surrealpartisan

joined 3 years ago
 

Recently, I finally started a hobby I've been thinking about for a long time, i.e., designing my own map projections. This one has such a simple but clever idea that I wouldn't be surprised to hear it's an already known one.

Basically, longitude is scaled by the cosine of the corresponding latitude, like in the sinusoidal projection. But then latitude is scaled by its own sine to avoid those sharp poles (and to emphasize the areas near the equator), and a constant to make it a circle.

So, does anyone know a pre-existing name for this? Alternatively, feel free to suggest a new name for it.

[–] surrealpartisan@lemmy.world 14 points 4 months ago (2 children)

Even though I find it likely that you detected an actual bias in the design of the meme, I don't see any explicit indications of Manjaro's, Fedora's or Alpine's genders.

[–] surrealpartisan@lemmy.world 4 points 5 months ago

Yes, you are mostly correct. In some sense, it is more a cultural thing. If your Arch breaks, the expectations for your ability to deal with it yourself are a bit higher. There are good instructions and people willing to help, but the latter (both inside and outside of Arch community, I think) may tell you that you shouldn't be using Arch if you don't meet their expectations.

Anyway, another aspect of it is the fact that with my system, I am a bit of a tinkerer.

[–] surrealpartisan@lemmy.world 14 points 5 months ago (5 children)

You know, the kind that insists on using Arch, despite being slightly (or more) below the skill level one should have before using it.

[–] surrealpartisan@lemmy.world 3 points 6 months ago

Ooh, thanks for the tag! This is great!

[–] surrealpartisan@lemmy.world 2 points 7 months ago (1 children)

That's interesting! My first, hasty reading of that was that the work would be done by the deceleration, but that must be wrong also, as the frame becomes inertial at the end of the acceleration, even at the full speed. So, I am still unsure where the work is done, but as far as I understand, this confirms my intuition that if some particles are brought back, the observer provides the energy needed for those particles to "become real" in the frame of reference of those waiting at home.

[–] surrealpartisan@lemmy.world 2 points 7 months ago (1 children)

Thank you for the correction (and the confirmation of the rest).

[–] surrealpartisan@lemmy.world 1 points 7 months ago (5 children)

You do make some good points, but also seem to have misunderstood a couple of fundamental things. I'll share my understanding, whatever it's worth. Basically every sentence below could be appended with "if I understand correctly", but I'll omit those as redundant.

There is an actual disagreement among physicists about whether things like virtual particles are "real" or just a notational convenience. However, the different notations are equivalent, and in a sense our models and notations is all that we humans have. There is no objective perspective to the world. But all this is philosophy, irrelevant to the actual measurable facts.

As I was taught on my first quantum mechanics course, any question about the interpretation of quantum mechanics can be answered with "shut up and calculate" (if asked by a theoretical physicist) or "shut up and measure" (if an experimental physicist).

But the consequences of the theory are measurable. The Unruh effect can be measured (an article was linked in another comment). Hawking radiation is an equivalent phenomenon and can also be measured (but IIRC hasn't been at least yet). And one way to describe Hawking radiation is with virtual particles coming into existence at the event horizon, one half of the pair falling in and the other escaping. There the escaping particle is as real as a particle can be.

The gecko comparison doesn't work. The reason for quantum fluctuation of zero-point energy not being harvested is not that it doesn't exist, it is that such harvesting is fundamentally impossible by definition (despite what some pseudoscientific interpretations claim). There are multiple arguments for this, on differing levels of fundamentality. The virtual particles are not energy coming from nothing, they are manifestations of the energy that is already there. And that energy can't be taken away from the vacuum, as it is already at the minimum level. That minimum just is non-zero. On a more practical level, any device, however optimized and whether manufactured or biological, would spend at least as much energy in the harvesting process as it would gain.

One might think that Hawking radiation goes against what I just said, but it doesn't. It is an integral part of the theory that the black hole loses equivalent mass (i.e. energy) as it emits. So the virtual particles don't create new energy. Still, they (or the same phenomenon described differently) are necessary for the mechanism of how that mass can escape the black hole. What I suggested in my original post, that the energy from the Unruh effect particles comes from the process of acceleration, is a similar idea (but a completely nonrigorous guess, so it might work differently).

[–] surrealpartisan@lemmy.world 1 points 7 months ago

The things I ran into were Nassim Haramein and his "International Space Federation" claiming to have combined quantum mechanics and general relativism and aiming to use that for harvesting infinite free energy from vacuum or something like that (and on the side also claiming that consciousness is a fundamental property of physics, of course).

There are about three practical ways to make measurements related to Unruh effect, I think. Black holes are one way, as Hawking radiation is an equivalent phenomenon. Another thing is studying some classical systems with equivalent phenomena, like sound waves in some fluids, IIRC. The third way is the particle accelerator approach used in the paper linked to in another comment. The experiment I suggested would be utterly impractical to actually perform, I think.

 

cross-posted from: https://lemmy.world/post/39777765

So, I was reading about the Unruh effect. In short, if I understood correctly, it is about a constantly accelerating observer finding particles in vacuum that an inertial (non-accelerating) observer wouldn't, and relatedly, measuring a higher temperature there than an inertial observer would. This is due to a combination of quantum and relativistic phenomena. There even seems to be recent empirical support for this, but as I was reading about it, I accidentally stepped into some pseudoscience, which left me in an emotional state where I find everything suspicious.

Anyway, even though I technically am a physicist, this is far from my area of expertise. I came up with a thought experiment and would like to ask a couple of questions related to it.

Let's imagine a spacecraft that does a little trip where it goes into open space accelerating enormously, then stops and comes back. My first question is this: would it be (theoretically) possible for the spacecraft during the acceleration to capture some of those particles that from an inertial perspective don't even seem to exist, store them and bring them back as a very concrete evidence of the Unruh effect? If not, why not?

Another question or two: is my intuition correct when I think that if those collected particles were converted into energy, it would in no situation be possible to gather more energy this way than would be spent in the process of accelerating the spacecraft etc? If yes, could one in some sense say that the energy put into the acceleration is what created those particles in the first place?

 

So, I was reading about the Unruh effect. In short, if I understood correctly, it is about a constantly accelerating observer finding particles in vacuum that an inertial (non-accelerating) observer wouldn't, and relatedly, measuring a higher temperature there than an inertial observer would. This is due to a combination of quantum and relativistic phenomena. There even seems to be recent empirical support for this, but as I was reading about it, I accidentally stepped into some pseudoscience, which left me in an emotional state where I find everything suspicious.

Anyway, even though I technically am a physicist, this is far from my area of expertise. I came up with a thought experiment and would like to ask a couple of questions related to it.

Let's imagine a spacecraft that does a little trip where it goes into open space accelerating enormously, then stops and comes back. My first question is this: would it be (theoretically) possible for the spacecraft during the acceleration to capture some of those particles that from an inertial perspective don't even seem to exist, store them and bring them back as a very concrete evidence of the Unruh effect? If not, why not?

Another question or two: is my intuition correct when I think that if those collected particles were converted into energy, it would in no situation be possible to gather more energy this way than would be spent in the process of accelerating the spacecraft etc? If yes, could one in some sense say that the energy put into the acceleration is what created those particles in the first place?

[–] surrealpartisan@lemmy.world 2 points 10 months ago

Suomi mainittu, torilla tavataan!

Anyways, this is a really good translation, although all those "spread" things could use more idiomatic single-word translations. I applaud!

Vocative is an interesting thing. When I first read about it, I dismissed it as useless. However, since then I have used it in my largest conlang project Shiofaioth (linked to in another comment) and also here, because it's just so nice.

[–] surrealpartisan@lemmy.world 1 points 11 months ago

Thank you for your interest! There are couple of ways in which I try to accomplish that goal. First is the verbal pre- and postpositions, which force you to be open about your sources and the degree of voluntariness of what you describe (of course nothing prevents straight up lying, but at least whatever you claim is explicit and ready for inspection). There's another thing that I now realize I haven't even documented yet, even though it has been one of my main ideas. That is the lack of single word ways to say one "must" or "should" or "may" do something, with the expection being taht you explicitly say who orders or allows the action. Of course there are always ways to go around this, but the aim is that if you try to hide authority behind words, it would be clunky and noticeable.

[–] surrealpartisan@lemmy.world 1 points 11 months ago (2 children)
[–] surrealpartisan@lemmy.world 2 points 11 months ago

I applaud your effort in translating that. Your translation does not perfectly match my original intentions, but it is close, and I guess there is supposed to be a subjective aspect to these things.

Anyway, I'll send you a link to our Discord.

 

So, I've been toying with this idea of applying the anarchist concept of means ends unity to art (to be honest, mainly as a theoretical justification for doing what I wanted to do anyway). So, if you want to do art, and especially anarchist art, shouldn't your tools also be artistic and preferably anarchist?

I'll give an example. Poetry is art. Tools of poetry include things like language and font. Constructed languages can be seen as art projects, and they can implement and emphasize the values of anarchism. Fonts are also art projects and they can for example be inspired by anarchism and be freely distributed etc.

Other examples could include making specific image manipulation programs and algorithms and creating new image formats for visual arts, making esoteric programming languages for programs etc.

So, my idea is starting an avantgarde group/movement where we make art with artistic DIY tools and document the process in the art itself so that it doesn't hide its structure but shows how it was made.

Attached is the first poem I made specifically with this project in mind. But of course, not everything we produce as a group needs to resemble these little examples I came up with. The main thing is to try to break the expectations of art (if such a thing is possible anymore) and also to be an anarchist.

If any of this inspires you, hit me up. Perhaps we can start the group together.

 

So, I've been toying with this idea of applying the anarchist concept of means ends unity to art (to be honest, mainly as a theoretical justification for doing what I wanted to do anyway). So, if you want to do art, and especially anarchist art, shouldn't your tools also be artistic and preferably anarchist?

I'll give an example. Poetry is art. Tools of poetry include things like language and font. Constructed languages can be seen as art projects, and they can implement and emphasize the values of anarchism. Fonts are also art projects and they can for example be inspired by anarchism and be freely distributed etc.

Other examples could include making specific image manipulation programs and algorithms and creating new image formats for visual arts, making esoteric programming languages for programs etc.

So, my idea is starting an avantgarde group/movement where we make art with artistic DIY tools and document the process in the art itself so that it doesn't hide its structure but shows how it was made.

Attached is the first poem I made specifically with this project in mind. But of course, not everything we produce as a group needs to resemble these little examples I came up with. The main thing is to try to break the expectations of art (if such a thing is possible anymore) and also to be an anarchist.

If any of this inspires you, hit me up. Perhaps we can start the group together.

 

This network shows the frequency each pair of characters interacts in The Tortoise Webcomic strips from 1 to 66. Thicker line means more interactions.

The Tortoise Webcomic can be found at https://thetortoisewebcomic.net/ and in Lemmy at !thetortoisewebcomic@lemmy.world.

EDIT: Changed the picture, as there was a mistake in the data.

 

Furchtbar is a Frankensteinian esolang, stealing ideas from other esolangs for maximized horribleness.

 

Now is a good time to catch up with the archives: https://thetortoisewebcomic.net/

Fediverse links (will soon be added to the website): Lemmy: https://lemmy.world/c/thetortoisewebcomic Mastodon: https://comics.town/@thetortoisewebcomic

 

Golem: A Self-Made Person! is a traditional roguelike with a twist. In it, you slay enemies and incorporate their parts to your own body.

Golem is made with Python, using pygame and Pygcurse. I'm not following any tutorial or using any premade roguelike library, so it's mostly made from scratch.

Try the alpha version now.

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