Efficient: Books That Explain Train Travel In North America

Eight Great American Rail Journeys

Train travel is one of the most efficient forms of transportation. However, in North America, traveling by rail is not particularly systematic or comprehensive. It’s difficult to get an overview of what’s available. Thankfully, there are several good books on North American train travel, which I read recently. Here’s a brief review:

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How To Filter Your Drinking Water Very Efficiently

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 […]

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Using Magnetic Levitation In Wind Turbines

Today, I wrote a post for TreeHugger about a company that is proposing to build a colossal magnetic levitation wind turbine. Magnetic levitation (or maglev) is an interesting technology that has been around for a while.

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It’s Official: Toyota Testing Plug-In Hybrid In Japan, U.S. and Europe

Toyota has developed a plug-in hybrid vehicle for public road tests in Japan and plans the tests for the U.S. and Europe. (Cars that can run on electricity are much more efficient and economical than gasoline powered cars. They can recharged via renewable energy sources like the solar power and wind power. Even if the […]

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Micro-Wind Turbines: Update

I first wrote about these wind micro-wind turbines for TreeHugger in March. Since then the microturbines have become available for sale through the Motorwave website (here’s a direct link to the store). Right now, shipping costs from Hong Kong are about $300, but Lucien Gambarota, the inventor says he hopes to offer the turbines for […]

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