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Wind Turbines Now Spinning On Bahrain World Trade Center

This is a quick post to let you know that the Bahrain World Trade Center has turned on all three of its huge wind turbines simultaneously. For a glimpse of the turbines in action, check out the video over the fold:

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How To Filter Your Shower Water Very Efficiently

This post has been updated for 2011. I recently wrote about Filtering Your Drinking Water Very Efficiently, but let us turn now to your shower water. When we shower, we absorb the substances dissolved in water through our skin quite readily. For example, 60% of the chlorine absorbed daily comes from showering in chlorinated water. The chlorine is absorbed directly …

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Optimal: European Toys

This post has been updated and expanded here: Classic European Toys. Toys that are well-designed and made with renewable materials are optimal. European toys often fit this description. This durable block set, for example, is made in Germany by Haba using solid, natural, untreated beech wood that is harvested from sustainable forests. Toys like this are known for their longevity …

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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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 the faucet, rather than keeping …

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Most Efficient Filtering Plant: Boston Fern

The Boston Fern (Nephrolepis exaltata) — it’s the plant that’s the most efficient at removing formaldehyde (the most common indoor air pollutant). See our post on How To Grow Fresh Air for more information.

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Chameleon Lamps from Philips

Hold something in front of these lamps, and the lamp shade will change to the color of the object. There’s a standard light bulb inside, surrounded by a ring of LEDs which project the color onto the shade. These lamps will be released sometime next year by Philips. We also featured Philips’ interactive bulbs in a previous post.