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Waste Heat Could Power Computers, Cell Phones

Close to 60 percent of the energy produced by burning fuels or generated by power plants is lost as excess heat.  Computers, cars and pharmacy levitra cell phones all have to get rid of excess heat to viagra 20mg for sale run properly, creating a significant energy waste.  Researchers at MIT believe they've developed a way to reclaim a majority of that wasted energy and turn it into electricity.

Such an advancement in waste-energy harvesting could produce laptops and cell phones that run twice as long on a battery charge and highly efficient power plants, cars and planes.

The team carried out experiments to see how close to the Carnot Limit - the theoretical efficiency ceiling when converting heat to electricity - they could get.  Current devices only reach about a tenth of the limit, but using thermal diodes, the team was able to achieve 40 percent and they think as much as 90 percent is possible.

The secret to this new level of efficiency was reducing the amount of look here viagra next day delivery space between the cheapest generic viagra hot surface and the conversion device, a quantom-dot semiconductor.

A company called MTPV Corp. is already working on commercializing this technology and sees great potential for its use in electronics and cialis canada online pharmacy transportation.

via MIT News



Bacteria Could Rid the World of Packaging Waste

Consumer and shipping packaging can be incredibly wasteful.  Some companies are downsizing their packaging, but many products sitll come wrapped and boxed in ridiculous amounts of plastic, paper, cardboard - you name it.  One designer has come up with a way to get rid of the waste by wrapping objects in bacteria, creating a biodegradable, custom-fitting shell.  Both gross and exciting!

Mareike Frensmeier just won third place in the Cargo Packs 2020 challenge for his bacteria wrap idea called Bacs.  The packaging is made by covering an object with a culture of the bacterium acetobacter xylinum, then starting a sugar feeding frenzy.  This creates a "fibrous nano-scaled cellulose network" that encases the object and keeps it safe along its journey.

The Bacs system can be manipulated to offer damp, gel-like packaging for food, dry, paper-like packaging or freeze-dried, foam-like packaging for the most fragile objects.  Now, I'm not sure bacteria wrap will ever take off but the idea of a world free of packing peanuts sure is a nice one.

via Treehugger


Maldives Cutting Carbon with Coconuts

Back in March, The Maldives announced its plan to viagra more drug uses become carbon neutral by 2020 through a combination of renewable energy projects and carbon credits.  Now, the island nation has added another component to their carbon-cutting goal:  coconuts.

Yes, coconuts.  The country plans to use the cheap levitra without prescription shells along with other biowaste to produce biochar, which will be used as fertilizer instead of levitra oral gel the inorganic type the country currently imports.  Biochar is made by "slow cooking" the plant waste until it becomes a carbon-rich char that is mixed with soil and buried underground.

The company that is aiding the country with this endeavor, Carbon Gold, claims that this process serves as a kind of carbon sequestration - keeping the carbon created by the plant waste in the soil instead of being released into the atmosphere as it would be if the waste were just left to rot.  Whether or not that turns out to be an effective way to keep carbon out of the atmosphere, the use of the biochar will at the cheapest brand levitra very least cut back on the country's carbon emissions by eliminating the need to import fertilizer.

via BBC News



Ice Cream: A Tasty Low-Carbon Treat?

Keeping things cool requires a decent amount of carbon emissions.  Most of the time when you hear about solutions to very good site levitra to order this issue they're in the form of new types of refrigeration or cooling systems.  In an interesting twist, Unilever, the world's largest maker of ice cream (they own Ben & Jerry's, Breyer's, Good Humor, Popsicle and generic viagra generic other brands), has decided that the best solution isn't changing how things are refrigerated, but making those things no longer require refrigeration.

Food scientists at Unilever are hoping to cut carbon emisissions by creating a low-carbon ice cream:  one that can be shipped and sold at room temperature and then frozen at home.  They're calling it "ambient" ice cream and it won't require energy-demanding refrigerated trucks or freezer cases, reducing the product's carbon footprint and saving Unilever some cash on energy costs.

There are some changes people aren't likely to take to, so I'm thinking the biggest hurdle for the company isn't going to be creating this product, but making sure it still meets consumers' expectations for ice cream.  People most likely won't care that they have to freeze it themselves, but if my Half Baked tastes half as good, I won't be buying it.

Assuming they produce an equally tasty treat, a good question is when this ambient, energy-saving ice cream hits the shelves, will it be cheaper?  A low-cost, low-carbon ice cream that still tastes good - now that would be a winning combination.

via Times of London


When Life Hands You Lemons...Power Your Alarm Clock?

There are a lot of options when it comes to telling time off the grid.  It seems that alternative-powered clocks are everywhere, but they're not usually inexpensive and some require a lot of work to keep them juiced.

The Bedol Water Clock luckily has neither of those problems.  The small 4 inch by 3.5 inch clock runs off water with a splash of lemon juice for six to eight weeks at a time, meaning no regular cranking, recharging or need for a battery at all. Even better, the clock will only cost you $16.

The clock features an alarm and a built-in memory chip so you don't have to reset when it's time to refill.  Also, I like when aesthetics are taken into account with energy-saving products and fast delivery viagra they definitely were here.  The cute clock comes in four colors and is available here.

via Good Clean Tech


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