zksmk

joined 2 years ago
MODERATOR OF
[–] zksmk 2 points 2 years ago

Yeah, and even poorer to mid rich countries (that have hydro potential) can rely on it, locally, with no need to import solar panels, for example. Albania, for example, is 100% renewable, and has been for decades, thanks to hydro.

Sucks you can't build hydro everywhere. I kinda wanna see more "run of the river" type of hydro. I think there's more potential for that, and it's less damaging to the surroundings. It's intermittent tho. I'd love to see it locally in my region, I think it could work.

[–] zksmk 3 points 2 years ago* (last edited 2 years ago)

There are many reasons for and advantages to it!

The molten salts mixture is multi-purpose, it serves both as the coolant and contains the molten radioactive fuel in this type of reactor, compared to more conventional reactors that use solid uranium rods as fuel, and regular water as coolant.

Most of the dangers with conventional reactors stem from the high pressures of the coolant steam, as well as the build up of high pressure gases next to the fuel, which in the case of an unattended runaway reaction tend to break things and cause radioactive juices to splatter all over the place, in the ground and in the atmosphere. And then the uncooled fuel also melts through the protective barriers, with the same effects.

Salts, on the other hand, don't evaporate at 100 degree Celsius, one atmospheric pressure, like water does, so they can get heated to much much higher temperatures at normal pressure. And considering they contain the fuel too, if they expand a bit, they pour out of the core into a safety container, and therefore separate most of the fuel away from itself, and therefore stop the radioactive runaway reaction.

The fact that the fuel is liquid also makes the fuel reprocessing and refueling easier (can even be done while it's turned on), which is very important when dealing with all the radioactive intricacies. It even lets us use a different more abundant and in some ways cleaner fuel, thorium, instead of direct uranium, because it being liquid lets us turn it into uranium "on the fly" inside of the reactor itself, this is called "breeding" uranium, which simplifies the entire process immensely.

The big downside is, well, hot molten salts are extremely corrosive, as you can imagine. And that's why we haven't had reactors like this so far. This one is also experimental.

For more fun reading: 1, 2

[–] zksmk 2 points 2 years ago

Now that's the kind of success story I want to hear more about!

[–] zksmk 8 points 2 years ago (2 children)

And another great thing about LFTRs is that they don't use water as coolant, so they can safely operate in situations of drought, and even in deserts.

A powered grid that would utilize mostly this type of reactor wouldn't face the types of problems the French grid did during this summer's heat waves.

All in all, a promising technology.

[–] zksmk 7 points 2 years ago (1 children)

I'd say yes. On the same note:

Should the study of non-Western history be a requirement for a history degree in the UK?

Also yes.

Even if it were specialized as a western history/philosophy degree, and not just a general history/philosophy degree, some level of knowledge should still be required (and probably is already, I wouldn't know).

[–] zksmk 1 points 2 years ago* (last edited 2 years ago)

I'd like to reference this blog post by the mastodon devs from a few days ago. Joinmastodon.org just had a redesign/relaunch. Considering they're further ahead in the same game, there's probably some useful insight that can be gleaned from there.

[–] zksmk 3 points 2 years ago* (last edited 2 years ago)

I'd just like to take this one step further and say that color has nothing to do with electromagnetic radiation and its wavelengths. Not at its core.

You could easily have a robo-eye that reacts to water waves or anything else that might carry similar information and converts it into a bio-chemical signal that goes into the optical nerve and into the brain and you'd see color. In fact, you can see color in your sleep/dreams with no input from outside the brain. Or less abstractly, you can see flashes of color with your eyes closed after going in a dark room after being in a bright space, because of the state of the ”irritated” chemicals in the back of your eyes. The subjective perception of color, the qualia as it is called, is something that correlates in the physical world, or has its physical correlate (noun) only to something in the brain. The EM waves are just carriers of information that supply us with information that gets experienced as color once it finds it's appropriate home in the information structures of the brain, and the mind.

Another example of this is how people with amputated limbs can feel "phantom pain" sometimes in the non existent body parts, because the stump nerve is being appropriately irritated to send a signal to the brain, that becomes pain in the brain, independently of the existence or non-existence of the body part.

Same with irritating the ear bones, without any air waves, as with tinnitus. The air waves just carry the info usually, they're not sound itself.

You can indeed hear EM waves' info too, not see it, just listen to a radio.

Shape is something we experience because of the existence of space, the perception of the "category", the concept of space in the mind.

Which one is more fundamental depends, I guess, which one you believe is more fundamental, if any, quality or concepts, perception or reason.

This would be of equal true value, whether you label things as a materialist or as an idealist, just label it then as, let's say, matter arrangement, or laws of arrangement. Or maybe simply, matter and spacetime.

I'd say they're of equal footing, and don't quite go, one without the other, in the human mind, or the physical world, as we know them.

[–] zksmk 1 points 2 years ago (1 children)

Given that 16 of them already exist, I sure hope they do!

[–] zksmk 1 points 2 years ago* (last edited 2 years ago)

Types of platforms, not shown in the above video:

[1] [2] [3]

The sheer size of these things, specifically the "jacket" type: https://i.imgur.com/pj0qsN4.gifv

[–] zksmk 4 points 2 years ago* (last edited 2 years ago)

As far as I understood it, and based on that one sample video, these videos mostly deal with and spotlight the usage of logical fallacies and manipulation tactics, used by any ”side” engaged in a misinformation campaign. So the only way they could be biased is by the generalised examples they use to explain the concepts, which should be minimal, if the people watching them actually do learn a new skill that can be applied to various scenarios (even the prebunking videos themselves!).

I really like this, and hope it kicks off, and doesn't get corrupted too much. It's teaching people critical thinking skills, and even more importantly imo, more emotional self-awareness.

[–] zksmk 7 points 2 years ago* (last edited 2 years ago) (1 children)

Huh, now I wanna know if arctic foxes also have fur on their paws to protect them from freezing ice and snow as well... brb, gotta do a lil search.

Edit: reporting back with my findings, it's true! Furry little paws.

 

Some key points:

  • nuclear causes fewer deaths, both animal and human alike
  • nuclear takes up far less space, and therefore destroys far less of the environment compared to solar farms, hydro, or wind farms
  • nuclear is stable and not an intermittent source, no issues with grid storage, unlike renewables, which currently solve this with fossil peaker plants
  • nuclear is hard to turn off so to meet fluctuating demand solely on it, you'd need an excess of nuclear, which is a waste
  • nuclear excess could encourage other use of electricity, such as electric heating or transport, however
  • nuclear when it does go bad, goes really bad, mostly in that a large area has to be abandoned for a long long time (historically still fewer deaths than renewables per unit of energy produced tho)
  • nuclear can cause the proliferation of nuclear weapons
  • nuclear is a lot harder to spin up, requires extensive education and is hard and takes a long time to build a plant, compared to renewables
  • all that nuclear waste and no plan other than shove it in somewhere, in a mountain, and keep it secret, keep it safe.

Yay or Nay?

What say you?

 

Instructions are in the this ticket: https://github.com/dracula/freecad/iss...

 

If you are using Ubuntu Studio 21.10, and if you have not already done so, please upgrade to Ubuntu Studio 22.04 LTS via the instructions provided here.

1
submitted 2 years ago* (last edited 2 years ago) by zksmk to c/energy
 

Perovskite structures are notorious for breaking down very rapidly in real-world use. Now a research team from Princeton University has developed a process for overcoming that problem, making perovskite a real competitor to existing silicon PV technology.

 
3
Behind the Scenes: Mushroom Spirit (www.blendernation.com)
submitted 2 years ago by zksmk to c/fossart@lemmy.ml
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