technology – Schoemann

07/04/202606/04/2026

Time dependent failure

The collection of failures has an ambiguous relationship with time. Some innovations that are celebrated at a specific point in time shall be considered failures at some later point in time. The Musée des Arts et Metiers has an early version of a solar panel on display dating back to 1996 (see image below, Photowatt 1996). This example reflects the cycles of public as well as expert opinions about technical innovations that either are en vogue or at disgrace. Ecological, design and economic considerations enter into the consideration of what constitutes a failure. Claims of European energy sovereignty may additionally enter into the failure equation. The time horizon over which energy savings are generated is yet another element in the judgement. The more general perspective should take sustainability and depreciation of quality of an object into consideration. The Flops exhibition just scratches a bit on the surface of an important and rather complex issue of the relationship of society, technology and innovation. Surely, there is more to come in terms of flops and failures, and this is okay in most cases.

05/04/202604/04/2026

Fail collection

The not-so-social media have been flooded with collections of failures. The success of this short video format is mostly due to its entertainment value. A quick laugh is guaranteed if a certain intention is turned into its opposite. You want to take a witty shortcut but effectively you end up with a lengthy or painful lesson of the opposite. The fail collection of the CNAM in Paris has a similar attraction. The “Flops” exhibition in 2026 exposes a larger number of technical innovations that either did not reach the mass markets or that were “flawed good ideas”. In fact to put an innovative idea or design into practice it takes a lot in addition to engineering intelligence and professional competence and experience. The collection of documentary evidence invites us to explore the topic of what constitutes a failure and why failure is an intrinsic part of the creative process of trial and error, fail, fail again and fail better. (Image Musée Arts et Metiers 2026).

04/04/202603/04/2026

Electricity generation

On a global scale, electricity generation based on wind and solar has been growing quite fast since the year 2010-2024. Wind and solar have outpaced nuclear energy production as well as the stagnant sector of water based energy production. The Global Electricity Review by EMBER provides the statistical evidence for this evolution in 2025.
The interesting evolution arises mainly because countries with a lower level of GDP have invested heavily in solar and wind energy as this form of decentralized energy production does not need heavy investments in network infrastructure. Countries with larger population growth can keep up with electricity generation according to local needs. Local production and consumption become a key in strategies of local development. The finding that households in low-income countries use on average only 1 kWh per day is an amount that 2 small solar panels can already cater for (example image below).
Countries next to the equator have relatively constant days of 12 hours daylight across a whole year. The feasibility of no-carbon sustainable energy production is driving global growth in this sector.

02/04/202601/04/2026

Fan of fan

The fan and the French version of it called “eventail” served thousands of ladies across history. Ventilation is key, even in times of air conditioning being all around us. Instead of bulky electric pocket fay, the eventail is surely going to make a splendid comeback. This utensil serves both as cooling device as well as fashionable accessories. The craft of making one has almost been forgotten, but the Musée de la Mode preserves some of the finest examples of the tiny heroes of global warming.

31/03/202630/03/2026

AI and Social sycophancy

The study by Myra Chen et al. (2026) on the practical use of various AI tools demonstrates the risks of social sycophancy of these models. Maybe a large part of the initial success of AI models exactly due to sycophancy i. e. the people-pleasing, flattering and affirmative bias of these models. If users of AI just receive predominantly confirmations and reassurance of their intended behavior, they shall be less inclined to accept more outright criticism in normal interactions with real people. The more you receive flattering responses by some people, the more likely they have used AI in preparing themselves for a response. The rigorous psychological tests applied in the paper can in fact explain a large part of why we are likely to become addicted to the always flattering responses from the current versions of AI. Only the scientists will consciously seek for disapproval of their beliefs and keep challenging the AI-provided returns. Even using different AI models did not change the affirmation bias. Maybe programming a “grumpy old professor AI” as an alternative could do the trick. I shall have to think seriously about this as the alternative to current models. The critical AI is most likely not a viable business opportunity, but it might survive many other sycophantic AI unicorns. (Image: waist coat 18th century, Paris exhibit Musée de la mode 2026).

29/03/202627/03/2026

Master AI

In 2025 the exhibition “Cartooning for Peace” at the BNF in Paris had already an exhibit authored by Stellina Chen from Taiwan, which summarized the evolution and projected the consequences of an all encompassing AI revolution (Image below taken at exhibition 2025 BNF). Currently we exercise ourselves in using various forms of AI or learn how to program them ourselves. It is our aim to master the new technology so it becomes a helpful tool. However, there are already many instances where it is no longer us mastering AI, but the AI has turned around the table and has started to master us. The applications of AI have entered our work tasks, tries and frequently succeeds in improvements of our routines and processes.
In private life a similar revolution is happening, when AI offers advice, which is hard not to follow and very convincing most of the time. Since getting involved in a conversion with AI tests your logic and debating competences, we find ourselves more and more in situations where AI is telling us what to do in the best of a convincing manner. After centuries of humanity to find freedom from oppression and the freedom to what we want ourselves, we seem to be ready to hand over control to AI. We are just like toddlers in this respect, willing or obliged to follow our master.

21/03/202620/03/2026

Quantum battery

The first prototype of a Quantum battery has been successfully tested. The Commonwealth Scientific and Industrial Research Organisation CSIRO with corresponding author James Q. Quach published the paper on the “quantum battery tuned for strong light–matter coupling” (Kieran Hymas et al. 2026) open access. Although there have been close to 20 papers on the theory behind quantum charging already, the demonstration as a proof of concept (in business terminology) has been missing so far. The superextensive charging with photons builds upon “a laser pump pulse with bandwidth ~31 nm and resonant with the LP branch induces excitations in the quantum battery” (Kieran Hymas et al. 2026 p.3). Since batteries need not only be charged, but also discharged in a safe and fast way, the prototype demonstrated also this additional functionality.
This is a huge step towards the feasibility of the “All electric society” as the efficient storage which includes fast charging and discharging beyond storage have been a bottleneck in the wider adoption of the “All electric society”.
(Image: old fashioned NiMH battery charging at home)

19/03/202617/03/2026

Super fast spin

For all players of table tennis, tennis, pocket billards or football, the secrets of achieving a fast spin on the ball is interesting. The bouncing of a ball changes inherent with the speed of the spin.
The maths and physics of such movements are well understood, the empirical phenomenon of super fast spin still draws large audiences. The earth is typically spinning about once every 24 hours, hardly noticeable for us living on it. Seen from space this changes already and it makes for marvellous views on the blue planet. The NSF Vera C. Rubin project has made available the first few images of super fast spinning asteroids. The 2025 MN 45 asteroid is such a fast spinning one. The asteroid has a rotation period of about 2 minutes only, with a size of about 700 meters as diameter.
Collisions with such a super fast spinning asteroid, made out of very hard material as otherwise it would have disintegrated already, is likely to cause substantial damage in space. It is not threatening us, but satellites or rockets on their way to planet Mars in space would certainly be knocked out due to any collision. For the time being, we may just admire the splendid images of space, spins and the occasional collisions. (Image: Link to source NSF Vera Rubin 2026, NSF-DOE Vera C. Rubin Observatory/NOIRLab/SLAC/AURA)

13/03/202613/03/2026

Bob the AI-enhanced builder

Most kids today and GenZ youth have come across the TV-series “Bob the builder”. Baby boomer parents have been worried about the work ethos which might be the hidden agenda of the videos. In 2026 we can now draft a new episode called “Bob the AI-builder”. Many episodes could be re-written when Bob and his team have access and get training with AI toolboxes. The study published by ActivTrak (2026-3-11) reports that companies make on average use of 7+ different AI-tools, up from 2 in 2023. This constitutes a hint that complexity at work is increasing as each tool has to be managed and the boundaries of its use need to be respected. As most search engines offer an AI-short cut to search it is not surprising that now 80% of the workforce use some form of AI in 2026. The productivity increases in quantitative terms as more output can be achieved in the same time or slightly shorter work days. However, workload is moved even more to weekends now.
The upcoming challenge through AI-tools is the reduced “the AI users’ focus time”, which suffered 9% compared to non-users. For Bob the AI-enhanced builder this means “AI is being used as an additional productivity layer, not a substitute for existing work”. The overall workload is not reduced by AI. The intensity of work increased between 2023-2025.
There is still a puzzle in the data. Multitasking (+12%) and collaboration (+34%) both increased, but the duration of an average focused session and focus efficiency dropped. The challenges for employees increase. Handling simultaneous processes and keeping an open mind to collaboration are key competences for Bob the AI-enhanced builder.
(Image: LEGO-shop in Paris 2026-2)

12/03/202611/03/2026

Fukushima Commemoration

The date of 2021-3-11 is marked by an event that according to science should not have been realistically expected by anybody. The probability of a meltdown of a nuclear reactor due to an earthquake and tsunami in Fukushima were simply beyond a “normal” statistical probability. And yet, it did happen. The consequences are still visible and the nuclear waste has to be dumped somewhere and lots of contaminated water has to be dealt with as well. 90.000 persons had to evacuate the area. Many of them have no interest in returning to the devastated area. Moreover, the psychological damage to the perceived security causes continuous trauma. The psychiatrist Ryoji Arizuka, interviewed for the French newspaper Liberation, reports that victims find it easier to cope with the “natural disasters” of the exceptional earthquake (9.0 on Richter scale) and the tsunami than with the man-made disaster of the meltdown of the nuclear reactor. Whereas the former disasters can be attributed to external forces, the latter example of a the explosion of the reactor is due to a failure to estimate the risk (technical, human and political) of an explosion properly by engineers and subsequently by politicians.
The commemoration of Fukushima by its governor Masao Uchibori in 2026 is a reminder that more risky technological progress comes potentially with higher costs to society as well. These “risks for societies” will have to carried by some selected regions. Solidarity with people who carry disproportionate amounts of risk should be “addressed” right from the beginning of the decision to use a risky technology, as an attempt to “internalise” the likely costs to society, eventually. Perceived cheap technology turns out to be very costly using different probabilities of associated even unlikely risks. (Image: Global stone project).

11/03/202610/03/2026

Retrieval-augmented AI

As a scientist it is in our DNA to cite other scholar’s work with precision. As a university professor your job is to check the quality of citations, kinds of citations and accuracy as a regular part of your job, also as supervisor of junior scientists. In 2026, the use of up-to-date AI (Asai et al. 2026, OpenScholar AI) allows not only to summarise large bodies of scientific literature, but also to cite references and even quotes from the paper(s). Literature reviews used to take months to compile. AI can speed up the process enormously. The citations can be ordered following an own logic or an AI-suggested logic.
It has become much harder to evaluate the degree of innovation of a candidate for a scientific degree. Tools like retrieval-augmented Language Models enhance the scientific potential of generative AI since they extract more or less short citations directly from the original source just next to the original based on a simple query of author and approximate subject (see screenshot below of own previous publication).
The good news is: (1) referral to previous research and citations should become faster with improved tools for verification. (2) You will find papers written by yourself that you no longer have in your own archive.
The bad news is: (1)self-citations of researchers might become more feasible, although this problem is conditional on a researcher’s seniority. (2) so far, Language models prioritise specific languages (although not necessarily) and differentiate names with “foreign” characters e.g. “ö,ä,é” and do not double check “close neighbours” of them like “o, oe, a, ae, ue, e, ê, è” leading to a “character based normalisation bias“.
It is, of course, rather easy to point out deficiencies of the search, sorting and inclusion algorithm if you know already about the complete picture of a data set.

08/03/202606/03/2026

Visitor retention

For media, platforms, stores, webpages as well as blogs one of the more interesting measures about popularity or spread consists in visitor retention. It is a bit like counting the pages of a book you have read, which you have at home, or have you read them all? The zapping across radio or television channels is also an indicator or unsuccessful retention of viewers. Webpages, online stores or the blog entries here are all more or less directly trying to increase the retention of visitors on the same page. Maybe this can be considered as one of the first steps into a (not-so) social media addiction. The IT-sector offers tools for this.
On this webpage “schoemann.org” we make use of “linkz.ai” a ready-made plug-in that provides overviews on the links entered on this webpage, mainly to avoid that visitors have many additional tabs opened in their browser, do not jump off to follow up the links, but rather stay on the same webpage and “scroll on”. At the same time this means referrals from other webpages, which use the same techniques, will be less frequent.
The visitor retention tool used on this webpage is besides the original content 😉 “linkz.ai”. This tool scans other blog entries and links, and proposes the image on the previewed link at the top of the blog preview, for example. Basic weekly frequencies on previews are provided, which might guide a strategy to increase visitor retention, if that is one of your objectives.
The current discussion of addictive potential of social media platforms could be measured through such tools as well and has probably been used already for years with even more sophistication and direct feedback loops into the algorithms.
(Image: basic own statistics Linkz.ai use 2026-2-28)

07/03/202606/03/2026

Fossil costs

On 2026-3-5 it has become sufficiently clear that the USA and Israel attacks to topple the terror regime in Iran have repercussions across the world markets of fossil fuels. 1973 and 1979 had told us already the lesson that a reliance on fossil fuels like oil and gas, which is produced in only a small number of countries, can disrupt energy supplies drastically. 50 years later we are much less vulnerable to supply shocks due to the stronger reliance on renewable energy sources. The supply shortages are only likely to happen, but energy suppliers are fast to cash in on these expected shortages. Prove of evidence that energy markets are driven more by expectations than actual availability of fuel stocks.
The advertisement of a Belgian recycling company “Powered by sunshine, driven by electricity” is a perfect summary of how to deal with shortages of fossil fuels (MCA recycling in Brussels, Image: former Brussels stock exchange).

05/03/202604/03/2026

Defense strategies

Technological developments of drones, aircrafts, rockets and satellites take a lot of time. In order to produce not only prototypes, but ready-to-use weapons, it needs advanced engineering competencies and capacities as well. The arrival of hypersonic rockets, that fly at the speed of 5 Mach necessitate a rethinking of defense strategies to be able to react in ever shorter time spells to external threats. The European Defence Fund intends to spend almost 3 billion € over 7 years to prepare our defense strategies in the EU for the next generation of lethal weapons.
On 2026-3-4 the Iran-regime made use of such a fast rocket, but it was possible to intercept its flight just in time by NATO-allies. Yes, unfortunately “rocket science” is back on the research agenda. In fact, this research has been ongoing across the world, just a bit more below the public radar.
Missions to the moon or mars have been intensified in recent years. This is not surprising or spectacular fact. For some it is surprising, that the number of countries (for example India) which are active in rocket science is increasing and spreading further across the globe. The multipolarity of the international political arena seems more evident in 2026-3.

01/03/202628/02/2026

Construction Deconstruction

The application of dialectic thinking invites us to explore the idea of construction at the same time as destruction. The sequential form reminds us that on most construction, deconstruction will follow eventually. This is obvious in case of the life cycle of human bodies or the animal world. On a more aggregate level, empires have been constructed and sometimes centuries later, they have been deconstructed again. Deconstruction may also take form transformation. In such cases major features remain the same, but the new entity is sufficiently transformed to give it a new name. Often it might also be a kind of synthesis of previous generations or cycles of construction and deconstruction. We enter potentially into the field of genetic evolution or genetic engineering. In any case, dialectic thinking is present in many fields of studies. Well worth to explore the potentials as well as limitations of the basic scientific concept.

27/02/202626/02/2026

Chess without Queen

It is perfectly possible to play chess without a player having a queen on the chessboard. This certainly gives an advantage to the opponent, but in case of a lack of an adequate strategy or being overly confident to win, the advantage can be compensated by the party who does not have a queen in the arsenal of weapons. The paper by Lissner & Warden (2026, p.109) on the new way of war following the Russian invasion of Ukraine in 2022-2-24 states that “nuclear weapons have not given Moscow the coercive leverage many assumed they would.” Nuclear weapons hit the civilian population without differentiation the hardest, just as much as taking nuclear power plants as strategic war targets would do. What we have seen so far in Russia’s strategy is to use civil infrastructures of water and heating as targets within Ukraine as part of a kind of psychological warfare against the Ukrainian civil population. The more committed Ukrainian soldiers, even with the lack of a nuclear weapon, seem to hold the line against the Russian aggressor that so far has restrained from the nuclear option, if the Tschernobyl disaster has not been a precursor of a weaponisation of nuclear infrastructure.

26/02/202626/02/2026

Future Conflicts

Since 2014-2-27 Russia has occupied the Crimean peninsula. This invasion had started with an undercover mission of unmarked soldiers to take full control of Crimea about 3 weeks later. Russia did not officially declare a war, although the intentions were identical to a land grabbing war. The western world did not react much to this violation of international law. Apparently, this contributed to the next cynical “special operation” by the Russian army to fully invade Ukraine on 2022-2-24 in a failed “Blitzkrieg”, a rapid invasion, which attempted and failed to annex the whole of Ukraine. According to Lissner & Warden (2026) the Russian invasion of Ukraine bears 4 lessons for future conflicts: (1) the risk of using nuclear weapons is real, (2) in addition to nuclear options, prolonged and very destructive conventional wars remain an option, (3) escalation thresholds emerge and evolve over the duration of the conflict, (4) allies and partners in war keep adjusting their risk tolerance as well as escalation options. The authors argue from a US perspective and add a practical comment: “The USA cannot go this alone, but should coordinate closely with allies and partners in time before another conflict arises. Multilateralism seems a valid option and even more so as we move into a multipolar power play on the global scale propelled by AI.
(Image: Musée Orsay, Paris – Archer, Bogenspannende)

24/02/202623/02/2026

Short circuit electrification

The electrification of the automotive industries is well under way. However, there is still the resistance of a few warriors from a village called “Gaulle” that fight the imperial forces that dominate these markets. The abundance of cars with batteries and electricity-based traction keeps growing, More utility vehicles shift over to this technology as well. With India and China making significant shifts in this direction, the market has made a significant technological shift until the beginning of 2026. The share of hybrid or solely electric power in cars has risen sharply, but a small segment (10% of diesel engines seems to survive or is only slowly petering out in the coming decade. The publication by Béla Galgóczi (editor) demonstrates the challenges this poses to the companies, their employees and the automotive sector as a whole, as it comprises a large amount of employment and technologies in the traditional supply chain as well. The need for a substantial and costly shift has started, but the downsizing of companies, as electric cars need far fewer pieces than conventional ones, could offer an opportunity, if the skilled employees can be converted to other productive use.
A single sector study offers a lot of “deep” insights into a sector, but the opportunities and openings in other not to distant sectors tend to be overlooked. The European sovereignty in the area of military, standardised technology, which is also still based on many precision and metal components might come as a rescue not only to Ukraine, but to Europe as a whole.

11/02/202610/02/2026

Illness duration

The focus in medical analyses is primarily put on the diagnosis of illness. This is the best strategy, if the onset of an illness has a precise beginning and ending. In all processes, where either the beginning and/or the ending is less well-defined as precise point in time, the progression, as phase in or phase out of illness, is also of substantive interest. A duration analysis can inform about the potential presence of a co-morbidity in case, for example, an infection continues beyond the normally expected duration.
Financial pressures in the medical systems makes it necessary to release patients in a timely fashion. Therefore, has become more important to monitor patients even after release from hospital. Digital devices can support such a monitoring.
The study by Josi Levi and co-authors (2026) shows that smartphones or just the monitoring of the number of steps of patient offers a rather reliable indicator on the health status towards the end. The information that a patient has recovered to the normal level of activities as before the onset of the illness works quite well as indicator of recovery. A more precise measure of the duration of an illness is important for patients, care persons, the health system overall. The duration is one of the cost-intensive factors of any illness and it is surprising how little we know about the issue of time and duration in many health processes.

10/02/202609/02/2026

Regulation and bureaucracy

Economists will celebrate 55 years of the theory of regulation pioneered by George Stigler, which was published in 1971 in 2026. The basic question asked at the time and today is: why do we have regulation? The pubic choice and political economy answer of Stigler (1971) and many scholars after him, is that the industry of a specific sector will acquire the regulation or the public interest in this regulation and, subsequently, the industry will design and operate it to its benefits. At least, this is in a nutshell my summary of the literature inspired by Sam Peltzman (2021, p.20). If we add to this the perspectives of theories of bureaucracy (Sharma, 2020), we become skeptic of an efficient implementation of regulations by governments or governmental agencies.
In the field of pharmaceutical applications, it is the “European Diabetes Forum” which calls for a regulation on reliable “glucose monitoring devices” with industry and user backing. Of course, this asks for bureaucratic control of the regulation, imports and markets of such devices later on. The one (regulation) is rarely coming without the other (bureaucracy). It is about time to acknowledge this for societies as a whole as well.

04/02/202603/02/2026

Democracy in Energy

Can there be democracy in energy? Power supply and power distribution are core topics in the theory of democracy as well. One of the foundations of democracy is the separation of power into a legislative, executive and a judicial power. A resilient democracy can assure a sufficient functioning of this fragile “balance of power”. In an energy market or a nation’s energy distribution a comparable balance of (electric or gas) power provision might be envisaged. The costs of parallel infrastructures of power distribution are high, but the resilience of overall power distribution will benefit. Also from a redundancy perspective, more than one distribution system may step in if there are failures or delivery problems with one of the distribution networks. The democracy in energy perspective goes beyond this simple analogy. Power supply as well as power distribution have been concentrated in large public or private enterprises, which might care little in terms of security or reliability of the overall system, not only during armed conflicts. Independent energy production and use, for example through wind and solar energy including batteries have pushed the feasibility of more democracy in energy to new boundaries. These technologies have enabled a new bifurcation and make room for more democracy in energy. It is a rather realistic version of a previously rather utopian vision.

02/02/202601/02/2026

Art and fashion

There is fashionable art and arty-ish fashion. The links between art and fashion are manifold and new explorations of the link are always an interesting variation of the original theme. The Berlin “Gemäldegalerie“ has added a contemporary perspective in connection with Berlin fashion week 2026 to the already rich collection on the topic. The exhibition confronts the craft of the world of fashion represented by the dresses on actual display with photographs of those dressed worn by models against the backdrop of the historic inspiration. Add sound and video to this format and you will be close to total immersion into the world of art and fashion yourself. Art and fashion may be a part of all us, not only the privileged few in society. It is most of all a question of crafts related to art, design and fashion, which dominates the creative process. A strong message from all involved in the project to the visitors.

31/01/202629/01/2026

German Cinémathèque

The “Deutsche Kinemathek” in Berlin has moved to its new location in the old E-Werk. There is room for temporary exhibitions and screening on all walls. Small boxes (3 seats) give a brief overview of the history of television. The library is accessible again to the public. In order to research what went wrong in the history of mass media and cinema in Germany during the 1930s and 1940s can get access to the archives as well. In the age of new digital media technology the study of historical approaches helps to be aware of the power of persuasion of this form of mass communication. A critical thinking perspective on the material presented and the long history of cinema can bring generations together through the exchange of experiences with different media.

16/01/202617/01/2026

Social time

What does the „social“ have to do with time. Well, time is a perfect case of a social construction or a fundamentally social construct. The definition of time as „Greenwich mean time“ is nothing but a useful socio-political statement to synchronize time across the world, or previously an imperium. Points in time, as shown on a clock(s), can be helpful to synchronize human behavior. We might want to show up on the same point in time to start or end work. Of course there are thousands of ways in which such synchronization might go awfully wrong. This makes for splendid drama and movies have a long history to capture our attention on this matter. Social expectations, a social, psychological, and even a biological concept in extreme cases (Pavlov effect) make many of us to get a bit itchy, if time is getting short to meet other persons or an expected event is going to happen. A lot of social pressure is transmitted through the ticking away of time. The mechanism to internalize social patterns (for example prayer), via time and the clock, is quite powerful and has been used in movies throughout the history of the cinema. Even the individual endpoint in time is in almost all cases a shared social experience and turns into a kind of socially relevant time. (Take your time to watch The Clock by Christian Marclay).

11/01/202613/01/2026

Time – The Clock

Time keeps puzzling us. The 24 hours of concatenated clips from well-known cinema films are a bit overwhelming or even lengthy. However, this spurs lots of time to reflect on time, on a kind of meta level. We see the clock or clocks ticking in all sorts of situations and environments. Nearly all emotional states can be interpreted relative to a time stamp provided by a clock. Christian Marclay’s oeuvre is screened at the Neue Nationalgalerie in Berlin at a time when we feel multiple clocks ticking at the same time. For the sociologist, there is time on the macro-societal level, like overall socioeconomic development, but also individual time. A single person or a single moment in time may have very different macro-social implications. The possibility to live through the cineastic interpretations of ten to, as opposed to, ten past the hour, are interpreted by us with very different meanings. In a longer or historical sense, the timing of time does not matter that much. Point in time or time as duration, that is the question. Art in cinema can play with this like rock around The Clock. Don’t ask me how much time I spent watching, thinking and feeling through time in this movie exhibition, Should we always measure time with a clock. Want it or not, we measured by our smartphones all the time and on multiple timelines.

07/01/202606/01/2026

Metabolic harm

At the beginning of the 21st century the lack of physical activity for large parts of society has become a major risk of and cause of metabolic harm. We have become used to a sedentary lifestyle and the digital access to distractions and information have encouraged further immobility. Alex Broom et al. (2025) stress the importance to include social and governmental interventions into the many existing medical, pharmacological and technological interventions. The authors advocate a rather holistic approach to really make a difference. The obesity trends cause metabolic harm of an unprecedented size. We have to rethink mobility patterns and other behavioral changes into our daily routines to bring back more stimulation to our metabolic system.

06/01/202605/01/2026

Rotational energy

We all know rotational energy from our bicycles. lighting used to come from a small rotational energy source attached to a wheel (dynamo light) which produced sufficient electricity to lighten a front and back light. The use of rotational energy, however, is much older than the application on the bicycles, which have been largely replaced by batteries and LED-lights. The first so-called Post-mills stem from Normandy as well as the Rhine riversides around 1200. It took about 800 years to make a splendid comeback as energy source in the age of the „All electric society“ of the 21st century in the making. The „Deutsche Museum of Technology“ in Berlin has great examples of such rotational energy sources on display in the museum‘s park. You can walk a path through the past and future of rotational energy sources.