solbear

joined 2 years ago
[–] solbear@slrpnk.net 2 points 1 week ago* (last edited 1 week ago)

Thanks! Yeah, I honestly find that (in my experience) university courses also often tend to get bogged down in examples too far detached from the observable physical world, which can make them demotivating. In my time at the university, I especially found the mathematics courses lacking, as they would focus almost entirely on formal descriptions and rote learning, and avoid using proper examples on the applications of mathematics in the real world. I'm a trained engineer/scientist, not a mathematician. It is the universal language used to describe so much, and yet I would spend my time solving Fourier integral after Fourier integral, not really understanding what I was really doing until it showed up in a physics course later on and within 20 minutes I would have a much better intuition of what I was spending 6 months trying to learn before.

And regarding beta-reading - that could be useful in the future, but as I said, it is first and foremost a personal project for my own enjoyment. But if it turns into something that looks like it could be of value to others as well (i.e. structured, coherent, complete and factually correct enough), I might prioritize trying to get that to a publishable state.

[–] solbear@slrpnk.net 2 points 1 week ago

This looks pretty cool - I will want to look into this later.

Anyone familiar with this CERN license for open source hardware?

[–] solbear@slrpnk.net 5 points 1 week ago (1 children)

So not just sales, but the actual use of them? I've only ever been to Hanoi once many years ago, but there was an enormous amount of gasoline-powered motorcycles there then that would need replacement. I guess their domestic Vinfast brand will see a surge in sales in anticipation of this legislation, but the transition might even be well on its way?

[–] solbear@slrpnk.net 2 points 1 week ago

Is your subjective position a part of the project, or just a starting point?

I have no real prior knowledge of biology, neuroscience, psychology or anything related to this, and I don't want to include anything I would need to research from scratch. So I guess the starting point is to draw a line from my eyes to whatever I see first :) Then I will attempt to keep topics as separate as possible so they could be enjoyed on their own, and where a topic is completely dependent on some prior knowledge from another part of the book, it will come after and with references to which parts would need to be read and understood first. Or that's the initial plan anyway

[–] solbear@slrpnk.net 4 points 1 week ago* (last edited 1 week ago) (6 children)

Gone are the days when I had to do science writing as part of my job, so this is entirely a pet project, and I avoid committing to releasing anything to avoid it becoming another deadline in my life. If I lose the motivation to work on it, I will take a hiatus and get back to it if and when I am ready. There are enough things in my life that are not like this, so why add to that list?

The project is essentially to write up a coherent picture of the observable, physical world (from where I am sitting and looking out the window) and their associated physical processes. So essentially everything from the fusion reactions of the Sun, to the scattering of light in the atmosphere, to the colors of things, weather phenomena such as rain, fog, lighting, the sounds moving through air and through media, the relative movements of Earth, the Moon, the Sun and the stars etc. I have a PhD in a natural science discipline, and have touched upon most of this in my studies, but have 1) forgotten a lot of it, 2) have some big holes of topics I never learnt (fluid dynamics being one of them, optics being another) and 3) have probably a bunch of misconceptions originating from a misunderstanding at the time I originally learnt it.

So it is a quest to relearn and document this stuff in a way that is for my enjoyment and not for passing an exam or getting a paper published.

Also, this is more the gearhead / process obsessive in me speaking, but I’m interested if you’re using any kind of special organizational tools or “knowledge base” in your writing.

I write in LaTeX, keep my references in Zotero and will use Obsidian for notetaking during research prior to writing it up.

[–] solbear@slrpnk.net 4 points 1 week ago (9 children)

I have just today started on a scientific book project I've been wanting to write for some time. It is a very long term project, and my main goals are 1) to have fun researching and writing and 2) document my research for my own enjoyment down the line. If this becomes a coherent work eventually, I will aim to release it under some CC-license, although this is not my main goal.

It's off to an enjoyable start at least :)

[–] solbear@slrpnk.net 1 points 2 months ago (1 children)

Thanks for a thorough answer. I was not aware LECA would be able to act as a wick to any required degree, but that could be a good solution. I'm having some difficulties picturing exactly what you are suggesting with the LECA drainage layer - do you mean in the soil compartment? And then LECA in the wicking baskets with some polyester cloth going from the soil and into the baskets?

I have seen many videos doing it exactly like I do incl soil in the wicking baskets (which is why I went with it), but you are saying that is a fundamentally wrong way to go about it?

 

I have tried to make some self-watering plant boxes where I 3D-print some containers with holes to act as wicks to absorb moisture into a top container with soil. The wicks themselves are packed with soil.

However, some white mold quickly builds up around some of the holes (fairly self-limiting though, it does not get much more than what you see in the attached picture after some days since I first noticed it). I emptied the water and re-cleaned the box, and wiped off the wicks. The existing water had a slight sewage smell to it.

For now, the boxes are directly exposed to light, but will be built in by a wooden enclosure in the "final product".

  1. Should this be of any concern for the plants growing in the soil? They will be edible greens.
  2. Can I avoid this, while still using my 3D-printed parts?
[–] solbear@slrpnk.net 1 points 2 months ago

There's a mismatch between the link and the title. Nothing about Paxster in the article.

[–] solbear@slrpnk.net 3 points 3 months ago (1 children)

Did you opt for branded, more expensive grow lights or buy from e.g. Aliexpress or similar?

 

I recently freed up some space indoors to form a seedling station that will allow me to transfer plants out on the balcony during the growing season in my country, and for indoor pots in the off-season. It is a two-story shelf on the top of a cabinet.

However, there's no windows in this room, so I need some grow lights, and I require these lights to be controllable from Home Assistant. I had originally thought I could just use a microcontroller flashed with WLED and connect some LED-strips to this, but apparently it is only compatible with these ternary output LED-lights and not any full-spectrum LED strips.

Ideally I would be able to have control over sectors (at least two in each story) and be able to tune the red:blue ratio. However, I will be happy if I can land on a solution that allows me to control each story independently, which I guess I can achieve with a regular system connected to a Zigbee switch or something like this.

I found tons of these full-spectrum LEDs on Aliexpress for fairly cheap, but I am inherently skeptical about buying anything from here from a quality and safety perspective, and especially stuff connected to mains.

Anyone here have a sweet setup for this they'd like to share?

[–] solbear@slrpnk.net 4 points 3 months ago* (last edited 3 months ago)

Wow, this is impressive! Good job! I've just got started planting on my balcony this year, but will not get near your level of vegetation.

[–] solbear@slrpnk.net 2 points 4 months ago

No need to get so agitated. It was not criticism, it was merely a suggestion.

Never did I say you are required to add any additional comments, but I suggested it as something that would be helpful for others to decide whether or not they should spend time reading it.

Never did I say that you have to explain why it should be read, simply that it would be helpful (and interesting) to hear your thoughts on why it is a good read.

It is a long text - you spend a non-negligble part of your free time reading it through. I read quite a lot, and I have quite a lot of unread texts I also want to read. I enjoy Lemmy because I get exposed to many texts I wouldn't otherwise find, and I am open to having new texts skip the queue if they seem interesting. But I do not have unlimited time to read everything that is posted. It would have helped me to decide whether to read it if there was some more information about the piece. Hemce the suggestion.

 

While English is still the de facto lingua franca, with the US burning bridges to Europe like there's no tomorrow, and the UK having left the EU, should they adopt an easy-to-learn auxillary language?

I'm thinking of an language like Esperanto, but not necessarily that. I was intrigued by Esperanto and went through the course on lernu.net and found it easy to pick up (though I am by no means fluent yet). While it is constructed, it was developed without any modern linguistic knowledge, so another option could be to construct a new language for this purpose, or adopt another already developed language that would serve the purpose better (I don't have an overview of what is out there).

I know there are several official languages already, but I imagine that leads to a lot of overhead. An auxillary language could make communication easier, and make it easier for citizens of any member state to participate in the Union, and would to some extent remove any power asymmetry resulting from native mastery of a language.

Good idea? Poor idea? Why? Why not?

 

I'm launching a little balcony gardening project that involves water reservoirs. I don't have much experience with these kinds of projects, so I need a little help.

Due to some dimensional constraints, I will need two regular plastic containers (your typical storage containers), and I was hoping to get away with only including a way to fill one of them. That means I will need to connect it to the other in some way. So I thought I would just drill a hole in both of them and stick a pipe between them.

  1. What is the best way to drill holes in plastic without risking any splitting?
  2. How do I make sure that the holes are water sealed afterwards? Can I glue around the pipe and plastic box?
 

cross-posted from: https://slrpnk.net/post/7559522

I want to write a novel that takes place sometime in the latter half of this century (let's say 2075), where the premise is that we've more or less achieved what could be described as a Solarpunk society globally, albeit not a perfect utopia. I am just an amateur, so don't hold your breath for the next literary masterpiece, but I am hoping that, if finished, it could at least inspire some people to envisage a better future. The novel itself will only use this as the setting, as a contrast to the often bleak and dystopian visions of the future - the plot will not be related to how this was achieved.

I am currently looking for inspiration for the world-building. What have happened between now and then on a big scale, particularly in terms of geopolitics? How did the tensions of today resolve so that we eventually landed in a Solarpunk society? I am happy to read both critical analyses of probably futures as well as speculative fiction on what could become, but that still remains rooted in the realm of the possible. The world should be mostly stable at the point of the novel, but many turbulent things could've happened on the way there.

A few examples of things I am looking for:

  • Which regions/peoples gained independence? Are The Republic of Ireland and Northern Ireland reunited, is Scotland independent from the UK, is Catalonia a sovereign state? Other examples outside of Europe?
  • How have e.g. the African Union and/or the East African Federation progressed, and what role do the play on the global scene? What about other would-be superpowers?
  • How did what today looks like an uncrossable divide between the left and right in the United States resolve? Was there ever a new civil war? What did that look like? Are they still united? Any new states?
  • Has the United Nations undergone any changes to become a more effective organization?

Have you read or seen anything like this that you could share? Articles, books, movies, TV-shows etc.? Do you have any thoughts of your own you would like to share?

 

I want to write a novel that takes place sometime in the latter half of this century (let's say 2075), where the premise is that we've more or less achieved what could be described as a Solarpunk society globally, albeit not a perfect utopia. I am just an amateur, so don't hold your breath for the next literary masterpiece, but I am hoping that, if finished, it could at least inspire some people to envisage a better future. The novel itself will only use this as the setting, as a contrast to the often bleak and dystopian visions of the future - the plot will not be related to how this was achieved.

I am currently looking for inspiration for the world-building. What have happened between now and then on a big scale, particularly in terms of geopolitics? How did the tensions of today resolve so that we eventually landed in a Solarpunk society? I am happy to read both critical analyses of probably futures as well as speculative fiction on what could become, but that still remains rooted in the realm of the possible. The world should be mostly stable at the point of the novel, but many turbulent things could've happened on the way there.

A few examples of things I am looking for:

  • Which regions/peoples gained independence? Are The Republic of Ireland and Northern Ireland reunited, is Scotland independent from the UK, is Catalonia a sovereign state? Other examples outside of Europe?
  • How have e.g. the African Union and/or the East African Federation progressed, and what role do the play on the global scene? What about other would-be superpowers?
  • How did what today looks like an uncrossable divide between the left and right in the United States resolve? Was there ever a new civil war? What did that look like? Are they still united? Any new states?
  • Has the United Nations undergone any changes to become a more effective organization?

Have you read or seen anything like this that you could share? Articles, books, movies, TV-shows etc.? Do you have any thoughts of your own you would like to share?

 

I'm in my early thirties and adamantly childfree. I'm lucky enough to be in a long-term relationship with someone who brought up her desire to be childfree on more or less our first date. But I am not having too much luck with my friends from childhood and university - they all seem to be wanting kids, and learning of their pregnancies leaves me with a feeling of sadness. I don't hate kids and think no one should have them, and I am happy for them if they truly wanted this, but I also know what them having kids will mean - we are essentially putting our friendship on hiatus, and I still don't know whether waiting 10 years for the kids to be a bit more independent and not requiring as much attention will mean I suddenly have friends again, but somehow I very much doubt it. And I also don't want 10 years without other friends than my girlfriend. She is in very much the same situation, and while we are good at making the best out of not having kids and stressing about having them, we both would want to be able to hang out with good friends once in a while, both common between us, but also some that are exclusive to each of us.

My assumption is that this is quite common - so I am hoping someone would like to share some success stories in turning this situation around. :)

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