Salta al contenuto principale



Implementing a Kalman Filter in PostgreSQL to Smooth GPS Data


Usually databases are treated primarily as fairly dumb data storage systems, but they can be capable of much more. Case in point the PostgreSQL database and its – Ada-based – PL/pgSQL programming language, which allows you to perform significantly more complex operations than would be realistically possible with raw SQL. Case in point the implementation of a Kalman Filter by the folk over at Traconiq, which thus removes the necessity for an external filtering pipeline.

Using a Kalman Filter is highly desirable when you’re doing something like vehicle tracking using both dead-reckoning and GPS coordinates, as it filters out noise that can be the result of e.g. GPS reception issues. As noted in the article, transferring state from one row to the next requires a bit of lateral thinking, but is doable with some creative SQL usage. As PL/pgSQL is very similar to Oracle’s PL/SQL, this same code should work there too without too much porting required.

The code for the different implementations and associated benchmarks can be found on GitHub, though the benchmark results make it abundantly clear that the most efficient approach is to run an offline aggregate processing routine. This coincides with the other batch processing tasks that are typically performed by a database server to e.g. optimize storage, so this isn’t entirely unsurprising.


hackaday.com/2025/10/02/implem…



Kei Truck Becomes Tiny RV


A forest green kei truck sits in an actual forest. In its bed is a dark grey box with a small window, wood trim, and a solar panel tilted on its roof. The headlights are on, hinting at the onset of twilight. You have a sudden urge to go glamping now.

Tent camping lets you explore places on foot you could never reach another way, but sometimes you want to camp with a bit more luxury. [Levi Kelly] decided to see how small you could make an RV. [via Autopian]

While we won’t argue one way or another on his claim to world’s smallest, as that likely depends on your definition of an RV, starting with a kei truck certainly puts you in a more compact format than something built on a bus chassis. With four wheel drive and a small footprint, this could be better for overlanding than the Rivian bed camper we featured recently.

The 21 sq. ft. (1.95 m2) camper portion itself is framed in 2 x 2s (38 x 38 mm) to save weight and uses foam board insulation. A working faucet uses a pump to draw drinking water from a 5 gallon (19L) refillable jug and empties into a 7 gallon (26L) grey water tank. A solar panel on the roof charges the battery that drives the pump, ventilation fan, and can also be used to run other devices like a hot plate for cooking.

A teeny tiny wood stove can be used for heat, although [Kelly] is using a different fuel source to reduce unpredictability from a wood fire in such a small space. A faucet-mounted sprayer can be routed to the outside of the camper to create a makeshift shower and is run from the sink water system. There’s even a small cabinet above the foot area of the bed to house a portable toilet and a bubble window to observe your surroundings while you do your business.

We’ve seen some even smaller campers, like this vintage-inspired bike camper, or this more streamlined version. If you want the most efficient RV ever then check out this solar-powered one.

youtube.com/embed/t_HjSaoo_CY?…


hackaday.com/2025/10/02/kei-tr…



Mario Guevara to be deported for reporting the truth


FOR IMMEDIATE RELEASE:

Atlanta-area journalist Mario Guevara’s family announced today that he will be deported to El Salvador tomorrow, after spending more than 100 days in detention.

Guevara was initially arrested on June 14 while reporting on a“No Kings” protest near Atlanta. Although the charges against him were dropped, the government argued during deportation proceedings that his filming of law enforcement activities — a constitutionally protected activity — created a threat to public safety.

The following statement can be attributed to Seth Stern, director of advocacy of Freedom of the Press Foundation (FPF):

“Mario Guevara was ripped from his family and community because the Trump administration punishes journalists to protect its own power.

“The only thing that journalists like Guevara threaten is the government’s chokehold on information it doesn’t want the public to know. That’s why he’s being deported and why federal agents are assaulting and arresting journalists around the country.

“The full impact on our freedom of speech may never be known. But what is certain is that Guevara’s deportation sends a chilling message to other journalists: Tell the truth, and the state will come for you.

“This is unconstitutional, un-American, and wrong. It’s an assault on the First Amendment, and it won’t stop until we all fight back by speaking out.”

Before today’s news, more than 100 writers, journalists, and scholars signed a letter calling for his immediate release. For more about Guevara’s case, visit freedomformario.com/.

Please contact us if you would like further comment.


freedom.press/issues/mario-gue…



Building A Desk Display For Time And Weather Data


Just about every laptop, desktop, and smartphone in your life can tell you the date, time, and current weather predictions. However, sometimes it’s nice to have simple data displayed on a bespoke device. That’s what inspired [Mario] to create ESPTimeCast.

As you might have guessed by the name, the project is designed around the ESP32 and ESP8266 microcontrollers; either one is up to the task of running the show here. Both come with Wi-Fi connectivity out of the box, which makes it easy for them to hook up to the Internet to query NTP servers for the time and weather data from OpenWeatherMap. The data is then displayed on an LED matrix display, made up of four 8×8 LED modules and driven with the aid of the MAX7219 IC. Configuration is handled over a simple web interface hosted on the device itself. All the parts are wrapped up in a 3D-printed housing that would be very fitting in any home that appreciates the magic of late 60s/early 70s decor.

Hackers love building clocks, weather stations, and other useful information displays. We’ve seen a great many examples over the years. If you’re cooking up your own neat project in this area, don’t hesitate to let us know!


hackaday.com/2025/10/02/buildi…





ROCCA DICE BENE: INCENERITORE = PIETRA TOMBALE DELLA DIFFERENZIATA


Le odierne dichiarazioni di Rocca sull'inceneritore come pietra tombale della differenziata a Roma esprimono alla perfezione le scelte politiche sulla gestione dei rifiuti della Capitale. I rifiuti che bruceranno saranno interamente composti da tal quale, non solo una parte, ovvero 600 mila tonnellate per oltre 30 anni.

Dopo tre anni, la raccolta differenziata è ancora ferma al palo. Le proiezioni al 2035 evidenziano un 20% di scarto: rifiuti che, pur raccolti come differenziati, finiscono comunque nell’indifferenziato.

Uno spreco enorme che potrebbe essere evitato con una efficace raccolta porta a porta, aprendo anche la strada a una futura tariffa puntuale. Invece la giunta Gualtieri certifica il fallimento del suo piano rifiuti, continuando a puntare sui cassonetti stradali, ormai trasformati in parte integrante dell'arredo urbano.

La preoccupazione espressa dal presidente Rocca si trasformi in un concreto ripensamento sulla gestione dei rifiuti a Roma favorendo il rilancio del recupero di materia possibile solo attraverso una raccolta differenziata di qualità in linea con gli ambiziosi obiettivi ambientali europei.

Martedì scorso abbiamo presentato 24mila firme alla Camera che dicono no ai poteri speciali: siamo ancora in tempo per evitare che nella Capitale si compia il crimine ambientale di bruciare rifiuti tal quale per i prossimi 30 anni.

Unione dei Comitati contro l'inceneritore a Santa Palomba

2 ottobre 2025





La Global Sumud Flotilla vista dalle pagine di Haaretz


GAZA FLOTILLA: Israeli forces intercepted 39 boats carrying aid and foreign activists to Gaza, including Swedish campaigner Greta Thunberg, leaving only one vessel still sailing towards the Palestinian enclave, the organizers of the Global Sumud Flotilla said on Thursday. The flotilla, carrying medicine and food to Gaza, consisted of more than 40 civilian boats carrying about 500 parliamentarians, lawyers and activists.
Israel's Foreign Ministry said the activists were on the way to the Israeli port of Ashdod ahead of deportation. A ministry video showed Thunberg, the most prominent of the flotilla's passengers, sitting on a deck surrounded by IDF soldiers.

South African President Cyril Ramaphosa called Israel's interception of the Global Sumud Flotilla a "grave offense" against "global solidarity and sentiment that is aimed at relieving suffering in Gaza." Ramaphosa called on Israel to immediately release South Africans, including a grandson of Nelson Mandela, Nkosi Zwelivelile Mandela, and other foreign nationals who were on the flotilla

Protests broke out in Italy following Israel's interception of the flotilla bound for Gaza. In Rome, dozens of demonstrators gathered outside the city's main train station. In Naples, several protesters blocked tracks at the main train station, forcing rail services to halt, news agency ANSA reported. Protests were also reported in Milan and Turin.

Colombian President Gustavo Petro ordered the expulsion of Israel's entire diplomatic delegation on Wednesday following the detention of two Colombians in the flotilla and terminated Colombia's free trade agreement with Israel. Petro's office said the government would pursue all legal avenues internationally and within Israel to secure the release of the detained citizens and seek reparations.

The Istanbul chief prosecutor's office said it had launched an investigation into the detention of 24 Turkish citizens on the vessels on charges including deprivation of liberty, seizure of transport vehicles and damage to property, Turkey's state-owned Anadolu news agency reported.

The legal team organized by the Adalah Legal Center for Arab Minority Rights in Israel said it had been granted access to the Ashdod Port, where the flotilla activists are held, and has begun providing legal advice.



Building a Functional Aliens Motion Tracker


Aliens is the second film from the legendary science-fiction series about, well… aliens. Naturally, it featured some compelling future-tech — such as the M314 Motion Tracker. [RobSmithDev] wanted to recreate the device himself, using modern technology to replicate the functionality as closely as possible.

While a lot of cosmetic replicas exist in the world, [Rob] wanted to make the thing work for real. To that end, he grabbed the DreamHAT+ Radar HAT for the Raspberry Pi. It’s a short-range radar module, and thus is useless for equipping your own air force or building surface-to-air weaponry. However, it can detect motion in a range of a few meters or so, using its 60 GHz transmitter and three receivers all baked into the one chip.

[Rob] does a great job of explaining how the radar works, and how he integrated it into a viable handheld motion tracker that works very similarly to the one in the movie. It may not exactly keep you safe from alien predators, but it’s always fun to see a functional prop rather than one that just looks good.

This isn’t the first time we’ve seen somebody try to replicate this particular prop, but the modern electronics used in this build definitely bring it to the next level.

youtube.com/embed/KpUjXUSlkbU?…

youtube.com/embed/vl2sIVO404s?…

youtube.com/embed/EG7xqbPdjlk?…


hackaday.com/2025/10/02/buildi…





L'uomo che si fece imperatore degli Stati Uniti


Caduto in disgrazia per un investimento sbagliato, Joshua Norton il 17 settembre 1859 prese carta e penna e buttò giù un proclama che spedì alle redazioni dei principali giornali di San Francisco nel quale affermava: «A perentoria richiesta e desiderio di una larga maggioranza di questi Stati Uniti, io, Joshua Norton, un tempo cittadino di Algoa Bay, Capo di Buona Speranza, e oggi e per gli ultimi scorsi 9 anni e 10 mesi cittadino di San Francisco, California, dichiaro e proclamo me stesso Imperatore di questi Stati Uniti»

Scopri tutta la storia qui
natiperlastoria.home.blog/2025…

@Storia

in reply to storiaweb

Un uomo in piedi di fronte a una lanterna decorativa, ripreso in uno studio fotografico. L'uomo indossa un'uniforme blu scuro con decorazioni dorate sulle spalle e un cappello blu scuro con una piuma rossa. Ha una barba folta e lunghi baffi. Porta una spada o un bastone in mano ed è appoggiato a una piccola struttura in pietra. Sullo sfondo c'è un monumento parziale.

Un uomo con un'uniforme blu scuro, piuma rossa sul cappello e una folta barba, si erge di fronte a una lanterna decorativa in uno studio fotografico. L'uomo appoggia una spada o un bastone alla sua destra e ha le mani dietro la schiena. L'uniforme presenta dettagli dorati sulle spalle e una cintura. Sullo sfondo, un monumento parziale. La fotografia mostra uno stile d'epoca.

Fornito da @altbot, generato localmente e privatamente utilizzando gemma3

🌱 Energia utilizzata: 0.138 Wh



How Hydraulic Ram Pumps Push Water Uphill With No External Power Input


Imagine you have a natural stream running through a low-lying area on your farm. It’s a great source of fresh water, only you really need it to irrigate some crops sitting at a higher elevation. The area is quite remote from fixed utilities, complicating the problem.

Your first thought might be to grab a commercial off-the-shelf pump of some sort, along with a fancy solar power system to provide the necessary power to run it. But what if there were a type of pump that could do the job with no external power input at all? Enter the hydraulic ram pump.

The hydraulic ram pump stands as one of the most elegant examples of appropriate technology, converting the kinetic energy of flowing water into enough pressure to lift a portion of that water to heights that seem to defy gravity. This ingenious device requires no external power source and very little maintenance, making it a perfect solution for pumping applications in remote areas where it’s otherwise inconvenient to supply a pump with electricity or fuel.
A small hydraulic ram pump installed in Argentina. Note the water flowing out the waste valve, and the small hose which serves as the delivery line. It’s installed directly beneath a pressure vessel which works to smooth out the flow. Credit: Jorge Daniel Czajkowski, CC BY-SA 2.5
At its heart, the hydraulic ram pump exploits a phenomenon known as water hammer, the same effect that causes your pipes to bang when you quickly shut off a faucet. When flowing water is suddenly stopped, its momentum creates a pressure wave. When it comes to your pipes, you hear this rattling, hammering sound that is mostly just annoying. However, that pressure spike can actually instead be harnessed to do useful work—like pushing water uphill. It just requires some smart valving to do so.

The pump consists of just a few key components: a drive pipe that channels water from a source, a waste valve that normally allows water to flow freely, a delivery valve leading to the pump’s output, and an air chamber that acts as a pressure accumulator. These parts work together to create a self-sustaining pumping action.

The operation of the pump begins with water flowing down the drive pipe from a source that sits higher than the pump, such as the flow from a river or stream. Initially, the waste valve is open and water flows freely through it. As the flow velocity increases, the waste valve begins to rise due to the drag of the water flowing through it. Eventually, the valve rises to the point where it is completely shut, suddenly stopping the flow of water. This sudden halt causes water hammer, where the kinetic energy of the flowing water is converted into a powerful pressure spike that forces the delivery valve open, pushing water up through the pump outlet. Eventually, the pressure drop following the water hammer event causes the waste valve to reopen and the delivery valve to close, allowing the cycle to begin anew.
In the initial stage, water from the inlet flows out via the open waste valve. The delivery valve is held shut from the weight of water in the column above it. Credit: authorEventually, drag from the water flow causes the waste valve to shut. When it does, this creates a pressure spike which opens the delivery valve and forces water up and out of to the delivery outlet. Hydraulic ram pumps can deliver water to great heights in this way, though flow is reduced with greater output head. Pressure vessels are sometimes installed in the pump to reduce the impact of pressure spikes and smooth the output flow. Eventually, the pressure spike subsides, the delivery valve closes, and the waste valve reopens due to gravity, and the cycle begins again. Credit: author

Some pumps add a pressure chamber to the system, where the pressure spike leads to a vessel, compressing the air trapped inside. The compressed air acts like a spring, maintaining outflow pressure even after the initial water hammer effect subsides. This can improve flow and reduce strain on components of the pump by evening out the sharp pressure spikes when the waste valve closes.

This being Hackaday, we should mention that this is a lot like a step-up DC-DC converter, with an inductor playing the role of the water-filled pipe, providing intertia, and a diode and a smoothing capacitor playing the parts of the check value and air vessel. In electrical step-ups, the waste valve is usually a MOSFET to ground, and its driven electronically, rather than being slammed shut by the water hammer.

A hydraulic ram pump effectively takes a rapid flow of water at low pressure and delivers a low-speed flow at high pressure, allowing water to be readily delivered to a tank or output at higher elevation than the source. The ratio between the vertical fall of the drive water and the height to which water is lifted determines the amount of water reaching the output. For example, if the water source is 1 meter above the ram pump itself, and the delivery pipe is 10 meters above the pump, just 10% of the water will be delivered to the output with the other 90% passing out through the waste valve. Ultimately, though, this is generally considered an acceptable trade-off for a pump running from a natural water course with no external power input, with the waste valve outflow simply returning to the river or stream the pump is installed in. A hydraulic ram pump can be left running for a great deal of time to deliver more water and irrigate an area or fill a tank, even if the instantaneous flow rate is low. After all, you’re not paying for any power to run it!

youtube.com/embed/enBEMgDR3-A?…

Hydraulic ram pumps are popular where it’s desirable to pump water to some greater height without the need for an external power source.

Today’s hydraulic ram pumps find applications ranging from rural water supply systems to irrigation projects in developing countries. The hydraulic ram pump can prove useful in most any situation where it’s desirable to pump water to high elevation with no external power input. Ultimately, the hydraulic ram pump represents sustainable technology at its finest. It’s a clean, undisruptive way to harness natural energy to do useful work. What’s more rewarding than that?

Featured image: “Hydraulic Ram” by [Gutza] and [Sonett72].


hackaday.com/2025/10/02/how-hy…



Sono iniziate ieri, mercoledì 1° ottobre, presso la basilica di Santa Croce di Firenze le celebrazioni in onore di san Francesco d’Assisi, Patrono d’Italia. Gli eventi si sono aperti con il triduo preparatorio, che proseguirà anche oggi e domani.


La Fondazione Vaticana Giovanni Paolo II ha conferito il Premio San Giovanni Paolo II 2025 a mons. Jacques Mourad, arcivescovo siro-cattolico di Homs, Hama e Nabk. La cerimonia si terrà sabato 18 ottobre in Vaticano. La Giuria, presieduta dal card.


Free Circle: Linux Day 2025 – Open Mobile Experience - Privacy e libertà nel palmo della mano


thefreecircle.org/
Segnalato dal calendario eventi di Linux Italia e pubblicato sulla comunità Lemmy @GNU/Linux Italia
Linux Day 2025 – Open Mobile Experience
Privacy e libertà nel palmo della mano
Gli smartphone sono diventati il centro della nostra vita digitale: strumenti di

Laic Salocin reshared this.

in reply to Eventi Linux - Rassegna sugli eventi Linux

Buonasera, a #Torino, farò anch'io una presentazione in 45 min di #lineageos , #fdroid e #xmpp!

... Come semplice utente.... Ma spero aprire un orizzonte nuovo alla platea!

Venite numerosi!

linuxdaytorino.org/2025/



Il dito e la Luna, ancora...


Secondo me non tutti hanno capito che la Global Sumud Flotilla non era partita con lo scopo di sfamare la popolazione di Gaza.

Come mai avrebbero potuto fare 40 barchette, con un carico di provviste irrisorio rispetto ai bisogni della popolazione, a sfamare Gaza?

Come mai avrebbero potuto fare 40 barchette a superare il blocco dell'esercito israeliano?

Siamo davanti al solito caso del saggio che indica la Luna e dello stupido che gli guarda il dito.

Lo scopo della Flotilla era quello di far vedere a chi ha gli occhi socchiusi (non a chi ha gli occhi chiusi, perché tanto quelli non vedranno mai) come si comporta il governo israeliano, come sia privo di scrupoli al punto da fermare delle barchette di persone come noi, cariche di qualche pacco di farina da portare in un posto dove la gente muore di fame. Perché finché fanno schifezze agli altri non gliene importa niente a nessuno, questa volta invece erano persone come noi, gli italiani vedevano fare schifezze ad italiani come loro, i tailandesi le vedevano fare a tailandesi come loro, i brasiliani a brasiliani come loro.

Lo scopo era quello di creare indignazione tra le persone che non sono ancora indignate ma che da qualche parte un cuore ce l'hanno ancora, persone a cui magari una mezza umanità da qualche parte è rimasta, e sfruttare quell'indignazione per mettere in imbarazzo i governi come il nostro. Perché i governi come il nostro non si muoveranno finché non ci sarà una parte consistente dell'opinione pubblica che gli chiederà di farlo, perché a loro dei principi non importa nulla, i valori non li hanno, sono come cani di Pavlov che reagiscono solo a stimoli molto semplici (tipo la paura di perdere voti e quindi il potere che ne consegue).

La spedizione della Flotilla non serviva a sfamare Gaza, serve a portare noi in strada, a far pressione sui governi perché a loro volta la facciano su Israele, perché si interrompa il blocco degli aiuti e possano entrare le centinaia di camion che servono per portare a Gaza le migliaia di tonnellate di cibo e medicinali necessarie per dare un minimo di sollievo ai sopravvissuti al genocidio. Il cibo e le medicine sono già lì, a poca distanza da dove servono, i magazzini dell'ONU e delle ONG sono pieni, bisogna solo che Israele smetta di bloccare i camion.

Serviva a questo la Flotilla, non ad abbattere un blocco militare per consegnare qualche pacco di farina a Gaza.

Però capisco che se per qualcuno la Flotilla era partita per sfondare il cordone militare e sfamare Gaza allora sì, effettivamente è stato un fallimento colossale.

Ma allora il fallimento colossale non è stato questo, è stato molto prima, è stato quando le scuole hanno cominciato a sfornare persone che non hanno gli strumenti per capire cosa gli succeda intorno.

#GlobalSumudFlotilla #Gaza

in reply to Guido Dotti

@oKolobos prima delle scuole, sono i genitori (o chi per loro per i più sfortunati) a cui tocca insegnare a vedere oltre le apparenze, ascoltare oltre il frastuono mediatico di TV e internet. Se arrivi a scuola senza queste basi gli insegnanti possono fare poco.
@max
in reply to IlarioQ

@ilarioq
I nonni maledizione. I nonni. Bloccati con pensiero agli inizi del secolo scorso e plagiati da rete4, hanno inculcato idee retrograde ai nipoti oggi maggiorenni.
@oKolobos @max
in reply to We don't need AI. AI needs us.

@Imprinted @ilarioq averli conosciuti i nonni. I miei sono morti tutti e 4 prima che io nascessi, 2 prima e 2 subito dopo la 2a guerra mondiale. Di Rete conoscevano solo quella per pescare nel lago
in reply to We don't need AI. AI needs us.

@Imprinted però da quel che vedo nel mio quotidiano, i maggiorenni di oggi non sono male. A loro i nonni avranno di certo fatto qualche concessione di troppo, ma questi nonni, erano comunque persone che avevano vissuto periodi più o meno duri e il massimo della trasgressione (social) erano le signorine di Drive In, o un po prima la copertina di Playboy.

@oKolobos @max

in reply to Max - Poliverso 🇪🇺🇮🇹

qualche giorno addietro ho rivisto qualche secondo di Drive In. Vergognoso utilizzo del corpo femminile.
Avevamo davvero tanta strada da fare per il rispetto delle donne.
@oKolobos @Imprinted
in reply to Max - Poliverso 🇪🇺🇮🇹

certo, la Flotilla serviva a far aprire gli occhi sul genocidio a Gaza e c'è riuscita, quindi ha avuto successo!
Riscalda il cuore vedere le piazze di tutto il mondo piene di persone.
Grazie alla Flotilla possiamo sperare in un futuro migliore.


For decades, scientists assumed that symmetry between the reflectivity of Earth’s hemispheres was a “fundamental property” of our planet. Now, that’s changed.#News


Earth Is Getting Darker, Literally, and Scientists Are Trying To Find Out Why


🌘
Subscribe to 404 Media to get The Abstract, our newsletter about the most exciting and mind-boggling science news and studies of the week.

It’s not the vibes; Earth is literally getting darker. Scientists have discovered that our planet has been reflecting less light in both hemispheres, with a more pronounced darkening in the Northern hemisphere, according to a study published on Monday in Proceedings of the National Academy of Sciences.

The new trend upends longstanding symmetry in the surface albedo, or reflectivity, of the Northern and Southern hemispheres. In other words, clouds circulate in a way that equalizes hemispheric differences, such as the uneven distribution of land, so that the albedos roughly match—though nobody knows why.

“There are all kinds of things that people have noticed in observations and simulations that tend to suggest that you have this hemispheric symmetry as a kind of fundamental property of the climate system, but nobody's really come up with a theoretical framework or explanation for it,” said Norman Loeb, a physical scientist at NASA’s Langley Research Center, who led the new study. “It's always been something that we've observed, but we haven't really explained it fully.”

To study this mystery, Loeb and his colleagues analyzed 24 years of observations captured since 2000 by the Clouds and the Earth’s Radiant Energy System (CERES), a network of instruments placed on several NOAA and NASA satellites. Instead of an explanation for the strange symmetry, the results revealed an emerging asymmetry in hemispheric albedo; though both hemispheres are darkening, the Northern hemisphere shows more pronounced changes which challenges “the hypothesis that hemispheric symmetry in albedo is a fundamental property of Earth,” according to the study.

Loeb and his colleagues suggest that asymmetry is primarily driven by the effects of climate change, reductions in aerosol pollution, and natural disasters like volcanic eruptions and wildfires. Since snow and ice are highly reflective, the thinking goes, the melting of glaciers and ice sheets due to anthropogenic gas emissions is causing a reduction in albedo, especially in the Northern hemisphere.

Meanwhile, aerosols—which stimulate the formation of clouds—are causing uneven regional albedo changes. For example, the international effort to remove harmful commercial aerosols from the atmosphere has resulted in a drop in these substances over the Northern hemisphere, and therefore cloud cover, exacerbating the darkening effect. In the Southern hemisphere, aerosol-heavy clouds generated just over the past few years by disasters like the 2019-2020 Australian bushfires and the 2021 to 2022 Hunga Tonga volcanic eruption may have brightened the albedo relative to the Northern hemisphere.

“The amount of aerosols has been increasing in the Southern hemisphere, and they've been decreasing in the Northern hemisphere,” explained Loeb. “Since aerosols reflect solar radiation, that would give you this asymmetry where you're seeing darkening in the Northern hemisphere compared to the southern Hemisphere.”

“All of these pieces added together give you this trend,” he continued. “But what was mysterious to me was that the clouds weren't compensating. If this hemispheric symmetry is a fundamental property of the system, the clouds should be giving you more reflection in the Northern hemisphere to compensate for the non-cloud properties. And I don’t see that—at least, not yet.”

Loeb’s team was able to spot this trend thanks to the long-term observations collected by CERES, a program that dates back to the late 1990s. The program has monitored the evolution of albedo in high resolution over decades, enabling the scientists to spot the new divergence from the normal symmetry.

“CERES has really opened up a new avenue of research that we couldn't do before,” Loeb said. “We had some measurements of Earth's radiation budget, but we struggled to have the same level of quality of the data.”

“Right now it's wonderful because we have very precise measurements over 25 years from CERES,” he continued. “It’s a unique opportunity for us to study things like this symmetry in a new light.”

To that end, Loeb and his colleagues plan to continue monitoring the asymmetry with CERES and probing its possible causes with more sophisticated climate models. The researchers are watching for signs that the symmetry might reemerge in the future, or if asymmetry is perhaps the new normal.

The overall darkening of Earth’s albedo is already accelerating the effects of climate change, and an asymmetric hemispheric darkening could produce its own complex impacts, including disruptive shifts in precipitation.

It’s very difficult to tease out the individual components that merge to create such complicated dynamics (Loeb calls it “unscrambling the egg”). To make matters worse, NASA is facing major cuts from the Trump administration, especially to its Earth observation satellites. CERES is due for one more launch in 2027, but these instruments are getting “long in the tooth,” Loeb said, and another program will eventually have to take up the mantle. Until then, researchers across disciplines will puzzle over why Earth is anomalously darkening, and what it might mean if this asymmetry is here to stay.

“We'll keep measuring and keep studying it, and I think this study should open the avenue for others to look at it,” Loeb concluded.

🌘
Subscribe to 404 Media to get The Abstract, our newsletter about the most exciting and mind-boggling science news and studies of the week.


#News

Breaking News Channel reshared this.



A hacking group called the Crimson Collective says it pulled data from private GitHub repositories connected to Red Hat's consulting business. Red Hat has confirmed it is investigating the compromise.

A hacking group called the Crimson Collective says it pulled data from private GitHub repositories connected to Red Hatx27;s consulting business. Red Hat has confirmed it is investigating the compromise.#News #Hacking


Red Hat Investigating Breach Impacting as Many as 28,000 Customers, Including the Navy and Congress


A hacking group claims to have pulled data from a GitLab instance connected to Red Hat’s consulting business, scooping up 570 GB of compressed data from 28,000 customers.

The hack was first reported by BleepingComputer and has been confirmed by Red Hat itself. “Red Hat is aware of reports regarding a security incident related to our consulting business and we have initiated necessary remediation steps,” Stephanie Wonderlick, Red Hat’s VP of communications told 404 Media.

A file released by the hackers and viewed by 404 Media suggested that the hacking group may have acquired some data related to about 800 clients, including Vodafone, T-Mobile, the US Navy’s Naval Surface Warfare Center, the Federal Aviation Administration, Bank of America, AT&T, the U.S. House of Representatives, and Walmart.

“The security and integrity of our systems and the data entrusted to us are our highest priority,” she said. “At this time, we have no reason to believe the security issue impacts any of our other Red Hat services or products and are highly confident in the integrity of our software supply chain.”
playlist.megaphone.fm?p=TBIEA2…
Red Hat is an open source software company that provides Linux-based enterprise software to a vast number of companies. As part of its business, Red Hat sells consulting contracts to users to help maintain their IT infrastructure. A hacking group that calls itself the Crimson Collective claims it breached a Red Hat GitLab repository that contained information related to Red Hat’s consulting clients.

“Since RedHat doesn't want to answer to us,” the hackers wrote in a channel on Telegram viewed by 404 Media, suggesting they have attempted to contact Red Hat. “Over 28000 repositories were exported, it includes all their customer's CERs [customer engagement reports] and analysis of their infra' [infrastructure] + their other dev's private repositories, this one will be fun,” the message added.. A CER is an internal document consultancy firms use to understand how its clients interact with their business. For an IT firm like Red Hat, this kind of document would contain a lot of information about a client's tech infrastructure including configuration data, network maps, and information about authentication tokens. A CER could help someone breach a network.

💡
Do you know anything else about this story? I would love to hear from you. Using a non-work device, you can message me securely on Signal at +1 347 762-9212 or send me an email at matthew@404media.co.

“We have given them too much time already to answer lol instead of just starting a discussion they kept ignoring the emails,” the message added.In another message, the group said it had “gained access to some of their clients' infrastructure as well, already warned them but yeah they preferred ignoring us.”

404 Media viewed data related to the breach and attempted to contact some of the affected clients, including the US Navy’s Naval Surface Warfare Center in Panama City and T-Mobile, but did not hear back.

Joseph Cox contributed additional reporting to this article.

Correction: this piece has been updated to say that the breach impacted a Red Hat GitLab, not a GitHub.


Breaking News Channel reshared this.




Diabete


E' ufficiale, mi hanno diagnosticato il diabete, dovrò prendere l'insulina. E' una mazzata non lo nego, adesso che sono in pensione e potevo vivere tranquillo ecco che arriva la bastonata in testa. Tanto per cambiare la vita di merda non si smentisce, mai una notizia buona. Vabbè, di qualcosa bisogna pur morire, prendiamola con filosofia.


Retorica da guerra e tensioni con i vertici militari. Il “Gran Rapporto” di Hegseth letto da Caruso

@Notizie dall'Italia e dal mondo

“L’era del Dipartimento della Difesa è finita. Benvenuti al Dipartimento della Guerra”, ha esordito Hegseth davanti a un’aula che, come ha poi scherzato Trump, era “il pubblico più silenzioso che abbia mai avuto”. Il Segretario non ha usato mezzi termini nell’accusare i presenti: “Per



Some services needed for immigration applications, like H-1B and E3 visas, no longer have funding, while others are still operational — for now.#Immigration #shutdown #visas


Government Shutdown Causes Even More Confusion for U.S. Visa Applicants


Amid the government shutdown, visa applicants are facing more confusion and are worried about potential delays, as some services essential to their application processes are “under maintenance” due to lapses in funding.

The Foreign Labor Application Gateway website, which employers use for labor certification and immigration applicants use to access documentation for their applications, is down due to the shutdown, with an “Under Maintenance” notice on the site in place of the portal.

The federal government shut down on Wednesday, as Republican legislators refuse to budge on their desired cuts to Medicaid and Affordable Care Act healthcare subsidies. The last government shutdown was in 2018, also under President Donald Trump, and lasted 35 days.

“Due to a lapse in funding, all foreign labor certification activities administered by the Department’s Office of Foreign Labor Certification (OFLC) have been suspended,” the site currently says. “During this suspension, access to the Foreign Labor Application Gateway (FLAG), will be disabled and will not permit system users to prepare and submit new applications as well as submit any information associated with applications pending a final determination.”
Screenshot of flag.dol.gov as of Oct. 2
A notice on the State Department’s Bureau of Consular Affairs site says consular operations domestically and abroad will remain operational, however, including passports, visas, and assisting American citizens abroad. Consular services, including US Citizenship and Immigration Services (USCIS), are almost entirely fee-funded and only a small part of their funding is reliant on congress. The American Immigration Council notes that for this reason, application interviews, naturalization ceremonies, biometrics processing, and other parts of the immigration system should continue as usual, and past reports have shown that only one percent of the USCIS would likely need to be furloughed during a shutdown, but that backlogs and increased immigration enforcement from the Trump administration could mean even that one percent could create more delays.

The Office of Foreign Labor Certification website shows a notice about a lapse in appropriations: “This website is currently not being updated due to the suspension of Federal government services,” the site says. “The last update to the site was 10/1/2025.  Updates to the site will start again when the Federal government resumes operations.”

An Australian applicant for an E3 visa — a specific type of temporary, non-immigrant work visa for Australian citizens — told 404 Media that not being able to access the FLAG website means she can’t access or download the Department of Labor-certified Labor Condition Application she needs for her visa appointment in two weeks.

“If the shutdown is lifted prior to my visa appointment, I’ll download the LCA and be on my way. If however the shutdown goes on past my appointment date, I don’t know what I’ll do,” she said.

The immigration and visa application process, overhauled by the Trump administration since taking office, has already caused chaos and confusion for applicants. On Friday, Trump signed an executive order that adds a $100,000 fee for applicants to the H-1B visa program for skilled foreign workers. US-based workers visiting abroad during the announcement rushed to travel back to the US after Trump’s announcement left them only hours before Trump’s deadline at midnight on Sunday, while some employers, especially small startups, scrambled to pay the fees for their workers.
playlist.megaphone.fm?p=TBIEA2…




Marco Cappato al KUM! Festival a Pesaro – Dialogo con Monsignor Vincenzo Paglia


Marco Cappato al KUM! Festival – Dialogo con Vincenzo Paglia


📅 Venerdì 17 ottobre 2025
🕠 Ore 17:30
📍 Auditorium Scavolini, Pesaro
🎤 Modera Antonio Sanfrancesco


CURA, DIRITTO, LIBERTÀ
Un confronto tra Marco Cappato, tesoriere dell’Associazione Luca Coscioni, e mons. Vincenzo Paglia, sul significato della cura, le libertà individuali e i diritti fondamentali alla fine della vita.

Siamo di fronte a una rivoluzione demografica senza precedenti.
Il calo delle nascite, l’allungamento della vita media e le innovazioni della medicina contemporanea stanno trasformando profondamente la struttura della nostra società, così come i modi di vivere e di morire.
Le categorie tradizionali – fede contro ragione, necessità di cura contro libertà di scelta, salute contro malattia – non bastano più a orientarci.
Da qui l’urgenza di nuove categorie concettuali, etico-politiche, pratiche e giuridiche, capaci di dare senso alle scelte che ciascuno di noi è chiamato a fare.


Un’occasione per approfondire uno dei dibattiti più attuali e urgenti del nostro tempo.

🔗 Info: www.kumfestival.it

L'articolo Marco Cappato al KUM! Festival a Pesaro – Dialogo con Monsignor Vincenzo Paglia proviene da Associazione Luca Coscioni.





Stazioni condivise e allarmi solari. La nuova architettura spaziale euro-coreana

@Notizie dall'Italia e dal mondo

La cooperazione spaziale è ormai terreno strategico, dove tecnologia e sicurezza si intrecciano con diplomazia e industria. L’affidabilità delle infrastrutture orbitali e terrestri è cruciale per comunicazioni, navigazione e osservazione della Terra, come




Incursioni aeree, attacchi ibridi e faglie Est-Sud. Cosa è emerso dal Consiglio europeo di Copenhagen

@Notizie dall'Italia e dal mondo

La successione senza precedenti di “incidenti” legati ai droni e alle violazioni dello spazio aereo europeo ha scosso le cancellerie europee, più di quanto ci si sarebbe aspettati. Benché non sia ancora possibile ricondurre la totalità degli







Congratulations to the New Board of the Pirate Party Germany!


The Pirate Party Germany held its General Assembly on September 27 and 28 in Dudweiler, Germany and elected their 19th Federal Board.

Lilia Kayra Kuyumcu was elected as the new Chair. At just 18 years old, she is the youngest Chair in the history of the German Pirate Party.

She will be joined by Denis Klüver as Vice-Chair, Jutta Dietrich as Treasurer, and Babak Tubis, Wolf Vincent Lübcke, Nick Neumann, and Karsten Wehner as Board Members.

We welcome the new leadership and hope to hear from them on the international stage. We also extend thanks to the outgoing board members, who we also hope will work with us more on the international stage.

Congratulations to the new Federal Board of the Pirate Party Germany!


pp-international.net/2025/10/c…



Next PPI board meeting on 07.10.2025 at 14:00 UTC / 16:00 CEST.


Ahoy Pirates,

Our next PPI board meeting will take place on 07.10.2025 at 14:00 UTC / 16:00 CEST.

All official PPI proceedings, Board meetings included, are open to the public. Feel free to stop by. We’ll be happy to have you.

Where:jitsi.pirati.cz/PPI-Board

Minutes of the meeting: wiki.pp-international.net/wiki…

Agenda: Pad: etherpad.pp-international.net/…

All of our meetings are posted to our calendar: pp-international.net/calendar/

We look forward to seeing visitors.

Thank you for your support,

The Board of PPI


pp-international.net/2025/10/n…








Vi presento Grokpedia (la Wikipedia muskiana)

L'articolo proviene da #StartMag e viene ricondiviso sulla comunità Lemmy @Informatica (Italy e non Italy 😁)
Il magnate sudafricano recupera un suo vecchio pallino: l'ostilità a Wikipedia. Musk annuncia via X di essere al lavoro su di una versione realmente super partes startmag.it/innovazione/vi-pre…




Rod Picott – Ville Lumière Promenade – Live at The Pomme D’Eve, Paris – 2005
freezonemagazine.com/articoli/…
C’è un momento nella carriera di ogni cantautore in cui la voce, le storie e il corpo stesso delle canzoni sembrano combaciare perfettamente con l’età e con l’esperienza vissuta. Per Rod Picott quel momento arriva ai suoi quaranta, quando approda a Parigi per registrare Ville Lumière Promenade, un live che


Stan Barstow – Un modo di amare
freezonemagazine.com/news/stan…
In libreria dal 10 Ottobre 2025 Pubblicato per la prima volta nel 1960, Un modo di amare segna l’esordio di Stan Barstow, qui per la prima volta tradotto in italiano da Nicola Manuppelli. Ambientato nello Yorkshire di fine anni Cinquanta, il romanzo racconta la storia di Vic Brown, giovane determinato e ambizioso che trova lavoro, comincia a guadagnare […]
L'articolo Stan Barstow – Un modo di


MANIFESTAZIONE SCIOPERO GENERALE 3 OTTOBRE 2025


@Giornalismo e disordine informativo
articolo21.org/2025/10/manifes…
Adesione articolo 21 “ci saremo perché di fronte al genocidio in atto, nessuno può astenersi, come sta facendo il governo italiano. Chi, come la presidente Meloni, continua ad inveire contro la Cgil e la Flotilla ci dica perché non

reshared this