Hans Walter Muller


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Pearls from the World Wide Web and the World World World.
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Cool illustration in Wombles.com, with the title : ‘Fuck homelessness, squat!”
Don’t squat, be a nomad. Never get stuck with the system, always change.
From Pasta&Vinegar (nice!), thanks to R-echo
Incomplete buildings are something that fascinate me. The raw backbone of the buildings looks as if it had been never finished or strip naked after a momentarily stopped renovation. To me, the city of the near future definitely looks like this sort of architecture. And this fascination is not just poetic, it’s a very recurring encounter in lots of cities due to economic and cultural issues in construction.
For example, the picture above has been taken in Cusco, Peru. It nicely reveals how the floors reached different levels of completeness. The one above is a restaurant where I had lunch in august, whereas the two other stories below have a totally different affordance. Sometimes, it’s even more fascinating when you have incomplete skyscrapers, falling into despair. Some are totally abandoned, some only partly… with pockets of emptiness. These structures often lead to interesting new forms of socialization that would surely need some time to be uncovered.
If like me you’re into this sort of things, you may be intrigued by a french architecture firm called coloco which works on this concept. Régine pointed me to their Skeleton Observatory. It’s actually a summary of their exploration, about why the think this architectural typology is important and may play a role in the near future. It eventually lead them to describe projects about “inhabiting the skeletons”, i.e. the re-appropriation of abandoned and incomplete architectures. The skeleton becomes and “invitation à l’usage” (i.e. “an invitation to be used”). They even have their own France-based abandoned building to test their hypotheses.
Why do I blog this? cataloguing curious signals about new forms of architecture on a pure exploratory angle.
http://weburbanist.com/2008/03/05/16-sweet-and-scary-building-demolitions-in-action/
Can building destructions be inspiring for building constructions? Just reverse it : it all unfolds beautifully doesn’t it? There is definitely something there…
In a revolutionary leap that could transform solar power from a marginal, boutique alternative into a mainstream energy source, MIT researchers have overcome a major barrier to large-scale solar power: storing energy for use when the sun doesn’t shine. Daniel Nocera describes new process for storing solar energy:
See the video.
Until now, solar power has been a daytime-only energy source, because storing extra solar energy for later use is prohibitively expensive and grossly inefficient. With today’s announcement, MIT researchers have hit upon a simple, inexpensive, highly efficient process for storing solar energy.
Requiring nothing but abundant, non-toxic natural materials, this discovery could unlock the most potent, carbon-free energy source of all: the sun.
“This is the nirvana of what we’ve been talking about for years,” said MIT’s Daniel Nocera, the Henry Dreyfus Professor of Energy at MIT and senior author of a paper describing the work in the July 31 issue of Science. “Solar power has always been a limited, far-off solution. Now we can seriously think about solar power as unlimited and soon.”
Inspired by the photosynthesis performed by plants, Nocera and Matthew Kanan, a postdoctoral fellow in Nocera’s lab, have developed an unprecedented process that will allow the sun’s energy to be used to split water into hydrogen and oxygen gases. Later, the oxygen and hydrogen may be recombined inside a fuel cell, creating carbon-free electricity to power your house or your electric car, day or night.
The key component in Nocera and Kanan’s new process is a new catalyst that produces oxygen gas from water; another catalyst produces valuable hydrogen gas. The new catalyst consists of cobalt metal, phosphate and an electrode, placed in water. When electricity – whether from a photovoltaic cell, a wind turbine or any other source – runs through the electrode, the cobalt and phosphate form a thin film on the electrode, and oxygen gas is produced.
Combined with another catalyst, such as platinum, that can produce hydrogen gas from water, the system can duplicate the water splitting reaction that occurs during photosynthesis.
The new catalyst works at room temperature, in neutral pH water, and it’s easy to set up, Nocera said. “That’s why I know this is going to work. It’s so easy to implement,” he said.
Sunlight has the greatest potential of any power source to solve the world’s energy problems, said Nocera. In one hour, enough sunlight strikes the Earth to provide the entire planet’s energy needs for one year.
James Barber, a leader in the study of photosynthesis who was not involved in this research, called the discovery by Nocera and Kanan a “giant leap” toward generating clean, carbon-free energy on a massive scale.
“This is a major discovery with enormous implications for the future prosperity of humankind,” said Barber, the Ernst Chain Professor of Biochemistry at Imperial College London. “The importance of their discovery cannot be overstated since it opens up the door for developing new technologies for energy production thus reducing our dependence for fossil fuels and addressing the global climate change problem.”
Currently available electrolyzers, which split water with electricity and are often used industrially, are not suited for artificial photosynthesis because they are very expensive and require a highly basic (non-benign) environment that has little to do with the conditions under which photosynthesis operates.
More engineering work needs to be done to integrate the new scientific discovery into existing photovoltaic systems, but Nocera said he is confident that such systems will become a reality.
“This is just the beginning,” said Nocera, principal investigator for the Solar Revolution Project funded by the Chesonis Family Foundation and co-Director of the Eni-MIT Solar Frontiers Center. “The scientific community is really going to run with this.”

Nocera hopes that within 10 years, homeowners will be able to power their homes in daylight through photovoltaic cells, while using excess solar energy to produce hydrogen and oxygen to power their own household fuel cell. Electricity-by-wire from a central source could be a thing of the past.
The project is part of the MIT Energy Initiative, a program designed to help transform the global energy system to meet the needs of the future and to help build a bridge to that future by improving today’s energy systems. MITEI Director Ernest Moniz, Cecil and Ida Green Professor of Physics and Engineering Systems, noted that “this discovery in the Nocera lab demonstrates that moving up the transformation of our energy supply system to one based on renewables will depend heavily on frontier basic science.”
The success of the Nocera lab shows the impact of a mixture of funding sources - governments, philanthropy, and industry. This project was funded by the National Science Foundation and by the Chesonis Family Foundation, which gave MIT $10 million this spring to launch the Solar Revolution Project, with a goal to make the large scale deployment of solar energy within 10 years.
Original article by Anne Trafton, News Office July 31, 2008