Biochemistry professor Judy Walls of the University of Missouri is working on ways to use sulfate-reducing bacteria to render radioactive metals harmless. This, she hopes, would provide a cheaper alternative to conventional cleanup:

The bacteria Wall is studying are bio-corrosives and can change the solubility of heavy metals. They can take uranium and convert it to uraninite, a nearly insoluble substance that will sink to the bottom of a lake or stream. Wall is looking into the bacteria's water cleansing ability and how long the changed material would remain inert.

Wall's research could also be beneficial to heavy metal pollution from storage tanks and industrial waste. The bacteria are already present in more than 7,000 heavy metal contaminated sites, but they live in a specific range of oxygen and temperature, making them difficult to control.

Link via Popular Science

(Image: Science Daily)

Photo: Resilient Technologies

Pneumatic tires take a lot of abuse in combat, which is why Resilient Technologies is trying to develop an airless tire. Because they can't be punctured, vehicles equipped with such tires can stay mobile after taking damage that would incapacitate others:

The Wisconsin design breakthrough, first developed by Resilient's in-house design and development team, takes a page from nature. "The goal was to reduce the variation in the stiffness of the tire, to make it transmit loads uniformly and become more homogenous," Osswald says. "And the best design, as nature gives it to us, is really the honeycomb."....

The patent-pending Resilient design relies on a precise pattern of six-sided cells that are arranged, like a honeycomb, in a way that best mimics the "ride feel" of pneumatic tires. The honeycomb geometry also does a great job of reducing noise levels and reducing heat generated during usage - two common problems with past applications.

Link via DVICE

Image:Kent Smith, Gizmodo

Gizmodo held a photoshop contest for video game peripherals that will probably never be developed. Above is the...uh, animal husbandry Nintendo Wii controller by Kent Smith, which took 3rd place. There are 42 reader-submitted images at the link.

Link via GearFuse

Or to be more precise, Dr. Tracy Alloway of the University of Stirling in Scotland says that in a study, Facebook users showed increased working memory, whereas Twitter users showed decreased working memory. She concluded that Facebook has more mentally intensive activities, but Twitter's communications are too brief to require substantial brain activity:

Dr. Alloway has developed a working memory training programme for slow-learning children aged 11 to 14 at a school in Durham, and she found out that Facebook did wonders for working memory, improving the kids’ IQ scores, while YouTube and Twitter’s steady stream of information was not healthy for working memory. Also, playing video games, especially those that involve planning and strategy, can also be beneficial.

Link via The Presurfer

Image: U.S. Department of Energy

Charles Q. Choi of Live Science writes that scientists working for NASA used a superconducting magnet that simulates some of the effects of gravity to lift a mouse into the air. The agency has been working on such technology in the hope of alleviating the bone decay that would affect astronauts in zero-gravity environments for prolonged periods of time:

Scientists working on behalf of NASA built a device to simulate variable levels of gravity. It consists of a superconducting magnet that generates a field powerful enough to levitate the water inside living animals, with a space inside warm enough at room temperature and large enough at 2.6 inches wide (6.6 cm) for tiny creatures to float comfortably in during experiments....

Repeated levitation tests showed the mice, even when not sedated, could quickly acclimate to levitation inside the cage. After three or four hours, the mice acted normally, including eating and drinking. The strong magnetic fields did not seem to have any negative impacts on the mice in the short term, and past studies have shown that rats did not suffer from adverse effects after 10 weeks of strong, non-levitating magnetic fields.

"We're trying to see what kind of physiological impact is due to prolonged microgravity, and also what kind of countermeasures might work against it for astronauts," Liu said. "If we can contribute to the future human exploration of space, that would be very exciting." They are now applying for funding for such research with their levitator.

Link via Popular Science

Image: U.S. Department of Energy

Yesterday, the American Chemical Society's database of identified, unique chemical substances hit the 50 million mark. Most of these discoveries were made quite recently:

“A novel substance is either isolated or synthesized every 2.6 seconds on the average during the past 12 months, day and night, seven days a week in the world,” said Dr. Hideaki Chihara, Ph.D. chemist and former president of Japan Association for International Chemical Information.

The rate new chemicals are being produced and isolated is astounding. It took 33 years to get the first 10 million chemicals registered and a mere nine months to get the last 10 million chemicals into the database. In part, the acceleration is due to better tracking by the American Chemical Society, but laboratories around the world are also just producing (and patenting) a tremendous amount of molecules.

Link

Image by flickr user delta avi delta used under creative commons license.

Eighteen-year-old Milan Karki of Nepal has invented a new type of solar panel that uses human hair as a conductor:

The hair replaces silicon, a pricey component typically used in solar panels, and means the panels can be produced at a low cost for those with no access to power, he explained....

The solar panel, which produces 9 V (18 W) of energy, costs around £23 to make from raw materials.

But if they were mass-produced, Milan says they could be sold for less than half that price, which could make them a quarter of the price of those already on the market.

Melanin, a pigment that gives hair its colour, is light sensitive and also acts as a type of conductor. Because hair is far cheaper than silicon the appliance is less costly.

Link (Photo: Tom Van Cakenberghe/Barcroft Media) - via Gizmodo

(YouTube Link)

Google's Japan division released this stop motion film explaining (in a rather fanciful way) how Street View works. It features a cute little robot puttering around town, taking film photographs and painting over license plate numbers with a marker. The video is part of an effort to make the practice less appear less invasive of individuals' privacy.

Via Boing Boing

The first Nerf product debuted forty years ago today. It began as a humble orange ball created by toy developer Reyn Guyer. His team designed several games that could be played with it and marketed it to Milton Bradley. That company turned him down. So Guyer took his product to Parker Brothers, who bought his idea, threw out the game rules, and began selling the ball as a single product. The company named the product "Nerf" after the packing material that off-roaders used to wrap around their roll-bars.

http://www.reynguyer.com/nerf.htm via GeekDad

Image via flickr user Jake Sutton used under creative commons license.

Yesterday, the residents of Samoa began driving on the left side of the road instead of the right. This is the first major switch since the 1970s, when Ghana, Nigeria, and Sierra Leone made the change. Randy James of Time magazine has an article exploring how different nations came to use different sides of the road:

Theories differ, but there's no doubt Napoleon was a major influence. The French have used the right since at least the late 18th century (there's evidence of a Parisian "keep-right" law dating to 1794). Some say that before the French Revolution, aristocrats drove their carriages on the left, forcing the peasantry to the right. Amid the upheaval, fearful aristocrats sought to blend in with the proletariat by traveling on the right as well. Regardless of the origin, Napoleon brought right-hand traffic to the nations he conquered, including Russia, Switzerland and Germany. Hitler, in turn, ordered right-hand traffic in Czechoslovakia and Austria in the 1930s. Nations that escaped right-handed conquest, like Great Britain, preserved their left-handed tradition.

Link via Outside the Beltway

Image by flickr user multitrack used under creative commons license.

(YouTube Link)

The Lucky Dragon is a work by Japanese artist Yanobe Kenji. It is a water and fire-shooting articulated steel dragon head with glowing eyes mounted on a 15-meter long cruise boat. The video above is of the boat in action at Aqua Metropolis festival in Osaka. It's scheduled to make similar demonstrations in Osaka's waterways until October 12.

Artist's Website

Link via DVICE

Image: DNA Art Forms

Lauren Davis of io9 describes four companies that make a portrait of you, right down to the profile of your DNA. Above is a portrait of a woman named Catherine from DNA Art Forms. It all started with a cheek swab:

After identifying 15 unique regions of your genetic code, clients consult with an artist as to how they want their DNA represented, be it as an abstract form, a landscape, or as an actual portrait including your image. Portraits start at $1500, and clients are consulted each step of the way, approving concept sketches before paint ever touches canvas.

Link

Photo: Popular Mechanics

The magazine Popular Mechanics has issued its Backyard Geniuses Award. It's like a Nobel Prize, but for people who complete amazing technical projects of questionable utility. Pictured above is a giant car-crushing mechanical hand by Christian Ristow, a former employee of Jim Henson's Creature Shop:

In 2007 Christian Ristow, an artist and former animatronics designer for the movie industry, demonstrated his first working incarnation of the Hand of Man at a robotics festival in Amsterdam. Much of his time since then has been spent re-engineering and refining the design of the 27-foot-long hydraulically actuated appendage, exhibiting more and more capable crushers at a series of public venues­. Ristow’s latest mechanical steel limb has 90-degree wrist rotation and improved mobility in the finger joints. It is powered by a 90-hp Perkins 1104C-44T four-cylinder diesel engine and is controlled through a glove worn by the operator. At demonstrations, that operator is usually a random member of the audience. “I’ve built other large-scale radio-control robots for shows over the years, but I always felt like I was the one having the most fun,” Ristow says. “This democratizes the crushing power.”

http://www.popularmechanics.com/home_journal/workshop/4329771.html?nav=RSS20&src=syn&dom=yah_buzz&mag=pop

(Video Link)

Muzorama is a surrealist short film created by students at the animation studio Superinfocom and presented last month at the Siggraph 2009 computer animation festival. The six students involved, Laurent Monneron, Elsa Brehin, Raphaël Calamote, Mauro Carraro, Maxime Cazaux, Emilien Davaux and Axel Tillement were assigned to create an animated short based upon the universe of an artist within six weeks. They selected the French illustrator Muzo.

Via The Presurfer

Matthew Moore of The Daily Telegraph has a list of fifty technological or cultural features being eroded or eliminated by the Internet. Here are a few samples. What would you add to the list?

1) The art of polite disagreement
While the inane spats of YouTube commencers may not be representative, the internet has certainly sharpened the tone of debate. The most raucous sections of the blogworld seem incapable of accepting sincerely held differences of opinion; all opponents must have "agendas"....

3) Listening to an album all the way through
The single is one of the unlikely beneficiaries of the internet – a development which can be looked at in two ways. There's no longer any need to endure eight tracks of filler for a couple of decent tunes, but will "album albums" like Radiohead's Amnesiac get the widespread hearing they deserve?...

22) Enforceable copyright
The record companies, film studios and news agencies are fighting back, but can the floodgates ever be closed?...

Link via Urlesque

Image via flickr user William Hook used under creative commons license.