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12000mAh LCD Dual Backup USB External Power Bank Battery Charger for Cell Phone.   Katso myös hongkong.fi Deuzer kannettava käynnistysapu, varavirtalähde, 12Ah. 69,95€, 15.10.2015

Dual USB Port Car Cigarette Lighter Charger Mount Holder For Mobile Smart Phone

12000mAh LCD Dual Backup USB External Power Bank Battery Charger for Cell Phone. Katso myös hongkong.fi Deuzer kannettava käynnistysapu, varavirtalähde, 12Ah. 69,95€, 15.10.2015

Make A Cheap Solar Charger From 2 Garden Solar Lights

40+ Of Our Favourite DIY Solar Projects & Tutorials

Make a cheap solar usb charge You can make a solar usb charger from old solar garden lights With this charger you can charge every device that uses the usb port to charge, like your phone for instance.

How To Refill Your Printer Cartridges

How To Refill Your Printer CartridgesThinkin' Ink

High gas prices are driving people to look at alternatives to fossil fuels, such as a turbine designed by the father of alternating current, Nikola Tesla.

How the Tesla Turbine Works

Tesla Turbine Operation relies on the boundary layer effect to turn the discs and make the turbine work. Find out more about Tesla turbine operation.

Food & Cooking

A quern is an ancient stone tool used for grinding grain into flour.

How to Make a Home Biogas Digester | Making methane cooking gas from waste and compost isn’t new. Tinkerers in remote locations and farms around the world have been tapping into biogas for years with varying degrees of success.  Read more: http://www.grit.com/departments/home-biogas-digester.aspx#ixzz35sL84rrq

How to Make a Home Biogas Digester (Maybe) - Do It Yourself - GRIT Magazine

Most people would like to have their homes cooled by the strength of sunlight which ironically causes heat. How to achieve energy efficient cooling of your abode by harnessing sunlight? I have successfully implemented a solar powered air conditioning unit for my living room which has been working great since June 2013 . Let me tell you how I have done it.Notes to keep in mind:What I have implemented is an off grid power system. My home generates its own power and can run without utility…

Solar Powered Air Conditioning Unit.

Most people would like to have their homes cooled by the strength of sunlight which ironically causes heat. How to achieve energy efficient cooling of your abode .

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