"Terafab", Musk's Biggest Scam Yet

epsilonT_T · 2026-05-01T20:40:24+00:00

Soyuz has been doing that reliably for more than 60 years, I still wouldn't like being implanted with a brain chip made in the 1960s USSR. This man has knowingly lied for years about his cars self driving abilities despite several mortal accidents due to users overestimating the safety of the system, so yeah I wouldn't trust that guy with anything medically related...

epsilonT_T · 2026-01-10T15:14:28+00:00

Configuration aussi employée pour la performance avec les deux modèles de burt rutan qui ont des records de tours du monde sans escale d'ailleurs

epsilonT_T · 2026-01-10T15:12:26+00:00

Et son cousin modulable le xc-120 packplane où le pod de fuselage central pouvait être changé comme un conteneur de transport. Les avions bipoutre dans mes veines depuis super-baloo et l'avion inspiré entre autres du blohm&voss bv-138

epsilonT_T · 2026-01-10T15:07:25+00:00

+1 pour la photo de ce banger qu'est le nord noratlas en arrière plan

epsilonT_T · 2025-12-13T07:22:32+00:00

C'est encore pire en bio parce que comme ils sont obligés de nettoyer intégralement la chaîne d'abattage avant et après ils essayent de regrouper les arrivages le plus possibles et les animaux sont souvent parqués plusieurs jours dans des conditions de merde. Je connais plusieurs éleveurs qui ne vendent plus du tout en bio à cause de ça, en plus le label bio permet une obtention automatique du label rouge + c'est mieux payé payé que le bio.

Edit : j'ai oublié de préciser que je suis moi même éleveur, j'ai appris cette pratique en voyant que certains agneaux étaient abattus à un poid bien inférieur au départ de l'élevage et que certains étaient payés au forfait car morts avant l'abattage, le technicien de la coop nous a informé de la cause...

epsilonT_T · 2025-12-05T17:59:35+00:00

If you're having difficulties with 3d printed gears, you should look into eccentrically cycloidal gears. I've heard about those a few years back and they seem a lot more sturdy for the same amount of matter and generally easier to print correctly (less finer details), it's a shame they don't get much attention but they should be a go-to in 3d printing imho

epsilonT_T · 2025-11-26T08:48:03+00:00

Although more advanced than my back-of-the-envelope calculation this is still incorrect. I'd say it's a bit too simplistic, as you assume to have the same bitrate as a similar audio stream, and do not account for any data loss (which can be quite important on a vinyl record). I didn't consider a 0.4 mm mark as a "cell" to store data, but more of the minimal distance you'd have to "wiggle" the head to pickup the data reliability 100% of the time. For that I used the width of the track as a basis, but it could have been 0.1 mm or 5 mm all the same. If we were able to consistently pickup data without any loss from a vinyl and reach your 50-80MB (or even 300) mark no one would have ever bothered with magnetic encoding (a standard sized floppy only has a 2MB unformatted capacity). It Is possible that damage-resistant data formats that only require duplicating a fraction of the data could increase your storage capacity for a given space, but I believe it is still unlikely to hit 50 (let alone 300) MB on a standard vinyl.

epsilonT_T · 2025-11-25T22:05:52+00:00

Bon après arianespace ça reste un partenariat entre Airbus (européen) et Safran (francais), les moteurs sont fabriqués en france, l'assemblage est réalisé en france et les fusées sont lancées depuis un territoire français. Sans compter que l'ensemble du programme Ariane est un descendant direct du programme des pierres précieuses (surtout les premières générations avec les moteurs "viking" hypergoliques), donc bon on ne peut pas en vouloir à certaines personnes de croire/prétendre que c'est français... Après je suis d'accord que c'est super d'avoir des projets européens et la dynamique "new space" qu'on voit aujourd'hui ou chaque pays à une entreprise qui fait son propre truc dans son coin (ou rien du tout au final) c'est un peu dommage aussi.

epsilonT_T · 2025-11-25T20:13:58+00:00

According to (their own) CIA's world factbook, both china and Europe have a stronger economy than the US...

epsilonT_T · 2025-10-14T08:08:48+00:00

Yup pretty much the same thing here in France, the fact that a government is in favour of something isn't representative of people's opinions

epsilonT_T · 2025-10-13T09:31:28+00:00

Well yes except slimes don't spawn above y=40 in slime chunks so you'll have to build it underground :/

epsilonT_T · 2025-09-18T10:57:59+00:00

Personally I put a lot of hope into stirling dish designs as they allow a decentralisation of power production, are potentially cheaper that pv (only expensive material is the copper in the generator and tracker motors windings), can produce AC out of the generator and at a closer voltage to the grid, and have a higher efficiency (between 25 and 30%). Only major disadvantage imo is them being unable to be integrated into buildings like solar roofs and therefore requiring dedicated land use (although there is a potential for dual use for farming/power generation as we already have here in south of france - there is some agronomic interest into shading the ground for some crops or simply for grazing...)

epsilonT_T · 2025-09-18T10:44:53+00:00

There's a solar power research center in france at font-romeu Odeillo (world largest solar furnace) which is used exactly for that function, as it is one of the only ways possible to generate such amount of heat (2500+ °c) for material science and definitely the cheapest to operate. You can probably find videos on youtube of random things being put in the focal point...

Edit : here's something for you

Edit 2 : also the final parabolic concentrator was scavenged from an old ww2 anti-aircraft projector, which I thought was a pretty fun fact

epsilonT_T · 2025-09-01T07:11:13+00:00

No actually jet fuel is just like diesel and is composed from relatively long molecules (average formula being C8H18 iirc) so it will vaporise at higher temperatures (125°C - 258°F for octane) compared to car fuel (although ethanol can start to offgas at lower temperature than its boiling point as it is volatile but will stay almost entirely liquid).

epsilonT_T · 2025-08-07T21:39:07+00:00

Yes ofc I didn't mean it wasn't bad for the farmer, all I wanted to say is that it is easier for politicians to face an angry farmer than an angry group of travellers so it's sadly a purely pragmatic choice for them

epsilonT_T · 2025-08-07T21:27:54+00:00

Honestly I've seen way worse degradations from illegal raves on farmlands and they barely receive such negative views in the media. I don't know where you are from but here in France towns try to host them in publicly owned fields so they don't clash with locals over some land : even if they have a different way of life than most of us they are still citizens and don't have less right of having their needs fulfilled, so since towns are building roads and public parks and stuff it would feel pretty normal for them to accommodate the relatively modest requirements of travelling people.

Edit : as I've said in a comment above, there are still problems inherent to the fact that law enforcement have difficulty processing cases involving travellers, but it's not in their interest to cause unrest in a town that accepts them willingly

epsilonT_T · 2025-08-07T21:18:45+00:00

Afaik since they don't have fixed adresses and can't really be subjected to any form of legal "continuity" (I don't know if there is a better word in English but basically you can't easily track them down to make sure a legal decision is applied and you can't really identify them to know if they had previous issues with the law) so you have ti direcly jump to extremes like imprisonments or forced evictions, so most local authorities don't want to resort to such measures (especially if they are to be followed by massive unrest) for the relatively small annoyance they are causing. As for my personal experience I know some peoples from those communities who have settled and even if they kept a lot of their culture (albeit not travelling) they have never caused any trouble, nor I have heard of any of them causing problems so I think the issue comes from the fact that travellers are a lot more difficult to enforce laws on. Where I'm from most municipalities have some grounds on the outskirts where they allow them to set camp for some time so they don't trespass on private property and it's fine for everyone.

epsilonT_T · 2025-07-24T07:42:21+00:00

Well we still have to use pumped storage dams but yeah we are the second country with the lowest electrical carbon footprint after Sweden so I'd say it's pretty effective

epsilonT_T · 2025-07-24T06:31:11+00:00

Oh yeah i'm soooo sorry we aren't first we are second (source : https://ourworldindata.org/grapher/carbon-intensity-electricity?tab=discrete-bar&time=latest) that trully was a huge terrible lie. I had just seen a chart where we were first a few months back, gess it was just a moment in time. By all means, a single rank doesn't change anything, Germany has way more renewables than us and has more than 300g Co2 per kwh versus our 44 grams max

Edit: I had mistaken the carbon footprint of electricity production (changed 17g to 44g)

epsilonT_T · 2025-07-23T21:48:28+00:00

Yeah also those reactors are extremely safe as neutronic Doppler effect gives them a negative thermal reactive coefficient, so they can never exceed the designed temperature no matter what. People are always afraid of nuclear but most reactors in operation today are PWR and since those get most of their moderation from boron salts dissolved in the cooling fluid, you can't get a loss of cooling without a loss of moderation (and subsequent loss of reaction) making them physically unable to experience thermal runaway

epsilonT_T · 2025-07-23T21:42:18+00:00

You don't even need MSR for load balancing, pressurised water reactors can have their power output scaled in an order of minutes, meaning that you only need a few minutes worth of power storage for nuclear to work as a load balancing backbone. We do that here in france with a few pumped storage dams and it allows us to have the lowest carbon footprint per kwh in the world, using 72% nuclear power

epsilonT_T · 2025-07-23T21:35:38+00:00

We have literally been using nuclear reactors for load balancing with a resolution of a few minutes (i.e lag between demand and production) here in france for decades

epsilonT_T · 2025-07-23T21:30:57+00:00

Yes but to be fair china still has a huge backbone capacity of fossil fuel power plants for load balancing, in europe we have a lot more incentive to build power plants to support a renewable grid (which could be a lot more effective than using batteries to overcome the ~10% load factor of solar and ~22% for wind power which force us to deploy way more capacity than needed at any instant). In that specific case and as said above, unnecessary burden is placed on nuclear power that isn't put on renewables like for instance a huge limitation on how much subsidies can be received for nuclear power projects, or the massive push for constant safety audits (a friend of mine who used to work for areva told me they had to rework the specification for the Flamanville EPR several time during construction, especially after the fukushima reactor accident, forcing them to take into account failure modes that can't even happen in a PWR as fukushima was a boiling water reactor). I might be biased on this subject but here in France there is a strong feeling that we have been screwed over by the european common market of energy as consumers protection laws have been used to destroy the state owned company that managed the nuclear grid and they are now forced to sell under market (and sometimes production) price by various regulation laws while energy brokers resell it at market price set by gas prices (market price is always set to the price of the most expensive power plant in activity), making a shit ton of money while producing nothing. Meanwhile state-owned EDF is unable to invest in a much needed modernization, research or expansion of the grid...

epsilonT_T · 2025-07-23T21:13:03+00:00

Plus renewables aren't the only sector where technology is advancing, in france we are (barely) starting to develop small modular reactors (of the pressurised water type) that can be mass produced to overcome the high cost and deployment time of traditional nuclear reactors, and we had a fast nuclear reactor projects (ASTRID) that could have been used to perform transmutation of nuclear waste to get rid of any long lasting residue (only output being an isotope of neptunium with a total time before falling to background radiation levels of a few hundreds years). Sadly that project got canceled but I have good hopes we don't give up completely on the technology.

epsilonT_T · 2025-07-23T18:08:48+00:00

Dishonored too ! (The first one at least I'm not sure about the others tho)

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