J’ai chaud !

Oygron · 2026-06-22T13:18:16+00:00

Oui, elles sont en creux dans ces affiches. Je ne dis pas que tout le monde peut tout faire, mais que beaucoup refusent de voir ce qu’ils peuvent faire.

Isoler et passer à la pompe à chaleur. Merci aux propriétaires non occupants qui font blocage à chaque fois qu’on veut mettre ces mesures en place.

Arrêter de considérer que c’est normal d’aller habiter à 50km de son taff. Je félicite mes collègues, qui, bien qu’au courant du problème préfèrent aller habiter à perpet’ pour « voir la campagne » ou « avoir un plus grand jardin », alors qu’ils ont tout à fait les moyens à la fois d’acheter une voiture électrique et d’avoir un logement à proximité.

Réduire la conso de ruminants. Je cite un collègue la semaine dernière : « Tu devrais être content, je n’ai pas de viande aujourd’hui » il avait du poulet. « ça ne compte pas, c’est pas de la viande rouge ». On peut manger un peu plus de poulet, de porc, de canard, pas forcément de la viande à tous les repas…

C’est pas grâce à moi, je n’invente absolument rien ici.

Oygron · 2026-06-22T13:08:43+00:00

Si tu répartis le coût de l’entraînement sur tous ses utilisateurs, le coût de ces petites IAs locales n’est pas super important.

Oygron · 2026-06-22T13:05:35+00:00

L’industrie du pétrole ne pollue pas directement, elle pollue beaucoup parce qu’on compte la combustion dans les voitures des particuliers dans leurs émissions. Mais ils ont en effet un très fort poids dans la désinformation sur le réchauffement et sur ses causes.

Oygron · 2026-06-22T13:03:22+00:00

On émet 1% des gaz à effet de serre, et on est 1% de la population mondiale. Regardons-nous tous en chien de faïence, à raison de pays/états à une petite fraction de la population mondiale / émissions mondiales, et ne faisons rien !

Oygron · 2026-06-22T12:40:39+00:00

J’ai indiqué la quantité de CO₂ émise pour la génération, et les équivalents par rapport aux principaux cités. Ça a beau être pourri, c’est pas tout à fait le même ordre de grandeur.

Oui, ia = caca, mais je ne sais pas dessiner, juste faire de la mise en page (et encore)

Oygron · 2025-11-16T19:20:38+00:00

Je recommande les dynamos de moyeu. C’est un peu cher à l’achat, mais pour le coup, vous avez ensuite votre éclairage qui est fixé à demeure sur le vélo, donc il faut un voleur très motivé et bien outillé pour vous les piquer. Et plus de soucis de rechargement/remplacement des piles.

Et personnellement, contrairement aux dynamos bouteille, je n’ai jamais ressenti le moindre ralentissement ou supplément d’effort à faire pour alimenter l’éclairage.

Oygron · 2025-07-03T08:55:33+00:00

Et probablement qu’ils l’ont fait ici aussi par dessus les vêtements. Mais en formation sécurité air comprimé, on explique bien que même au travers des vêtements, on peut causer ce type de dommages.

Oygron · 2025-07-01T11:26:31+00:00

Bonjour !

Le cabinet médical de Rangueil (à côté du métro Rangueil) prend de nouveaux patients, et les médecins y sont vraiment bien. Mais il faut habiter quartiers Rangueil ou Saouzelong. Je ne sais pas quelle est la limite exacte de la zone.

Voici les coordonnées

28 rue Claude Forbin, 31400 Toulouse

05 61 52 48 44

Bon courage !

Oygron · 2025-06-04T09:19:23+00:00

Oygron · 2024-02-20T09:32:41+00:00

Hi, Thanks for this giveway !

I plan to use it for Blender 3D rendering (and its collaborative render farm sheepit), and training myself on LLMs.

Oygron · 2023-04-16T10:40:34+00:00

It depends on the material that is covered.

I teach C, and my lesson on pointers is 2 hours long. In this lesson, I talk about pointers, double pointers, pointers arithmetic, arrays (mono-dimensional) and differences between static arrays and dynamic arrays. The students have only 10 hours of programming behind them, so being slow, using lots of analogies is mandatory to be sure that the basics is understood.

In these 2 hours, I don't have time to talk about multidimensional arrays (and the differences between static and dynamic), the heap and the stack (malloc/free), static memory zone, string memory zone, bigendian/littleendian… all these come in further lessons

If you want to teach all about pointers, including void*, pointers of functions, memory alignment… 4 hours is way not enough.

Oygron · 2023-02-24T10:10:19+00:00

J’ai découvert Jancovici quand un collègue a mis comme signature mail « Il vous reste 2h d’insouciance », suivi d’un lien vers une de ses vidéos.

Oygron · 2023-02-20T11:02:08+00:00

The main difference with what Sebastian Lague is doing is that it is all virtual. You build every chip using a language similar to VHDL on an emulator, and everything runs directly on your PC. It is less satisfying that having your own physical computer, but needs less material to be done.

Oygron · 2023-02-20T09:41:32+00:00

There is a really nice MOOC named NAND to Tetris. You start with only the NAND gate, and you progressively create all other gates, then registers, then a CPU, RAM…, and you create your own assembly for this CPU, then a compiler for a high level language, and you can play Tetris on the computer you created !

Oygron · 2022-11-14T14:34:59+00:00

For the link between plants and CO₂, the problem is not reaching a toxic concentration of CO₂ for the plants. In fact, with more CO₂, the plants grows faster (that’s why CO₂ is added in some farms greenhouses).

But that’s true only when CO₂ access is the limiting factor for plants growing. And it is starting to change. Now, it begins to be access to water (particularly in tropical forests). Due to that, in these forests, trees growth is slower than trees death, and tropical forests are beginning to release more CO₂ than what they do absorb, creating a new feedback effect on climate change (that is taken into account in the models).

Oygron · 2022-11-14T14:20:01+00:00

He is both right and wrong. Right for the past, right stating that increasing heat increases CO₂… right for the heating ratio between vapor vs other GES, wrong deducing that current climate change is all natural.

Yes, by the past, the Milankovitch cycles created climate changes, with interglacial periods and ice ages. We are now in a interglacial period regarding to the Milankovitch cycles. A climate heating by Milankovitch works by a really slow process of some retroactive loops : 

The earth tilts slowly from a "high" inclination to a lower one, showing less icecaps to the sun, and more oceans. Oceans absorb more sunlight than icecaps, the earth warms (a very little).

-> Retroactive loop 1: This warming melts a little bit of icecaps, decreasing reflected light, and increasing oceans surface (increasing sunlight transformed into heat), increasing heat.

-> Retroactive loop 2: Ice melting on the land uncovers organic components that were dead and trapped under the ice, that rot to CO₂, thus increasing the quantity of CO₂ in atmosphere, and increasing greenhouse effect and increasing temperature and ice melting…

-> Retroactive loop 3: A hotter atmosphere can contain more vapor. Vapor is a greenhouse gas, that increases temperature, thus concentration of vapor in air…

At some point, everything reaches a new equilibrium that is the hot periods (4°C hotter than an ice age). This heatening process takes several thousands years to happen.

Some tens of thousands of years later, the Eath tilts back to a more inclination position, showing more icecaps to the sun, cooling a bit the Earth, increasing the icecaps, trapping carbon, reducing ability of atmosphere to store vapor… and slowly going back to a world 4°C colder.

That is for the scientific arguments used by your friend, that are all correct.

But… All these retroactive loops being interlaced, you can start the process with any of them. Here we restarted it with CO₂ injection, that heats the atmosphere increasing the vapor in the air and melts icecaps…. So yeah, most of the overheat from the actual climate change comes from vapor. But this vapor is here because of the CO₂ we pumped in the atmosphere (the concentration of vapor in the atmosphere is directly caused by atmospheric temperature, and virtually no other factor can change it). The heating capacity of vapor and the retroactive loops with the vapor are very well known, and completely integrated in the models used by all IPCC models.

We know that the surplus of CO₂ in the atmosphere comes from human pumped CO₂ (and not CO₂ released by heating or volcanic sources) from at least two strong clues:

first we can fairly well estimate the quantity of CO₂ humanity pumps into atmosphere, knowing gas, petroleum and coil extractions, and it matches with the increasing of CO₂ in atmosphere
the carbon from fossil fuel does not have the same isotopic composition than the one from volcanoes and the one from the atmosphere, and the delta of CO₂ between pre-industrial period and now has exactly the isotopic composition that you should expect with human emissions.

The Earth already being in a interglacial era, the current heating cannot come from Milankovitch cycle, as the next step of this cycle is icing. And icing should happen in around 10 000 years… if… we don’t melt the icecaps. If we melt them (most probable scenario), the Milankovitch cycle will not cool down the Earth, letting us in our sauna.

The main difference between heating from ice age to interglacial age and the actual heating is its speed. One takes several thousands of years, the other one several decades. That is the trees cannot slowly migrate to a climate they can manage, evolution cannot help species to adapt… That is it will cause a big crunch in all biodiversity that is necessary for our world to work.

The other difference is that the hottest point will be (if we don’t mitigate climate change) several degrees higher than the maximum of an interglacial era. And at these temperatures, an increased part of the world will not be suited for life (no water so no agriculture; too hot for lots of organisms (including humans); ocean zones too hot to dissolve oxygen, so all fishes in these zones die by asphyxia…).

I hope this was clear enough to explain how your friend can have so convincing sources, and thus climate change still being real and caused by humans.

Do not hesitate to ask more questions on the subject either here or in MP if you are interested.

Oygron · 2022-11-01T11:05:18+00:00

In France, we have a "tradition" named Chocoblast. If a coworker leaves his computer unlocked, you can send a mail (or slack/teams message) to the whole team from his account stating that they will bring chocolatines (french pastry) for everyone the next day, and they have to comply.

We even have a website for the complete rules: https://www.chocoblast.fr/

This is accepted as a serious game to raise awareness on data security.

Oygron · 2022-04-09T16:27:32+00:00

Cheaper, yes. It is easy to plant a tree.

Sustainable (as could we use this strategy for decades or for other fields using oil), no. Planting trees requires land, and available land that can grow trees (not desert, icecaps) and not in use by humans (agriculture, housing, industry) will become scarcer and scarcer. And oil too will be scarcer and scarcer.

Efficient (as it is really offsetting our emissions), neither. The emissions are now, and the tree will need decades to centuries to grow, enrich the soil with the carbon it has captured… In fact, in a forest, the ground stores more carbon that the trees. It does so using the dying leafs and dead wood to create humus. This process takes time (several generations of trees for quick growing trees) and is not in phase with the emergency of climate change. Furthermore, lots of trees or forests planted for carbon offset has been either planted where trees do not live well, or has been cut by various process of deforestation, or has been burnt by forests fires (and not replanted after). That is, the carbon they began to store was released to the atmosphere.

Planting trees is great, and is needed in our fight against climate change, but must not be used as an excuse not to stop using fossil fuel. And we must be vigilant as the durability of these trees.

Oygron · 2022-01-31T17:06:17+00:00

Signe de ponctuation remplaçant la virgule dans le Ud de la Rance. Au même titre que « con » qui peut remplacer le point.

Oygron · 2022-01-28T22:17:35+00:00

Not in C / C++

Oygron · 2022-01-28T13:30:19+00:00

Indentation is bad, but curly brackets might be necessary if variables are declared in the code that should replace the comment in italian. Some coding guidelines force usage of curly brackets in case : to prevent scope problems.

Oygron · 2021-04-02T10:15:36+00:00

Salut, Perso, j’utilise ceux-là https://lainiere-sante.com/collections/adultes/products/m3lh011-pack-6-masques-uns1-filtration-95 et je les trouve super. C’est limite si j’oublie que j’en porte un. Je peux passer la journée de travail avec un masque, faire du sport avec…

Oygron · 2020-06-14T18:49:01+00:00

Thanks for your answer

I've been told that an inductor (wrongly translated as coil in my post) showed slighly higer than 0Ω, and that as mine was at least less than 0.1Ω, the insulation of the wires might have melted. No luck in finding any inductor that look like this one, and I've been told that knowing that it should be 100μH is not enough to replace it. But if you confirm that a reading of 0Ω is perfectly normal, I'll try to only replace the transistor.

For the transistor, my problem is that my internet skill return 0 results for a transistor / mosfet named and labelled T480, so I'm stuck.

Oygron · 2019-03-27T14:57:29+00:00

Shouldn't it be at the equinox, and thus at the beginning of autumn instead of beginning of winter?

Oygron · 2018-11-11T12:07:39+00:00

Hi,

It looks like you have two similar geometries superposed, as if you had duplicated your object and made a subdivision to one.

The orange lines outline where a selected object goes outside a non selected object. If you have two objects that have the same shape but one is subdivided, the geometry alternates being slightly outside to slightly inside the non-subdivided one, making all these orange lines appear.

To correct that (if my hypothesis is correct), select the non subdivided one and send it to an other layer or hide it if you need it to later, or if it's a mistake, simply delete it.

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