The link between energy and architecture is all to obvious. For at least a century we believed that energy had to serve architecture and could be relegated to second place. With global warming the overriding importance sits with energy concerns for some years to come. We spend billions to repair the bad architectural and fast growth architecture of the post 2WW era of architecture, especially the construction boom of the 60s and 70s. The driver of change in architecture has moved from the period of social architecture (60s, 70s) to energetic architecture. Energy in architecture has multiple dimensions. Whereas a century ago the shift consisted in the installation of central heating systems in the northern hemisphere of the globe at scale, in the 21st century the concern there shifts to isolation from heat (and cold) to more efficient, less polluting energy provision. Cooling houses and office spaces during extended periods and higher peeks of heat, ask for substantial revisions of existent architecture and the next generation of energetic architecture. Before long, we shall also think more seriously about the handling of water in architecture, a topic which is closely linked to energy consumption and design.
From a sociological point of view we are used to ask questions of social inequality related to this issue as well. We are on the way to move into a society of energy-rich versus energy poor households and enterprises. Financing of adaptations of housing and offices to the energetic challenges is likely to create severe additional inequalities, which exacerbate the already existing ones. If you have no money to spare, you will be unable to invest into energy savings with more distant returns on investment (ROI). At older age you are less resistant to heat waves and causes health disadvantages. If previous investments were impossible or the urgency for energetic architecture was neglected for too long, additional health inequalities shall arise.
The “Deutsches Architekturmuseum” has built an exhibition around this theme, which widens the perspective of architecture and energy. This highlights the additional concern for energetic architecture and people living or working in (modern) architecture.
(Image Trier Roman arena 2025)
Berlin building
Yes, 35 years after re-unification Berlin is still building at lots of places. The boom years of building hotels for tourists, offices for ministries, which were moving from Bonn to Berlin, is now followed by a „surprising“ need to have sufficient vacancies in private housing. Berlin is still growing in terms of population and, of course, this creates additional upward pressure on the housing market with particularly high increases on the rental market. In order to achieve a narrowing of the gap between demand and supply, Berlin is building higher as well as digging deeper into its sandy ground. In such huge open spaces near Südkreuz it is then feasible to explore and later exploit geothermal energy for years to come. Maybe it is not a surprise that apparently a Texas (USA) based investor has bought the ground and builds in Berlin. Drilling in Berlin for energy from underneath is a worthwhile business. Hence, drill baby drill has a new Berlin meaning to it.
Archi health
The links between architecture and human health are manifold. There are direct effects of healthy versus unhealthy materials in construction. For the purpose of making buildings fire proof or more resistant to heat asbestos had been used for decades which still causes health hazards nowadays in the removal of this cancerous material. Paint has to be chosen wisely as well as isolation materials. Indirect or second round effects of materials have to be considered additionally. Cement in construction uses a lot of energy in its production and has only been recycled since a few years in significant amounts. Room climate or even psychological effects of architecture have been considered to be important more seriously in recent years. A new discipline entitled “neuro-architecture” may be developed soon. Schools, sports facilities, hospitals or community centers benefit from healthy architecture. Cost benefit analyses which take into account long term effects and even recycling of materials shift the balance much in favor of health considerations also in architecture. “Fast and dirty” will be much more expensive than “slow and healthy”. Future generations will be thankful. (Image: Spreewald Primary school Berlin).
Archi Octagon
The architecture we see around us has lots of interesting mathematical features. Some are the basis for more complicated calculations. The octagon shape is not that common, but with some formulas the calculations become easier and construction in the real world is more feasible. Well worth to dig a bit deeper into this shape. The geometry of angles and circumference follows rules that have been laid out a long time ago. The webpages explaining this are manifold and it is a project of its own kind to compare them and recommend the best ones. My current favorite is: mathmonks. A reasonable choice is in most cases also wikipedia, the long running amazing knowledge project also for the octagon.
Image: Berlin Europa Center 2025.
Archi Geometry
Architecture has an obvious and visible link with geometry. Clear lines, rectangular or triangular shapes have dominated for centuries since the Greek temples. Geometry was a discipline that has attracted many scholars and particularly architects. Nowadays the shapes are much more diversified and sometimes complex. The calculation of surfaces, curved lines and shapes have become an issue of more complicated mathematics. Volumes of irregular shapes are a challenge for most people to calculate and heating or cooling sich buildings adds considerable complexity. It is, however, rather relaxing and fascinating to look at the marvels of modern shapes in architecture. Technology and material science have allowed us spectacular progress and designs in recent years. Paris offers a splendid perspective on such developments.
Owners Dispute
Renovations of housing with distributed ownerships can be a challenging experience. In Berlin you can find a few places with visible long-term disagreement about what kind of modernization should be done. More luxurious additions like balconies or triple window isolation and so on are sometimes hotly debated and contested in courts. For most buildings you cannot spot disagreements on the outside, but some constitute exceptions to this rule. One size does not fit all preferences. In a metropolitan city there is a place and a space for all such exceptions to the rule and most people after years do no longer think about such kind of diversity in preferences or budgets available for modernization. Cities put our level of tolerance to a continuous test. You probably learn to love this or eventually you leave the inner city. There are subtle differences in urban versus rural lifestyles. In the social sciences we continue to try to understand the attraction of cities as on a global scale millions of people flock to cities.
Housing renovation
The huge amount of buildings that need renovation is a task for each generation. New constructions are relatively easy to realize even to the best available standards. Particularly energy standards asking nowadays for serious isolation of buildings are easy starting from scratch. Energetic renovations of existing buildings are much more challenging and have to take into account the various stages or predilections of previous generations. Repurposing of buildings raise additional questions like transforming a family home into a representative office building. New technologies like fiberglass instead of copper cables or copper or plastic tubes instead of other hazardous materials cause additional costs and worries. The use of asbestos for interiors of previous generations has created the greatest liability for existing buildings. Technological choices of the past and also of the present (heat pump or not) have lasting consequences and sometimes even health effects. To cherish old buildings and styles is a mixed blessing as the renovation of housing confronts home renovators with more tricky challenges than building a new home. Incremental repairs might do the trick rather than all in one go renovation, however, you might enter into a situation when renovations are always on your mind. Not only the times are a changing, but homes are a changing, too.
Great Petit Palais
The Petit Palais in Paris was built together with the Grand Palais for the World Exhibition in 1900. The great architecture of both buildings is complemented by great interiors. The Petit Palais has also been the home of donations to, as well as commissions by, the city of Paris since 1870. This means that a sizable collection of sculptures and paintings has accumulated since then. In spring 2025 the visit of these collections is free of charge and gives honor to the donors and artists exhibited. Over time the collections spread more than 2500 years of art history similar to the exhibition at the BNF gallery Mansard. In the 21st century the exhibition of a piece of art, which stems from the North of Syria reminds us that art is a treasure that can last even if the civilization has been lost or at interrupted for many centuries. This is an important aspect of taking a long term perspective on international politics and history. The breadth of the collection allows a stroll through art history in a splendid setting. Romanticism and impressionism receive a little bit of attention, but the architecture of the Petit Palais invites you to delve into lesser known territory. This, probably is the specific merit of the joint presentation of otherwise necessarily eclectic collections of donors across centuries.
(Image: Anse de chaudron Syrie du Nord 700 years before our time, Petit Palais Paris).
La défense Végétale
Greening a metal and concrete block and buildings is a big challenge. The logic of unrealistic growth and big business has left liabilities for future generations. More vegetation in inner cities is part of our responsibility towards future generations. Therefore, urban planning has started in Paris to get rid of concrete walls and floors.
Eventually the district might have a more human touch which attracts citizens and new businesses and services. The adaptation of the infrastructure to facilitate mobility with bicycles and secured pedestrian paths has started but will take a lot of time before people adopt again these more healthy modes of transport. The big boulevards reserved for polluting transport is no longer adequate in combination with residential living spaces.
It will take a change of a whole generation to accomplish such a fundamental change. The reduced demand for office space due to more employees choosing to work from home contributes to such a change as well. Many other cities go ahead with similar changes (Copenhagen, Berlin). In combination with the „All electric society“ there are fundamental changes at work which will make inner cities more attractive again. Ease of clean transportation and other infrastructure for urban lifestyles ensures that cities remain strong points of attraction. They keep pulling people from nearby and far away towards them, if we like it or not.
Berlin Mind
For a long time now, I have been asking myself the question: What is like to be in a „Berlin state of mind“. The exhibition of the 2 photographers of the Berlin Landesarchiv as part of the Berlin activities of the EMOP contributed to understanding and more precise description of the „Berlin state of mind“. As we shall celebrate in 2025 the 80th anniversary of the liberation of Europe, Germany and Berlin from Nazi rule and terror, we have seen endless reconstruction and reshaping of the city. The ever growing need for housing and space-grabbing office buildings bring about a permanent feeling of change, of becoming, of under construction. The years of the separated city as well as the building and taking down of the Berlin wall created many new opportunities for developers of the city and its structure of quarters, arrondisements or „Bezirke“ and „Kieze“ within the districts.
Due to the continuous urban renewal also of basic infrastructure Berliners have the impression that there is construction work all around us all the time. With the abundant construction works come the construction fences. They too have changed. Some fences show digital prints of virtual worlds of the Berlin living in some future time. However, the promises often mask the reality that fences will be replaced by concrete walls and inaccessible buildings for most people of the neighborhood as gated business space or city blocks grab the space to form and reform the metropolitan landscape. The construction fences themselves become the contested areas where different strata of society interact or intersect. The „Berlin state of mind“ is one of becoming. Longing to become something else, something aware of the overwhelming historical duties, but still rising from the ashes. The experience to see a wall come down between cold war enemies liberates a belief that we can overcome frontiers. However, this in-between state of mind has brought us multiple fences of all sorts. Construction fences are only the most visible ones that surround the many spaces under construction. In the imagery of Berliners and visitors beyond the wall, fences are continuously on our minds in the „Berlin state of mind“.
Digital Visions
Urban planning has been digitalized for a long time. 3D modeling of places and buildings including their interiors are state of the art. As urbanization is also about investment, speculation and anticipation, digital imaging has entered the public spheres in form of cover up of building sites behind fences and in form of large digital prints for information, curiosity and advertising purposes. The inner cities are frequently an avantgarde and microcosm of societal developments. Some dream of full or total flexibility for office spaces (see image below), others experience the inner cities as the spotlight of inequality in society. The best paid executives are catered for by the worst paid delivery personnel. The photographers of the Landesarchiv Berlin, Grönboldt and Wunstorf, brought together a documentary exhibition entitled „Pixel aus Beton“, pixel made of concrete.
With a bird‘s eye view they reveal past, present and future details of how Berlin is experienced and envisioned by investors, architects and people living through the seemingly endless construction going on in the city. The keywords list as part of the exhibition creates a link to scientific literature and to the TU Center for Metropolitan Studies. Photography and even more so digital photography offers a social science perspective to the digital images exhibited. Cities are data spinning areas and a formidable place for digital visuals and visions.
Air Concept
Well yes, this is the latest fart in design and architecture. The Berlin International University of Applied Sciences composed an exhibition on “Air Architectures” which takes air seriously. The international group of 7th semester students took Air Architecture seriously and developed their ideas in the context of a curated exhibition. Nice semester project.
Air is a fundamental precondition for humans to (co-)exist. The biology of air (breathing) or the chemistry of air (fine particle matter) have been studied extensively. The physics of air flows in cities receive more attention as well in architecture. Interior design has yet a lot to contribute in the age of heat pumps and air conditioning.
Let’s think architecture from the perspective of air and air flow. Depending on our cultural background we might have very different associations with air. Indian or Chinese practices like yoga or Tai Chi teach us to take air more seriously than Western practices. Most architecture in cold countries of the northern hemisphere aim to keep air to the outside of buildings. Yet, the percentage of humidity of air is a serious concern of architecture as well. Air flow and quality then becomes a key issue of construction and architecture, somehow through the back door.
Maybe in approaching architecture we might think first of what is or has been the architect’s concept of air or aerodynamics. 100 years after the death of Gustave Eiffel and the Olympic Games in Paris, we still gain from thinking about air (not only air pollution) and its dynamics. Looking forward to the next generation of air architects.
(Image: Exhibition, Air architectures, at Berlin International, University of Applied Sciences 2024-12)
Paris Vision
You got to have a vision in urban planning. Long term visions are best to then realize them step by step. The center of Paris has been restructured since the time of Haussmann at several places. The previous commercial center of Paris with « Les Halles » and the building of the commodities exchange « La Bourse de Commerce « have been turned into a pedestrian area long ago. This axis runs nowadays from the home of the Pinault Collection to Les Halles almost to the Centre Pompidou (in the background of the image below). Whereas Les Halles is usually very popular and crowded with people the art museums are a bit less busy. Walking around in the area is offering amenities for people of all walks of life. It is an area, better called a pedestrian boulevard, where the wealthy and the poor may meet or at least pass by. Social urban planning is in high need to be considered as a vision not only for Paris, but many places and cities again. Inclusive societies also begin with a rather simple vision of togetherness putting people first.

Lost Objects
Project yourself into the future more than a hundred years from today, maybe even more than a thousand years from today. Some archaeologists will work on the planet earth to uncover the story behind the disappearance of the once very advanced species of homo erectus. They start drilling near some of the mystical sites of this civilization, the cities where mass celebrations were held called Olympic Games. These archaeologists use huge drilling machines to take samples at previous Olympic sites and uncover the remains of the thought to be modern civilizations on earth. Amongst all these samples they find all sorts of artifacts and layers left over. Plastics and metal structures appear in the samples as well as other forms of „artificializations“, transformations of earth’s principal „natural“ raw materials. The inhabitants of earth apparently lost or destroyed the planet‘s capabilities of CO2 storage and eventually became extinct. After fighting for survival on another planet the archeological expedition on earth saved this block of the remains of a doomed civilization. All this is pure science fiction, yet the specimen sample is exposed on the roof of the futuristic Fondation Louis Vuitton building near the Jardin d‘Acclimatation in Neuilly sur Seine. (Image of „Where the slaves live“ of Adrian Villar Rochas, 2014).

Olympic Village
The newly built Olympic Village in Seine Saint Denis consists of 82 buildings and offers 3000 appartements. With up-to-date cooling and heating technology from a nearby geothermal source the eco friendliness is assured as well. Inclusive accessibility allows for games for all and the needs of an aging society. The price level of renting apartments remains a difficult to solve issue as demand will exceed supply for years to come. Universal accessibility is a necessary precondition to host the Paralympic games also in 2024. Historic sites are notoriously difficult to adapt to aging societies and inclusive approaches. However, the adaptation takes a large step towards the realization of inclusiveness of extraordinary people. The care for environmental sustainability has been honored as well. The exhibition in the Museum of the city of Saint Denis at the outskirts of Paris demonstrates the significant size of the urban renewal project. The socioeconomic and environmental benefits are evident and will give a push towards this previously deprived suburb. A lot remains to be done but the new trajectory for urban development is already put on track. The oblivious factories and enterprises give way for urban renewal of housing for people with easy access to the Paris city centers as well. (Source of Image)

Olympic Visits
The Olympic Games 2024 in Paris are celebrated in the Stade de France and the Nautical Stadium which are both situated in nearby Saint Denis. There are fast trains and a Metro station to reach the venues.
Just one stop further you may visit the historic site of the Basilica St. Denis where most of the French royals were buried. A dive into history with the crypt of graves and splendid church windows will compensate for the additional effort to walk to the site. Quiet places are rare during the Olympic frenzy of cheering spectators and buses rushing sportspersons between venues and the newly built Olympic village. Security can feel intimidating at times but preventing bad situations is in the interest of everyone. The small historical center allows to start a visit off the busy calendar of events with a walk around the city center and the basilica.

Olympic Games 1924
100 years after the Olympic games were held in Paris, they will take place there again. Each time for the Olympic games new locations (Colombe) were built. For the 1924 games for example the first 50m swimming pool was built (Stade nautique des Tourelles, Porte des Lilas, Paris 20th), but a new one will host the 2024 competitions. However, the old pool will still serve in 2024 for the preparation of the competitions. The successors of Johnny Weissmuller (5 gold medals in swimming 1924) and star in many Hollywood films, the access to the stadium has become much more secured these days. In fact, security has turned into a crucial issue to host the “peaceful games”. In 1924 Germany was still not allowed to participate in the Olympic Games in Paris as the security of participants could not be guaranteed. Some competitions at the time turned rather violent as the example of the rugby competition, in which the converted American football team as rugby players had beaten the Fench rugby team.
The idea of alternative games has also been around for decades. There were already in the 1920s international competitions of worker associations (for example Frankfurt 1925) and the Olympic idea had to defend itself against the accusation of a Western countries’ domination. The set of disciplines in the competitions is always up for discussion and negotiations. We shall see interesting new additions in 2024, like break dance, to broaden the understanding of Olympic disciplines.
Even 100 years after Pierre de Coubertin steered the modern Olympic games, the idea is to bring more to the games than “Faster, higher, stronger”, notably to be together. To be together in a peaceful way remains the biggest challenge for humanity. The inclusive turn is, however, a challenge to host the games, particularly to host paralympic games in inner cities that have abundant barriers of access for impaired persons. Inclusiveness for many countries is another challenge that goes beyond the simple participation in the games, but consists in training facilities and equipment for many disciplines.
(Image: BNF Gallica)
Schinkel Winkel
Was wäre Berlin ohne Schinkel. Die Berlinerin sagt sogar, „in jedem Winkel steht ein Schinkel“. Das trifft das historische Berlin schon recht gut. Am Charlottenburger Schloss mit seinem schönen rechteckigen Parkanlagen, ganz nah, steht das sogenannte „Schinkel Palais“, genauer heißt es das Neuer Pavillon. Wenn Könige reisen ließen sie schon mal ganz gerne eine Kopie einer schönen Architektur in ihrem Park anfertigen. Das Vorbild eines italienischen Palazzos war hinreichend eindrucksvoll, um Schinkel mit einem Nachbau zu beauftragen. Viele rechte Winkel ließ der Schinkel mauern. Die verhältnismäßig kleinen Innenräume sind heute mit zeitgenössischen Bildern ausstaffiert. Da darf der Caspar David Friedrich natürlich nicht fehlen. 200 Jahre nach Beginn des Bauens am Schinkel Pavillon lässt sich noch recht gut sozusagen in die Epoche eintauchen. In einem etwas abgelegenen Winkel vom großen Schloss lässt sich somit die Zeitreise architektonisch Fortsetzen und mit weiteren Kunstgegenständen verknüpfen. Es ergibt sich so eine „dichte Beschreibung“ der Berlin prägenden Epoche.

Transparent Publishing
New technology pushes transparency of publishing, journalism and science to new levels. Through the hyperlink structure of texts it is easy to link back to the sources of a text. What used to be long lists of references at the end of a text or in footnotes has become directly accessible through weblinks. Only paywalls may or may not restrict the fast and easy access to original sources. In writing online, this is a major additional feature of publishing in the last few years. Some online journals allow this for quite some time now, but there are lots of printed versions that stick to the read and be stuck approach of publishing.
In teaching I have been an advocate of “read the original sources” as the basic source of inspiration for authors. The transparency of the thought process and the evidence provided in whatever form should be traceable. In publishing this transparency allows to exclude the copying of thoughts or unreflected referencing.
However, the task to check for the validity of weblinks and the updating is an additional task. 500+ blog entries with an average number of 2 weblinks per blog entry makes this a job of its own. Testing of 1000 weblinks is something you need a software or plugin which alerts you to “broken links”. The maintenance of a webpage, therefore, increases substantially as the content increases. Reorganisations of webpages make the follow-up of links sometimes quite hard. Projects like the general archives of the web and webpages are very important to ensure the transparency of publishing in the short, medium and long run. The archives of today look more like machine rooms than the splendid archives or libraries of the past and present.
Architecture Berlin
The annual exhibition of completed architecture projects in Berlin attracts people beyond the narrow circles of architects. You may take a walk through Berlin to view the actual realizations in 3D or 4D with people living, working or moving in these buildings. As social scientists we like talking or interviewing these people about their experiences. Urban planning and participation in urban development is important for city development in a democratic fashion. The combination of social, ecological, economic and technological concerns find compromises in urban renewal. The range of activities is remarkable. Living spaces have the most entries in the exhibition followed by offices and trade spaces. Education as well as public open spaces raise a lot of interest and funding currently. Climate change and adaptation to limited ecological resources ask for innovative solutions as well. Most projects in Berlin or by Berlin based architects deliver in this respect. The socio-ecological change needs a lot of actors to implement such changes and meet unprecedented challenges. The 60 projects represented for 2023 are the top of the iceberg but a lot remains to be accomplished in repairing old buildings and infrastructure as well. The DA! exhibition provides a democratic transparency of projects, which allows the public to learn about innovation and to make more informed judgments about what architecture can deliver for society.


Ideal City
Ideal City
Even beyond humans the issue of what constitutes the ideal city is a matter of historical as well as experimental significance. Science has recently uncovered a city like organization of habitats in the Amazon region (Link Science.org). The organization of the Greek city states has been the model for the development of democratic ideation. The Roman imperialism has thrived through the splendor of its cities and city lifestyle. No surprise that this continues to be a constant concern for humanity.
Rapid urbanization continues in Africa and Asia. Europe also struggles to keep pace with infrastructure development in every growing cities. Whereas the ideal city in the early Italian Renaissance was imagined without trees, we witness a renewed interest to bring back nature-like environments and architecture back into cities. Combining the best of 2 worlds seems possible. Redesigning inner cities remains a continuous challenge. It is much more than thinking about bricks and mortar. It is mostly about how we want to live, work and communicate together. Therefore, it concerns all of us. Paintings help us along in our ideation about where and how we want to live together. The linear views of the Renaissance appear hardly convenient after the experience of the 20th century.
(Image Gemäldegalerie Berlin, 2024-1, Raum XVIII, Ident Nr. 1615 “Ideal city” from ca 1490 attributed to Francesco di Giogio Martini and next to well-known ideal “Venus” painting by Sandro Botticelli 1490).
Flotow CH
Noch 20 Jahre nach seinem Tod wurde Friedrich von Flotow recht prominent aufgeführt. Im Stadt- und Aktien- Theater der Stadt St. Gallen stand seine Oper “Martha” an einem Mittwoch 26.4.1905 auf dem Programm (Anfang 8 Uhr präzis), gefolgt von Mozarts Zauberflöte 2 Tage später. Was für eine Konkurrenz. Das Plakat zur Aufführung ist in der Digitalen Bibliothek der Kunstbibliothek in Berlin anzusehen (Link).
Die Geschichte des Theaters in St. Gallen ist aus ökonomischen, gesellschaftlichen und architektonischen Gründen interessant. Das Tagblatt berichtete in 2007 über den Abriss der historischen Städte und den sehr verspäteten Neubau einer moderneren, größeren und wirtschaftlicheren Spielstätte. Damals zu Beginn des 20. Jahrhunderts schon standen populäre Werke wie die Martha und die Zauberflöte auf dem Spielplan. Die Aktionäre des Stadt- und Aktien- Theaters der Stadt St. Gallen haben wohl schon immer etwas mehr auf das Geld geschaut, auch wenn es um Kunst geht. Mehr Zuschauende und Zuhörende ist demokratisch und nebenbei gut für’s Geschäft. Der Abriss war beklagenswerter Weise im Jahr 1971. Ein Neubau an anderem Ort startete bereits 1968. Dieser Bau musste ebenfalls nach 40 Jahren Spielzeit grundsaniert oder abgerissen werden. Heute findet sich darin ein lebhaftes Programm mit Musicals als ausgezeichnetem Schwerpunkt und beispielsweise des Theaterstücks „Gott“ von Ferdinand von Schirach . Die Stadt und die Aktionäre sind wohl aus der finanziellen Verantwortung, aber das Kanton St.Gallen und der Lotteriefond sind eingesprungen. Bildquelle und Großansicht Kunstbibliothek SPK Berlin.
Infrastructure
For some societies and cities it is a continuous question of how much resources we should invest in infrastructure. Access to funding is a major concern. The calculation of the viability of the project needs careful examination and evaluation. Societies have very different kinds of preferences and, interestingly, about time horizons for their deliberations.
There are examples that have been built to last a century and lasted 2000 years. Other worst scenario examples are built for just one World Expo and torn down afterwards. The Eiffel tower is such an example of the latter kind, but it lasted longer than 100 years by now. We should be thinking more about time horizons as it remains an often overlooked part of investment in infrastructure. The oldest city in Germany has many buildings from the Roman occupation that still characterize the city’s architecture. This remains an important economic factor for the city of Trier as an attractive location for tourists throughout the year. Only wars or negligence may cause severe deterioration if infrastructure has been built with an emphasis on its lasting value. The narrow-minded investment in downhill skiing like in the Swiss Alps is at best expected to last 20 years. For trees to grow there again it will take 50+ years. Sustainable investment will be viable and vital in many respects. High interest rates force us to recalibrate our societal and private s again. Taking into account a longer time frame for investment we indirectly build infrastructure that should last longer. Moving beyond short-termism is necessary, particularly in the field of investment in infrastructure.

Nachhaltigkeitskonzept
Ein Nachhaltigkeitskonzept gehört zum Bauen mittlerweile wie das Gelbe zum Ei. Die Einreichungen zum Realisierungswettbewerb eines Portals für das Deutsche Technik Museum Berlin hatten entsprechende Anforderungen zu erfüllen. Für ein Technik Museum können dazu die Anforderungen schon etwas höher sein und die oft geforderte „Technologieoffenheit“ oder die Diskussion darüber zumindest andeuten. Der Anerkennungspreis ging an ein Konsortium für die Einreichung 1110, die eine klare Übersicht ihres Nachhaltigkeitskonzepts vorstellten (siehe Auszug Image unten, Foto aus der Ausstellung 2023-12). Nachwachsende Baustoffe gehören zum Repertoire. Gleichzeitig sollte die Erhaltung oder gar Förderung der Biodiversität Teil der nachhaltigen Konzeption sein. Innerstädtisch ist die Rückumwandlung der Versiegelung der Böden eine wichtige gesundheitsfördernde Bauweise. Kühlung in den aufgeheizten Städten ist durch Grünflächen und Beschattung zu erreichen. Tolle Architekten sind das, die den Mut aufbringen den Stachel in die Wunde zu legen. Die Anwohnenden und Besuchenden würden es den Verantwortlichen jahrzehntelang danken.
Das sind längst keine abgefahrenen grünen Ideen oder Träumereien mehr. Paris hat es schon längst vor gemacht. Ganz nah beim Eiffelturm ist das „Musée du Quai Branly – Jacques Chirac“ das als Neubau mit Garten vom konservativen Präsidenten Jacques Chirac eine grüne Naturoase mitten im Herzen Paris hat bauen lassen. Es ist immer noch eine Art Geheimtipp für Pariser in den zu warmen Sommermonaten. Berlin könnte wie mit der vom Pyramiden-Architekten Pei geplanten Eingangshalle vom Deutschen Historischen Museum mal wieder mit einem Nachhaltigkeitskonzept mit Paris gleichziehen. Gemeinsam können wir auch nachhaltig. Mit der vom Menschen und seiner Technik verursachten Erderwärmung haben die nachfolgenden Generationen noch lange genug zu kämpfen. Mehr Nachhaltigkeitskonzepte braucht die Technik. Das ist die wirkliche Herausforderung des 21. Jahrhunderts.
Technik Museum
Wir müssen die preisgekrönten Bauprojekte von Berlin nicht alle mögen. Die „schwangere Auster“ (Haus der Kulturen der Welt) war anfangs auch nicht beliebt, aber trotz Einsturz, haben wir sie lieben gelernt. Neben die Neue Nationalgalerie geplant von Mies van der Rohe und der Berliner Philharmonie von Hans Scharoun reiht sich bald die sogenannte „Scheune“. Ja ,eine multifunktionelle Verbindung der Museen ist im Bau. Nicht viel weiter werden wir vielleicht schon bald wieder eine kleine Erinnerung an die Berliner Mauer bestaunen können. Unweit vom Kulturforum stehen einige unverbundene Solitäre, die zusammen das Deutsche Technik Museum formen. Das ist bisher nur wenigen Touristen im Vorbeifahren auf der Ost-West-Achse in Berlin aufgefallen. Daher braucht es jetzt eine „instagram-able“, gemeinsame und verbindende Häuserfront, vielleicht so etwas wie die Pyramide (Pei-Bau) mitten im Louvre.
Die Einreichungen zum ausgeschriebene Realisierungswettbewerb (Link zu pdf-file) mit ziemlich konkreten (technischen) Vorgaben können noch in 2023-12 in einer kleinen Ausstellung eingesehen werden. Das gab es auch vorher schon anlässlich des Wettbewerbs für die Scheune. Wir hatten also keine großen Erwartungen, aber es hätte doch dieses Mal anders kommen können.
Der Blick auf die Pläne, Modelle und beschreibenden Texte hätte durchaus mit etwas Mut der Jury anders ausfallen können. So werden wir wohl mit dem 1. Preis des Realisierungsvorschlags leben lernen müssen. Mit etwas Abstand als virtueller Besucher im Modell kam mir direkt die Assoziation ich stehe vor einer Mauer. Diese ist aber im 21. Jahrhundert aus Holz und mit Solarzellen bestückt. Die „Deutschen Baumeister & Architekten“ erlauben auf ihrem Blog eine Vogelperspektive auf den prämierten Vorschlag. Die Pressemeldung der www.bim-berlin.de erläutert umfänglicher die Ausschreibung und die Begründung der Jury (Link).
Neben den 3 Preisen wurde noch 2 Anerkennungen mit Preisgeld ausgesprochen. Die Nr. 1110 imaginierte eine naturbetonte Umsetzung, die die Technik visuell in den Hintergrund verschiebt. Sie setzt einen wichtigen Kontrapunkt zur Technikverliebtheit in den Nachbargebäuden. Worum geht es bei der Technik? Richtig, letztlich um den Menschen und seine Lebenswelten. „Bionik“ beispielsweise ist Technik, die die Natur zu Rate gezogen hat. Das ist in der Forschung und Entwicklung von Technik ein riesengroßes Thema. Aber wir können dafür doch wieder ein eigenes Museum bauen. Bisweilen können wir und alte Computer und Telefone im Technik Museum ansehen. Klar Autos gibt es auch. Die Spannung Natur und Technik wird uns sicherlich noch einige Generationen lang beschäftigen.
(Image: Auszug aus Unterlage und Würdigung des Anerkennungspreises BIM, 2023)
Beer Temple
Brussels has recently opened a new attraction. A splendid temple-like building devoted to the unnamed God of beer-drinking. The renovation over several years of the centrally located “Bourse” has created a new popular attraction right in the centre of Brussels. From the outside the building reflects the classical temple architecture from Greek and Roman times. Although the building was for a long time the trading place of shares, obligation and currencies and thereby very closely linked to a country’s wealth and economic fate, it has found a new destination to represent the diverse and spirited culture of the people or peoples of Belgium through the lens of a beer glass. Of course, this is surrealism à la Magritte et al. (Museum and galleries within walking distance). The shifting fate after a financial crash to transform the “Stock Exchange” into a temple of surrealistic experiences is great idea and its realisation as popular move to transform the stock market into a temple to worship beer, beer drinking and conviviality a great idea. Without joking, the restaurant in the temple proposes good food that can be matched with a selection of 30+ kinds of Belgian beer (including 4 non-alcohol-containing beers).
Framing beer drinking culture differently from the image of beer and football hooligans is hard to achieve. Public images of beer drinking on television are all around us, anew every weekend. The Brussels stock exchange is a great place to reflect on shareholder versus stakeholder issues. Brussels has opted for a popular conversion of the building. Paris has gone for the upmarket more exclusive transformation of the previous stock exchange (Bourse commerciale) into a gallery of modern art from the private Pinault foundation.
The museum of beer in the upper ranks of the building in Brussels offers even tastings we were told. Well, beer drinking and stock trading (gambling) have both addictive potentials. Ruining yourself, the one or the other way, is equally disastrous not only for yourself but potentially others.
Know your limits is easier said than done. It is a behavioural phenomenon for individuals as well as regions or whole countries. With the apparent “Limits to Growth” for our planet or our ways to trade, even praying in the renewed beer temple is unlikely to solve the bitter-sweet issue. Perhaps discussions in the new Brussels temple will spur new coalitions and stimulate new ideas to overcome the locked-in political trading positions. Maybe the European Parliament should have a futuristic surreal session in the historic site. The only problem is, they would no longer want to return to their usual forum for debates.
Lebensverhältnisse
Wie weit sind wir mit der Angleichung der Lebensverhältnisse in Ost und West im Jahre 33 der Wiedervereinigung. Berlin liegt ja immer noch mitten im Osten der Republik. Da sollten sich im Osten der Stadt die Veränderungen seit der Wende bis zur Zeitenwende 2022 studieren lassen. Gebaut wurde viel. Das war, was viele vergessen haben, für Personen, die in der Nähe wohnen oft eine ziemliche Belastung. Wenn die Gebäude oder Infrastruktur dann endlich errichtet sind, denken wir, jetzt kehrt der Alltag wieder ein. Doch das ist oft weit gefehlt. Nehmen wir mal als Beispiel den neuen Bahnhof Gesundbrunnen in Berlin Nord. Alles neu, ein paar undichte Stellen am Dach, sonst funktioniert der Umsteigebahnhof recht reibungslos. Ein großes Einkaufszentrum in der Nähe mit den üblichen großen Handelsketten. Im Bahnhof wird der Reisende mit McDonalds Fastfood und einem Biomarkt empfangen. Das sieht eher nach Westen aus. Es gibt sogar keine Currywurst mehr in der Bahnhofshalle. Kulturschock für einige. Dazu noch die Abfahrten mit internationaler Destination jenseits der sowjetischen Großfamilie der kommunistisch verbundenen Länder.
Fotos können diese Eindrücke oft besser verdeutlichen als viel Text. Daher die kleine Bildergalerie mit Eindrücken aus dem Oktober 2023 nahe Berlin Gesundbrunnen. Das Einigungsdenkmal aus dem Jahr 1967 steht auf dem Flakturm im Park direkt am Bahnhof. Es bleibt noch viel zu tun bis die Teile wirklich zusammengewachsen sind und vergleichbare Lebensverhältnisse erreicht sind.
Luftschloss
Im K21 der Kunstsammlung Nordrhein-Westfalen ist ein Luftschloss eingebaut worden. Es ist das einzige mir bekannte Luftschloss, das für alle Besuchenden begehbar und fühlbar ist. In wahrhaft luftiger Höhe von 25+ Metern über der Eingangshalle der Kunsthalle K21 und zentral unter der gläsernen Dachkuppel platziert, lässt sich mal so richtig abhängen. Nahezu schwebend kann die weiträumige Installation von Tomás Saraceno erklommen werden. Die Schritte und wippenden Bewegungen der anderen BesucherInnen lassen sich unvermittelt ebenfalls erspüren. Du bist nicht allein, im originären Sinne des Wortes. Die buchstäbliche Vernetzung mit allen anderen Personen werden durch Schwingungen des Netzes zu anderen Kletternden oder Chillenden übertragen. Eine unmittelbar erlebbare Erfahrung der Verbundenheit mit unbekannten, anderen Menschen stellt sich ein. Die Verbundenheit innerhalb einer Gesellschaft wird eindringlich verdeutlicht. Die Angst, durch die Höhe verursacht, weicht rasch der freudigen Erfahrung der Schwebung und der kindlichen Erfahrung der Suspension. Nahezu freischwebend in der Luft, im Orbit erlebt jede/r sein eigenes Luftschloss inmitten von transparenten Kugeln, die wie Planeten wirken. Gleichsam real, aber dennoch imaginär durchwandern wir die Installation immer im Bewusstsein, dass andere um uns sind, die unsere Schritte, Möglichkeiten und Haltungen mit beeinflussen. Vom Luftschloss träumen oder im Luftschloss träumen, beides ist dort machbar.
CO2 freundlich lässt sich die Erfahrung in der APP Aerocene fortsetzen. Der für unser Wetter so bedeutsame Jetstream wird zur imaginären Flugerfahrung genutzt und mit recht aktuellen Daten gespeist. Die Verbindung zu „Earth and Space Sciences“ ermöglicht die Einbettung der sozialen Erfahrung in einen noch weiteren Kontext.
Die eigenen 4 Wände sind die Grenze. Das galt schon früher nicht. Weit darüber hinaus lassen sich neue Möglichkeiten erschließen, die nicht umweltbelastend sind. Selbst die Reichstagskuppel in Berlin sehe ich plötzlich mit ganz anderen Augen. Mehr als Möglichkeitsraum, statt der traurigen Vergangenheit und der zerstrittenen Gegenwart. Was wäre die Kunst, wenn sie nicht zum Träumen anregen würde.
Heritage Day
A heritage is something you might carry with you, no matter whether you like it or not. In architecture this is most vivid and visible. On the 2023 heritage day i Brussels many monuments and institutions open their prestigious buildings to the public and show off their “silver” or gold plated walls and ceilings. Just next to Royal Palace is the home of princesses and princes now inhabited by the Royal Academy. Even the stables have been packed with books now, all in all 19 km of shelves packed with papers of all sorts. Great that many academics and academies have shifted to electronic publishing so that the CO2 footprint of science and art can finally be reduced as well.
Of course, we adore the old postcards to learn about historical trajectories of architecture and specific buildings. The collection is a great collective memory.




Denkmal
Jedes Jahr gibt es die hervorragende Möglichkeit am Tag des offenen Denkmals, historisch wertvolle Gebäude und Anlagen zu besichtigen. An heißen Tagen, wie in 2023, sind Altbauten oder klimatisierte Räumlichkeiten besonders bevorzugt. Die Philharmonie hat erneut die Möglichkeit geboten ohne langwierige Voranmeldung, spontan vorbeizukommen und an einer Führung teilzunehmen. Das von Hans Scharoun entworfene Gebäude samt seiner akustischen Spitzfindigkeiten bietet spannende Einblicke. Stille, Sound und Noise in einem Gebäude und Konzertsaal will sorgfältig geplant sein. Kompromisse mit verfügbaren finanziellen Mitteln und Planungsverfahren gehören zur baulichen Realisierung, wie eventuell zu den Kompositionen, die dort aufgeführt werden. Heute erscheint uns die gelungene Akustik als historischer Meilenstein. Ebenso die Form des Konzertsaals mit Plätzen hinter dem Orchester, aber auf das Gesicht der Dirigierenden bietet einzigartige Einblicke in die Praxis der Aufführung. Für 10 Minuten war selbst bei der Führung zufällig ein Zuschauen bei der Generalprobe der Berliner Philharmoniker von weitem erlaubt. Komponist und Dirigent Jörg Widmann probte noch Ausschnitte aus der am Abend aufzuführenden Werke. Selbst hoch unter dem Dach der Philharmonie konnten die leisen Ansagen des Dirigenten leicht verstanden werden. Akustische Meisterleistung der Architekten. Wer hätte gedacht, dass Anfang der 60er Jahre eine solche Glanzleistung möglich war, im Berlin, das gerade erst durch die Mauer getrennt werden sollte und dann geteilt überleben musste.
