Theo J. Mertzimekis, PhD

A 1947 French Film Accurately Predicted Our 21st-Century Addiction to Smartphones When we watch a movie from, say, twenty years ago, it strikes us that both nothing and everything has changed. Apart from their slightly baggier clothes, the people look the same as us. But where are ...

A 1947 French Film Accurately Predicted Our 21st-Century Addiction to Smartphones

A New Form of Verification on Bluesky - Bluesky We’re introducing a new layer of verification — a user-friendly, easily recognizable blue check. Additionally, independent organizations can verify accounts directly through our Trusted Verifiers feat...

Just applied for verification on Bsky and you can do too
Navigate to this blog post, the bottom part has the link to the form.
bsky.social/about/blog/0...

A brain drain would impoverish the United States and diminish world science Europe is advertising itself as a destination for embattled US scientists. It seems many are considering leaving.

www.nature.com/articles/d41...
This is true for every country in the world suffering brain drain. We can see the effects being strong in Greece after 10+ years of economic crisis. #AcademicSky

Too, too old;(

IBM was originally expressed by Arima and Iachello. Rick Casten had a catalytic impact on making IBM a real model for the nucleus. But many many others have contributed over the years.

Mapped interacting boson model for nuclear structure studies The present status of the mapped interacting boson model studies on nuclear structure is reviewed. With the assumption that the nuclear surface deformation induced by the multi-nucleon dynamics is sim...

🧪⚛️In full alignment with my PhD's very recent work. Just out
arxiv.org/abs/2504.023...

Twitter is locked, fb is long gone, instagram turned supernova, livejournal is ancient history, and no tiktoktaktektik crap. My online presence is limited to @bsky.app for now, but I see no motivation in using this social media crap any more.

I keep in my heart the very last Skype call with my all-time fav person who decided to give me a call just before the deletion. A moment, indeed!

So, today was another end-of-an-era moment for me. I have shutdown my Skype presence, erased my account and dropped my petty balance. A journey that started 22 years ago for me gets to an end. The bittersweet feeling is about all the memories Skype helped creating for me that are not digital zeros.

🤗

Huge 56-Mile Particle Smasher Is Possible, Says CERN Report Europe's CERN laboratory said on Monday that a detailed analysis revealed no technical obstacles to building the world's biggest particle collider, even as critics took issue with the "pharaonic" $17-...

🧪April Fools
www.sciencealert.com/huge-56-mile...

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NASA Wipes Graphic Novels About Women Astronauts From Its Websites The Trump administration's chilling effect on science agencies affects more than just funding.

Unbelievable gizmodo.com/nasa-wipes-g...

The passage from a BBC interview with Hoyle reads: We now come to the question of applying the observational tests to earlier theories. These theories were based on the hypothesis that all the matter in the universe was created in one big bang at a particular time in the remote past. It now turns out that in some respect or other all such theories are in conflict with the observational requirements. And to a degree that can hardly be ignored. Investigators of this problem are like a party of mountaineers attempting an unclimbed peak.

Happy birthday to the name "Big Bang.” Fred Hoyle, defending his steady state theory on the BBC, accidentally coined the term for the prevailing model of the early Universe #OTD in 1949. He was criticizing "the hypothesis that all matter of the universe was created in one big bang." 🧪 🔭 ⚛️ 💥

Comprehensive Review of 2$β$ Decay Half-Lives The double-beta (2$β$)-decay is the rarest nuclear physics process, and its experimental half-lives (T$_{1/2}$) exceed the age of the Universe from nine to fourteen orders of magnitude. Double-beta de...

arxiv.org/abs/2503.191... 🧪⚛️

Expected vibroacoustic behaviour of Greek Doric-style temples and its relation with geometrical physics design as part of the intangible cultural heritage This study proposes a new approach to the interpretation of Greek Doric-style temples, based on the integration of its tangible and intangible dimensions as a cultural heritage asset. Rooted on the Gr...

🧪📐Expected vibroacoustic behaviour of Greek Doric-style temples and its relation with geometrical physics design as part of the intangible cultural heritage
arxiv.org/abs/2503.16490

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long text here: www.theguardian.com/news/2025/fe...
podcast:
www.theguardian.com/news/audio/2...

NuPECC Long Range Plan 2024 for European Nuclear Physics The Nuclear Physics European Collaboration Committee ( NuPECC, http://nupecc.org/ ) hosted by the European Science Foundation represents today a large nuclear physics community from 23 countries, 3 ES...

🧪⚛️NuPECC Long Range Plan 2024 for European #Nuclear #Physics arxiv.org/abs/2503.15575

The atomic spectral lines in this app come from the NIST atomic spectroscopy group, which has provided the world with spectroscopic measurements for 120 years.

Today we got word that the federal government is laying off the entire group. 🔭🧪

GitHub - lucahammer/tweetXer: Delete all your Tweets for free Delete all your Tweets for free. Contribute to lucahammer/tweetXer development by creating an account on GitHub.

If you need to delete your tweets (just did), here is the FREE way to do it. I used it on Brave browser, works also on Chrome.
github.com/lucahammer/t...

Δεν υπάρχει καμία αμφιβολία, είμαστε χώρα Ταλιμπάν

🧪⚛️https://bigthink.com/starts-with-a-bang/quantum-reason-solidity-matter/

The Venn Diagram of Trump’s Authoritarian Actions

As created by Christina Pagel of University College London
source: christinapagel.substack.com/p/so-this-is...

Το παρακάτω διάγραμμα συνοψίζει την εξέλιξη της σεισμικής δραστηριότητας κοντά στη Σαντορίνη.

🧪⚛️

Simulating the response of a HPGe-based spectrometer for in situ, long-term operation near the seabed - The European Physical Journal Special Topics A novel underwater $$\gamma$$ γ -spectrometer, equipped with a HPGe crystal and utilizing electromechanical cooling, is introduced, and results from detailed Monte Carlo simulations are presented. The...

Very happy my PhD student’s work has been published OA today. In the paper, we summarize the effort to simulate and characterize a novel γ-ray spectrometer designed and constructed to operate in the depths of the ocean. If you think it’s easy, I can assure you it’s not.
doi.org/10.1140/epjs...

The plunger is really special as it can alter the distance between the excitation and the stopper foila so it can control the amount of nuclei decaying in flight, thus offering variable ranges half lives to be measured.

Since they have a velocity, the emitted gamma rays are affected by the Doppler effect and their energies are shifted. Nuclei which reach they stopper foil, stop and then decay show no Doppler. The technique measures Doppler differences present in the gamma ray spectra and deduces the half lives

I guess I had it coming.
I can not get into technical details, but a short answer is this: you create nuclei to excited states by shooting ions onto a target. The nuclei exit the foil and let fly through vacuum until they stop in a stopper foil (seen in the picture). (1/n)