These days you can run Doom anywhere on just about anything, with things like porting Doom to JavaScript these days about as interesting as writing Snake in BASIC on one’s graphical calculator. In a twist, [Patrick Trainer] had the idea to use SQL instead of JS to do the heavy lifting of the Doom game loop. Backed by the Web ASM version of the analytical DuckDB database software, a Doom-lite clone was coded that demonstrates the principle that anything in life can be captured in a spreadsheet or database application.
Rather than having the game world state implemented in JavaScript objects, or pixels drawn to a Canvas/WebGL surface, this implementation models the entire world state in the database. To render the player’s view, the SQL VIEW feature is used to perform raytracing (in SQL, of course). Any events are defined as SQL statements, including movement. Bullets hitting a wall or impacting an enemy result in the bullet and possibly the enemy getting DELETE-ed.
The role of JavaScript in this Doom clone is reduced to gluing the chunks of SQL together and handling sprite Z-buffer checks as well as keyboard input. The result is a glorious ASCII-based game of Doom which you can experience yourself with the DuckDB-Doom project on GitHub. While not very practical, it was absolutely educational, showing that not only is it fun to make domain specific languages do things they were never designed for, but you also get to learn a lot about it along the way.
When was the last time you saw a computer actually outlast your weekend trip – and then some? Enter the Evertop, a portable IBM XT emulator powered by an ESP32 that doesn’t just flirt with low power; it basically lives off the grid. Designed by [ericjenott], hacker with a love for old-school computing and survivalist flair, this machine emulates 1980s PCs, runs DOS, Windows 3.0, and even MINIX, and stays powered for hundreds of hours. It has a built-in solar panel and 20,000mAh of battery, basically making it an old-school dream in a new-school shell.
What makes this build truly outstanding – besides the specs – is how it survives with no access to external power. It sports a 5.83-inch e-ink display that consumes zilch when static, hardware switches to cut off unused peripherals (because why waste power on a serial port you’re not using?), and a solar panel that pulls 700mA in full sun. And you guessed it – yes, it can hibernate to disk and resume where you left off. The Evertop is a tribute to 1980s computing, and a serious tool to gain some traction at remote hacker camps.
For the full breakdown, the original post has everything from firmware details to hibernation circuitry. Whether you’re a retro purist or an off-grid prepper, the Evertop deserves a place on your bench. Check out [ericjenott]’s project on Github here.
Segnali contraddittori continuano ad arrivare dal fronte diplomatico russo-ucraino, con l’amministrazione Trump che evidenzia sempre più segnali di impazienza di fronte alla fermezza di Mosca e alle resistenze di Kiev ad accettare un accordo per mett…
This week, Jonathan Bennett and Randal Schwartz chat with Allen Firstenberg about Google’s AI plans, Vibe Coding, and Open AI! What’s the deal with agentic AI, how close are we to Star Trek, and where does Open Source fit in? Watch to find out!
Did you know you can watch the live recording of the show right on our YouTube Channel? Have someone you’d like us to interview? Let us know, or contact the guest and have them contact us! Take a look at the schedule here.
The foreign ministers of Germany, France and Britain called Israel's blocking of aid into Gaza as "intolerable."
Chissà com'è vivere in un paese dove chi governa considera intollerabile bloccare gli aiuti umanitari e far morire di fame, stenti e malattie una popolazione intera.
Durante l’edizione di quest’anno dell’esercitazione militare Balikatan, eseguita congiuntamente dalle forze armate di Washington e di Manila nella regione indo-pacifica, il Corpo dei Marines degli Stati Uniti testerà il Marine Air Defense Integrated System (Madis), uno dei più
Drumboy and Synthgirl from Randomwaves are a a pair of compact electronic instruments, a drum machine and a synthesiser. They are commercial products which were launched on Kickstarter, and if you’re in the market for such a thing you can buy one for yourself. What’s made them of interest to us here at Hackaday though is not their musical capabilities though, instead it’s that they’ve honoured their commitment to release them as open source in the entirety.
So for your download, you get everything you need to build a pair of rather good 24-bit synthesisers based upon the STM32 family of microcontrollers. We’re guessing that few of you will build your own when it’s an easier job to just buy one from Randomwaves, and we’re guessing that this open-sourcing will lead to interesting new features and extensions from the community of owners.
It will be interesting to watch how this progresses, because of course with the files out there, now anyone can produce and market a clone. Will AliExpress now be full of knock-off Drumboys and Synthgirls? It’s a problem we’ve looked at in the past with respect to closed-source projects, and doubtless there will be enterprising electronics shops eyeing this one up. By our observation though it seems to be those projects with cheaper bills of materials which suffer the most from clones, so perhaps that higher-end choice of parts will work in their favour.
Either way we look forward to more open-source from Randomwaves in the future, and if you’d like to buy either instrument you can go to their website.
Roy Lee used AI to beat challenging technical interviews, now he wants people to do the same thing with every human interaction. We tested the tool and it kinda sucks.#News
Distant-water fishers are out on the ocean for up to 10 months at a time, with no contact to the outside world. #unions #organizing #wi-fi #internetacces
It’s amazing how quickly medical science made radiography one of its main diagnostic tools. Medicine had barely emerged from its Dark Age of bloodletting and the four humours when X-rays were discovered, and the realization that the internal structure of our bodies could cast shadows of this mysterious “X-Light” opened up diagnostic possibilities that went far beyond the educated guesswork and exploratory surgery doctors had relied on for centuries.
The problem is, X-rays are one of those things that you can’t see, feel, or smell, at least mostly; X-rays cause visible artifacts in some people’s eyes, and the pencil-thin beam of a CT scanner can create a distinct smell of ozone when it passes through the nasal cavity — ask me how I know. But to be diagnostically useful, the varying intensities created by X-rays passing through living tissue need to be translated into an image. We’ve already looked at how X-rays are produced, so now it’s time to take a look at how X-rays are detected and turned into medical miracles.
Taking Pictures
For over a century, photographic film was the dominant way to detect medical X-rays. In fact, years before Wilhelm Conrad Röntgen’s first systematic study of X-rays in 1895, fogged photographic plates during experiments with a Crooke’s tube were among the first indications of their existence. But it wasn’t until Röntgen convinced his wife to hold her hand between one of his tubes and a photographic plate to create the first intentional medical X-ray that the full potential of radiography could be realized. “Hand mit Ringen” by W. Röntgen, December 1895. Public domain. The chemical mechanism that makes photographic film sensitive to X-rays is essentially the same as the process that makes light photography possible. X-ray film is made by depositing a thin layer of photographic emulsion on a transparent substrate, originally celluloid but later polyester. The emulsion is a mixture of high-grade gelatin, a natural polymer derived from animal connective tissue, and silver halide crystals. Incident X-ray photons ionize the halogens, creating an excess of electrons within the crystals to reduce the silver halide to atomic silver. This creates a latent image on the film that is developed by chemically converting sensitized silver halide crystals to metallic silver grains and removing all the unsensitized crystals.
Other than in the earliest days of medical radiography, direct X-ray imaging onto photographic emulsions was rare. While photographic emulsions can be exposed by X-rays, it takes a lot of energy to get a good image with proper contrast, especially on soft tissues. This became a problem as more was learned about the dangers of exposure to ionizing radiation, leading to the development of screen-film radiography.
In screen-film radiography, X-rays passing through the patient’s tissues are converted to light by one or more intensifying screens. These screens are made from plastic sheets coated with a phosphorescent material that glows when exposed to X-rays. Calcium tungstate was common back in the day, but rare earth phosphors like gadolinium oxysulfate became more popular over time. Intensifying screens were attached to the front and back covers of light-proof cassettes, with double-emulsion film sandwiched between them; when exposed to X-rays, the screens would glow briefly and expose the film.
By turning one incident X-ray photon into thousands or millions of visible light photons, intensifying screens greatly reduce the dose of radiation needed to create diagnostically useful images. That’s not without its costs, though, as the phosphors tend to spread out each X-ray photon across a physically larger area. This results in a loss of resolution in the image, which in most cases is an acceptable trade-off. When more resolution is needed, single-screen cassettes can be used with one-sided emulsion films, at the cost of increasing the X-ray dose.
Wiggle Those Toes
Intensifying screens aren’t the only place where phosphors are used to detect X-rays. Early on in the history of radiography, doctors realized that while static images were useful, continuous images of body structures in action would be a fantastic diagnostic tool. Originally, fluoroscopy was performed directly, with the radiologist viewing images created by X-rays passing through the patient onto a phosphor-covered glass screen. This required an X-ray tube engineered to operate with a higher duty cycle than radiographic tubes and had the dual disadvantages of much higher doses for the patient and the need for the doctor to be directly in the line of fire of the X-rays. Cataracts were enough of an occupational hazard for radiologists that safety glasses using leaded glass lenses were a common accessory. How not to test your portable fluoroscope. The X-ray tube is located in the upper housing, while the image intensifier and camera are below. The machine is generally referred to as a “C-arm” and is used in the surgery suite and for bedside pacemaker placements. Source: Nightryder84, CC BY-SA 3.0. One ill-advised spin-off of medical fluoroscopy was the shoe-fitting fluoroscopes that started popping up in shoe stores in the 1920s. Customers would stick their feet inside the machine and peer at a fluorescent screen to see how well their new shoes fit. It was probably not terribly dangerous for the once-a-year shoe shopper, but pity the shoe salesman who had to peer directly into a poorly regulated X-ray beam eight hours a day to show every Little Johnny’s mother how well his new Buster Browns fit.
As technology improved, image intensifiers replaced direct screens in fluoroscopy suites. Image intensifiers were vacuum tubes with a large input window coated with a fluorescent material such as zinc-cadmium sulfide or sodium-cesium iodide. The phosphors convert X-rays passing through the patient to visible light photons, which are immediately converted to photoelectrons by a photocathode made of cesium and antimony. The electrons are focused by coils and accelerated across the image intensifier tube by a high-voltage field on a cylindrical anode. The electrons pass through the anode and strike a phosphor-covered output screen, which is much smaller in diameter than the input screen. Incident X-ray photons are greatly amplified by the image intensifier, making a brighter image with a lower dose of radiation.
Originally, the radiologist viewed the output screen using a microscope, which at least put a little more hardware between his or her eyeball and the X-ray source. Later, mirrors and lenses were added to project the image onto a screen, moving the doctor’s head out of the direct line of fire. Later still, analog TV cameras were added to the optical path so the images could be displayed on high-resolution CRT monitors in the fluoroscopy suite. Eventually, digital cameras and advanced digital signal processing were introduced, greatly streamlining the workflow for the radiologist and technologists alike.
Get To The Point
So far, all the detection methods we’ve discussed fall under the general category of planar detectors, in that they capture an entire 2D shadow of the X-ray beam after having passed through the patient. While that’s certainly useful, there are cases where the dose from a single, well-defined volume of tissue is needed. This is where point detectors come into play. Nuclear medicine image, or scintigraph, of metastatic cancer. 99Tc accumulates in lesions in the ribs and elbows (A), which are mostly resolved after chemotherapy (B). Note the normal accumulation of isotope in the kidneys and bladder. Kazunari Mado, Yukimoto Ishii, Takero Mazaki, Masaya Ushio, Hideki Masuda and Tadatoshi Takayama, CC BY-SA 2.0. In medical X-ray equipment, point detectors often rely on some of the same gas-discharge technology that DIYers use to build radiation detectors at home. Geiger tubes and ionization chambers measure the current created when X-rays ionize a low-pressure gas inside an electric field. Geiger tubes generally use a much higher voltage than ionization chambers, and tend to be used more for radiological safety, especially in nuclear medicine applications, where radioisotopes are used to diagnose and treat diseases. Ionization chambers, on the other hand, were often used as a sort of autoexposure control for conventional radiography. Tubes were placed behind the film cassette holders in the exam tables of X-ray suites and wired into the control panels of the X-ray generators. When enough radiation had passed through the patient, the film, and the cassette into the ion chamber to yield a correct exposure, the generator would shut off the X-ray beam.
Another kind of point detector for X-rays and other kinds of radiation is the scintillation counter. These use a crystal, often cesium iodide or sodium iodide doped with thallium, that releases a few visible light photons when it absorbs ionizing radiation. The faint pulse of light is greatly amplified by one or more photomultiplier tubes, creating a pulse of current proportional to the amount of radiation. Nuclear medicine studies use a device called a gamma camera, which has a hexagonal array of PM tubes positioned behind a single large crystal. A patient is injected with a radioisotope such as the gamma-emitting technetium-99, which accumulates mainly in the bones. Gamma rays emitted are collected by the gamma camera, which derives positional information from the differing times of arrival and relative intensity of the light pulse at the PM tubes, slowly building a ghostly skeletal map of the patient by measuring where the 99Tc accumulated.
Going Digital
Despite dominating the industry for so long, the days of traditional film-based radiography were clearly numbered once solid-state image sensors began appearing in the 1980s. While it was reliable and gave excellent results, film development required a lot of infrastructure and expense, and resulted in bulky films that required a lot of space to store. The savings from doing away with all the trappings of film-based radiography, including the darkrooms, automatic film processors, chemicals, silver recycling, and often hundreds of expensive film cassettes, is largely what drove the move to digital radiography.
After briefly flirting with phosphor plate radiography, where a sensitized phosphor-coated plate was exposed to X-rays and then “developed” by a special scanner before being recharged for the next use, radiology departments embraced solid-state sensors and fully digital image capture and storage. Solid-state sensors come in two flavors: indirect and direct. Indirect sensor systems use a large matrix of photodiodes on amorphous silicon to measure the light given off by a scintillation layer directly above it. It’s basically the same thing as a film cassette with intensifying screens, but without the film.
Direct sensors, on the other hand, don’t rely on converting the X-ray into light. Rather, a large flat selenium photoconductor is used; X-rays absorbed by the selenium cause electron-hole pairs to form, which migrate to a matrix of fine electrodes on the underside of the sensor. The current across each pixel is proportional to the amount measured to the amount of radiation received, and can be read pixel-by-pixel to build up a digital image.
Io al corteo del 25 aprile partecipo da anni, è anche un'occasione per vedere gente che non vedo quasi mai. Pranziamo insieme nella solita pizzeria, sfiliamo chiacchierando, poi ci salutiamo e ci diamo appuntamento all'anno prossimo.
Oh... con tutti questi appelli alla sobrietà mi stanno facendo venire voglia di mettermi a ballare nudo per strada!
Siamo felici di presentarvi la nostra nuova identità visiva e il nuovo sito web, pensati per raccontare meglio chi siamo, cosa facciamo e soprattutto come
📚 Il #23aprile è la Giornata mondiale del libro e del diritto d'autore, evento organizzato dall’UNESCO per promuovere il valore della lettura e l’importanza della protezione della proprietà intellettuale.
📚 Il #23aprile è la Giornata mondiale del libro e del diritto d'autore, evento organizzato dall’UNESCO per promuovere il valore della lettura e l’importanza della protezione della proprietà intellettuale.
@Notizie dall'Italia e dal mondo Teheran cerca un accordo con gli Stati Uniti. Ma le variabili sono molteplici, a cominciare dalle vere intenzioni di Trump che nessuno realmente conosce. Tel Aviv pronta a giocare le sue carte L'articolo NUCLEARE. Ombre sulla trattativa tra Usa e Iran (parte 1) proviene da Pagine Esteri.
Novecento di Bertolucci batte Salò di Pasolini cinque a due freezonemagazine.com/rubriche/… Mesopotamia Padana: quante sono le zone della Bassa comprese fra il letto del Po e un suo affluente? Tante. E tante quelle comprese fra il Po e due affluenti, come quella parte di pianura Padana racchiusa dall‘Adda a Ovest, dall‘Oglio a Est e dal Po a Sud. L‘area dell‘epopea laica in due tempi di “Novecento“ […] L'articolo Novecento di
@Notizie dall'Italia e dal mondo Secondo le autorità locali e diverse agenzie internazionali, le offensive militari israeliane stanno distruggendo ogni possibilità per la popolazione civile della Striscia L'articolo GAZA. Oggi altri uccisi e feriti. Raid israeliani su scuola e abitazioni
@Notizie dall'Italia e dal mondo L’America latina, ora gli rende omaggio: in forme sobrie e autentiche, come hanno fatto i dirigenti cubani, o addolorate, come Lula in Brasile e Maduroin Venezuela, che ha decretato tre giorni di lutto nazionale, celebrando “l’amico dei
@Notizie dall'Italia e dal mondo L’America latina, ora gli rende omaggio: in forme sobrie e autentiche, come hanno fatto i dirigenti cubani, o addolorate, come Lula in Brasile e Maduroin Venezuela, che ha decretato tre giorni di lutto nazionale, celebrando “l’amico dei
Il numero uno del Pentagono, Pete Hegseth, è ripiombato in un vortice di polemiche dopo la pubblicazione nel fine settimana di due articoli su altrettanti media ufficiali che hanno messo ancora una volta in discussione il suo ruolo alla testa della m…
Dopo la morte di Papa #Francesco , lunedì 21 aprile, le #ambasciate israeliane in tutto il mondo avevano postato su X un messaggio di #cordoglio per la morte di Papa Francesco. Il messaggio ufficiale era il seguente: "Riposa in pace, papa Francesco. Che la sua memoria sia una benedizione".
A poche ora dalla pubblicazione, il Ministero degli Esteri di #israele ha dato ordine a tutte le ambasciate di cancellare il post. Il ministero ha infatti emesso una direttiva che ordinava a tutte le missioni diplomatiche israeliane di cancellare qualsiasi post relativo alla morte del #Papa , senza fornire alcuna spiegazione. Agli ambasciatori è stato successivamente intimato di non firmare libri di #condoglianze presso le ambasciate vaticane in tutto il mondo.
Dopo la morte di Papa Francesco, lunedì 21 aprile, le ambasciate israeliane in tutto il mondo avevano postato su X un messaggio di cordoglio per la morte di Papa Francesco. Il messaggio ufficiale era...
Dopo la morte di Papa Francesco, lunedì 21 aprile, le ambasciate israeliane in tutto il mondo avevano postato su X un messaggio di cordoglio per la morte di Papa Francesco. Il messaggio ufficiale era il seguente: "Riposa in pace, papa Francesco. Che la sua memoria sia una benedizione".
A poche ora dalla pubblicazione, il Ministero degli Esteri di Israele ha dato ordine a tutte le ambasciate di cancellare il post. Il ministero ha infatti emesso una direttiva che ordinava a tutte le missioni diplomatiche israeliane di cancellare qualsiasi post relativo alla morte del Papa, senza fornire alcuna spiegazione. Agli ambasciatori è stato successivamente intimato di non firmare libri di condoglianze presso le ambasciate vaticane in tutto il mondo.
When FediForum got cancelled a few weeks ago, I heard from multiple participants that they were planning to showcasing some new features or products that they’ve been working on. The sudden last-minute cancellation has caused uncertainty on how to proceed, and there has not been a new date set for FediForum (nor is it clear in what format it will continue, if any). However, by and large participants have decided not to showcase or present their work outside of FediForum. This shows the influential role that FediForum plays in the fediverse development ecosystem. It is important avenue for developers to showcase their work to the rest of the developer community, with no clear replacement for it. As such, the news for the fediverse is especially slow this week.
An update from the Catodon project (a fork of a fork of Misskey), which is still on hiatus.
That’s all for this week, thanks for reading! You can subscribe to my newsletter to get all my weekly updates via email, which gets you some interesting extra analysis as a bonus, that is not posted here on the website. You can subscribe below:
Nel lessico strategico, lo spazio non è più soltanto un dominio tecnologico. È, ormai da tempo, una dimensione politica, economica e militare a tutti gli effetti. Ma è con l’avvento della seconda amministrazione Trump che gli Stati Uniti sembrano voler ridefinire in maniera sistemica
Forse è una mia impressione, ma mi pare che l'articolo sia di parte a favore degli Usa. Opportunità? Potenzialmente imitabile? Rigidità dottrinali? Scusate, ma se per "rigidità dottrinali" si intende la necessità di mantenere i privati ad un braccio di distanza da questioni che riguardano l'intera cittadinanza (privati che in passato e soprattutto nel presente si sono rivelati essere la principale fonte di disturbo del benessere pubblico) allora l'autore dell'articolo non ha capito un cazzo di quale direzione sta prendendo questa corsa alla spazio (spoiler: è la stessa direzione che sta prendendo la corsa alle dittature in una buona parte di quella piccola fetta di mondo che ancora si chiama "democratica", e non serve essere un giornalista per accorgersene). Mi sembra di diventare stupido a forza di ripetere che DARE SERVIZI PUBBLICI IN MANO AI PRIVATI E' UNA PESSIMA IDEA.
Può essere che non essendoci mai stati ad una manifestazione del 25 Aprile, se la immaginino come una sorta di baccanale, con eccessi, smodatezza ed esagerazioni di ogni tipo?
Boh... se provassero ad andarci magari scoprirebbero che è sempre "sobria", anche se non sono morti papi pochi giorni prima, e anche senza l'appello del ministro.
Prosegue a Roma l’attività di Luigi “Grechi” De Gregori sotto l’insegna di “I Giovani del Folkstudio”, la rassegna di cui è organizzatore e che si è spostata al Polmone Pulsante — Salita del Grillo, 21.Il 10 aprile è arrivato Claudio Sanfilippo per una presentazione del suo libro Un armadio di canzoni (Gianni Zuretti lo recensisce su Free Zone Magazine) e per un concerto. Un armadio di …
Prosegue a Roma l’attività di Luigi “Grechi” De Gregori sotto l’insegna di “I Giovani del Folkstudio”, la rassegna di cui è organizzatore e che si è spostata al …
Eh sì... Ricordo quando chiese di indagare se fosse in atto un genocidio... Chissà se dopo le infinite morti di donne e bambini civili si sia reso conto che Israele sta attuando uno sterminio su base etnica...
Non ascolto troppo spesso la musica classica (o comunque eseguita con strumenti antichi), quindi magari non faccio molto testo, ma trovo che questo violinista sia veramente molto molto bravo!
Maria Grazia Gagliardi – La sindrome di Gaza freezonemagazine.com/news/mari… In libreria il 24 Aprile 2025 «Perché sei stata quindici giorni nel tuo alberghetto di Gaza credi di essere l’unica a sdegnarsi, a vergognarsi?». Il digrignatore ora ha alzato lo sguardo e punta Elena con durezza. «Tu non dici mai niente» cauta lo rimprovera Elena che non vuole litigare. «A che serve parlare?». «A che […] L'articolo Maria Grazia Gagliardi – La sindrome di
Questa mattina ho condiviso su Facebook (eh sì, quel social) il post che vedete nell'immagine qui sotto.
L'ho accompagnato da queste parole, scritte da me:
"Un altro capitolo di qualcosa che, a differenza di quanto dice il post che ho condiviso, accade da molto più tempo; è una cosa antica. Se sei europeo e credi che l'Europa sia brutta e cattiva, che la fonte di tutti i problemi sia l'euro, o credi che il nostro Paese dovrebbe uscire dall'Europa, o che il nord Italia sia migliore del sud Italia, o che gli immigrati debbano restare di là dal mare perché sono la più grande minaccia per il nostro Paese, oppure che i vaccini facciano morire e siano parte di un piano di controllo delle masse, beh, se pensi tutto questo o anche una sola di queste cose... ...mi dispiace! ... ...ma sei stato MANIPOLATO. Quello controllato, sei TU. Molto, molto probabilmente hai queste idea perché "qualcuno" a est si è alzato una mattina e ha deciso ciò che TU devi pensare per il suo tornaconto. È brutto ammettere a se stessi di essere stati manipolati, me ne rendo conto perché ne so qualcosa io per primo, ma è il primo passo necessario da fare per liberarsi. Non è una vergogna essere manipolati: capita a tutti, in misure diverse. La vergogna è ostinarsi a non accettarlo e continuare a credere alle panzane."
Secondo voi quanto tempo ci metteranno ad insultarmi? (Spoiler: di solito non oltre la mezz'ora).
Maria Grazia Gagliardi – La sindrome di Gaza freezonemagazine.com/news/mari… In libreria il 24 Aprile 2025 «Perché sei stata quindici giorni nel tuo alberghetto di Gaza credi di essere l’unica a sdegnarsi, a vergognarsi?». Il digrignatore ora ha alzato lo sguardo e punta Elena con durezza. «Tu non dici mai niente» cauta lo rimprovera Elena che non vuole litigare. «A che serve parlare?». «A che […] L'articolo Maria Grazia Gagliardi – La sindrome di
🌍 Oggi #22aprile è la #GiornatadellaTerra. Il tema ufficiale della 55esima edizione dell’#EarthDay2025 è “Il nostro potere, il nostro pianeta” un invito chiaro a riconoscere la responsabilità individuale e collettiva nel guidare il necessario cambiam…
🌍 Oggi #22aprile è la #GiornatadellaTerra. Il tema ufficiale della 55esima edizione dell’#EarthDay2025 è “Il nostro potere, il nostro pianeta” un invito chiaro a riconoscere la responsabilità individuale e collettiva nel guidare il necessario cambiam…
giorovv
in reply to Pëtr Arkad'evič Stolypin • • •