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.


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How Portable Centrifugal Oil Cleaning Systems Work

Left unchecked, friction between the moving parts of an engine would turn it into an inert piece of sculpture. Clean, filtered oil keeps the parts moving with relatively little resistance.

How the Goblin Aero Works

What if a single gallon of gas could cover your weekly commute? The Goblin Aero might take a little leg-power, but it'll get you where you need to go in relative comfort and safety.

How the Husqvarna Automower Solar Hybrid Works

Ever wish the lawn would just mow itself? Well, the Husqvarna Automower is about as close as you'll get to that dream -- with the added bonus of using the sun for power.

How Tweet-a-Watt Works

A little friendly competition never hurts to stir up motivation, right? That's the idea behind Tweet-A-Watt, a power-monitoring gadget that connects your power usage to your Twitter account.

How Motion-powered Electronics Work

From toothbrushes to iPhones, we fill our lives with a seemingly unending string of gizmos -- all of which depend on electricity to give us what we need to make it through the day. What if you could generate that power?

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?

5 Energy-hungry Appliances

Sure, your hair dryer or toaster sucks up a lot of kilowatt-hours during the short time it's on, but what are the truly big drains on your home energy budget?

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?

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?

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.

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?

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?

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.

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?

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.

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.