Wednesday, December 2, 2009

Watt Will They Think Of Next? Water Powered LED Shower Light

Sylvania LED Eco-Light


Sylvania Water Powered LED Shower Light

"The Sylvania LED Ecolight Water Powered Shower Light is a multifunctional product that can make showering both safe and energy efficient.

There is a built-in LED light that requires no batteries or wiring; it converts incoming water pressure into a power supply.

A built-in sensor will change the color of the LED to let you know the approximate water temperature. Now you won't have to be shocked by freezing water or burned by scalding water; also great for kids. Both the LED light and the showerhead connection pivot up and down and side to side for added safety.

By using this LED you can go without using your standard bathroom light in the morning or evening and save energy. With this clever bathroom product you can enjoy innovative lighting technology in a practical way.

Well, this is innovative in that the water pressure powers a small electromagnetic turbine unit and never needs batteries but I sincerely doubt it lights up enough to be able to turn off the bathroom light.  I would still use electricity to heat up the water, maybe use more if I like the purple color the light changes into when it is goldilocks warm. 

Tuesday, December 1, 2009

How is America going to end? Slate's "Choose Your Own Apocalypse" lets you map out the death of the United States. - By Josh Levin - Slate Magazine

How is America going to end? Slate's "Choose Your Own Apocalypse"!

A few of the best ways for it to all come to a screeching halt:

13. Peak Oil: Petroleum production reaches terminal decline. Oil becomes too expensive to extract, and alternative energies can't maintain our fossil-fuel-dependent lifestyle. The developed world goes kaput, with gas-happy America leading the way to the gutter.

14. Peak Water: The overpopulated, overheated Southwest runs out of H20, instigating mass migration to Canada.

19. Geothermal Energy: In the post-petroleum age, we generate electricity by drilling into the Earth's interior to extract stored heat; we drill too deeply, causing massive earthquakes.

20. Nuclear Waste: Yucca Mountain and other nuclear storage facilities begin to leak radioactive waste. Everyone gets cancer.

26. Math and Science: American math and science aptitude deteriorates, killing innovation in the tech sector and pushing America to the back of the line of post-industrial economies.

27. Intelligent Design: Creationists succeed in getting evolution pushed out of textbooks. Scientific illiteracy dooms America to second-class status.

51. Supercollider: Legend has it that Switzerland's Large Hadron Collider could generate "mini black holes" that devour the universe. Turns out that idea was based on faulty science. But maybe the people who discovered the faulty science were themselves using faulty science. Eh, probably not.

104. Megadrought: According to Mark Lynas' Six Degrees: Our Future on a Hotter Planet, if the world gets one degree warmer, the Great Plains are at risk of turning into an expanse of sand dunes. Bad news for American agriculture (and everyone who lives in Nebraska).

105. Climate Migration: Refugees from Mexico, the Southwest, and coastal cities flee the devastation wrought by climate change, overwhelming the American cities that remain healthy.

109. Bottled Water: We continue to drink the stuff in prodigious amounts, and all the phthalates in the bottles cause massive health problems, including infertility.

I vote for the bottled water getting us all in the end.  Oh, the irony. 

CRUDE: A Joe Berlinger Film




The inside story of the infamous “Amazon Chernobyl” case, Crude is a real-life high stakes legal drama, set against a backdrop of the environmental movement, global politics, celebrity activism, human rights advocacy, the media, multinational corporate power, and rapidly-disappearing indigenous cultures.

Presenting a complex situation from multiple viewpoints, the film subverts the conventions of advocacy filmmaking, exploring a complicated situation from all angles while bringing an important story of environmental peril and human suffering into focus.




The plot thickens...  it is good to see a quality documentary inspiring true activism.

Sunday, November 29, 2009

Harnessing the power of salt, Norway tries osmotic power

Blue Power?




After wind, sun, currents and tides, a company is preparing to make clean electricity by harnessing another natural phenomenon, the energy-unleashing encounter of freshwater and seawater.

"It is a form of renewable energy which, unlike solar or wind power, produces a predictable and stable amount of energy regardless of the weather," explained Stein Erik Skilhagen, in charge of the project at state-owned Statkraft, which specialises in renewable energies.

Osmotic energy is based on the principle that nature is constantly seeking balance, and plays on the different concentration levels of liquids.

When freshwater and seawater meet on either side of a membrane -- a thin layer that retains salt but lets water pass -- freshwater is drawn towards the seawater side. The flow puts pressure on the seawater side, and that pressure can be used to drive a turbine, producing electricity.

Thank you PhysOrg, you never let me down.

Tuesday, November 24, 2009

What, exactly, makes a rocket fuel environmentally friendly?

What, exactly, makes a rocket fuel environmentally friendly?

NASA and the Air Force Office of Scientific Research (AFOSR) have successfully launched a nine-foot rocket to a height of 1,300ft using an environmentally-friendly rocket propellant made of a mixture of water and “nanoscale aluminum” powder. The fuel, called ALICE, has the consistency of toothpaste with a high burn rate and achieved a maximum thrust of 650 pounds during this test.

The aluminum-ice, or ALICE, propellant is considered “green” because it produces essentially hydrogen gas and aluminum oxide. This is compared to current space shuttle flights, which consume about 773 tons of the oxidizer ammonium perchlorate in the solid booster rockets, with about 230 tons of hydrochloric acid appearing immediately in the exhaust from such flights.


ALICE provides thrust through a chemical reaction between water and aluminum. As the aluminum ignites, water molecules provide oxygen and hydrogen to fuel the combustion until all of the powder is burned. The key to the propellant’s performance is the tiny size of the aluminum particles, which have a diameter of about 80 nanometers. The nanoparticles combust more rapidly than larger particles and enable better control over the reaction and the rocket’s thrust.

I wish I had thought of that.  Yeah, Purdue!

350.org Which "Scientists" and "Leading Climatologists"? Oh, Well.


What does the number 350 mean?

350 is the most important number in the world—it's what scientists say is the safe upper limit for carbon dioxide in the atmosphere, 350 parts per million (ppm).

Two years ago, after leading climatologists observed rapid ice melt in the Arctic and other frightening signs of climate change, they issued a series of studies showing that the planet faced both human and natural disaster if atmospheric concentrations of CO2 remained above 350 parts per million.

Everyone from Al Gore to the U.N.’s top climate scientist has now embraced this goal as necessary for stabilizing the planet and preventing complete disaster. Now the trick is getting our leaders to pay attention and craft policies that will put the world on track to get to 350.

Is 350 scientifically possible?

Right now, mostly because we’ve burned so much fossil fuel, the atmospheric concentration of co2 is 390 ppm—that’s way too high, and it’s why ice is melting, drought is spreading, forests are dying. To bring that number down, the first task is to stop putting more carbon into the atmosphere. That means a very fast transition to sun and wind and other renewable forms of power. If we can stop pouring more carbon into the atmosphere, then forests and oceans will slowly suck some of it out of the air and return us to safe levels.

Is 350 politically possible?

It’s very hard. It means switching off fossil fuel much more quickly than governments and corporations have been planning. Our best chance to speed up that process will come in December in Copenhagen, when the world’s nations meet to agree on a new climate treaty. Right now, they’re not planning to do enough. But we can change that--if we mobilize the world to swift and bold climate action.

Sunday, November 22, 2009

Those Crazy PSU'ers


This fall, a group of Portland State University researchers will install solar panels over a series of small eco-roofs.

Once relegated to the fringe, interest in solar energy is higher now in the U.S. than it’s ever been, owing to a confluence of factors: rising global demand for energy, increased urgency to find non-polluting power sources, and security concerns about access to energy sources.

For those reasons, solar reflects the “Holy Grail” of renewable energy options. While the world consumes an average rate of 15 terawatts (TW) of energy, experts have identified 600 TW of readily accessible solar output. Solar power is clean and carbon-free, a critical element to reducing current and future carbon emissions, which are a major contributor to global climate change.

Simply put, “Solar energy is going to save the world.”

Well, that's a relief.  We can all go back to sleep now.