls them its 'most affordable 3G devices yet'

Smartphone sales may have surpassed featurephone sales earlier this year, but that's not stopping Nokia from releasing devices like the 207 and 208. Both feature a 2.4-inch QVGA screen, 3G (HSPDA, up to 7.2Mbps) connectivity, a stand-by time of over 30 days and a $68 price tag before taxes and subsidies. Where they differ is that the 207 has no camera (for security-conscious work places) and only comes in a single-SIM variant, while the 208 features a 1.3-megapixel camera and is also available in a dual-SIM flavor. Nokia wants to point out that these devices use microSIM cards, not traditional full size SIM cards, making them ideal as a second phone for when you want to "leave your smartphone at home." Meanwhile, if you're willing to sacrifice 3G, the 110 and 112 are even cheaper. Or, if you don't mind spending a little more, Firefox OS phones deserve a look too.

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Source: http://feeds.engadget.com/~r/weblogsinc/engadget/~3/X1bLs5PSXJM/

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