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The Best Electric Scooters Of 2012

Bravo EVT 168 Electric Moped Scooter

You may have been looking for our review of electric bikes. e-Zip E750 Electric Scooter by Currie Technologies This electric scooter, the e-Zip 750, is currently the top-rated electric scooter on Amazon, with an average 4.5 out of 5 stars from 69+ reviewers. It has a 12-mile range (depending on rider weight) and top speed of […]

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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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New Rooftop Wind Turbine Tested: The Helyx

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 […]

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The Best Water Filters Of 2010

Megahome Countertop Distiller

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.

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Electric Tankless Water Heaters

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 […]

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