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racetoinfinity said: "I want to simply say, that at this late date, I can't believe the deniers of human caused climate change. Willful ignorance!..." [read]

Kylie Wrath said: "Whether or not leather is a product or by-product is irrelevant: there are tons of people who buy it regardless. I think the fact that this company..." [read]

thespyofcharles said: "hmm... perhaps i shall reconsider my excessive gift packaging gag i was planning... or maybe do it out of old boxes that would otherwise simply hav..." [read]

mike said: "I think it is humerous at the record losses posted at GM. They really had the jump on technoligy with the EV1 but decided to put all their effort i..." [read]

Louise White said: "I have a 2002 Prius with 143,000 miles on it. Recently I started checking on my trade in value for a new Prius. Every sales person told me that I..." [read]

Lori said: "Regardless of whether or not this "soup" exists, the fact is that we need to all be aware and responsible for how we treat this planet. We have to..." [read]

World's First 24-Cylinder Gas Engine

by Christine Lepisto, Berlin on 05. 6.08
Science & Technology

worlds-first-24-cylinder-engine

This monster 24-cylinder engine, powered by natural gas, will achieve a total efficiency level of more than 85% when it goes into service growing tomatoes. GE Energy will deliver two 4-MW Jenbacher J624 GS engines delivered to Royal Pride Holland's Middenmeer greenhouse operations 50 km north of Amsterdam in the Netherlands.

The installation is a "pilot project" to demonstrate the viability of the new engine. The 24-cylinder engine endured nearly a year of bench testing at GE Energy's gas engine manufacturing center in Jenbach, Austria.

Read more: World's First 24-Cylinder Gas Engine

Continental DC: Bentley Builds an Electric... Soapbox

by Michael Graham Richard, Gatineau, Canada on 05. 6.08
Science & Technology

Bentley Electric Car soapbox photo

A small team composed of young apprentices at Bentley were given pretty much carte blanche, and this cute electric vehicle is what came out after many weekends and evenings of hard work. We doubt that regular Bentley customers would be interested, but it's still a cool project.

"With a positively gorgeous carbon fiber composite body riding on a four-wheel single-wishbone fixed suspension and 1 x 16-inch Michelin low-rolling-resistance tires, the Continental DC (as in Direct Current) moves under the power of a 24-volt electric motor (from a motorized wheelchair, in fact) producing 0.5 horsepower and 5.1 pound-feet of torque and juiced by a pair of 12-volt batteries."

Read more: Continental DC: Bentley Builds an Electric... Soapbox

The Thorr Electric Car by Evisol

by Michael Graham Richard, Gatineau, Canada on 04.30.08
Science & Technology

Thorr Electric Car photo

Evisol makes "integrated solutions" for electric and hybrid vehicles (including boats). Drivetrains, batteries, that kind of stuff. How better to demonstrate their skills than by making an electric car of their own? Meet the Thorr electric roadster, a proud relative of the classic Lotus Super 7 concept.

Simplicity is the name of the game here. Low complexity, low weight. A car stripped of all the bells and whistles, except for the state of the art electric drivetrain. No ABS, power assisted braking, gearbox, power assisted steering, any form of sound absorption, not even a roof and a windshield (okay, that might be a bit overkill, but they'll probably tweak it some more). See below for specifications, a video and more photos.

Read more: The Thorr Electric Car by Evisol

Terry Kenney Wants to Turn Big Truck Traffic into Electricity

by Michael Graham Richard, Gatineau, Canada on 04.29.08
Science & Technology

Terry Kenney photo

While the Japanese are trying to produce electricity from train station gates (!?), entrepreneur Terry Kenney is going after a bigger target: Trucks.

It took him eight years to get a working prototype, but now there's one working at the Port of Oakland which Kenney calls the "Dragon Power Station". Special plates are set on the road, and as big trucks drive over them (about 2,500 of them per day at the port), they compress a tank of hydraulic fluid under the road, which in turn creates a series of pumping actions that turns a generator to produce electricity.

Read more: Terry Kenney Wants to Turn Big Truck Traffic into Electricity

Chair Racing in Germany Shows You Don't Have to Burn Fossil Fuels to Have Fun!

by Michael Graham Richard, Gatineau, Canada on 04.28.08
Science & Technology

Forget about Formula 1, Nascar and monster trucks... Here comes chair racing!

Okay, we admit it's a bit silly. But we're pretty sure that it provides a lot more entertainment per kilojoule than anything else (anything that you do with clothes, anyway). It shows you don't have to burn fossil fuels to get a lot of people to gather and have fun. Our favorites are the contestant in the pink bunny suit and the one spinning uncontrollably... ::Chair racing in Germany. If you're looking for a chair (to race or just to sit), see our BuyGreen guide for green office & desk chairs.

MIRA 'Plugless' Plug-In Hybrid Car Has Removable Battery Packs

by Michael Graham Richard, Gatineau, Canada on 04.25.08
Science & Technology

MIRA H4V Plug-in Hybrid Car battery packs photo

The Motor Industry Research Association (MIRA), a British automotive design, development and certification consultancy, has done what many TreeHugger readers have been suggesting in the comments of many posts about plug-in hybrid cars: Removable battery packs that can be swapped for full batteries that have been charged from the grid.

Their test vehicle is a modified Skoda Fabia which they call the H4V (Hybrid 4 wheel drive Vehicle) because the gasoline engine powers the front wheels while two 35kW electric motors power the rear wheels. The regular gasoline version of the car gets 32 mpg (7.24 L/100km) while their 'plugless' plug-in hybrid prototype returned 53 mpg (4.4 L/100km).

Read more: MIRA 'Plugless' Plug-In Hybrid Car Has Removable Battery Packs

Volkswagen Golf Turbo-Diesel Hybrid Too Expensive for Production

by Michael Graham Richard, Gatineau, Canada on 04.25.08
Science & Technology

VW Golf Turbo Diesel Hybrid photo

Volkswagen Golf Turbo-Diesel Hybrid too Expensive to Make

Volkswagen introduced a turbo-diesel hybrid-electric Golf concept car at the Geneva Motor Show, and the specs were impressive: 70 miles per gallon (3.3 liters per 100 kilometers), a 7-speed direct shift gearbox (DSG) with a twin-clutch, minor modifications to reduce aerodynamic drag, CO2 emissions of 89 g/km (lower than a Toyota Prius hybrid), and Tier 2 Bin 5 tailpipe emissions. And of course, the ability to run on biodiesel (waste cooking oil or algae, preferably).

But it was too good to be true. VW contradicted its earlier statement in the March 27 issue of Auto, Motor und Sport and said that the Golf turbo-diesel hybrid would be too expensive, so they're not going to make it (not as specified above, anyway). It's stillborn, in other words.

Read more: Volkswagen Golf Turbo-Diesel Hybrid Too Expensive for Production

Why Not Add Wind Turbines to the Queensboro Bridge in NY?

by Petz Scholtus, Barcelona on 04.24.08
Science & Technology

Some people find wind turbines ugly, others say they kill birds (read more about that myth here and here), but New York based artist Andrea Polli likes them so much, she wants to see some on top of Queensboro Bridge. She believes that integrating clean, renewable wind power can enhance the beauty of a city and suggests combining the landmark architecture of one of New York’s bridges, with wind power.

Read more: Why Not Add Wind Turbines to the Queensboro Bridge in NY?
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