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Posted: 30 Nov 2009 04:03 PM PST

Thanks to the efforts of some people over at Uppsala University in Sweden, we may yet address the power problems with these new paper-thin batteries made from celulllose produced by Cladophora or green algae. These Cladophora specimens are found in beaches and produce cellulose with an unusually large surface area. These algae cellulose can hold up to 50 to 200 percent more charge than similar conducting polymer batteries, and may someday compete with commercial lithium batteries.

Charge times could also trump today's rechargeables – the researchers managed to recharge their test batteries in anywhere from 8 minutes down to as little as 11 seconds. Combining their thinness and new found energy, these batteries can certainly be welcome additions to the growing need for batteries which are seen as the next big demand to date.

(Source) Technabob

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Green Algae Batteries

Washable Electrostatic Furnace Filters

Posted: 30 Nov 2009 04:01 PM PST

For sure a lot of us have air conditioning units or air filters at home. And while they are used to provide some protection by making the air we breathe clean, the filters we use pose an eco-friendly issue that needs to be addressed. They are bound to be replaced at some point and just like any other garbage issue, they contribute to the growing waste problem we have which are not recycled properly. However a site aims to change all that by providing us with permanent and washable filters.

NeverBuyAnotherFilter.com offers electrostatic filters that can be washed and reused. So rather than throw them away and compound the landfill woes, the company offer these logical filters which cost around $40.00 and $70.00 and pay for themselves in about one year when compared to similar MERV 8 disposable filters.

(Source) Press

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Washable Electrostatic Furnace Filters