More sensors

The technical games that have largely replaced the traditional electrical train and cars of the boomers and older generations shift towards robotics. This has the touch of more future orientation and fun for the young used to gadgets, automation and the beginnings of AI. Therefore, the robots of our children and the ones they assemble in technical games include more sensors. Infrared emission and reception have been present already for some years, but the capture, use and application of sound in children’s games is a bit more recent. In order to assess and understand the far reaching potential of these additional sensors in our homes and environments it is essential to raise awareness through technical games and own experiences or experiments. Educational games are a useful addition to the repertoire of learning for younger generations. Accompanied learning is more likely to keep young people interested in technology and raise awareness for the potential of intrusion into privacy of technology as well. The robots will be more and more part of our daily lives. A better understanding of limitations and potentials will be necessary for all citizens in the 21st century.

Labour Day Berlin 2025

In 2025 Labour Day Parade in Berlin started again on Karl-Marx-Allee to the destination at the “Rotes Rathaus”, the red brick City Hall of Berlin. The slogan: “Mach dich stark mit uns” (engl. empower yourself with us) refers to the building up of force by members of the trade union movement in growing bigger again. Solidarity in crisis is currently tested again in each collective bargaining and negotiations at the local, sectoral, regional, national and European level. However, on the 1st of May the parade obviously has the political part with the speeches, but also the family party atmosphere towards the end at the Neptun fountain at Alexanderplatz. Large crowds come out in Berlin and the organizers of the DGB and the police do a great job to ensure a safe and enjoyable demonstration in the heart of Berlin. More impressions on the mobilizing event here. Images from Berlin Labour Day 2025.

Robot assistant

Adjustment processes on the labour market take their time. This means that care workers are in short supply in most countries of the OECD. Engineers as well. There are so many robots, care robots I mean, still to develop that the shortage of engineers give little hope that we shall have affordable solutions in this area for the next few years. The issue is mainly about integrating and enhancing already existing solutions. If you are a mechanical engineer you can put together motorised mechanical pieces, small motorised electric devices and, for example, small infrared emitting and receiving devises.
All this is child’s play these days (see image below). The assembling of a small Robot assistant that follows movements or can escape from a small labyrinth makes such simple structures transparent for learners and users. There is nothing magical about it, just adding together small pieces and the electronic devices to steer the movements. The learning tool from KOSMOS has been on the market for 5 years. It is a helpful device to explain basics through hands-on experience. The limits of robotics equally become more evident. Our own health and safety is concerned with larger devices cohabiting with us. A robot assistant can take on easy tasks like to follow me through my living space in old age carrying a mobile phone, keys or an emergency device. More sophisticated tasks need more sensors and AI to train the most needed and best routines. For many years this needs our input and our control as well as supervision of such devices. Most robots will operate as assistants with us in the driving seat or the boss.
This is yet another element of the “all electric society“. We are moving towards the use of more electronics assisting us from year to year.

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).

Marx Home

The home of an influential philosopher, economist and political scientist is not easily presented like a home of a musician, a composer or an author. However, the home of Karl Marx in Trier on the Moselle river succeeds to present the biographical links of growing up in a historic city, the bourgeois upbringing of the young Marx and his formation as an independent and even revolutionary thinker of the economy and society. In 2025 the home is a museum supported by the Friedrich Ebert Foudation with a great online guide and access to additional scientific material. For authors like Karl Marx it is always of interest to follow not only the origin and evolution of the thought process, but also the shifts in the reception of his writings by subsequent generations. This part of the exhibition and an audio guide (downloadable as App).

In 2025 with an apparently ruthless capitalism at work in the biggest economy of the globe, the reminder that the economy is best to be understood as a political economy, which focuses on self-interest and profitable business deals, we find in Karl Marx still a worthwhile reminder of economic development even in the 21st century. The note-taking and studies in Exile in London are well documented in the tiny home and museum. Studying the misery of exploitation in supply chains and international commerce remains a topic of continuing interest as well. 

Liszt home

In Budapest we can visit one of the longer living places of Franz Liszt or Ferenc Liszt as some Hungarians would insist to call him. The Beethoven trained Carl Czerny offered piano and music classes free of charge to the young Franz Liszt in Vienna at the age of 11. In the biography by Klára Hamburger she describes the Paris years of Liszt from 1823 until 1839 as the most important ones for the pianist and particularly for his later compositions. Born in Hungary, the son of 2 Austrian parents he was trained in Paris by amongst others the Czech professor of the Conservatoire de Paris Antonin Reicha just like Chopin, Flotow or Offenbach. Writing an opera was the “must do” for a composer who aimed for the highest possible career at the time. In a letter to George Sand, Liszt (published 1937) complained already about the social status of musicians in society as servants to the higher ranks of society. Similar to Ravel many years later Liszt was rejected as official scholar by the Conservatoire de Musique and his wish to marry a daughter of noble decent was rejected early in his career. Such experiences probably contributed to his leaning towards the romantic form of expressions in music during most of his compositions. Literature, paintings of the French romantic period and the traveling artist “voyages et pèlerinages” became influential in his creative process. The competition between composers must have been fierce at the time and despite ample opportunities to perform in public and private venues making a living from music wasn’t always easy at the beginning. More than 100 years after his death his compositions are still a challenge for all pianists and the Hungarian Rhapsodies probably his greatest homage to his early childhood.

Beethoven Home

The home of Beethoven in Bonn is nicely preserved and full of objects related to his life and his creative work. For the musician and composer musical instruments have accompanied him throughout his life. The visit of his home of birth offers a chance to dive into the extraordinary accomplishments of this great figure of the late 18th and early 19th century. His 9th symphony is strong as ever and the European anthem has just more than 200 years since the first performance now. The visit of the museum is still the highlight of Bonn and the App of the Beethoven House offers unique insights into and listening of his manifold compositions. Handwritten notes and a pocketbook of preparations for the symphony demonstrate the all encompassing nature of music for Beethoven. From romantic letters to the romantic music pieces, the museum has it all. Even it is a rather tiny house from the outside the inner life is as huge as it can be. It is advisable to take at least half a day for the visit much more than you would usually take for visit of a museum. The link between the biographical information and listening to linked musical pieces with a chronological context are a unique experience. This spurs the interest to listen or listen again to some of the romantic masterpieces. The App is great also to listen directly to some of the music.

Sovereignty of People

In France the judiciary has made an influential decision to ban a politician from the possibility to be elected after conviction of fraud. This is just what is to be expected from the 3rd power in the organization of a democratic state. It is surprising that there was a political debate about a person convicted for a crime to be eligible for public office. Several eminent scholars published columns in major newspapers to support the judicial decision. Pierre Rosanvallon focused both on the justification of the verdict and the constitutional role attributed to the judiciary to operate as a kind of memory of the “general will of the people”, the ultimate sovereign. In the struggle of power within a state the judiciary defends individual rights as well as moderates between the executive and the legislative branch. In the theory of democracy this creates a double bind situation in which the individual has a right to be defended against the state and individuals who ask for judgment of cases one against another one. Eric Halphen has also argued in favor of the often neglected role of the judiciary to stand up for the “general interest”, a notion which is not easy to define without historical references in each country and its historical trajectory of democracy. The short debate about the role of the judiciary has strengthened the defensive capacity of the French democracy. Other, even mature democracies may turn their eyes on the decision of the judges involved not to shun away from unpopular decisions. The independence of the judiciary is part of the sovereignty of the people and non-negotiable part of it.

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.

Own Production

The 21st century has seen many innovations. Solar energy has been around for at least 3 decades now, but the wide spread application and adoption of it through consumers has taken quite a while. Nowadays you can buy a reasonably priced solar panel in your local shop selling gardening tools and home appliances. Solar panels have moved from a niche product to become an ordinary home enhancement product. Previously, the production of energy was highly regulated and restricted to business activities. Hence as producer and consumer of your own energy you became a “prosumer” of energy. Just refrain from selling the energy to your neighbors and you will be happy monitoring your own energy production and your energy consumption throughout the day as well. Suddenly, you might make a few behavioral adjustments to your daily routine. Throughout the day when the sun is shining bright you start to think of what kind of energy consumption you might want to switch on at the time. Charging mobile phones, cooking meals and washing are the obvious candidates that do the trick. Charging a battery of a bicycle(s) is also a good idea. The excursion of the evening or cycling to work the next few days is feasible with this as well. There is a slight danger to check the energy production frequently to optimize the return on your investment. In this case it might be expedient to invest also in a battery to store the energy  for a longer time. No stress for consuming your nuggets, but initial investment costs are substantially higher, albeit prices for batteries have come down significantly in the last few months. “Prosit prosumers”.