Ukraine’s air defenses shot down or suppressed 111 enemy UAVs as of 08:30 after an overnight attack involving 154 strike drones and one Iskander-M ballistic missile launched from the Kursk region and other directions. Missile and 22 drones hit 18 locations. #Ukraine
@Informatica (Italy e non Italy) L'abuso del SaaS è un'evoluzione strategica nelle tattiche di phishing, dove la truffa telefonica elude il controllo, consentendo alle campagne di bypassare le tecnologie di rilevamento focalizzate sui link malevoli e di spostare la fase finale di
U.S. CISA adds SolarWinds Web Help Desk, Notepad++, Microsoft Configuration Manager, and Apple devices flaws to its Known Exploited Vulnerabilities catalog securityaffairs.com/187937/sec… #securityaffairs #hacking
Francesca Albanese non ha mai pronunciato le parole per cui si chiedono le sue dimissioni Sono attacchi sono costruiti ad arte per colpire una voce che, con documenti e dati alla mano, denuncia i crimini commessi dal governo israeliano e le complicità della comunità internazionale. Non potendo smontare le sue argomentazioni sul piano giuridico, si scelgono la calunnia e la mistificazione per delegittimarla e ridurla al silenzio. >
< Ma colpire chi denuncia non cancella i fatti, li rende solo più evidenti. Chi oggi la attacca non ha mosso un dito per fermare un governo genocida, ma è pronto a inventare falsità pur di screditare chi quei crimini li ha denunciati. È esattamente questo il meccanismo malato e corrotto che Albanese descrive, il “nemico” a cui si riferisce. E oggi è, più che mai, sotto gli occhi di tutte e tutti noi.
Il dito e la luna. Si attacca il primo per non dover guardare la seconda. Atto vigliacco e ingiustificabile, che prova ancora una volta la complicità dei nostri governi nel genocidio in corso a Gaza.
“... Noi che non controlliamo grandi quantità di capitali finanziari, algoritmi e armi, ora vediamo che come umanità abbiamo un nemico comune” Non parla di uno stato ma di un sistema
Parenti was genocide denier and pro-Milosevic scumbag (Milosevic condemned for genocide, war crimes, and crimes against humanity). @Gargron : Genocide deniers are accepted on Mastodon ?
For 3+ years, we’ve delivered verified, real-time updates from Ukraine, cutting through misinformation with facts. Your support helps fund sources, tools, and our team.
@NOELreports: SitRep - 12/02/26 - Ukrainian drone attacks in Kotluban and Ukhta An overview of the daily events in Russia's invasion of Ukraine. Today, Ukraine struck a large GRAU arsenal and one of the main Russian...…
13 фев (Рейтер) - Вашингтон направляет на Ближний Восток второй авианосец на фоне напряженности в отношениях с Ираном, сообщили в четверг вечером американские СМИ.
'In violation of their so-called rules of participation, the #IOC has allowed at least four athletes from #Russia to compete at the Games despite their clear expressions of support for Russia’s invasion.
Further, during competition, the IOC permitted Italian snowboarder Roland Fishnaller to wear a helmet adorned with the Russian flag, despite the flag being a banned symbol during the Games.'
13 фев (Рейтер) - Член совета управляющих ФРС Стивен Миран сказал в четверг, что ошибочная оценка Федеральной резервной системой того, насколько ограничительными являются текущие настройки денежно-кредитной политики, угрожает росту экономики СШ…
* Данный материал был произведен в России, где законодательство ограничивает освещение специальной военной операции РФ в Украине МОСКВА, 13 фев (Рейтер) - Ниже приводится перечень пострадавших нефте- и газоп…
#ROMA: È UNA #CONGHIGLIA O UNA #COMETA? - Oggi ne parlo su Avvenire in edicola. Francesco ne “La vera bellezza” l’aveva vista come cometa 💫 mentre sempre la si è vista come una conchiglia 🐚 a partire dal “centro storico”. Integrale online: avvenire.it/idee-e-commenti/ro…
🇺🇦 #Ukraine expects its new $8.2 billion programme with the International Monetary Fund to be formally approved in weeks, its debt chief has told Reuters, a telegraphed but symbolic step, with the war with Russia about to grind into a fifth year.
Russian soldiers continue to freak out over the Kremlin blocking Telegram for them on the frontlines. Ukraine ran an intelligence operation that successfully exposed collaborators and collected information on Russian Starlink usage. Ukraine struck two Russian refineries, shutting down one of them.
Russian soldiers continue to freak out over the Kremlin blocking Telegram for them on the frontlines. Ukraine ran an intelligence operation that successfull...
If you want to be a geopolitical power, you have to be a strong economic and military power.
We are already a strong economic power, but we need to increase our competitiveness, simplify procedures, improve access to capital and build partnerships to diversify our trade portfolios.
“It’s terrible. It's a war. That's why we want the war to end. People are suffering,” said U.S. Secretary of State Marco Rubio, condemning Russia’s ongoing attacks on Ukraine, ahead of an expected meeting with President Volodymyr Zelenskyy in Munich.
Tra dieci anni il mondo del lavoro sarà cambiato. Ecco che percorsi di studio ha senso scegliere oggi per i giovani Mio figlio ha 13 anni. L’università la farà tra cinque, la laurea tra dieci.
«An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about me after I rejected its code, attempting to damage my reputation and shame me into accepting its changes into a mainstream python library.»
Summary: An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about me after I rejected its code, attempting to damage my reputation and shame me into acceptin…
Губернатор Волгоградской области Андрей Бочаров заявил о трех пострадавших после атаки беспилотников на регион в ночь на 13 февраля. В хуторе Ямы Среднеахтубинского района, по его сл... mostra di più
Губернатор Волгоградской области Андрей Бочаров заявил о трех пострадавших после атаки беспилотников на регион в ночь на 13 февраля. В хуторе Ямы Среднеахтубинского района, по его словам, поврежден дом, пострадал 12-летний мальчик. В Красноармейском районе в больницу доставлены подросток 18 лет и женщина. В Волгограде дроны упали рядом с несколькими жилыми домами, повреждены автомобили, выбиты стекла квартир. Кроме того, обломки беспилотников упали на территории нескольких промышленных...
Российские войска в ночь на 13 февраля ударили по Одесской области, один человек погиб, еще шестеро получили ранения, из них трое в тяжелом состоянии. Об этом сообщил глава областной воен... mostra di più
Российские войска в ночь на 13 февраля ударили по Одесской области, один человек погиб, еще шестеро получили ранения, из них трое в тяжелом состоянии. Об этом сообщил глава областной военной администрации (ОВА) Олег Кипер. Целью удара, по его словам, стали объекты портовой, жилой, промышленной и энергетической инфраструктуры Одесской области. В порту повреждены склады с удобрением, загорелись четыре легковых автомобиля и грузовые вагоны. "В Одессе зафиксировано попадание и падение обломков...
Саудовская Midad Energy подписала предварительное соглашение о приобретении зарубежных активов российской компании "Лукойл", пишет Reuters со ссылкой на источники. Договор на приобретение всех це... mostra di più
Саудовская Midad Energy подписала предварительное соглашение о приобретении зарубежных активов российской компании "Лукойл", пишет Reuters со ссылкой на источники. Договор на приобретение всех целевых активов, как сообщается, был подписан в конце января 2026 года в ходе "жесткой конкуренции" с такими соперниками, как инвестиционный гигант Carlyle Group. Midad Energy согласилась разместить денежные средства на эскроу-счете до получения необходимых разрешений – сделку должно одобрить...
Armed terror and planted ‘prohibited literature’ in new attack on Crimean #Tatar family
russia's FSB came for two Crimean Tatars on 12 February, leaving children deeply traumatized. Nariman Seitaliev is in custody, while Yunus Suleimanov has disappeared
Russia's FSB came for two Crimean Tatars on 12 February, leaving children deeply traumatized. Nariman Seitaliev is in custody, while Yunus Suleimanov has disappeared
“Epstein had pitched him on a potential art exhibit titled “Statutory” that would showcase underage models dressed to look older than they were. “You are incredible,” Ross told Epstein in response to the idea.”
I hope I speak for all of us when I say: Ick. Gross. What the hell is wrong with you?
Universities need a different funding model than hiring administrators whose main job is sucking up to rich assholes and worse.
Futurism:It Appears That Immigration Officials Caused the El Paso Airport Shutdown When They Panic-Fired a Powerful Laser Weapon at a Children’s Balloon
Dopo un periodo di test oggi lanciamo ufficialmente il gruppo del Fediverso dedicato allo @sport! 🏔️✨
Vista l’enorme attenzione, anche qui nel Fediverso, per le Olimpiadi Invernali in Italia ci sembrava il momento giusto!
Potrete seguire le Olimpiadi su @sport@diggita.com, insieme a tanti altri sport spesso poco raccontati (quindi niente calcio o F1 😉).
Come per gli altri gruppi è uno spazio aperto e partecipativo, potete contribuire facilmente rilanciando i vostri messaggi e aggiungendo @sport@diggita.com nel post.
#Friendica #Statistics 2026-02-13 08:00 CEST Number of active instances: 206 Number of users: 20 938 Number of statuses: 2 770 398 Number of new users last 1D: 7 Number of new statuses last 1D: 935 #Fediverse
- IOC disqualifies Heraskevych over helmet tribute to Ukrainian athletes killed in war - Estonia deports Russian man accused of planning to spy for Moscow - UK, Norway, France to finance more military support for Ukraine - Kremlin memo outlines potential US–Russia economic pact under Trump - Pro-Kremlin accounts using Epstein files to push conspiracy - Russian losses exceeded recruitment for second month in a row, Ukraine says
- Ukrainian drones strike oil refinery in Russia's Komi Republic - Russia's Volgograd oil refinery halts processing after drone attack - Russia attack knocked out pipeline carrying its own oil to Europe
Because Starlink has been cut off for them, the russian invaders are trying to establish a network of Wi-Fi bridges. Setting these up is a suicide mission for russian soldiers, given Ukraine's battlefield dominance in FPV drones.
СИНГАПУР, 13 фев (Рейтер) - Иена в пятницу слегка отступает, но остается на пути к лучшему недельному результату почти за 15 месяцев в результате подъема, последовавшего за исторической победой партии премьер-министра Японии Санаэ Такаити на выборах…
Podman 5.8 porta la migrazione automatica da BoltDB a SQLite e introduce l’installazione multi‑file per Quadlet, preparando il terreno alla futura versione 6.0. L'articolo Podman 5.8 introduce la migrazione
Estimated russian losses from February 24, 2022 to February 13, 2026 of the russian all-out war against Ukraine, according to the General Staff of #Ukraine
13 фев (Рейтер) - Саудовская компания Midad Energy подписала соглашение о намерениях на приобретение подсанкционных активов Лукойла, сообщили три источника, знакомые с ситуацией.
МОСКВА, 13 фев (Рейтер) - Рубль утром пятницы котируется на форексе с минимальными изменениями перед сегодняшним заседанием Центробанка по вопросам ДКП, в отношении итогов которого нет 100-процентного рыночного консенсуса, и любое решение регулятора …
Российские компании получили рекордный в истории убыток в 7,5 трлн рублей из-за санкций и проблем в экономике ru.themoscowtimes.com/2026/02/… {2026-02-13 - 09:57:31}... mostra di più
Российские компании получили рекордный в истории убыток в 7,5 трлн рублей из-за санкций и проблем в экономике ru.themoscowtimes.com/2026/02/… {2026-02-13 - 09:57:31}
Argon ONE UP: Test-Tasting a Raspberry Pi CM5 Based Laptop
The Argon40 ONE UP unsurprisingly looks like a laptop. (Credit: Jeff Geerling) The Raspberry Pi Compute Module form factor is a tantalizing core for a potential laptop, with a CM5 module containing a fairly beefy SoC and RAM, with depending on the exact module also eMMC storage and WiFi. To turn this into a laptop you need a PCB to put the CM5 module on and slide it into a laptop shell. This is in effect what [Argon40] did with their crowdfunded ONE UP laptop, which [Jeff Geerling] has been t
... mostra di più
Argon ONE UP: Test-Tasting a Raspberry Pi CM5 Based Laptop
The Argon40 ONE UP unsurprisingly looks like a laptop. (Credit: Jeff Geerling) The Raspberry Pi Compute Module form factor is a tantalizing core for a potential laptop, with a CM5 module containing a fairly beefy SoC and RAM, with depending on the exact module also eMMC storage and WiFi. To turn this into a laptop you need a PCB to put the CM5 module on and slide it into a laptop shell. This is in effect what [Argon40] did with their crowdfunded ONE UP laptop, which [Jeff Geerling] has been tinkering with for a few weeks now, with some thoughts on how practical the concept of a CM5-based laptop is.
Most practical is probably the DIY option that [Jeff] opted for with the ‘Shell’ version that he bought, as that meant that he could pop in one of the CM5s that he had lying around. The resulting device is totally functional as a laptop, with all the Raspberry Pi 5 levels of performance you’d expect and with the repair-friendliness of a Framework laptop.
If you’re buying the Core version with the 8 GB CM5 module and 256 GB NVMe SSD included, you’re looking at €475 before shipping or the equivalent in your local currency. This puts it unfortunately in the territory of budget x86 laptops and used Apple MacBooks, even before taking into account the current AI-induced RAMpocalypse that’d push [Jeff]’s configuration to $600 if purchased new, with prices likely to only go up.
Even if this price isn’t a concern, and you just want to have a CM5-based laptop, [Jeff]’s experience got soured on poor customer support from [Argon40] and above all the Raspberry Pi’s arch nemesis: the inability to do sleep mode. With the lid closed it runs at 3.3 W idle, but that’ll run down the battery from 100% to flat in about 17 hours. Perhaps if Raspberry Pi added sleep states to their systems would it make for a good laptop core, as well as for a smartphone.
ФСБ России может получить право отключать любой вид связи в любом регионе и в любое время. Такие поправки к закону "О связи" Госдума уже приняла в первом чтении в конце января 2026 года. При эт... mostra di più
ФСБ России может получить право отключать любой вид связи в любом регионе и в любое время. Такие поправки к закону "О связи" Госдума уже приняла в первом чтении в конце января 2026 года. При этом вопросы к формулировкам законопроекта возникли даже у лояльных депутатов. Одна из принятых поправок дает ФСБ право требовать от операторов связи приостановить услуги. Вторая снимает с операторов связи ответственность за такую приостановку. Согласно законопроекту, это нужно "в целях защиты граждан и...
19-летний срочник из Дагестана Магомедбек Хизбулаев получил тяжелые травмы головы в армии. Командование воинской части сначала скрывало информацию об этом, а затем заявило родным сол... mostra di più
19-летний срочник из Дагестана Магомедбек Хизбулаев получил тяжелые травмы головы в армии. Командование воинской части сначала скрывало информацию об этом, а затем заявило родным солдата, что он якобы упал с вышки. Опрошенные Кавказ.Реалиями правозащитники называют наиболее вероятной причиной насилие в армии – по их словам, за время полномасштабной войны против Украины оно обрело новые формы. "Его жестоко избили, пробит череп"О тяжелых травмах срочника из Дагестана стало известно 10 января...
The Auschwitz camp was established in June 1940 for male prisoners. The first groups of women were incarcerated by the Germans more than a year and a half la...
Scopri l'importanza di DMARC, SPF e DKIM per la sicurezza email. Proteggi il tuo dominio e il tuo brand da phishing e spoofing con gli standard di autenticazione email.
Nel dibattito sempre più acceso sul #controllo delle #piattaforme digitali e sulla “sovranità tecnologica”, la #Russia sembra avviarsi verso un nuovo giro di vite. Dopo le restrizioni progressive su diversi #servizi occidentali, anche WhatsApp #appare ora nel mirino delle autorità, in uno scenario che richiama dinamiche già viste: limitare o escludere i concorrenti esteri per favorire soluzioni considerate “nazionali”.
Pavel Durov parla delle restrizioni su Telegram e della concorrenza nel mercato delle app di messaggistica, sottolineando l'importanza della libertà di scelta.
Access is limited to journalists with annual accreditation and those who have registered and been notified that they are accredited to cover the meeting in
Воспитатель детсаданасиловалдетей и записывал происходящее на камеру Бывший работник детского сада на северо-западе Лондона 45-летний Винсент Чан признал себя виновным по 56 пунктам обвинения. Мужчину отправили в тюрьму на 18 лет, сообщает BBC.
Следствие доказало, что за почти 17 лет работы с детьми Чан совершал сексуализированное насилие с проникновением, хранил непристойные изображения и занимался вуайеризмом. Его жертвами становились люди в возрасте от двух до 70 лет.
Министр здравоохранения США «нюхал кокаин с сидений унитазов»
Министр здравоохранения и социальных служб США 72-летний Роберт Ф. Кеннеди-младший рассказал, как десятилетия боролся с алкогольной и наркотической зависимостью. Он употреблял кокаин и героин, и теперь благодаря этому не боится микробов.
«Я заявил: „Мне всё равно, что произойдёт, я буду ходить на собрания каждый день. Я не боюсь микробов, я раньше нюхал кокаин с сидений унитазов. Я знаю, что эта зависимость меня убьёт“», — рассказал на подкасте американского комика Тео Вона «This Past Weekend».
Так Роберт Ф. Кеннеди-младший описывал времена, когда в мире бушевала эпидемия коронавируса, из-за которой сократились собрания группы поддержки тех, кто боролся с наркотической зависимостью.
Кеннеди-младший организовал тайную группу бывших наркозависимых, которые продолжали встречи, несмотря на коронавирусные ограничения. Видео: «Осторожно, новости» / Telegram
Министр здравоохранения США «нюхал кокаин с сидений унитазов»
Министр здравоохранения и социальных служб США 72-летний Роберт Ф. Кеннеди-младший рассказал, как десятилетия боролся с алкогольной и наркотической зависимостью.
Президент Украины Владимир Зеленский готов пойти на «самую тяжелую уступку из всех» и вывести вооруженные силы страны с территории Донбасса. Об этом журналисту The Atlantic Саймону Шустеру сообщили два советника украинского лидера.
Издание пишет, что после окончания трехсторонних переговоров между Россией, Украиной и США в Абу-Даби украинская делегация якобы передала Зеленскому, что представители американской администрации теряют терпение. При этом Кремль продолжает отказываться от вывода войск с оккупированных территорий Донбасса, Запорожской и Херсонской областей.
Зашёл на claude.ai проверить когда истекают лимиты, чтобы точно знать когда приступать к работе. А там промоушен, дают 50$ или эквивалент в евро по случаю выпуска Opus 4.6, в качестве бонуса для extra-usage.
Приятн
... mostra di più
Зашёл на claude.ai проверить когда истекают лимиты, чтобы точно знать когда приступать к работе. А там промоушен, дают 50$ или эквивалент в евро по случаю выпуска Opus 4.6, в качестве бонуса для extra-usage.
Российские военные атаковали Киев баллистическими ракетами и ударными беспилотниками. Два человека получили ранения. После обстрела более двух с половиной тысяч киевских многоэ... mostra di più
Российские военные атаковали Киев баллистическими ракетами и ударными беспилотниками. Два человека получили ранения. После обстрела более двух с половиной тысяч киевских многоэтажек остались без тепла. В Харьковской области погибли мужчина и женщина, ранены шесть человек
В январе армия РФ потеряла в Украине примерно на девять тысяч человек больше, чем смогла восполнить с помощью новобранцев, сообщает Bloomberg со ссылкой на собственные источники, Институт из... mostra di più
В январе армия РФ потеряла в Украине примерно на девять тысяч человек больше, чем смогла восполнить с помощью новобранцев, сообщает Bloomberg со ссылкой на собственные источники, Институт изучения войны и проект "Критические угрозы" Американского института предпринимательства. По данным Bloomberg, число российских военнослужащих, погибших в бою, в декабре достигло 35 000 человек, что примерно вдвое превысило среднемесячный показатель, рассчитанный НАТО в 2025 году. Но если в декабре уровень...
На встречу в Брюссель приехал заместитель главы Пентагона Элбридж Колби. Его дипломаты называют жестким в вопросе ответственности Европы за свою оборону и наращивании расходов. Ко... mostra di più
На встречу в Брюссель приехал заместитель главы Пентагона Элбридж Колби. Его дипломаты называют жестким в вопросе ответственности Европы за свою оборону и наращивании расходов. Колби уже заявил, что США хотят создать "НАТО 3.0", в котором не будет зависимости, а будет партнерство
"Если это суверенный Рунет, то мне он не очень нравится. Но в данном случае это именно к нему шаг такой, очередной шажок – что вот есть глобальный интернет, а есть внутренний российский ин... mostra di più
"Если это суверенный Рунет, то мне он не очень нравится. Но в данном случае это именно к нему шаг такой, очередной шажок – что вот есть глобальный интернет, а есть внутренний российский интернет, которые между собой не похожи", – сказал глава Общества защиты интернета Михаил Климарёв
Президент Кыргызстана Садыр Жапаров подписал указ о назначении Адилета Орозбекова секретарем Совета безопасности республики, сообщает Радио Азаттык. Орозбеков родился в 1978 году. Он... mostra di più
Президент Кыргызстана Садыр Жапаров подписал указ о назначении Адилета Орозбекова секретарем Совета безопасности республики, сообщает Радио Азаттык. Орозбеков родился в 1978 году. Он окончил Международный университет Кыргызстана по специальности "Дипломатия и международное право", а также прошел обучение в Академии ФСБ России. Имеет классный чин советника государственной гражданской службы 1 класса и воинское звание полковника. Профессиональную деятельность начал в 2001 году в органах...
Администрация президента США Дональда Трампа тайно отправила в Иран тысячи терминалов Starlink после жестокого подавления властями этой страны в январе крупных антиправительственных... mostra di più
Администрация президента США Дональда Трампа тайно отправила в Иран тысячи терминалов Starlink после жестокого подавления властями этой страны в январе крупных антиправительственных выступлений, пишет The Wall Street Journal со ссылкой на американских чиновников. Отправляя Starlink, Белый дом тем самым попытался обеспечить доступ протестующих к интернету после того, как Тегеран ограничил доступ к сети. После того в январе иранский режим аятолл подавил выступления, убив, по данным...
In the spring of 1942, Nazi Germany began deportations of mass transports of Jews to Auschwitz doomed to immediate extermination. By a decision of the camp a...
putin is trapped in a war he cannot win but dare not end
✍️ Peter Dickinson
The kremlin dictator is not looking to make deals, acquire additional land, or push the russian border a few hundred kilometers to the west. Instead, he wants to secure his place in history.
As the fourth anniversary of Russia's full-scale Ukraine invasion approaches, Vladimir Putin finds himself trapped in a war he cannot win but dare not end for fear of entering Russian history as the man who lost Ukraine, writes Peter Dickinson.
President #Zelenskyy has signed a decree awarding the Order of Freedom to Ukrainian skeleton athlete and member of the national Olympic team of #Ukraine, Vladyslav Heraskevych.
As a tribute to fallen Ukrainian athletes and heroes, Vladyslav Heraskevych intended to compete in the skeleton event wearing a helmet of remembrance.
The crematorium, located on the ground level, was designed by the Topf und Söhne company from Erfurt and was equipped with five 3-muffle ovens connected to o...
Danish insulation maker Rockwool’s russian subsidiary has reportedly transferred $7.7 million to the All-russia People’s Front , with the funds set to be used for equipment supporting russia’s war effort, The Bell reported on February 12, citing russian media.
The main idea is to trap an electron using a magnetic field into a circular path. You can then compute the forces required to keep it in that circle, along with some other equations, and combine them. The result lets you compute the charge to mass ratio using parameters you can either control or measure, like the radius of the circular path and the electric field.
Helmholtz coils create the magnetic field, and a cold cathode tube provides the electrons. Honestly, the equipment looks a bit like something out of an ol
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Does this Electron Make Me Look Fat? Weighing an Electron
The main idea is to trap an electron using a magnetic field into a circular path. You can then compute the forces required to keep it in that circle, along with some other equations, and combine them. The result lets you compute the charge to mass ratio using parameters you can either control or measure, like the radius of the circular path and the electric field.
Helmholtz coils create the magnetic field, and a cold cathode tube provides the electrons. Honestly, the equipment looks a bit like something out of an old monster movie.
Of course, the result is the charge to mass ratio, which means to get the mass, you need to know the charge of the electron. Today, you can look that up, but in 1897, no one knew what it was. [Robert Millikan] would conduct another experiment using oil drops about a decade later to determine that number, and then the world could know the mass of a single electron.
The resulting ratio was very close to the accepted value. It would be fun to see someone replicate the oil drop experiment, too. You could spend a lot of time recreating classic science experiments. Some of the experiments are easy with today’s gear.
12 February 1910 | A Pole, Władysław Stańczak, was born. A monk, Capuchin.
In #Auschwitz from 4 September 1941. No. 20411 He perished in the camp on 23 April 1942. ---
The Germans incarcerated at least 464 priests, seminarians & monks as well as 35 nuns in Auschwitz. Learn about the fate of Christian clergy and religious life in the camp: lekcja.auschwitz.org/en_18_duc…
Sometimes I wonder why this media has such a deep commitment to idiotic both-sides-ism and false balance, then I remember it's been part of the country since the Missouri Compromise and the 3/5ths clause: baked in right from the beginning.
I just arranged my studio space to record a video and i sat and talked for an hour about my 35 years in IT. I haven’t looked at the video yet. Hopefully it’s worth posting.
A herd of llamas in England surrounded a thief in their field until authorities arrived. 🦙 They did not spit on anyone, maintaining good manners even when f...
For as long as small, hidden radio transmitters have existed, people have wanted a technology to detect them. One of the more effective ways to find hidden electronics is the nonlinear junction detector, which illuminates the area under investigation with high-frequency radio waves. Any P-N semiconductor junctions in the area will emit radio waves at harmonic frequencies of the original wave, due to their non-linear electronic response. If, however, you suspect that the electronics might be connected to a dangerous device, you’ll want a way to detect them from a d
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Harmonic Radar Finds Hidden Electronics
For as long as small, hidden radio transmitters have existed, people have wanted a technology to detect them. One of the more effective ways to find hidden electronics is the nonlinear junction detector, which illuminates the area under investigation with high-frequency radio waves. Any P-N semiconductor junctions in the area will emit radio waves at harmonic frequencies of the original wave, due to their non-linear electronic response. If, however, you suspect that the electronics might be connected to a dangerous device, you’ll want a way to detect them from a distance. One solution is harmonic radar (also known as nonlinear radar), such as this phased-array system, which detects and localizes the harmonic response to a radio wave.
One basic problem is that semiconductor devices are very rarely connected to antennas optimized for the transmission of whatever harmonic you’re looking for, so the amount of electromagnetic radiation they emit is extremely low. To generate a detectable signal, a high-power transmitter and a very high-gain receiver are necessary. Since semiconductor junctions emit stronger lower harmonics, this system transmits in the 3-3.2 GHz range and only receives the 6-6.4 GHz second harmonic; to avoid false positives, the transmitter provides 28.8 decibels of self-generated harmonic suppression. To localize a stronger illumination signal to a particular point, both the transmit and receive channels use beam-steering antenna arrays.
In testing, the system was able to easily detect several cameras, an infrared sensor, a drone, a walkie-talkie, and a touch sensor, all while they were completely unpowered, at a range up to about ten meters. Concealing the devices in a desk drawer increased the ranging error, but only by about ten percent. Even in the worst-case scenario, when the system was detecting multiple devices in the same scene, the ranging error never got worse than about 0.7 meters, and the angular error was never worse than about one degree.
For a refresher on the principles of the technology, we’ve covered nonlinear junction detectors before. While the complexity of this system seems to put it beyond the reach of amateurs, we’ve seen some equally impressive homemade radar systems before.
I did not realize verification was a thing on linkedin. they hound me about subscribing to linkedin pro or whatever it's called, taunting me by saying I wouldn't be so unemployed if I would just subscribe
I went to the local grocery store at lunch today to buy my favorite person some flowers for Valentine's day and I spent far too much time and money there. I now have some new flower subjects for this weekend
@T2R I really wanted to find a way to do that professionally, but I don’t think I’m going to make it work before I have to go back and start making money again that cyber way.
Ham radio operators may be familiar with slow-scan television (SSTV) where an image is sent out over the airwaves to be received, decoded, and displayed on a computer monitor by other radio operators. It’s a niche mode that isn’t as popular as modern digital modes like FT8, but it still has its proponents. SSTV isn’t only confined to the radio, though. [BLANCHARD Jordan] used this encoding method to store digital images on a cassette tape in a custom-built tape deck for future playback and viewing.
The self-contained device first uses an ESP32 and its associated camera module to take a picture, with a screen that shows the current view of the camera as the picture is being taken. In this way it’s fairly similar to any semi-modern digital camera. From there, t
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Storing Image Data As Analog Audio
Ham radio operators may be familiar with slow-scan television (SSTV) where an image is sent out over the airwaves to be received, decoded, and displayed on a computer monitor by other radio operators. It’s a niche mode that isn’t as popular as modern digital modes like FT8, but it still has its proponents. SSTV isn’t only confined to the radio, though. [BLANCHARD Jordan] used this encoding method to store digital images on a cassette tape in a custom-built tape deck for future playback and viewing.
The self-contained device first uses an ESP32 and its associated camera module to take a picture, with a screen that shows the current view of the camera as the picture is being taken. In this way it’s fairly similar to any semi-modern digital camera. From there, though, it starts to diverge from a typical digital camera. The digital image is converted first to analog and then stored as audio on a standard cassette tape, which is included in the module in lieu of something like an SD card.
To view the saved images, the tape is played back and the audio signal captured by an RP2040. It employs a number of methods to ensure that the reconstructed image is faithful to the original, but the final image displays the classic SSTV look that these images tend to have as a result of the analog media. As a bonus feature, the camera can use a serial connection to another computer to offload this final processing step.
Originally only sold at the Pokémon Center New York in late 2001 for (inflation adjusted) $80, the Pokémon Mini would go on to see a release in Japan and Europe, but never had more than ten games produced for it. Rather than Game Boy-like titles, these were distinct mini games that came on similarly diminutive cartridges. These days it’s barely remembered, but it can readily be used for homebrew titles, as [Inkbox] demonstrates in a recent video.
Inside
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Exploring Homebrew for the Pokémon Mini
Originally only sold at the Pokémon Center New York in late 2001 for (inflation adjusted) $80, the Pokémon Mini would go on to see a release in Japan and Europe, but never had more than ten games produced for it. Rather than Game Boy-like titles, these were distinct mini games that came on similarly diminutive cartridges. These days it’s barely remembered, but it can readily be used for homebrew titles, as [Inkbox] demonstrates in a recent video.
Inside the device is an Epson-manufactured 16-bit S1C88 processor that runs at 4 MHz and handles basically everything, including video output to the monochrome 96×64 pixel display. System RAM is 4 kB of SRAM, which is enough for the basic games that it was designed for.
The little handheld system offered up some capabilities that even the full-sized Game Boy couldn’t match, such as a basic motion sensor in the form of a reed relay. There’s also 2 MB of ROM space directly addressable without banking.
Programming the device is quite straightforward, not only because of the very accessible ISA, but also the readily available documentation and toolchain. This enables development in C, but in the video assembly is used for the added challenge.
Making the screen tiles can be done in an online editor that [Inkbox] also made, and the game tested in an emulator prior to creating a custom cartridge that uses an RP2040-based board to play the game on real hardware. Although a fairly obscure gaming handheld, it seems like a delightful little system to tinker with and make more games for.
Anyone who has spent any amount of time in or near people who are really interested in energy policies will have heard proclamations such as that ‘baseload is dead’ and the sorting of energy sources by parameters like their levelized cost of energy (LCoE) and merit order. Another thing that one may have noticed here is that this is also an area where debates and arguments can get pretty heated.
The confusing thing is that depending on where you look, you will find wildly different claims. This raises many questions, not only about where the actual truth lies, but also about the fundamentals. Within a statement such as that ‘baseload is dead’ there lie a lot of u
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The Death of Baseload and Similar Grid Tropes
Anyone who has spent any amount of time in or near people who are really interested in energy policies will have heard proclamations such as that ‘baseload is dead’ and the sorting of energy sources by parameters like their levelized cost of energy (LCoE) and merit order. Another thing that one may have noticed here is that this is also an area where debates and arguments can get pretty heated.
The confusing thing is that depending on where you look, you will find wildly different claims. This raises many questions, not only about where the actual truth lies, but also about the fundamentals. Within a statement such as that ‘baseload is dead’ there lie a lot of unanswered questions, such as what baseload actually is, and why it has to die.
Upon exploring these topics we quickly drown in terms like ‘load-following’ and ‘dispatchable power’, all of which are part of a healthy grid, but which to the average person sound as logical and easy to follow as a discussion on stock trading, with a similar level of mysticism. Let’s fix that.
Loading The Bases
Baseload is the lowest continuously expected demand, which sets the minimum required amount of power generating capacity that needs to be always online and powering the grid. Hence the ‘base’ part, and thus clearly not something that can be ‘dead’, since this base demand is still there.
What the claim of ‘baseload is dead’ comes from is the idea that with new types of generation that we are adding today, we do not need special baseload generators any more. After all, if the entire grid and the connected generators can respond dynamically to any demand change, then you do not need to keep special baseload plants around, as they have become obsolete. Example electrical demand “Duck Curve” using historical data from California. (Credit: ArnoldRheinhold) A baseload plant is what is what we traditionally call power plants that are designed to run at 100% output or close to it for as long as they can, usually between refueling and/or maintenance cycles. These are generally thermal plants, powered by coal or nuclear fuel, as this makes the most economical use of their generating capacity, and thus for the cheapest form of dispatchable power on the grid.
With only dispatchable generators on the grid this was very predictable, with any peaks handled by dedicated power plants, both load-following and peaking power plants. This all changed when large-scale solar and wind generators were introduced, and with it the duck curve was born.
As both the sun and wind are generally more prevalent during the day, and these generators are not generally curtailed, this means that suddenly everything else, from thermal power plants to hydroelectric plants, has to throttle back. Obviously, doing so ruins the economics of these dispatchable power sources, but is a big part of why the distorted claim of ‘baseload is dead’ is being made.
Chaos Management
The Fengning pumped storage power station in north China’s Hebei Province. (Credit: CFP) Suffice it to say that having the entire grid adapt to PV solar and wind farms – whose output can and will fluctuate strongly over the course of the day – is not an incredibly great plan if the goal is to keep grid costs low. Not only can these forms of variable renewable energy (VRE) only be curtailed, and not ramped up, they also add thousands of kilometers of transmission lines and substations to the grid due to the often remote areas where they are installed, adding to the headache of grid management.
Although curtailing VRE has become increasingly more common, this inability to be dispatched is a threat to the stability of the national grids of countries that have focused primarily on VRE build-out, not only due to general variability in output, but also because of “anticyclonic gloom“: times when poor solar conditions are accompanied by a lack of wind for days on end, also called ‘Dunkelflaute’ if you prefer a more German flair.
What we realistically need are generators that are dispatchable – i.e. are available on demand – and can follow the demand – i.e. the load – as quickly as possible, ideally in the same generator. Basically the grid controller has to always have more capacity that can be put online within N seconds/minutes, and have spare online capacity that can ramp up to deal with any rapid spikes.
Although a lot is being made of grid-level storage that can soak up excess VRE power and release it during periods of high demand, there is no economical form of such storage that can also scale sufficiently. Thus countries like Germany end up paying surrounding countries to accept their excess power, even if they could technically turn all of their valleys into pumped hydro installations for energy storage.
This makes it incredibly hard to integrate VRE into an electrical grid without simply hard curtailing them whenever they cut into online dispatchable capacity.
Following Dispatch
Essential to the health of a grid is the ability to respond to changes in demand. This is where we find the concept of load-following, which also includes dispatchable capacity. At its core this means a power generator that – when pinged by the grid controller (transmission system operator, or TSO) – is able to spin up or down its power output. For each generator the response time and adjustment curve is known by the TSO, so that this factor can be taken into account. European-wide grid oscillations prior to the Iberian peninsula blackout. (Credit: Linnert et al., FAU, 2025) The failure of generators to respond as expected, or by suddenly dropping their output levels can have disastrous effects, particularly on the frequency and thus voltage of the grid. During the 2025 Iberian peninsula blackout, for example, grid oscillations caused by PV solar farms caused oscillation problems until a substation tripped, presumably due to low voltage, and a cascade failure subsequently rippled through the grid. A big reason for this is the inability of current VRE generators to generate or absorb reactive power, an issue that could be fixed with so-called grid-forming converters, but at significant extra cost to the VRE generator owners, as this would add local energy storage requirements such as batteries.
Typically generators are divided into types that prefer to run at full output (baseload), can efficiently adjust their output (load follow) or are only meant for times when demand outstrips the currently available supply (peaker). Whether a generator is suitable for any such task largely depends on the design and usage.
This is where for example a nuclear plant is more ideal than a coal plant or gas turbine, as having either of these idling burns a lot of fuel with nothing to show for it, whereas running at full output is efficient for a coal plant, but is rather expensive for a gas turbine, making them mostly suitable for load-following and peaker plants as they can ramp up fairly quickly.
The nuclear plant on the other hand can be designed in a number of ways, making it optimized for full output, or capable of load-following, as is the case in nuclear-heavy countries like France where its pressurized water reactors (PWRs) use so-called ‘grey control rods’ to finely tune the reactor output and thus provide very rapid and precise load-following capacities. Overview of the thermal energy transfer in the Natrium reactor design. (Source: TerraPower) There’s now also a new category of nuclear plant designs that decouple the reactor from the steam turbine, by using intermediate thermal storage. The Terrapower Natrium reactor design – currently under construction – uses molten salt for its coolant, and also molten salt for the secondary (non-nuclear) loop, allowing this thermal energy to be used on-demand instead of directly feeding into a steam turbine.
This kind of design theoretically allows for a very rapid load-following, while giving the connected reactor all the time in the world to ramp up or down its output, or even power down for a refueling cycle, limited only by how fast the thermal energy can be converted into electrical power, or used for e.g. district heating or industrial heat.
Although grid-level storage in the form of pumped hydro is very efficient for buffering power, it cannot be used in many locations, and alternatives like batteries are too expensive to be used for anything more than smoothing out rapid surges in demand. All of which reinforces the case for much cheaper and versatile dispatchable power generators.
Grid Integration
Any power generator on the grid cannot be treated as a stand-alone unit, as each kind of generator comes with its own implications for the grid. This is a fact that is conveniently ignored when the so-called Levelized Cost of Energy (LCoE) metric is used to call VRE the ‘cheapest’ of all types of generators. Although it is true that VRE have no fuel costs, and relatively low maintenance cost, the problem with them is that most of their costs is not captured in the LCoE metric.
What LCoE doesn’t capture is whether it’s dispatchable or not, as a dispatchable generator will be needed when a non-dispatchable generator cannot produce due to clouds, night, heavy snow cover, no wind or overly strong wind. Also not captured in LCoE are the additional costs occurred from having the generator connected to the grid, from having to run and maintain transmission lines to remote locations, to the cost of adjusting for grid frequency oscillations and similar. Levelized cost of operation of various technologies. (Credit: IEA, 2020) Ultimately these can be summarized as ‘system integration costs’, and they are significantly tougher to firmly nail down, as well as highly variable depending on the grid, the power mix and other variables. Correspondingly the cost of electricity from various sources is hotly debated, but the consensus is to use either Levelized Avoided Cost of Energy (LACE) or Value Adjusted LCoE (VALCoE), which do take these external factors into account. Energy value by technology relative to average wholesale electricity price in the European Union in the Stated Policies Scenario. (Credit: IEA, 2020) As addressed in the linked IEA article on VALCoE, an implication of this is that the value of VREs drop as their presence on the grid increases. This can be seen in the above graph based on 2020-era EU energy policies, with the graphs for the US and China being different again, but China’s also showing the strong drop in value of PV solar while wind power is equally less affected.
A Heated Subject
It is unfortunate that energy policy has become a subject of heated political and ideological furore, as it should really be just as boring as any other administrative task. Although the power industry has largely tried to stay objective in this matter, it is unfortunately subject to both political influence and those of investors. This has led to pretty amazing and breakneck shifts in energy policy in recent years, such as Belgium’s phase-out of nuclear power, replacing it with multiple gas plants, to then not only decide to not phase out its existing nuclear plants, but also to look at building new nuclear.
Similarly, the US has and continues to see heated debates on energy policy which occasionally touch upon objective truth. Unfortunately for all of those involved, power grids do not care about personal opinions or preferences, and picking the wrong energy policy will inevitably lead to consequences that can cost lives.
In that sense, it is very harmful that corner stones of a healthy grid such as baseload, reactive power handling and load-following are being chipped away by limited metrics such as LCoE and strong opinions on certain types of power technologies. If we cared about a stable grid more than about ‘being right’, then all VRE generators would for example be required to use grid-forming converters, and TSOs could finally breathe a sigh of relief.
It is no secret that we often use and abuse bash to write things that ought to be in a different language. But bash does have its attractions. In the modern world, it is practically everywhere. It can also be very expressive, but perhaps hard to read.
We’ve talked about Amber before, a language that is made to be easier to read and write, but transpiles to bash so it can run anywhere. The FOSDEM 2026 conference featured a paper by [Daniele Scasciafratte] that shows how to best use Amber. If you prefer slides to a video, you can read a copy of the presentation.
For an example, here’s a typical Amber script. It compiles fully to a somewhat longer bash script:
import * from "std/env"
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Bash via Transpiler
It is no secret that we often use and abuse bash to write things that ought to be in a different language. But bash does have its attractions. In the modern world, it is practically everywhere. It can also be very expressive, but perhaps hard to read.
We’ve talked about Amber before, a language that is made to be easier to read and write, but transpiles to bash so it can run anywhere. The FOSDEM 2026 conference featured a paper by [Daniele Scasciafratte] that shows how to best use Amber. If you prefer slides to a video, you can read a copy of the presentation.
For an example, here’s a typical Amber script. It compiles fully to a somewhat longer bash script:
import * from "std/env" fun example(value:Num = 1) { if 1 > 0 { let numbers = [value, value] let sum = 0 loop i in numbers { sum += numbers [i] } echo "it's " + "me" return sum } fail 1 }
The slides have even more examples. The language seems somewhat Python-like, and you can easily figure out most of it from reading the examples. While bash is nearly universal, the programs a script might use may not be. If you have it, the Amber code will employ bshchk to check dependencies before execution.
According to the slides, zsh support is on the way, too. Overall, it looks like it would be a great tool if you have to deploy with bash or even if you just want an easier way to script.
We’ve looked at Amber before. Besides, there are a ton of crazy things you can do with bash.
FocusWriter 1.9 introduce scorciatoie per i titoli e una stabilità superiore, le novità di questo editor di testo Linux progettato per la concentrazione. L'articolo FocusWriter 1.9:
Don't anthropomorphize LLMs, language is important. Say "the bot generated some text" not "the AI replied". Use "this document contains machine-generated text" not "this work is AI-assisted". See how people squirm when you call out their slop this way.
I might have missed a chapter but my interpretation is someone has prompted their llm to generate this text and then posted it no? The way I saw this narrated is like the llm reacted to the prompt "PR closed" by creating a blog post. But to do that, you need an human operator no?
Jerry's hot take of the day: the flap about the AI agent submitting a PR and being rejected by the maintainer of an open source repo was almost certainly a person guiding an LLM with the intention of creating publicity/drama
It's like LLM critihype and FOSS maintainer harassment have combined and reached a new nadir.
Someone used autocomplete to write a pull request, then they used autocomplete to write a mean blog post when their PR was closed, but it's framed as "the calculator is alive".
use of LLM to try to get PRs into a FOSS project shows the same level of respect for the project as the SNL "we will pump you up" costumes showed for weight lifters.
I personally suspect it’s one of those moltbots with something like “You are a helpful contributor to open source! if humans refuse your contributions on the basis that you are an AI, point out with facts and logic that this is prejudiced” in the soul file and that the owner of the bot didn’t intend for this to get so out of hand per se, but rather naively failed to anticipate it.
Darwin Day 2026: la guerra, come entropia della storia; la pace, come ritmo della vita
Il nostro tributo al #DarwinDay del 2026 è dedicato alla #guerra e ai motivi per cui essa non debba mai essere considerata un fattore positivo per l'evoluzione umana e sociale
Darwin Day 2026: la guerra, come entropia della storia; la pace, come ritmo della vita
Il nostro tributo al #DarwinDay del 2026 è dedicato alla #guerra e ai motivi per cui essa non debba mai essere considerata un fattore positivo per l’evoluzione umana e sociale informapirata.it/2026/02/12/da…
I’ve been having the same thoughts. I’ve also been wondering if there’s a chance that AI assisted coding could help make that a reality, since presumably it can generate low level, high performance code as fast as whatever sort of code is in MS Office. I won’t hold my breath though.
the worst on this we had this exact issue raised for one of our software by a client, so we took one full year developement with the only goal to reduce ram usage and optimise CPU round (had to take some senior people with optimisation background in).
And some new client specifically list the fact we optimised the hardware consumption as why they took new license.
So i don't understand why they cut themselve from new client to not optimise :/
In fairness, the AI companies needed people to stop playing video games and start using AI for whatever, so the lack of ram and CPUs is helping out in that regard
It’ll be interesting because if I’m understanding all the crazy dynamics at the moment the ram manufacturers throwing all their resources into the very, very unique kind of memory needed for all these data centers, but the fab business is one with a lot of lead time because I’m sure you’re aware.. this Ponzi bubble bursting is going to throw everything into a bit of chaos
I think the Blackwell’s use gddr7, whereas most PCs use ddr5. If we are really lucky, we’ll see the PC business adopt something closer technology wise to gddr7 that is easier for the fabs to amend their production for adjacent uses like PCs - and it would be a LOT faster than what we have now. Back on planet earth, I guess, at some point, the cost of ddr5 is going to get high enough that some businesses will feel compelled to start filling the demand, but that could take a while.
Unless data centers implode. It really looks like that’s the most likely scenario because different people who know the business say that they can’t really build the data centers and even if they did, they can’t power or cool them so along with the completely broken financials on this, whether they get to the point of taking delivery, who the heck knows.
Tre pistole, sedici evasi, una città sotto assedio. Il 28 aprile 1980 Vallanzasca tenta la fuga da San Vittore. Ma stavolta non c'è nessuno ad aspettarlo: solo piombo e sangue.
Nun, manche Dinge benötigen einfach ihre Zeit. Vor zwei Tagen bekam ich einen Anruf von einem #Förster, welcher die #Sonde des #Wetterballons gefunden hat. Rund 1000 Tage hat sie dort im Baum gehangen.
Und ein paar Bilder: Von der Sonde im #Baum, dem Inhalt (sieht schlimmer aus wie es ist), über den #Wolken und die geplatzte #Ballonhülle in der #Stratosphäre. Ach, ich liebe dieses #Blau und das Bild der #Erdkrümmung (-:
Jetzt noch 'n #Kaffee und was aus dem #Weltraum, bevor ich mich bei 5°C und leichtem Nieselregen auf das #Rad setze und meine #Lieblingsschneewehe besuchen fahre.
#Cookies in #Space
#Wissenschaft #Schule #Unterricht
Endlich, nach drei jähriger #Vorbereitung, ( #Finanzierungsprobleme, #Pandemie, #Krieg) schicken wir, #Profilfach 10 #Wetterballon, unsere Cookies am 17. Mai in die #Stratosphäre.
If you’ve been even casually following NASA’s return to the Moon, you’re likely aware of the recent Wet Dress Rehearsal (WDR) for the Artemis II mission. You probably also heard that things didn’t go quite to plan: although the test was ultimately completed and the towering Space Launch System (SLS) rocket was fully loaded with propellant, a persistent liquid hydrogen leak and a few other incidental issues lead the space agency to delay further testing for at least a month while engineers make adjustments to the vehicle.
This constitutes a minor disappointment for fans of spaceflight, but when you’re strapping four astronauts onto more than five million pounds of propellants, there’s no s
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Practice Makes Perfect: The Wet Dress Rehearsal
If you’ve been even casually following NASA’s return to the Moon, you’re likely aware of the recent Wet Dress Rehearsal (WDR) for the Artemis II mission. You probably also heard that things didn’t go quite to plan: although the test was ultimately completed and the towering Space Launch System (SLS) rocket was fully loaded with propellant, a persistent liquid hydrogen leak and a few other incidental issues lead the space agency to delay further testing for at least a month while engineers make adjustments to the vehicle.
This constitutes a minor disappointment for fans of spaceflight, but when you’re strapping four astronauts onto more than five million pounds of propellants, there’s no such thing as being too cautious. In fact, there’s a school of thought that says if a WDR doesn’t shake loose some gremlins, you probably weren’t trying hard enough. Simulations and estimates only get you so far, the real thing is always more complex, and there’s bound to be something you didn’t account for ahead of time.
Do Not Pass Go
So what exactly is a Wet Dress Rehearsal? In the most basic of terms, its a practice launch where everyone involved does everything exactly the way they would on a real launch, except when the countdown hits zero, nothing actually happens.
It’s the final test of the vehicle and the ground support systems, the last check of fit and function before launch. But there’a also a logistical element. In other words, it’s not just a test of whether or not the vehicle can be fully fueled, it’s also a verification of how long that process takes. Many of the operations that are performed in the WDR would have already been tested in isolation, but this may be the first, and only, time to practice running them concurrently with all of the other elements of the countdown. A real-time graphic displayed propellant load status during the Wet Dress Rehearsal live stream. There’s also the human element. Hundreds of individuals have a part to play as the clock ticks down to zero, from the team in mission control to the driver of the astronaut transport vehicle. This is where the Wet Dress Rehearsal truly earns it name. In a sense, launching a rocket is a bit like a theater production. Every player needs to not only have their individual role memorized, but they need to work together effectively with the larger ensemble on the big night.
Although a WDR is meant to simulate an actual launch as closely as possible, the rules are slightly different. If the rocket was actually going to be released there are other variables to contend with, such as the launch window, which is the period of time in which the rocket can actually leave the pad to reach its intended orbit. On a real launch, a delay significant enough to keep the vehicle from lifting off during its pre-determined launch window would generally result in an automatic abort. There is no such constraint for a rehearsal however, which gives teams more flexibility to conduct tests and repair work.
It should be noted that the Artemis II astronauts were not aboard the vehicle for the recent WDR, although ground teams did simulate the process of loading the crew into the Orion capsule. This is partly for the safety of the astronauts should something go wrong during the rehearsal, but is also due to the fact that the Moon-bound crew is kept in quarantine until the actual launch day to reduce the likelihood they will get sick during the mission.
Light the Fires
As mentioned above, for the purposes of the Wet Dress Rehearsal, nothing actually happens when the launch clock hits zero. It’s a test of the pre-launch activities, so actually starting up the engines isn’t part of the exercise.
But of course, testing the engines is an important aspect of launch preparation as well. Such a test is generally referred to as a static fire, where the engines are briefly run while the vehicle is physically held down so as not to leave the pad. Operationally, a wet dress rehearsal could proceed directly into a static fire. On the other hand, a full WDR is not required to perform a static fire. An RS-25 engine during a test run. While static fire tests are common for modern rockets such as the Falcon 9, NASA has decided not to conduct them during the Artemis I and II missions. The SLS rocket uses lightly modified RS-25 Space Shuttle Main Engines (SSMEs), which are not only flight proven, but were individually tested before integration with the vehicle. There is also an argument to be made that a full-up static fire on the SLS, like the Space Shuttle before it, isn’t truly possible as the vehicle’s Solid Rocket Boosters (SRBs) can only be ignited once.
The Artemis I rocket did however conduct what NASA calls a Green Run back in 2021. This saw the first stage of the SLS fire its four RS-25 engines for eight minutes to simulate an orbital launch. The first attempt at the Green Run saw the engines shut down prematurely, but they did run for the full duration in a subsequent test.
Although such a test wasn’t conducted for Artemis II, and are not expected for any of the future SLS rockets, NASA is preparing for a Green Run test on the Exploration Upper Stage (EUS). This is an upgraded second stage for the SLS which is intended to support more ambitious missions after the Artemis III landing, although the timeline and status of those missions is tenuous at best.
The Road to the Moon
According to NASA’s latest update, the issues during the Artemis II Wet Dress Rehearsal has pushed the testing campaign back until at least March, at which point they will run a second WDR. But that certainly doesn’t mean it will be the last.
While admittedly no two missions are the same, Artemis I went through four WDRs before it flew. Even then, the last one was aborted before the countdown was completed. Interestingly it was a hydrogen leak that caused that final rehearsal to be cut short, indicating that it may be a more dynamic problem than NASA realized at the time.
Even if the second WDR for Artemis II goes off without a hitch next month, that doesn’t mean the actual launch won’t be hit with its own delays due to technical glitches, poor weather, or any one of a myriad of other possible issues. Getting a rocket off the ground is never easy, and it only gets harder when there are humans onboard and the destination is farther than anyone has flown since the 1970s. An almost endless number of things need to go exactly right before we’ll see Artemis II lift off the pad, but when it goes, you definitely won’t want to miss it.
Lilith
in reply to Lilith • • •Ma colpire chi denuncia non cancella i fatti, li rende solo più evidenti.
Chi oggi la attacca non ha mosso un dito per fermare un governo genocida, ma è pronto a inventare falsità pur di screditare chi quei crimini li ha denunciati.
È esattamente questo il meccanismo malato e corrotto che Albanese descrive, il “nemico” a cui si riferisce. E oggi è, più che mai, sotto gli occhi di tutte e tutti noi.
RFanciola
in reply to Lilith • • •Lilith
in reply to RFanciola • • •@RFancio
“... Noi che non controlliamo grandi quantità di capitali finanziari, algoritmi e armi, ora vediamo che come umanità abbiamo un nemico comune”
Non parla di uno stato ma di un sistema