SR

119 posts

SR

SR

@srbadri

Inscrit le Temmuz 2010
76 Abonnements7 Abonnés
SR
SR@srbadri·
@IndianTechGuide ... Is the cheapest existing technology. I posit that India not building copper cable infrastructure in the 90s wasn't because of some intelligent decision making on the government's part, rather, just taking advantage of already cheap enough technology. Economics drove that...
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SR@srbadri·
@IndianTechGuide The only wafer fab coming up is targeting 28nm as the smallest node. By the time this becomes operational, the 2nm or smaller will already be obsolete. At that point, the government will not invest several lakh crores in a new 2nm fab - they'll necessarily pivot to whatever 1/2
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SR@srbadri·
@NASA_Technology @NASASolarSystem Would you consider open sourcing the design (or at least a hobbyist version of it) like you did for the Mars rover? That would be amazing...
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NASA Technology
NASA Technology@NASA_Technology·
Could a jumping robot explore Saturn’s icy moon, Enceladus? 🪐 The LEAP robot is a bold mission concept that could hop across ice, jump through tall plumes and sample the subsurface ocean. See how LEAP could explore some of the most extreme terrain in the solar system: go.nasa.gov/4drj8TK
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SR@srbadri·
@AgnikulCosmos Is it too early to talk about projected SL and vacuum thrust figures based on these tests? Can you please disclose the design thrust figures?
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AgniKul Cosmos
AgniKul Cosmos@AgnikulCosmos·
Humbled to share that we successfully test fired 4 semi-cryogenic rocket engines simultaneously, as a cluster. All the 4 engines are 3d printed as single pieces of hardware - designed and manufactured in-house at AgniKul Cosmos Rocket Factory - 1. As with all our propulsion systems, these 4 engines are also powered by electric motor driven pumps. This test involved calibrating 8 pumps, 8 motors and tuning 8 speed control algorithms to work together in perfect sync to achieve uniform startup, steady state and shutdown performance across the entire system. As with the last cluster test, to the best of our knowledge, this is the first time such a test has been performed in India with semi cryogenic engines. We are extremely grateful to have the opportunity to be building world class, original space technology from India, for the world with the support of @iitmadras @isro and @INSPACeIND From here on, the addition of engines to our clusters will likely increase non-linearly. #Agnibaan #RocketEngineCluster #ElectricPumpFedEngines #Agnilet #SinglePieceEngine #3dprinting #RocketEngineTest #AdditiveManufacturing #Agnikul #AgnikulCosmos #StartupIndia #MakeinIndia #madeinIndiaForTheWorld @srinathr155 @moin_spm @satchakra_iitm @iitmadras @iitmrp @IITMIC @tdbgoi @IndiaDST @ANRFIndia @TIDCO_1965 @startupindia @TheStartupTN @Guidance_TN @startup_mission @SIPCOTTN
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SR@srbadri·
@DJSnM Or into each others chutes...
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Scott Manley
Scott Manley@DJSnM·
Regarding the F-18 crash, this is a much more informative angle, the wingman on the inside of the turn loses sight of the leader, ends up above and descends down into them, and the crew in the lead plane is lucky they didn't eject into the other aircraft. youtube.com/watch?v=6QlJrU…
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SR@srbadri·
@RichardShhakes @dirtman A million! <Derisive snort> try doing that with 10 grand in an SME in Europe. Literally the chain of approval being a person sitting in an office down the hall but taking twice as long...
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Richard Shakes
Richard Shakes@RichardShhakes·
@dirtman Blows my mind. When I got my first big budget, anything over 1 million went through some weird approval chain in SAP spanning South America. Would take over a week for a few people to click the buttons to approve a PO and send to my VP for final approval.
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Angus (dirtman)
Angus (dirtman)@dirtman·
WHY THE FUCK DO YOU NEED ME TO SEND YOU A PO TO MAKE THE ORDER HAPPEN??? WHY DOES THIS TAKE 3 DAYS!?!? LET ME PAY YOU FFS !! JUST PUT THE PARTS IN THE BAG ! sometimes its a real mystery how some companies stay in business, the bar so SO LOW man
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SR@srbadri·
@SciGuySpace The obvious de-risking path is to do the Artemis III Mission as stated but require the landers to perform one or 2 LEO missions with a fully functional ECLSS and, maybe docking with each other (both IDSS), and with a Crew Dragon (through an adapter) with astronauts...
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Eric Berger
Eric Berger@SciGuySpace·
NASA wants to fly Artemis III next year. But the longer NASA waits to fly Artemis III, the better chance it will have to fly with a higher-fidelity vehicle—that is, one closer to landing on the Moon than being a basic prototype. arstechnica.com/space/2026/05/…
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SR@srbadri·
@CJHandmer How would you prevent this mass driver from launching payloads that could attack the earth? Apart from making it "weak" that is, so it can't impart the required velocity... Is there a particular orientation/alignment that would ensure this?
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Casey Handmer
Casey Handmer@CJHandmer·
Writing about lunar mass drivers - what do you want to know?
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SR@srbadri·
@IndianTechGuide If it makes someone uncomfortable in the workplace, it constitutes harassment; the court should get involved only if complaints made to the HR/management go unheard, in which case the company should be held responsible. But I admit the reality is that it gets swept under the rug
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Indian Tech & Infra
Indian Tech & Infra@IndianTechGuide·
🚨 "Staring at a women colleague's body is unethical behaviour but it does not constitute the offense of 'voyeurism'" - Bombay High Court.
Indian Tech & Infra tweet media
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SR@srbadri·
@higgsyxh @CJHandmer Critical stuff USA buys from China: gallium germanium graphite antimony tungsten... From Russia: enriched uranium, palladium, platinum, fertilizers (simple answers from Gemini ...) Pots, black kettles ringing any bells?
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Casey Handmer
Casey Handmer@CJHandmer·
During the US revolutionary war, among others, it was a major point of contention that mercantilist Britain banned her colonies from manufacturing anything they could import from the mother country, thus ensuring they remained economically dependent and subservient, while extracting outrageous rents and controlling prices on imports of lower value raw colonial exports. Meanwhile, Australia has effectively turned itself into a Chinese colonial dependency, running the process in reverse.
Aus Integrity@QBCCIntegrity

China has cut Australia off for Jet A1 fuel (kerosene), all of next months shipments cancelled. Normally 12/month. There’s one ship inbound. That’s it. China is Australia’s largest Jet Fuel supplier.

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SR@srbadri·
@ChennaiREUpdate Could you also magic in a sidewalk and maybe a few people actually walking on them? Or maybe even the AI has given up on that 🤷🏾
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SR@srbadri·
@offl_naan @TamilNaduInfra Great, even less space and safety for pedestrians to walk 🙄 vehicles going at speed so close to the bus, pedestrians would be forced to walk on the road to pass the bus. How is this a good thing?
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Naan
Naan@offl_naan·
Exciting news! Tamilnadu government's new initiative "Ulavar Angadi" Mobile Market, offering budget-friendly options for everyone! 🛒💰 #Initiative #Market #Budget #VoteForDMK
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SR@srbadri·
@DJSnM How about slowing it down enough to make it orbit the moon?
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Scott Manley
Scott Manley@DJSnM·
So it’ll miss the moon by 40 minutes. But if we changed the orbital velocity by about 10cm/sec in 2028 we could make it hit the moon.
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SR@srbadri·
@AndrewParsonson This looks to be a study into repurposing European built modules originally meant for the lunar gateway which seems to have a high probability of cancellation, if the latest NASA plans are anything to go by
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SR@srbadri·
@cixliv @davidpattersonx The bigger delusion is thinking enough people would be crazy (or foolhardy) enough to live in a house roofed over by a humanoid robot 😁
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CIX 🦾
CIX 🦾@cixliv·
@davidpattersonx david you are delusional if you think humanoid robots are doing roofing in the next 5 years.
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David Scott Patterson
David Scott Patterson@davidpattersonx·
By 2030, all jobs will be replaced by AI and robots. Easily. The US labor force is about 170 million workers. About 80 million of those jobs include hands-on work. Automated systems can work four shifts a week. Replacing all physical labor would require about 20 million autonomous systems - including autonomous vehicles, automated equipment, and robots. That can be accomplished easily in the next four years. People saying it's not physically possible to build that many systems in four years are delusional. For comparison, 16 million cars were sold in the US last year. Cars are 20 times the mass of a humanoid robot. If robots were sold at the same rate as cars, that would be 320 million robots per year. Even a tiny fraction of that would be enough to replace all human manual labor.
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SR@srbadri·
@AndrewParsonson Will this reduce launch cost per kg though? Aren't composites much more expensive to manufacture?
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Andrew Parsonson
Andrew Parsonson@AndrewParsonson·
German composite specialist Herone has manufactured an initial full-scale demonstrator of a cryogenic line for the Ariane 6 upper stage, made from carbon fiber-reinforced PAEK. The project is being managed under ESA's Future Launchers Preparatory Programme and is part of a broader project to drastically reduce the mass of the rocket's upper stage to increase its payload capacity. Image credit: Herone
Andrew Parsonson tweet media
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SR@srbadri·
@AJamesMcCarthy @Erdayastronaut Saying "but it is cheaper than the Apollo program" is not a good argument. Look at the actual inefficiencies of the program on its own - then the relevant question becomes, "is this the best we can do"... Read Casey Handmer's blog if you have the time
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Andrew McCarthy
Andrew McCarthy@AJamesMcCarthy·
I’m feeling at a bit of a loss due to a general negative sentiment about spaceflight, so I wanted to give you a bit of perspective… In the 60’s, the entire world cheered on Apollo. Rightfully so, as it accelerated humanity forward into the space age. Grainy photos inspired millions, and the rocks brought back changed our understanding of the universe. But the program wasn’t perfect… it used over 4% of the entire federal budget, was incredibly dangerous by modern standards, and had questionable political motives. By comparison, the Artemis program is closer to .1% of the federal budget today, and is operating at safety margins that are significantly better than the missions during Apollo. This has of course slowed things down, but the result is a program that can survive in our challenging modern political climate. Yet in every post about it, I’m seeing constant negative comments. Most seem rooted in a lack of understanding of the mission goals, or why this is such a massive deal after literal decades of proposed returns to the moon that went nowhere. This is the first crewed mission in our triumphant return to the moon in over 50 years. Unlike the missions from the Apollo Era, there is a massive commercial industry capable of supporting our return to the moon, it’s not all resting on the taxpayer and Congress to fund nasa. We’re going back to the moon safer and with a significantly smaller budget than we did in the 60s, and this time, the inertia generated by this event isn’t entirely determined by politics. As I write this, private companies are building hardware to use on the moon, despite not being contracted by the government to do this. There is a trillion dollar industry waiting to build infrastructure on the moon. With the weight of a massive Earth-Moon economy looming, we won’t see that go away. This mission is the first major step towards our spacefaring future and I couldn’t be more optimistic about it. Go Artemis!
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SR@srbadri·
@SciGuySpace Did you mean coronagraph? The article mentions a chronograph
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Eric Berger
Eric Berger@SciGuySpace·
This really is an enormous gift to astronomy. Also, if Schmidt's team succeeds in building a Hubble replacement for hundreds of millions of dollars in a few years, it will completely change space science (for the better). arstechnica.com/space/2026/01/…
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SR@srbadri·
@CJHandmer Arabia Terra, Mawrth Vallis, Schiaparelli crater... All locations from the Martian 😇
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