Recently, I wrote about the low-profile Aerotecture wind turbines, which are designed to be installed on the rooftops of city buildings. Now I’ve heard of another rooftop wind turbine under development. It’s called the Helyx Wind Generator, and it’s composed of two twisted wings of fiberglass that rotate around a vertical axis. The turbine is… [Continue Reading]
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The Best Shower Filter
February 8, 2009 by 95 Comments
Note: Please stop read this article, and read our updated shower filter article instead I wanted to post an update on my quest for the best shower filter. I received a lot of useful comments on my last shower filter post, and I’ve also tested a couple of new shower filters.
The Best Water Filters Of 2010
February 17, 2010 by 104 Comments
There are a lot of misleading claims about water filters. Many filters are marketed with general statements like “improves taste and odor”. But filter manufacturers don’t mention the specific amount of pesticides or chloramines removed, for example.
The Three Fundamental Flaws Of The Modern Toilet
December 11, 2008 by 45 Comments
My unwinking, analytical gaze of efficiency now turns to the toilet. Unfortunately, the design of the modern Western toilet is highly inefficient, in fact, it is so inefficient that it is actually harming our health. The modern toilet has only been around for about 150 years — the “porcelain throne” was created to “give dignity”… [Continue Reading]
$2 Billion Wind Turbine Order Is Largest Ever
May 15, 2008 by 44 Comments
Texas oilman T. Boone Pickens has placed an the largest ever order for wind turbines: he ordered 667 wind turbines from GE, each costing $3 million dollars, making the total order $2 billion. Pickens plans to develop the world’s largest wind farm in the panhandle of Texas.
How To Filter Your Drinking Water Very Efficiently
February 18, 2008 by 45 Comments
I’ve spent quite a bit of time researching how to filter drinking water effectively. Originally, I was interested in filtering the rainwater that falls on my roof. But I had to put that project on the back burner for now. During my research I noticed that there is little unbiased information available on water filters… [Continue Reading]
Soap Nuts: Natural Detergent
August 4, 2005 by 16 Comments
We always like to discover innovative, plant-based products that are being introduced into the marketplace. Take for example, Soap Nuts which are an organic, eco-effective alternative to detergent. The powder is made from the sun-dried fruit of Sapindus Trifoliatus trees in south eastern India which is ground into a fine powder. Nothing further is added… [Continue Reading]
Chlorine Alternatives For Efficient Swimming Pools
June 7, 2010 by 14 Comments
Cannonball! Jumping into a swimming pool is a classic way to beat the heat on a hot summer day. But clean pool water requires a combination of filtration, circulation, and sanitization. Chlorine has long been the most common tool for keeping pools free of bacteria and algae – but it has its drawbacks, and there… [Continue Reading]
Costa Rica Is 99% Powered By Renewable Energy
April 8, 2008 by 43 Comments
Costa Rica is a country rich with renewable energy. In fact, it gets about 99% of all its electrical energy from clean sources, and it’s aiming to be the first country to become carbon neutral (more about that below). Some of Costa Rica’s energy sources include geothermal energy, the burning of sugarcane waste and other… [Continue Reading]
Italian Town Runs On 100% Renewable Power
December 17, 2007 by 21 Comments
Varese Ligure, a town in Northern Italy, runs on 100% renewable power. The town uses a mix of wind, solar and small-scale hydropower. The town has reaped benefits from the energy network through added jobs, and an additional 350,000 euros [US $514,000] in revenues that are handed over to the council each year. Varese has… [Continue Reading]
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