Priligy online now, save money EcoGeek - Brains for the Earth
EcoGeek - Brains for the Earth

APR 22

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"I guess it is easier (and cheaper) to weigh some worms than try to mea..."

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Enhanced Plant Oil Production May Boost Biofuels
Written by Philip Proefrock on 22/04/13   

A new development using genes from algae to engineer plants to levitra 100 store oils in their leaves could lead to improvements in both biofuel production and canada generic levitra the manufacture of buy cialis overnight animal feed. Researchers from Michigan State University have made plants with oily leaves, which were demonstrated when worms fed these leaves grew fatter than worms fed the unmodified version of the plants.

Most plant oils are stored in the seeds of the plant, and can be difficult to extract. But plants that store oils in their stems and leaves can be more easily processed to extract those oils. They also may produce greater quantities of oil than the original plants.

In addition to the potential use in biofuels, producing plants that store more oils in their leaves could also be a benefit for animal feed. Greater nutrition density from the same amount of crop could help feed more animals from the same area of cropland.

The lead scientist, MSU professor of biochemistry and molecular biology Christoph Benning, stated, "Many researchers are trying to enhance plants’ energy density, and this is another way of tramadol no prescription approaching it. It’s a proof-of-concept that could be used to boost plants’ oil production for biofuel use as well as improve the www.drk-dillenburg.de nutrition levels of animal feed."

Ongoing research will next move from demonstration of the concept to http://www.pneumapaniagua.es/buy-cialis-generic begin to explore specific applications "to enhance oil production in grasses and algae that have economic value."

image: by Rosendahl/Wikimedia Commons - Public Domain

 

MAY 30

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"Variations in the earth’s climate is not new, the variation in clima..."

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SciShow: A History of Earth's Climate
Written by Philip Proefrock on 30/05/13   

Is variability in the Earth's climate something new or has the climate always been changing? And, is it something that we should be concerned about?

In this week's Sci Show, Hank goes through a history of Earth's climate and finds a variety of factors that have influenced climate over time.

"Temperatures are increasing faster than they ever have. In the past 100 years, temperatures have risen so dramatically that thay have cancelled out all of the cooling that took place over the past 6,000 years."

 

JUN 21

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"I guess it is about time to discover more natural resources that have ..."

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Sulfur Makes Safer, More Efficient Batteries
Written by Philip Proefrock on 21/06/13   

Sulfur continues to offer promise in the energy storage realm. Low- cost lithium sulfur batteries were just a research topic a few years ago, and are now moving closer to practicality with new developments that could offer four times the energy storage of lithium-ion batteries.

Researchers at Oak Ridge National Laboratory have developed a technique that uses a solid electrolyte to produce a stable, low-cost, sulfur-based battery. "The new ionically-conductive cathode enabled the ORNL battery to maintain a capacity of 1200 milliamp-hours (mAh) per gram after 300 charge-discharge cycles at 60 degrees Celsius. For comparison, a traditional lithium-ion battery cathode has an average capacity between 140-170 mAh/g. Because lithium-sulfur batteries deliver about half the voltage of lithium-ion versions, this eight-fold increase in capacity demonstrated in the ORNL battery cathode translates into four times the gravimetric energy density of lithium-ion technologies."

Sulfur is a plentiful element, and is often a waste product of industrial processes, making it very cheap and readily available. Sulfur based batteries are also said to discount viagra viagra be less prone to instability and accidental fire than present lithium ion batteries are in part because the electrolytes are solid rather than liquid.

Sulfur has been part of large-scale sodium sulfur batteries for many years, but that technology requires high temperatures, and is best suited for industrial applications. The new developments offer the we use it non prescription levitra possibility of bringing sulfur-based batteries to consumer level applications.

image: sulphur and tramadol sale calcite CC BY-SA 3.0 by Didier Descouens/Wikimedia Commons

via: Treehugger (HT: Megan Treacy)

 

JUN 14

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New Design for Efficient Concentrating Solar Power
Written by Sarah Rich on 14/06/13   

Scaling up solar energy collection means addressing a critical problem. While additions like anti-reflective coatings can boost efficiency on solar panels, the more solar energy a collector gathers, the hotter it gets--and if temperatures rise too high the heat could damage the device.

A group at IBM Research - Zurich is levitra sales online addressing this problem and announced on Earth Day 2013 that they are developing a High Concentration PhotoVoltaic Thermal (HCPVT) system. IBM says the collector will be able to generate significantly more electrical power from the sun’s rays than comparable systems while staying cool enough to function.

According to IBM, the proposed HCPVT system’s dish contains hundreds of 100mg generic viagra photovoltaic chips, and the canadian healthcare, generic cialis rate at which it can generate electrical power is about 25kW. With the help of a microchannel water cooling system, the system is capable of concentrating the power of 2,000 suns, on average, and converting 80 percent of the radiation collected.

In a video, a research scientist at Zurich explains the solar radiation concentration methods that will be used in the proposed system.

The design offers other efficiency boosts: the hot water produced in the microchannels can be used for air conditioning or filtered for drinking. More electrical power and a useful hot water byproduct aren’t the only boons; as with many systems designed to increase efficiency, it promises to cialis best price have perscription be more cost effective as well. Although IBM’s press release on the usefull link levitra 20mg proposed system doesn’t mention any market plans, it does claim that the design is suitable for mass production. If they do go beyond prototype stages, IBM states these systems could be built at a cost three times lower than comparable systems, and may help deliver electricity, fresh water, and cool air to remote locations.

via: Engadget

screencaptured image via IBM Social Media

 

JUL 08

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MIT's Solar System Estimates City's Solar Power Potential
Written by Sarah Rich on 08/07/13   

Researchers at MIT have developed a new 3D solar potential mapping tool. The first rooftop solar mapping module of the Mapdwell platform, Solar System is available to anyone with Internet access. Incorporating factors ranging from roof angles and surface temperatures to local weather data and physical obstructions,

Solar System has been able to predict within 4 to 10 percent of photovoltaic (PV) panels' annual electricity yield during testing. MIT's home city of Cambridge, Massachusetts is the first to get a complete solar map of its 17,000 rooftops. According to Solar System, if PV panels were installed at all rooftop locations deemed "good" or better, they could provide one third of the city's energy needs for roughly $2.8 billion.

Solar System is inviting to play with and easy to use. But for all of the data it offers on potential expenses, tax credits, and revenue, these estimates cannot replace on-site evaluation for solar projects, as the "important notice" on any "Solar Electric Potential Report" states (example here). As with older solar mapping tools like the San Francisco Energy Map, since Solar System might not incorporate all real-world conditions into its analysis of a potential site, the use-value of the system seems more motivational and follow link canada cheap viagra symbolic than strictly informative and technical.

For those interested in PV panel installation on link for you get cialis online rooftops in Cambridge, it is an accessible place to start. As a way to viagra 30 mg generate awareness of solar power potential, Solar System could also offer those who hadn't considered PV panels for their buildings reasons to investigate it further. However, consumers exploring the possibilities on the map can only determine what PV panels may potentially, but not with certainty, generate and cost.

via: Treehugger

screen capture via Mapdwell Solar System

 


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