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Nanotechnology Making Inroads into Water Applications

When you get past the economic crisis, then the energy crisis, and then the Global Warming crisis, there is one rather large crisis that gets ignored: the water crisis.

Nanotechnology has been offering for some time solutions and promises of even greater capabilities in the future when it comes to addressing the issue of clean drinking water. Moving these technologies to industrial scale has remained largely elusive, but there appears to be an increasing amount of research in applying nanotechnology to water applications, which could start to show dividends.

In further evidence that there appears to be a critical mass of research in how nanotechnology can address the water purification issue, Philip Ball in an article for the New Scientist chronicles the history and latest developments of how carbon nanotubes are being used to filter out harmful ions from water, thereby making desalination more efficient.

According to the article, in further research it could be possible for the technology to lead to the capability of separating mixtures of hydrocarbon gases, filtering CO2 from a power plant chimney, or even extracting the gas directly from the air.

The latter bit should excite those environmentalists who are more alarmed at the plight of the polar due to global warming than they are at those who don't have access to clean drinking water.

NASA reporting presence of methane on Mars, reigniting talk of Martian life

Methane is one of the byproducts of life. Methane on Mars may be biological or geological. The methane was found alongside water vapor. This is a very interesting discovery and will reignite talk of life on Mars.

NASA made the announcement at a Washington D.C. press conference today at 2:00 p.m.Look for huge coverage in the news.

What NASA scientists have found are large plumes of methane. The gas was found in spectroscopic studies using large telescopes over seven years.

A cometary collision could have produced it, but no evidence of large collisions are seen. Geologic activity (volcanism) usually produces other gases, which are not seen. Biological organisms produce methane. NASA scientists are saying it is hard to say what is causing methane on Mars.

Methane on Mars may also make terraforming somewhat easier as methane is a greenhouse gas.

CES 2009: First Hardware Switch for Booting Multiple Operating Systems

This product gets my vote for most awesomely geeky gadget at CES:

For my personal use, I have no need for the device; one partitioned drive works fine for me. But I can see Ken's switch catching on, even if it's for niche applications. And he already has a product that solves his own problems. So far, he's self-financed the whole development himself, and he's still working on bringing down the manufacturing price. So what do you think? Would you find this device useful?

Steve Jobs Steps Down Temporarily as CEO of Apple

The iconic leader of Apple Inc. has decided to take a medical leave of absence until this summer. Late today, Steve Jobs informed his employees that he will temporarily step aside as Apple's chief executive officer because his well-publicized recent health issues are "more complex" than he originally expected.

In a companywide email note, Jobs wrote today:


I am sure all of you saw my letter last week sharing something very personal with the Apple community. Unfortunately, the curiosity over my personal health continues to be a distraction not only for me and my family, but everyone else at Apple as well. In addition, during the past week I have learned that my health-related issues are more complex than I originally thought.

In order to take myself out of the limelight and focus on my health, and to allow everyone at Apple to focus on delivering extraordinary products, I have decided to take a medical leave of absence until the end of June.

I have asked Tim Cook to be responsible for Apple's day to day operations, and I know he and the rest of the executive management team will do a great job. As CEO, I plan to remain involved in major strategic decisions while I am out. Our board of directors fully supports this plan.

I look forward to seeing all of you this summer.


Jobs, 53, announced last week prior to the firm's Macworld conference that health concerns would prevent him from delivering his annual keynote speech to the Mac faithful in San Francisco. At the time, he described his condition as a "hormone imbalance," which was under treatment. The announcement partially quelled rumors that Jobs' health was deteriorating dramatically, as evidenced by a noticeable weight loss in his physical appearance over the last year. The Apple co-founder has successfully fought off pancreatic cancer in the past.

Today's news caused shares of Apple to drop 8% (to US $78.40) in after-hours trading, according to an item from CNN/Money online.

Nanotechnology and Public Engagement: Is there a benefit?

Richard Jonesâ'' Soft Machines blog has a lengthy discussion--well worth reading in its entirety--on the impact of public engagement in scientific research, and in particular in the area of nanotechnology.

Andrew Maynard has written a reaction piece on Jonesâ'' work that provides some US context to Jones who was focused primarily on the UK experience.

I am afraid that I fall into the category that Jones describes as â''cynicalâ'' when it comes to the usefulness of public engagement, which seems often to be â''exercises that are intended, not to have a real influence on genuinely open decisions, but simply to add a gloss of legitimacy to decisions that have already been made.â''

But the real root of my concerns regarding public engagement is not that it is some ruse cooked up by the powers that be to appease the public, but that science may be governed by the ignorance of the mob. As Maynard describes it, â''The challenge is to develop and enact ways of achieving this that are socially responsive and tap into the â''wisdom of the crowdâ''â''rather than the â''madness of the mobâ''.â''

My cynicism was turned on its head when I discovered that the two scientists: Jones and Maynard, are strong proponents for the usefulness of public engagement, arguing that it actually may lead to better science.

Maynard sees that maybe with a new Obama administration poised to take office and powerful new networking tools public engagement may be able to beneficially influence science and technology decision-making processes. I just hope that the networking tools can help to overcome the deficit in the public understanding of science so we can get more of the â''wisdom of the crowdâ''.

CES 2009: Duck Hunt Without the Video Game Console


Here at Spectrum, weâ''ve covered our fair share of remote-controlled, flying toys. There was the rotary wing Bladestar featured in this yearâ''s gift guide, the indoor plane from 2007, and the Micro Mosquito palm-size helicopter from 2006. But with each toy, the basic experience is usually the sameâ''fly the vehicle around for a minute or two until it runs out of power.

At CES this year, however, the flying toy market got injected with a welcome dose of novelty (and nostalgia for the original Nintendo Entertainment System). Interactive Toy Concepts (the company behind the Micro Mosquito) had a representative in full hunting gear showing off their new Duck Hunter toy/game. After you hand-launch the lightweight, flapping, electronic fowl, it's time to pick up the included light gun and take aim. Each time you "hit" the duck, it will temporarily stutter. Land three shots during the 30 seconds of flight time, and the bird will drop like a stone.

Video of the duck in-flight after the jump:

The company is looking to sell the toy for about $30 when it hits stores in the spring. They're also developing a two-player version, where a second player takes control of the duck for evasive maneuvers. All we'll need then is a robotic, laughing dog to mock our poor marksmanship.

Nano News Aggregators Unintentionally Humorous

In order to keep up to date on nanotechnology news I use a variety of Internet tools to follow the latest developments in the world of nanotech. The most recent one I have started to acquaint myself with is Alltop.

Once I managed to get over the omission of the â''nanotechnologyâ'' entries made into this TechTalk blog, which are now nicely displayed here, I looked over the list of stories and web sources.

The one that really struck me was a blog called Nanonews, which describes itself as â''News about the newsâ''. But it really isnâ''t. Itâ''s all about Salvia Divinorum, and defending its lawful usage.

Why this subject would give itself a website title â''Nanonewsâ'' or why it would describe itself as â''News about the newsâ'', I have no idea. But what is more perplexing is how this rather odd blog managed to get on a list of web sources for the subject of nanotechnology.

Omission of IEEEâ''s Tech Talk aside, there are a number of other worthy blogs that cover the subject of nanotechnology, such as TNTLog and Nanobot--both of which represent blogs that have been around longer than most and actually have points of view as opposed to being merely press release stenographers.

But knowing something about the subject you are aggregating news items for does not seem to be a high priority. Rather tools for identifying the highest traffic websites that use the term "nano" has become the only way to define a source of information on nanotech.

CES 2009: And the CES congeniality crown goes to...Texas Instruments and Yahoo


The consumer electronics industry is not always a place where companies play nice together. Indeed, factions and standards battles are the norm.

But at the Consumer Electronics Show in Las Vegas last week, two companies seem to have recently made a lot of friends (or at least managed to have a presence in a lot of booths): Texas Instruments and Yahoo.

Pico projectors, tiny video projectors designed to be carried in a pocket or built into a cell phone, were clearly the hottest new product category at the consumer electronics show. They make it possible for a group of people to view images or movies stored on a personal device by projecting the image onto a wall or ceiling. Most stand-alone projectors cost something around $400. And, while there are several technologies that can power these devices, including liquid crystal on silicon (LCOS) from 3M and reflective interferometric modulation, a laser-based technology, from Qualcomm, it was Texas Instrumentsâ'' DLP projection technology that will be shipping in the most products this year (all the samples pictured above use TIâ''s DLP Pico chipset). DLP creates an image using an array of small mirrors illuminated by LEDs. So far, TI announced that DLP Pico will be built into products from Samsung, WowWee, Optoma, Acer, BenQ, Dell, and Toshiba.

Yahoo is also taking images from a small screen to a big screen, in a different sort of way. Many television manufacturers at CES showed televisions with built in Internet capabilities; convergence between the TV and the Internet, talked about for years, may finally be arriving. For the most part, these televisions donâ''t include standard web browsers, but more simple and dedicated Internet interfaces that are easy to control with a standard remote. And while a variety of Internet companies are built into TVs from one or two manufacturersâ''including Netflix, Youtube, Picasa, and Amazon Videoâ''Yahooâ''s Connected TV, which lets users access a widget library, was most ubiquitous, appearing in televisions from LG, Toshiba, Samsung and Sony.

CES 2009: Are they real? (I'm talking about 240 Hz LCDs, of course)

32S5100_med.jpgAre they real? Itâ''s the kind of question you expect to hear in Las Vegas, but not the question I thought Iâ''d be asking repeatedly as I checked out the latest LCD television technology at the Consumer Electronics Show (CES) in Las Vegas last week. The â''theyâ'' in question: the latest twist (ouch, bad pun) in LCD technology, the 240 Hz displays.

A little background. The digital television standard in the U.S. requires displays to put up a new image 60 times a second, or 60 Hz. That works just fine for technologies like cathode ray tube or plasma, in which a phosphor lights briefly whenever itâ''s called for in an image and then goes dark until needed again. Itâ''s not so good for LCD, because each pixel, once illuminated, stays on until the screen is rescanned with a new image; it doesnâ''t go dark in between scans. This doesnâ''t have any effect on still or slow-moving images, but for fast-moving images, the persistence of the pictures causes "motion blur". Motion blur can make pictures seem out of focus, or can make parts of an image seem to momentarily disappear. In sports, that disappearing part of the image is usually the fast moving ball, a real annoyance to fans.

LCD manufacturers figured out a few years ago that they could greatly reduce motion blur by increasing the rate at which new images are displayed on the screen to 120 Hz. Since theyâ''re only getting 60 images a second from the television transmission, they added processing power to the TV sets that generates additional frames by interpolating between existing frames. I looked at these 120 Hz sets at CES back in 2007 and was impressed by the difference, deciding this was one feature that would be worth paying extra for in my next television.

Of course, technology marches on, so it wasnâ''t a huge surprise to see announcements of 240 Hz LCD televisions at this Januaryâ''s CES. I found four such products on the show floor, but it turned out that just because a television is advertised at operating at 240 Hz, it might not be displaying 240 different images a second. LG and Toshiba are generating 120 images per second, but turning the LED backlighting on and off so each image appears and disappears twice, a virtual sort of 240 Hz. Sony and Samsung are interpolating three frames between each transmitted image, so generate 240 different frames per secondâ''real 240 Hz.

Is real 240 better than fake 240, and are any or all of the 240s better than the most recent generation of 120s? Iâ''d like to be able to give you a definitive answer, but the truth is, I just couldnâ''t tell. Each of the manufacturerâ''s lines were displayed at CES independently, so I had no chance of doing a side by side comparison, instead, I ran from booth to booth as fast as I could and back again, trying to hold the previous image quality in my mind. With this highly unscientific method, I couldn't detect a significant difference between virtual 240 and real 240.

And even in exhibits tuned by the individual manufacturers to present their 240 against 120 and 60 Hz models, demonstrations intended to show off the clarity of the 240, I had trouble identifying a significant difference between 240 and 120. I stood with other show attendees, squinting at the fast moving images racing across screens, getting slightly nauseous as I tried to figure out if the 240 was a bit more blurry than the 120. â''Look at the faces in the moving boat,â'' someone suggested. â''You can tell the faces are clearer.â'' Maybe. The only manufacturer that demonstrated an obvious difference between a 120 Hz and 240 Hz model was Samsung, and that difference seemed more due to a really blurry 120 Hz TV than any revolution in 240 Hz technology (the 120 Hz model was in a black box that obscured the brand information, so it may have been a very old model or a very cheap brand).

Pricing, on all of the 240 Hz displays introduced, was not announced, so itâ''s also not clear what the extra 120 Hz will cost, though fake 240 is likely to cost less than real 240. But, so far, Iâ''m not convinced either is worth any premium.


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