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Earth

First Photos From the European Solar Decathlon 26

An anonymous reader writes "The 2010 Solar Decathlon Europe kicked off today in Madrid, Spain, with a stunning array of solar-powered prefab homes. Seventeen teams from around the globe are battling it out in the center of the city to see who has the most efficient solar-powered and eco-friendly house. Just as in the competition in Washington DC, the teams will be graded on minimal energy use, innovative architecture and engineering, sustainability, and more. Check out these exclusive photos from the event for a first look at the most exciting houses in this year's competition."
Idle

Hand Written Clock 86

a3buster writes "This clock does not actually have a man inside, but a flatscreen that plays a 24-hour loop of this video by the artist watching his own clock somewhere and painstakingly erasing and re-writing each minute. This video was taken at Design Miami during Art Basel Miami Beach 2009."

Comment Separation of powers (Score 1) 420

As I understand it another point for concern is a possible violation of the separation of powers.

Entries on the list are chosen and maintained by the federal police (BKA). The executive can thereby wield power that should normally be reserved to the judiciary. I am no lawyer, so please correct me if I am wrong.

However, if it is indeed true that the borders between executive and judiciary are violated in this case then a complaint of unconstitutionality (Verfassungsklage) is in order. Judging from recent verdicts of the Federal Constitutional Court my hope is, that the law will be declared unconstitutional.

Comment Re:Clear example of directional selection... (Score 4, Informative) 216

"If, over time the frequencies of the alleles for large and small change in the population, then we have, by definition, evolution."

No, we haven't. We just have frequency variation. But we haven't change the gene pool a dime. Without new characteristics we have no evolution, by definition.

I have to agree with GP, we indeed have evolution, by definition. Evolution is not defined by "new characteristics", whatever that is. Could you please provide a reference that defines evolution as "new characteristics"?

Evolution is (as I have learned during my biology studies) defined as a change in allele frequency. If the genetic make-up of the population changes from one generation to another (and frequency variation constitutes such a change), then we have evolution.

Furthermore, you assume that only frequencies change. That need not be the case. A phenotypical change in size (as in this case) might also very well be caused by mutation, what might be a "new characteristic". Superficially you have no way if distinguishing the two processes.

Comment Re:So how abundant are the raw materials? (Score 1) 369

While I see your points with regard to cobalt and nickel, I would like to object to your thoughts about cadmium. Sure, it is poisenous. But NiCd-Batteries are on their way out. They just can't compete with the high(er) capacity alternatives that NiMH- or LiIon-Batteries offer. Furthermore, at least the EU has banned the use of NiCd-Batteries almost completely. Therefore, I just don't see how the demand for cadmium will increase tenfold.
Programming

Evolution of Mona Lisa Via Genetic Programming 326

mhelander writes "In his weblog Roger Alsing describes how he used genetic programming to arrive at a remarkably good approximation of Mona Lisa using only 50 semi-transparent polygons. His blog entry includes a set of pictures that let you see how 'Poly Lisa' evolved over roughly a million generations. Both beautiful to look at and a striking way to get a feel for the power of evolutionary algorithms."
Biotech

The Unforgettable Amnesiac 120

jamie found an account in the NYTimes of the life and death of one of the most important figures in modern neuroscience, Henry Gustav Molaison — a man who could not form memories. Molaison became an amnesiac after a brain operation in 1953. Known worldwide as H.M., Molaison was studied intensively for 55 years. Dr. Brenda Milner, a psychologist from Montreal, was the first researcher to visit Molaison. In 1962 she authored a landmark study demonstrating that a part of Molaison's memory was fully intact. "The implications were enormous. Scientists saw that there were at least two systems in the brain for creating new memories. One, known as declarative memory, records names, faces and new experiences and stores them until they are consciously retrieved. ... Another system, commonly known as motor learning, is subconscious and depends on other brain systems. This explains why people can jump on a bike after years away from one and take the thing for a ride, or why they can pick up a guitar that they have not played in years and still remember how to strum it. Soon 'everyone wanted an amnesic to study,' Dr. Milner said..."

Comment Re:I have my doubts... but, (Score 1) 557

While I believe you that you "really" need all these appliances it often astounds me, how resistant some people are to the concept of "energy saving" and "efficiency".

Were I in your situation (with a power consumption of sometimes 5000 W, which really boggles my mind) I would ask myself how I could save energy (even without problems of hydrogen storage).

Do you really have to have 8 (!) computers running at all times?
It seems to be quite hot in your area (4 (!) ACs). Is there a necessity for a HEATER in the pool?
Along the same lines: Do you have to use a dryer? Why not air-dry the laundry if it is so hot?

And so on. Then again, I don't know how many people there are in your household which might put the power consumption into perspective, but still.

Just for comparison: I live not in "Afghanistan" (btw, a rather superfluous remark of you) but in Germany. I live alone in a 2 room apartment. I don't have a heated pool, a dryer or an AC, but I would subjectively consider my standard of living rather high. This obviously depends on your definition of living standard and what contributes to it, so we might be very different with regard to that aspect.

My yearly electricity consumption is approx. 2500 kWh which translates into a continuous use of 250 W. Of course that is rather low, even in comparison with typical usage in Germany. But, and that is the point, I can assure you that I am quite happy and content at the moment. Cutting your power consumption drastically does not equal a move to "Afghanistan".

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