Here is some helpful information to find the best computer under $500. The average price of a personal computer is somewhere in the neighborhood of $1300, according to CNET.com. That’s a rather hefty chunk of change, especially if you’re a recent high school or college graduate and don’t have a sizable bank account (who does… [Continue Reading]
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The world’s largest wind turbine is now the Enercon E-126. This turbine has a rotor diameter of 126 meters (413 feet). The E-126 is a more sophisticated version of the E-112, formerly the world’s largest wind turbine and rated at 6 megawatts. This new turbine is officially rated at 6 megawatts too, but will most… [Continue Reading]
This skyscraper, to be built in Dubai, is called the Burj al-Taqa (‘Energy Tower’), and it will produce 100% of its own power. The tower will have a huge (197 foot diameter) wind turbine on its roof, and arrays of solar cells that will total 161,459 square feet in size. Additional energy is provided by… [Continue Reading]
Once again, we have scoured the internet to find the highest rated flashlights. The lights we feature here received the most praise from the forums and review sites we assessed. These sites included: Backpacking Light, Light Reviews, and the Candle Power Forums. A few notable brands of flashlight are still made in the U.S. – Streamlight (made in Eagleville, Pennsylvania) and… [Continue Reading]
Note: This post has been expanded and updated for 2009! Tankless water heaters only heat water when it is needed. About 8% to 30% of the energy consumed by a standard water heater goes to keeping the water hot while it’s not being used. New tankless systems heat the water instantly when you turn on… [Continue Reading]
A lot of readers expressed interest in using red and blue LEDs for hydroponic growing. These LED lights can be found at Amazon. It is, of course, more efficient to grow plants outside, but when this is not possible, LEDs are an efficient choice.
This apartment high-rise concept won a sustainable housing award recently in China. It integrates a vertical greenhouse into the high-rise. Designed by Knafo Klimor Architects, the “agro-housing” concept allows the residents to produce their own food, reducing commuting needs and providing a green neighbourhood. The greenhouse is a multi-floor structure for cultivation of crops such… [Continue Reading]