Genetically Engineered Tadpoles glow to indicate Pollution

Genetically Engineered Glowing Tadpoles Detect Pollution

A new environmental monitoring system. Tadpoles have been genetically engineered to express a protein that lights up like a fairground in the presence of pollutants.

Researchers in France and a University of Wyoming professor have developed an innovative application of the technology by genetically engineering tadpoles to monitor heavy metal pollution in water. The system offers a way of rapidly detecting the physiological effects of environmental pollutants and is cheaper and more convenient than traditional means.

In this new approach African clawed frog tadpoles (Xenopus laevis) are modified with jellyfish genes so that they fluoresce when exposed to toxins. They light up in response to dosages that could be harmful to a human, and can indicate the presence of several different types of chemicals at the same time. Some tadpoles have been engineered to glow in the presence of metals, and others in response to plastics.

The scientists involved in this project are already looking to future applications for their tadpole technology. They believe the genetically engineered animals could be deployed to detect toxins in food. Foodstuffs could be turned into liquid and put into the aquarium.

In addition, future genetically engineered tadpoles could fluoresce different colors depending on the pollution they encounter. This requires genes that fluoresce different colors such as some coral genes that glow red.

Read more at: http://www.usnews.com/science/articles/2009/12/28/engineered-glowing-tadpoles-detect-pollution.html

Plastic Houses

Affresol makes modular portable homes from recycled plastic

After working with Cardiff and Glamorgan universities for two years, Affresol Ltd., an innovative manufacturer of high quality, low cost, quick construction systems, has developed a new material called Thermo Poly Rock (TPR) from recycled plastics and minerals. The Building Research Establishment (BRE) and the Carbon Trust also played a vital role in developing the revolutionary construction material. Now the company is using this newly developed material in making eco-friendly homes, each of which is made up of four tons of it. Until date, the company has recycled 18 tons of waste plastic in making modular portable buildings.

Ian McPherson, Affresol managing director, says, “ Every country in the world has issues with waste and we now have an opportunity to turn waste into an enduring housing resource that is 100% recyclable.”

Making use of a patented low energy cold process, Affresol converts the plastics into concrete, waterproof, fire retardant TPR panels. These panels form the load-bearing frame of the house and can support brick, block or stone, when it’s properly insulated and plastered. The roof is tiled with recycled materials. When the inhabitants abandon their living place – estimated life of the house is 60 years – the remnants of the TPR could be recycled again. Affresol will soon be launching a range of eco-friendly modular homes made from recycled plastic waste.

Read more at: http://news.bbc.co.uk/2/hi/uk_news/wales/8531170.stm

Check out the video: http://www.youtube.com/watch?v=BZ0FSX8i6S0&feature=player_embedded

A cost-effective solution to make city buses cheaper and greener

Ultracapacitors Make City Buses Cheaper, Greener

Buses with ultracapacitors stop at recharging stations, which double as bus stops, to recharge in less than a minute. A fleet of 17 buses near Shanghai has been running on ultracapacitors for the past three years, and in October 2009 that technology came to the Washington, DC, for a one-day demonstration. Chinese company Shanghai Aowei Technology Development Company, along with its US partner Sinautec Automobile Technologies, predict that this approach will provide an inexpensive and energy efficient way to power city buses in the near future.

A bus with ultracapacitors uses 40% less electricity compared to an electric bus with lithium-ion batteries, and requires just one-tenth the energy cost of a typical diesel-fuelled bus, which would save about $200,000 during the life of the vehicle. Plus, the buses are environmentally friendly: "Even if you use the dirtiest coal plant on the planet, it generates a third of the carbon dioxide of diesel when used to charge an ultracapacitor," said Dan Ye of Sinautec.

The biggest advantage of ultracapacitors is that they can fully recharge in less than a minute, unlike lithium-ion batteries which can take several hours. The downside of ultracapacitors is that they currently have a very short range, providing a distance of only a few miles, due to the fact that ultracapacitors can store only about 5% of the energy that lithium-ion batteries can hold.

Although their short range makes ultracapacitors impractical for cars, city buses have to stop frequently anyway.

The two companies hope that this is just the beginning for ultracapacitor buses. The company that makes the Shanghai buses, Foton America Bus Co, based in Tennessee, plans to deliver another 60 buses to the Chinese city in early 2010. The new buses will have ultracapacitors manufactured by Shanghai Aowei that supply 10-watt hours per kilogram, compared with the current ultracapacitors that have an energy density of six watt-hours per kilogram. Other US cities, including New York City, Chicago, and some towns in Florida, have also expressed interest in trailing the buses.

A cost-effective solution to make city buses cheaper and greener

Ultracapacitors Make City Buses Cheaper, Greener

Buses with ultracapacitors stop at recharging stations, which double as bus stops, to recharge in less than a minute. A fleet of 17 buses near Shanghai has been running on ultracapacitors for the past three years, and in October 2009 that technology came to the Washington, DC, for a one-day demonstration. Chinese company Shanghai Aowei Technology Development Company, along with its US partner Sinautec Automobile Technologies, predict that this approach will provide an inexpensive and energy efficient way to power city buses in the near future.

A bus with ultracapacitors uses 40% less electricity compared to an electric bus with lithium-ion batteries, and requires just one-tenth the energy cost of a typical diesel-fuelled bus, which would save about $200,000 during the life of the vehicle. Plus, the buses are environmentally friendly: "Even if you use the dirtiest coal plant on the planet, it generates a third of the carbon dioxide of diesel when used to charge an ultracapacitor," said Dan Ye of Sinautec.

The biggest advantage of ultracapacitors is that they can fully recharge in less than a minute, unlike lithium-ion batteries which can take several hours. The downside of ultracapacitors is that they currently have a very short range, providing a distance of only a few miles, due to the fact that ultracapacitors can store only about 5% of the energy that lithium-ion batteries can hold.

Although their short range makes ultracapacitors impractical for cars, city buses have to stop frequently anyway.

The two companies hope that this is just the beginning for ultracapacitor buses. The company that makes the Shanghai buses, Foton America Bus Co, based in Tennessee, plans to deliver another 60 buses to the Chinese city in early 2010. The new buses will have ultracapacitors manufactured by Shanghai Aowei that supply 10-watt hours per kilogram, compared with the current ultracapacitors that have an energy density of six watt-hours per kilogram. Other US cities, including New York City, Chicago, and some towns in Florida, have also expressed interest in trailing the buses.

Office A4 Sheets into toilet roll in half an hour

Turn waste office paper into toilet paper

While many environmentalists hope that we can eventually have a paperless office, one company in Japan has developed a machine that shreds paper and then converts the waste into readily usable toilet paper.

The process requires you to add water, and it requires about 30 minutes to thin out the paper and generate one roll of toilet paper. This 'TP' looks far from snuggly soft, but it's undeniably a significant step towards a greener office space. The entire process is automated, so it's definitely a big convenience.

The 'White Goat' as it's called is not a contraption that you're likely to squeeze under your desk however. It's mammoth size (1.8m tall and 600kg) would definitely be a better fit in your server room if you have one.

It's set to go on sale this summer in Japan for a price of about US$100,000.

Check out the video: http://www.youtube.com/watch?v=i51zo3LA70U&feature=player_embedded

Read more at: http://www.gizmag.com/waste-paper-in-toilet-paper-out/14048/

Nike’s Reuse-A-Shoe program: Running tracks made of shoe

Nike’s Reuse-A-Shoe program

Established in the early 1990s, Nike's Reuse-A-Shoe program collects old, worn-out athletic shoes for recycling, transforming them into Nike Grind, a material used in creating athletic and playground surfaces as well as select Nike products

Since the launch of its Reuse-A-Shoe program in 1990, Nike has recycled more than 21 million pairs of athletic shoes to create public basketball courts and athletic tracks around the world. Its new Considered Design approach aims to reduce waste and eliminate toxins from its factories, further reducing its carbon shoe print.

Check out how shoes are re-used: http://www.nikereuseashoe.com/

Pencil lead = ink

Printing With A Pencil Stub

An alternative piece used to do some essays or reports come in the form of a pencil. But that is ancient history. Now it seems technology is going back, putting pencils to good use.

With the Concept Pencil Printer, pencil stubs are now re-used. Instead of throwing away your pencil stubs, you could always feed them to this concept printer, which will then convert the pencil into “ink” for your document printing needs.

It works by separating the wood and lead inside the printer. It can even erase the print on your documents when you find something erroneous thanks to the eraser that is included with the bundle.

Check out more pictures at: http://www.yankodesign.com/2010/02/04/printing-with-a-pencil-stub/

Assembly line hydrophonics

Hydro Harvest production greenhouse---stuns the visitor with its nearly wall-to-wall contents of green. It's a rabbit's dreamland: three 9-foot-wide mats of densely planted lettuce, elevated waist-high and slightly aslant, running the length of the greenhouse with only narrow aisles between. Everything looks ready to eat, but closer inspection reveals that each house-long strip of plants starts with seedlings at the far end and offers mature heads only nearest the greenhouse entrance. The seemingly unbroken ribbons of planting actually consist of hundreds of nine-foot sections of white plastic rain gutter laid side by side like ties on a railroad, each filled with perlite and sporting eleven lettuce plants spaced along its length.

A section of seedlings, placed on the rails with gutters edge to edge, begins the process at the back end of the greenhouse. After one to two weeks of growth, depending on the season, the whole section is rolled forward. As the gutters are moved ahead, they are also spread apart on the skids, to make room for more growth. Then a new section of seedlings is added behind the section that has advanced. More moves follow after additional growth, until there are four sections on the tracks, and the initial planting has reached the other end of the house---by which time its gutters have been spaced several inches apart to correspond with the breadth of full-grown plants. After harvest, the liberated gutters in the lead section are topped off with new perlite and shifted to the rear to take on more seedlings, while the three remaining sections move ahead again.

The system makes optimum use of available space and ensures that plants are ready for harvesting when they arrive at the end of the greenhouse from which they will be shipped. The system also works well for feeding. The support rails under the gutters are designed so that the gutters slope for drainage. Long, black, four-inch vinyl pipes, suspended over the high edge of the gutters, act as reservoirs for the nutrient fluid. Hundreds of tubes project from the larger pipes, and the nutrient solution drips into the perlite and heads downslope. What the plants don't drink and the perlite doesn't absorb runs out the lower ends of the gutters into drain channels, which carry this unused solution to sumps, where pumps return it to the overhead pipes.

Read full article at: http://www.schundler.com/hydrofarm.htm