Floating Windmills: Power at Sea

Floating Windmills (they broke the link – when will sites lean how to obey basic usability practices?):

A demonstration project is currently being planned based on wind turbines with a power generation capacity of 3 megawatt (MW). The windmills will reach 80 meters above the sea’s surface and will have a rotor diameter of about 90 meters.

According to plans, the demonstration project will start operating in 2007. We eventually envision wind turbines with a power capacity of 5 MW and a rotor diameter of approximately 120 meters.

“The future goal is to have large-scale offshore wind parks with up to 200 turbines capable of producing up to 4 terawatt hours (TWh) per year and delivering renewable electricity to both offshore and onshore activities. This goal is far in the future, but if we’re to succeed in 10-15 years, we have to start the work today,” Bech GjÃ¸rv says.

For photos see: Offshore Wind Turbine Farms

Effect of People on Other Species

We’ve Seen The Future, And It Is Us:

Human habitation has been, and is increasingly, playing a direct role not only in the extinction of species, but in their evolution. By our own actions, we may be accompanied into the future by ever more diverse pests and pathogens, and may leave behind what we value most—elephants, tigers, and others of the earth’s great megabeasts.
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Where we have industrialized agriculture, weeds have evolved to chemically mimic our crops to avoid the herbicide. Insect pests have evolved resistance to DDT and to the pesticides that have followed. We have countered with genetically engineered crops. Already there are insect species resistant to the defenses of those crops. When we add new species of crops, insects in turn rapidly switch to those.

Australian Coal Mining Caused Earthquakes

Coal Mining Causing Earthquakes, Study Says by Richard A. Lovett:

The magnitude-5.6 quake that struck Newcastle, in New South Wales, on December 28, 1989, killed 13 people, injured 160, and caused 3.5 billion U.S. dollars worth of damage. That quake was triggered by changes in tectonic forces caused by 200 years of underground coal mining, according to a study by Christian D. Klose of Columbia University’s Lamont-Doherty Earth Observatory in Palisades, New York.
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The removal of millions of tons of coal from the area caused much of the stress that triggered the Newcastle quake, Klose said. But even more significant was groundwater pumping needed to keep the mines from flooding.

Google Tech Webcasts #3

Here are some more technology webcasts from Google:

Competing On The Basis Of Speed by Mary Poppendieck discussing complexity, queuing theory, and constant innovation (see more on lean software development and see articles by the Poppendieck’s)
Ubuntu Linux by Mark Shuttleworth. The new computer I bought last month is running Ubuntu. So far it has been great.
Should Google Go Nuclear? Clean, cheap, nuclear power (no, really) by Dr. Robert Bussard – “Goodbye thermonuclear fusion; hello inertial electrostatic confinement fusion (IEC), an old idea that’s been made new.”
Keeping Up With The Human Genome by Tim Hubbard
Ruby And Google Maps by Andre Lewis
Third Millennium Problem Solving by David Brin and Sheldon Brown.

Too Much Choice

When Choice is Demotivating: Can One Desire Too Much of a Good Thing? by Sheena S. Iyengar and Mark R. Lepper:

In 1830, Alexis de Tocqueville commented that, “In America I have seen the freest and best educated of men in circumstances the happiest to be found in the world; yet it seemed to me that a cloud habitually hung on their brow, and they seemed serious and almost sad even in their pleasures.” (p.536) More than one hundred years later, we are confronted with empirical findings which may support the paradox that de Tocqueville observed.

The three studies described in this report demonstrate for the first time the possibility, that while having more choices might appear desirable, it may sometimes have detrimental consequences for human motivation.

See more on this from our management blog: The Psychology of Too Much Choice.

Related: Choices = Headaches – The Paradox of Choice: Why More Is Less (videocast)

Midichloria mitochondrii

Use the force, bacteria (sadly, the site broke the link so our link was removed):

When his team took a tick apart to look for the new bug, they found it in the ovaries. And, when they looked closely at electron micrographs of infected ovarian tissues, they could see that the microbes were intracellular – living not in the cytoplasm of tick ova, but within their mitochondria.

“We’d never seen anything like this before,” Lo says, as he opens the image files on his laptop on a rainy afternoon in Sydney. “They seem to get in between the inner and outer mitochondrial membranes and eat the mitochondria up. In the end you’ve just got this empty sack.”
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says he wasn’t aware of any other bacteria that live inside mitochondria. “It’s pretty surprising to see a bacterial species living inside the mitochondrion, which itself was a bacterium,”

Green Cards for Engineering Faculty

With growing foreign faculty, Tech clarifies ‘green card’ policy at Virginia Tech:

There are another 259 Tech employees on H1-B visas. About half of them will be applying for green cards. Berkley-Coats said costs for obtaining a green card usually run between $3,000 and $5,000. The wait usually ranges from two to three years, though it can extend up to five years because of backlogs of immigrants from countries such as China and India.

Under Tech’s new policy, only employees applying for full-time, salaried positions with the potential to keep them at Tech for several years qualify. The position must be considered “significant” by the department and requires approval of the department head, dean or other senior managers, depending on the position. Postdoctoral employees–scholars or researchers paid to do academic study at the university, usually by grants that fund their work for a limited time–are not part of the policy.

Meteorite Lands in New Jersey Bathroom

What Landed in New Jersey? It Came From Outer Space:

The object that tore through the roof of a house in the New Jersey suburbs this week was an iron meteorite, perhaps billions of years old and maybe ripped from the belly of an asteroid, experts who examined it said yesterday.
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The meteorite now belongs to the family whose house it ended up in, said Lt. Robert Brightman of the Freehold Township Police Department, adding that they had asked not to be identified. The family has not yet given permission for physical testing of the meteorite, but from looking at it, Dr. Delaney and other experts were able to tell that the object it had been part of — perhaps an asteroid — cooled relatively fast.

It is magnetic, and reasonably dense, they determined. The leading edge — the one that faced forward as it traveled through the earth’s atmosphere — was much smoother, while the so-called trailing edge seemed to have caught pieces of molten metal. In fact, Mr. Delaney said, it seemed very similar to another meteorite fragment, the Ahnighito, now on display at the American Museum of Natural History.

The meteorite was about the size of a golf ball.

Internet Underwater Fiber

Underwater Peril:

Laying undersea cable systems is a monumental process. After surveying landing sites, studying seabed geology, and assessing risks, engineers plot a route. A company like Corning delivers strands of fiber-optic glass to a manufacturer say, Tyco Telecommunications which encases the fiber in metal. Then gigantic spools of cable, repeaters that transmit signals long distances, and other gear are loaded on cable-laying vessels. For months, the ships lower the cables thousands of feet to the seabed. In congested spots, engineers use robots to dig trenches for the cable that protect it from wayward anchors and fishing nets. Then crews haul the cable ends above water and connect them to land-based stations.
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Engineering experts say the Taiwan incident should persuade all operators to do more to prepare for quakes. It’s not good enough if you have a variety of routes but then bring them into shore at the same location–especially if, as in the Taiwan case, they’re crossing a fault line right there.
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But there’s another lesson: The global telecom network really is quite resilient, even in the face of such a crippling blow. Within 12 hours of the undersea rock slides, at least partial service had been restored to most of the affected networks. This was done by rerouting traffic via land and sea through Europe to the U.S.

The Differences Between Culture and Code

An excellent Lawrence Lessig speech on On Free, and the Differences between Culture and Code (video). I think many find it quite difficult to understand the true power behind these ideas. This speech is a version of one we have mentioned before. He is in excellent form. YouTube and Google video are great services, it will be nice when the quality of the video images are improved, which I am sure will happen over time.

I was able to seem him in person at the ASEE annual conference in Portland, which was great. See photos from my subsequent vacation in the Pacific Northwest.