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Sustainable Technologies at Home

Sustainable technologies at home allow individuals to live their lives without producing unnecessary waste and pollution. They may cost a bit more up-front, but will help the Earth and save you money in the long run.

How Solar Water Heaters Work

When you get that gas or electric bill at the end of the month, you may swear off long, hot showers. But if your resolution always seems to cool after a few days, you might be a good candidate for a solar water heater.

5 Things to Consider When Building a Solar-powered Home

While rebates and tax credits have put solar power within reach for many homeowners, it's still an expensive undertaking. How do you make sure you get your money's worth? See more »

How the Aqualim Shower Head Works

A 10-minute shower can seem like nothing on a cold, sleepy morning, but it might cost you 50 gallons of water (or more). Is there a way to limit the volume of water you use? See more »

How the Duke Smart Home Works

The Duke Smart Home isn't your typical residence hall. It's a live-in laboratory, complete with LEED Platinum certification. What's inside (and out) that makes it so special? See more »

How Soil Lamps Work

Did you ever make a potato clock as a kid? If so, you already understand the basic principles that make a soil lamp work. See more »

Top 5 Energy-efficient Computers

Energy efficiency is starting to rank right up there with speed and power in terms of desirable attributes for a computer. What are five of the most energy-efficient computers on the market? See more »

How the Horizon H-racer Works

Hydrogen power has been on the drawing board for decades, but it's yet to take off in full-sized cars. Could the tiny H-racer be hydrogen's in with the world of alternative fuels? See more »

How Kill A Watt Works

How much energy does your TV use when it's plugged in all night? How much power is your stereo system draining from the socket monthly? The Kill A Watt and other energy monitors help you find out. See more »

How Fastronauts Will Work

Kids are little bundles of energy, but their complex toys usually rely on batteries or wires for power. Could a toy somehow harness that bountiful childhood energy of motion? See more »

How Gravity-powered Floor Lamps Will Work

Alternative energy usually means something is mined, refined, collected or grown. But gravity-powered floor lamps rely only on a force of nature -- and the strength of a human being. See more »

5 Green Mobile Apps

Do you find it easy being green? If you're one of the millions of smartphone users out there, these applications will help you make being green even easier. See more »