Category: technology

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Heat Health Protection

The heat waves of 2026 had serious health impacts in Europe and beyond. Hence, it is urgent to propose better protections to shield people from negative heat exposure which worsened the health of millions of people. Digital tools which work to personalize heat warnings and increase preventive strategies like drinking water or reduce physical activity outside during the hottest times of the day. Sounds simple, but thousands of people continue to put themselves at risk to suffer seriously from heat exposure. The macro-level general population warning’s could be much more specific if they included additionally the relevant medical conditions of an individual (Du et al. 2026). Prior health conditions affect the general preparedness to cope with heat. We have an obvious case of bi-directional causality. A worsening heat health spiral could be at the origin of so many premature deaths during heat waves. Search for “cool locations” should be considered very seriously for heat-health protection.

Notre Dame Paris 2026-8

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Gone sailing

There are numerous ways to spend a nice vacation and take off your mind from daily routines. Sailing is certainly one of those leisure activities which ask for full concentration. Steady winds are more the exception than the rule and the skipper is asked to adapt rapidly to changing wind directions and other conditions. Waves and other sailing boats may of course ask you additionally to adapt your course to unforeseen circumstances. All this is a great training to keep on track even in stormy weather conditions around you. Team work helps to set sails as well as in manoeuvers to enter into ports. The Paris Jardin de Luxembourg (image below) allows training of parts of these competencies from an early age on and into old age as well. The physics of power and capsizing are part and parcel of sailing as well just as much as rules for crossing course, of course. 

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Autonomous drones

The weapon industry is shifting rapidly. Beyond slow moving tanks, modern warfare has adopted and applies autonomous drones in the battlefield. On the title page of the NYT of 2026-8-26 we learn about a Russian autonomous drone with US hardware technology (Nvidia Jetson Orin microPC) to kill 3 civilians without them being really the target. These drones are trained to select their target autonomously without a human in control. It is the pre-trained machine which decides on the target and whether to “take-out” the target. Disguised objects may survive for longer. People disguised as useless objects have a higher probability to escape detection if you do not fit into the drone’s visual identification. Autonomy based on artificial intelligence has its limits too. Military intelligence will continue to rely a lot on human intelligence to protect us from the realities of autonomous drones.  

Hiding from drone attack at BNF Paris 2026-8

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Sleepless sleep

The reasons why we pass an almost sleepless night or sleep are manifold. Too much to drink, eat or partying are just among the more social ones. The neighbour’s cat or cock may be another one. A recent comment by Pixin Gong (2026) outlined a whole research agenda on heat and sleep deficits. What is the threshold of bad sleep? Do we accumulate over days and how do we recover from it? Which measures and metrics are important? How to determine the social gradient of sleep deficits? The research base is largely missing due to neglecting the link of temperature as crucial impact on sleep in addition to melatonin levels. The implications of expected results can be far reaching like re-organization of homes, urban planning and architecture. (Image on the right: Rooster 1924 and Sleeping Muse 1910 by Brancusi, Centre Pompidou Paris in Berlin Exhibition Neue Nationalgalerie 2026-5)

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Urban heat island

Heat in the city, is a real problem. Of course, some like it hot and that’s why they move to inner cities and specific quarters in a city. However, this is not the scientific definition of the “urban heat island effect”. The former issue is more a socio-legal-moral concern, whereas the latter has physics or geophysical effects at its origin.
More concrete and asphalt instead of leafy islands in inner cities create hot micro-climates as sunlight and warmth get stored during the day and feeds back into homes during nights. If the cooling effect of wind and humidity become trapped outside of building blocks an urban heat island can reach very uncomfortable levels. Add underground car parking, tunnels for traffic and public transport to the scenario and the unhealthy limits of heat over the summer are exceeded for months rather than weeks. Geophysical factors like altitude, mountains, river or seaside proximity are additional factors to consider, but the narrow urban heat island effect is a rather robust finding across the world even if the precise measurement and potential remedies of it are under scientific debate.

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Ocean Acidification

No, the abbreviation of acidification is not AC/DC. Acidification stands for the process that our oceans turn more acid due to the absorption of CO2 from the atmosphere. This has several harmful consequences. Lower calcification, slower growth of corals and mollusks (oysters and mussels) for example, shall reduce biodiversity in the medium term of species with calcium-based skeletons. The UN highlights this in several reports, but action upon this evidence (Ifremer 2026) is slow or even absent. Besides the acidification, the oceans have increasing temperatures. Some researchers frame this process already as the “tropicalisation”, the warming of sea water and migration of fish according depending on their preferred or necessary temperatures of sea water. Some move to cooler water, other species move into or “invade” due to higher temperatures.
This can be observed and studied in citizen science projects across the globe and by tourists with a little interests in what is happening near the beaches. Just take a litmus-strip with you to test the basic or alkaline pH-value of the sea water in a glass of sea water. Then add a bit of soda water and test again. That’s a bit exaggerating, what acidification of oceans is about, but the underlying mechanisms is the same.

asidification-of-ocean-skeleton-Ostende-2026-beach

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War of drones

The fiction of a war of drones has been imagined, somehow, 500 years ago by Lucas Cranach. His altarpiece of the last judgment (1525) shows on the upper left corner flying little monsters that threaten humans on earth. The danger came from above and followed predefined judgments. The kind of weapon and threat were not so much different from today, but the portrayal of the person in command has changed. For the thousands of victims due to Putin’s war in Ukraine the modern scenario does not change that much. (Image: Cranach extract 1525 Gemäldegalerie Berlin)

Cranach extract 1525 Gemäldegalerie Berlin

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Open source gratitude

The advent of AI increases the need to react to more cyberattacks and faster. This means open source software, where many persons develop and implement defense strategies against malware, has a great potential to react fast to running attacks. The Mozilla Firefox Browser or the WordPress community, which facilitate webpage development and security do a great job to make the internet a safer space. Transparency in programming is a definite advantage which increases the number of people who continuously test the software and contribute solutions to malfunctioning parts of it. Thanks to so many, often anonymous or operating under pseudonym, we can navigate online with relatively high levels of security. Updating is our little contribution to value the community working on open source software. (Image: Exhibits by Hertzsch and Leetz/Waywood 2026-1 Lettegrafik, Schere, Stil, Papier).

Exhibits by Hertzsch and Leetz/Waywood 2026-1 Lettegrafik, Schere, Stil, Papier

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Cyber anxiety

The threat of AI to be used for cyber attacks has increased. This is serious matter and should be addressed not only by your IT-department, but by a whole organization or enterprise. Doors of entry have always existed. 100% cyber security has never existed. It has always been a cats and mice kind of game. Timely patches were the solution, which means you have to be faster than the attack to avoid or limit thefts of data. It is easy for web developers or persons responsible for data security to slip into a kind of “cyber anxiety”. There are multiple types of threats which range from complete loss of access to your own website or more subtle changes to content and contact information, which might be just embarrassing or get you into serious legal trouble. Login attempts to your accounts are a frequent occurrence and we should be carefully monitoring them and make necessary (name or 2nd factor) changes swiftly. Of course this is a pain, but thieves have checked open doors and Windows for generations before we had digital homes. Best way to deal with cyber anxiety is to take it seriously and check your points of entry regularly.

Cyber threats through failed login attempts

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Fountain of youth

The fountain of youth is such an old dream of humans that we are no longer surprised to witness perpetual reincarnations of the same theme again and again. The painting by Cranach the elder (1646) “Fountain of youth” (image below, Gemäldegalerie Berlin) sets the scene for what has become a billion dollar business nowadays. Whereas the old dream was about rejuvenation and cure from disabling diseases, we have become a bit more moderate in ambition to be happy about a halt to aging. Promises are reiterated and made in building on an army of influencers who push many remedies that lack rigorous scientific tests. Two studies published open access in “The Lancet Healthy Longevity” (Witham, McDonald 2026 and Duremdes Nava et al. 2026) provide evidence that in case of obesity and diabetes there are no easy or quick fixes available yet. Healthy longevity still relies mainly on lifestyle (changes), more exercise and careful nutrition rather than additional medication. Medium and long-term consequences of inactivity and unhealthy diets are to easily disregarded or their value discounted. How much are you willing to pay for an additional year of healthy living at age 30 or 70? Simple economics, but quite a successful business model as well.