Archive for the ‘Green’ Category

“Dumb” eco-questions you were afraid to ask

Sunday, November 16th, 2008

“Dumb” eco-questions you were afraid to ask. New Scientist offers the definitive guide to everything you wanted to know about being green but were too embarrassed to ask…

If I switch the light on and off every time I enter and leave a room, does this use more energy than leaving it on all evening?

Switching the light on and off does saves energy, but there is a catch. Every time you flip the switch, the bulb takes a jolt of electricity, which shortens its life. Studies by the Electric Power Research Institute in Palo Alto, California, found that turning low-energy compact fluorescent bulbs on and off at frequent intervals can shorten their lifespan by as much as 75 per cent. The institute’s director of energy utilisation, Tom Reddoch, suggests leaving energy-saving bulbs on if you will be out of the room for less than 15 minutes.

Read more @ New Scientist

Make Pt1262
CRAFT 09 - Recycled, repurposed, and reused materials are the focus of the projects in this issue, which will also feature a DIY holiday gift guide. Create cool crafts and save the planet at the same time! Our November issue focuses on all things green: Eco-friendly projects, features on crafters and companies that promote environmentally friendly practices, and just in time for the holiday frenzy, an inspiring gallery of DIY gifts - get the latest CRAFT here!

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Original post by Phillip Torrone

Should tomorrow be zero-waste?

Friday, November 14th, 2008

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From Treehugger, here’s an interesting call against recycling. In part:

Lets call recycling what it is- a fraud, a sham, a scam perpetrated by big business on the citizens and municipalities of America. Look who sponsors the National Recycling Coalition: behind America Recycles Day: Coca-Cola, Pepsico, Anheuser-Busch, Coors, Owens-Illinois, International Bottled Water Association, the same people who brought you that other fraud, Keep America Beautiful.
Recycling is simply the transfer of producer responsibility for what they produce to the taxpayer who has to pick it up and take it away.

So let’s remove recycling from the three R’s; it doesn’t belong there, use “repair” instead. Let’s demand returnable bottles and deposits on everything and let’s celebrate Zero Waste Day on November 15 with a returnable bottle of beer.

Seems like a relatively-plausible conspiracy theory, and a confrontational way to frame the issue. But, I’d hate to see anybody delay working on a green-tech project while they wait for more sustainable product packaging… what do you think?

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Original post by Luke Iseman

The art of can throwing

Wednesday, November 12th, 2008

Scott Beale of LaughingSquid writes:

“Can Throwing″, it’s kind of like Parkour for recycling.

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Original post by Gareth Branwyn

Housing in tents times

Wednesday, November 12th, 2008

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Treehugger has an excellent overview of 30 non-standard ways to put a roof over your head in ‘tents times.’ Above is one of my favorite: a tent disguised as a car. Don’t worry: the article is as good as the pun is bad:)

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Original post by Luke Iseman

Soild lamp burns LEDs and wants to be a plant

Wednesday, November 12th, 2008

soil_lamp.jpg

This “Soil Lamp” by Marieke Staps is made of mud and lights an LED through the natural metabolism of the biological organisms contained within it. We’ve seen fruit powering electronics before, but building it into something that resembles a commercial product is still pretty far off.

Soil Lamp via Next Nature

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Original post by Jonah Brucker-Cohen

Soil lamp burns LEDs and wants to be a plant

Wednesday, November 12th, 2008

soil_lamp.jpg

This “Soil Lamp” by Marieke Staps is made of mud and lights an LED through the natural metabolism of the biological organisms contained within it. We’ve seen fruit powering electronics before, but building it into something that resembles a commercial product is still pretty far off.

Soil Lamp via Next Nature

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Original post by Jonah Brucker-Cohen

African bottle opener

Tuesday, November 11th, 2008

Sometimes it’s just that simple - a bottle opener from Togo, made with a piece of stick and a screw, with a lovely beaded handle.

Togolese Bottle Opener Simplicity

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Original post by Gareth Branwyn

WattzOn - Personal energy audit

Monday, November 10th, 2008

Make Pt1219

Slides (PDF) of the WattzOn presentation at the Web 2.0 Summit…

MacArthur Fellow, Dr. Saul Griffith will demonstrate a new, free digital application that allows anyone to more broadly understand their real energy footprint. The rich online audit calculates personal energy consumption from flying, driving, powering a home, eating, shopping, working and even one’s share of the energy necessary to make our society function. WattzOn helps users understand their personal impact on the environment and how they rate compared to others WattzOn users, as well as global averages.

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Original post by Phillip Torrone

Yep, it’s Fink’s Grape Jelly

Monday, November 10th, 2008

I smiled when I saw this posting on MAKE contributor Steve Lodefink’s blog about making and canning Concord grape jelly. When we moved into our current house, which has several mature concord grape vines, we decided to make jelly. Like Steve, we went onto the net, and it looks like we landed on the same recipe. We too started to peel the grapes as recommended, decided to forget it after a few dozen, and just crushed the rest. We canned a bunch of small jars of jelly, made our own labels (tho nothing as cool as Steve’s) and gave our homemade jelly away as Christmas presents. I had a bunch of left-over green tomatoes at the end of the season, typed “green tomatoes” into Google, and found a green tomato relish recipe. We canned that too. The two jars, with the bright green relish and the vivid grape color, with our homemade labels, looked great. And the results were INSANE. We couldn’t get over how amazing both products tasted. Friends, family, and neighbors we gave the two jars to were calling and begging us for more. We started treating the remaining few jars like gold bullion. Every year, we make noise about canning more grape jelly and tomato relish, but we always seem too busy. Shame, really. That was a truly satisfying maker experience, from start to finish. Sounds like Steve didn’t have as good a beginner’s luck, but his labels are MUCH cooler! That little girl looks sugar-crazed!


Grape Jelly

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Original post by Gareth Branwyn

Stirling engine car

Sunday, November 9th, 2008

N0908Kamenscar 275Px
N0908Car 275Px
Dean Kamen is working on a Stirling engine car and it’s on the road…

The same day that Ford and General Motors announced catastrophic third-quarter losses, Dean Kamen was showing off his new electric car.

The prototype vehicle, a zippy two-seat hatchback designed with more than a passing resemblance to the Volkswagen Beetle, can go about 60 miles on a single charge of its lithium battery and with practically zero emissions.

The secret?

“It’s the world’s first Stirling hybrid electric car,” its inventor said with a flourish.

Installed in the car’s trunk compartment is a Stirling engine invented at DEKA, Kamen’s technology company in the Manchester Millyard. It powers the features that would normally drain huge power from the battery, notably the defroster and heater.

That leaves the battery primarily for propulsion. “You’re running a pure electric, which is enormously cheaper to operate and enormously more environmentally friendly,” Kamen explained.

And if the battery does run low, the Stirling can recharge it, so you’ll never get stranded, he said. That’s why Kamen calls his Stirling engine “an insurance policy” for the electric car.

Kamen showed off his state registration for his new car, listed as a 2008 DEKA Revolt. “I′m a car manufacturer!” he grinned. “It’s so exciting!”

More:
Make Pt1178
The Two-Can Stirling Engine- The Stirling engine has long captivated inventors and dreamers. Here are complete plans for building and operating a two-cylinder model that runs on almost any high-temperature heat source. MAKE 07 - page 90.

Make Pt1180
Dean Kamen: The Dean of Engineering. Wasting time is an unspeakable crime, says Segway inventor Dean Kamen. MAKE 04 - page 28.

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Original post by Phillip Torrone

Learning from sustainable energy

Sunday, November 9th, 2008

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There are lots of reasons why we should be weaning our society off of carbon based fossil fuels and moving to sustainable, renewable fuels.

Pick which ever reason you like and get to work:

Security: Do we need to barricade solar panels and wind mills like nuclear power plants?

Decentralized power: If a corporation owns the nuclear power plant, coal fired plant, natural gas plant or other big energy producer, then will they have your interests in mind as they make decisions? Would the same be true about a person who has a windmill on his or her property? Who should be in control, the corporations or the people? Both?

Safety: Have you ever seen a car burning with a with a full or partially full tank of gas? It is quite a sight when the tank blows. If it spills, then the gasoline makes a big mess. Lots of kitty litter. Are gas stations known to be clean? Would you grow food on the same property as the coal power plant or nuclear plant? Would you grow food at the base of a wind mill? How about next to a solar hot water installation? Would that be safe?

“Magic”: Creating energy out of ‘nothing’ is pretty much magic, at least it seems that way. You don’t have to ship wind from across the world. Sunlight falls on the ground if we don’t intercept it with a solar panel. There are other examples for each renewable energy source.

Making your own power is fun: Make some electricity today. Shake a flashlight, crank up a radio, charge a cell phone with light, heat your snack with the sun. You may just be surprised at how fun it is to generate electricity or capture heat.

Because we can: Generating more of our own power is something we can do. If we do it, we will have to learn more about how things work. We will have to learn about making systems function. It won’t be entirely easy, but it can be done. So why not give it a shot?

Social Justice: In the news today, pay attention to the countries mentioned as having the worst human rights records. Then check out whether they have oil reserves. They probably do.

Buy Local: If we spend our energy dollars on oil that has been shipped from across the world, we are sending dollars outside the country. Do they need it more than we do? What are they going to do with our money? What could we do with that money?

Limited supply: When is/was/will be peak oil? US peak oil happened sometime in the early seventies. It was predicted by M. King Hubbert during the fifties that the US would use up the half of the oil in the ground in the seventies. Do you hear much about Pennsylvania crude anymore? He is credited with Hubbert’s curve, and often is credited with the term Peak Oil. He made other predictions about world oil supply and when it would peak. Oil will not last forever. How come we don’t use whale oil to provide us with light at night? Whale oil used to be a big industry.

Build a new industry: If the technologies for harnessing the energy of the sun and planet come from the US, then the jobs, profits and credit for the solution also goes with the US or whoever actually solves the problem.

Fossils are from the past, not the future: We are going to move away from fossil fuels eventually. Fossil fuels are not renewable. We use them up much faster than we can replenish the supply. The last drop of oil will never be pumped. The last drop will remain in the ground because it is too impractical to extract it. Why not move towards energy independence because we want to create something better? We could wait for $7 a gallon gasoline, but then we are not working from a position of strength. In the face of rapidly fluctuating energy prices like we have seen in the past couple of years, we have reduced the amount of energy we are using. We don’t have to do it in a panic. We can make this transition with a sense of patriotism, environmentalism, personal finances, curiosity or whatever positive motivator we want.

Many people don’t know how to move towards using more renewable fuels. Take some simple steps yourself as soon as you can. Make some electricity yourself. After you make it, find out how a part of the system works. It is usually simple stuff that just seems complex. If you turn a dc motor, it can be a generator. So you can convert your muscle power, or water falling, or a spring unwinding into electricity for light, sound, computing or many other uses. Solar garden lights are pretty cheap these days. Get some and see how they work. See what you recognize in the system and learn from there.

How can we begin doing the important work of teaching people to be more careful with the energy we have, and generate more of it ourselves? What is the best way to teach about energy generation? What can kids do to make their schools and homes more energy efficient? How can we encourage students to show us the was towards a more secure and sustainable future?

Feel free to add ideas in the comments that suggest a constructive path towards our future energy system.

Mr.Solar has some good information

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Original post by Chris Connors

100% of electricity from renewable and non-carbon sources in 10 years

Saturday, November 8th, 2008

As part of the promotion around The Best of Instructables Volume 1, PT offered me a guest blogging spot at Makezine, which I naturally jumped at. This is the first of my periodic posts

In the best talk of the 2008 Web 2.0 Summit Al Gore called for president-elect Obama to make a man-on-the-moon-like pledge to generate 100% of the United States’ electricity from renewable and non-carbon sources within 10 years. Al Gore is truly an amazing orator, and when he got fired up about the climate, renewable energy, energy independence, and how it could play a centerpiece of our economy, I got fired up and so did the rest of the audience.

What really sent shivers down my spine was this observation: When Neil Armstrong first stepped on the moon, the average age of the control engineers running the mission from Houston was 26, making them 18 when Kennedy made his pledge in 1960.

Generating 100% of our electricity from renewables and non-carbon sources in 10 years (let’s call it 100-in-10) is the same caliber of challenge, but unlike getting to the moon — which was something only a government could do at the time — building a full economy of renewable energy should be orchestrated by the government, but requires the efforts of countless makers. I seem huge numbers of opportunities, both large and small, to make a difference and have impact. Get an engineering degree and invent a new type of powerplant, design and publish plans for low-cost DIY solar home heaters, be an advocate of renewable products and services.

It’s clear that a lot can happen in 10 years, and even if Obama doesn’t call for 100-in-10, the time to make a difference is now.

This is cross-posted on my site, Instructables, here. The image is (CC) Brian Solis, www.briansolis.com, bub.blicio.us.

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Original post by Eric J. Wilhelm

Glass bottle table

Thursday, November 6th, 2008

Here’s a design for a sturdy table using just glass bottles and glue for the base.

beertable.jpg

I wouldn’t think glass bottles glued together would give you a table capable of supporting 200 pounds, and I′m glad to be proven wrong. Glass bottles are one of the few ‘recyclables’ that my local recycling center has to actually pay someone to haul away. What other ways of recycling more than one at a time have you seen?

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Original post by Luke Iseman

Laser sensors for wind turbines

Thursday, November 6th, 2008

Make Pt1146
Technology Review - laser sensors for wind turbines

A new fiber-optic laser system can measure wind speed and direction up to 1000 meters in front of a wind turbine, giving the massive machines enough precious seconds to proactively adapt to gusts and sudden changes in wind direction. The device, developed by Catch the Wind, a startup based in Manassas, VA, could improve the efficiency of wind turbines and keep them from breaking down.

More:
Make Pt1147
Wind Powered Generator. With a motor and some piping, it’s suprisingly easy to build this inexpensive, efficient windmill generator–and enjoy free energy forever. Read this article in MAKE: 05: Science, Weather, and Outdoors, Page 90. To get MAKE, subscribe or purchase single volumes. MAKE: Digital Edition subscribers—read this article now in your digital edition!

Flying17Foot
HOW TO Build a 17-ft Wind Turbine.

 50F1E5F1D1Bd2A4D3C3Bea65.Medium
DIY 1000 watt wind turbine.

 Img413 902
HOW TO - Build your own wind turbine.

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Original post by Phillip Torrone

Wood stove from water heater

Tuesday, November 4th, 2008

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In the oldies but goodies department, Mother Earth News has an article on how to make a junked water heater into a fancy wood-burning stove. And yes, successfully completing this project does make your hair grow back:)

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Original post by Luke Iseman


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