gandalf_der_12te
@gandalf_der_12te@lemmy.blahaj.zone
- Comment on Magic Beneath The Forests 2 weeks ago:
After all, it’s only intelligence when I do it.
- Comment on Eat lead 3 weeks ago:
We obviously live in a matrix/simulated world, and it can’t be older than 50 years, because before that, computers didn’t exist. Checkmate.
/jk
- Comment on Humans should lay eggs 1 month ago:
Yeah but the babies were small, which is what matters here.
- Comment on Humans should lay eggs 1 month ago:
The thing with eggs is that they would probably have to be huge. I guess that the egg would maybe have to be 10x the size of the finished baby (Idk for sure though) due to inefficiencies in the food metabolism. While for chickens, that’s not a problem because the babies are small, for humans it would be difficult.
- Comment on Tripling renewables globally by 2030 is doable, says new IEA report 1 month ago:
But where do we store the energy is the question. Without storage renewables aren’t that useful.
That’s probably propaganda from the oil company. They try to slow down the adoption of renewables by making it look harder than it is.
Fact is: You can start deploying renewables immediately. Every kWh that comes from solar does not come from coal, oil or gas. That is a win. Install renewables first, think about storing the excess power later. That is the best way to go!
- Comment on When we started burning coal it was called the industrial revolution. Was there a name when we started burning oil? The car revolution? 1 month ago:
Yeah i basically just wanted to tell you that there’s actual data on stuff and if you wanna know, you gotta read it all, there’s a lot. I don’t know what it would help you and ask a question such as “is there a name for the time when we started to burn oil?” because if i give you an answer, what do you do with that answer? if you can’t embed it into a broader context, that answer seems pretty useless to me. So if you actually wanna know, maybe start reading it all. idk. maybe i come off arrogant, but that’s not my intention. i just don’t understand what your motivation for asking this question is?
- Comment on When we started burning coal it was called the industrial revolution. Was there a name when we started burning oil? The car revolution? 1 month ago:
I think I just had a lot of talks about this with someone recently. Feel free to DM me if you wanna know more.
Yes, you’re right; The sources of energy have a society-defining role.
There’s two major sources: carbon-based (coal, oil, gas, biomass) and electricity.
Right now, we consume approximately 50% of either, but this is about to change. I predict that solar power will shift energy consumption to nearly 100% electrical in a few years.
I don’t really know about a specific name for when we started burning oil, but you might wanna look at Peak Oil Theory because it explains the mass of oil consumption over time as a bell curve.
- Comment on When we started burning coal it was called the industrial revolution. Was there a name when we started burning oil? The car revolution? 1 month ago:
They mean inverting the flow of logic, not looking at consequences but at causes, i guess.
- Comment on When we started burning coal it was called the industrial revolution. Was there a name when we started burning oil? The car revolution? 1 month ago:
- Comment on When we started burning coal it was called the industrial revolution. Was there a name when we started burning oil? The car revolution? 1 month ago:
No, I think, they both (burgersc12 and OP) have an important point.
We can think of technology in two different ways: input and output; i.e. what do we put into the machine (source of energy) and what do we get out (factory products). They’re just looking at it from two different angles: OP is asking about power source, but burgersc12 is talking about factory outputs.
- Comment on Not cognitive behavioural therapy 1 month ago:
The fact that it probably even helped makes it even better somehow, lol.
- Comment on Weevil time 1 month ago:
They wouldn’t wear a leash because they aren’t a dog.
- Comment on Pharmaceutical Commercials (sound on!) 1 month ago:
What could possibly happen except everything?
This applies to your dating life too, take your chances 😘
- Comment on Grid-scale batteries: They’re not just lithium 1 month ago:
… together with the impression that the chinese have such a big headstart that it’s impossible for US and european producers to catch up.
- Comment on Grid-scale batteries: They’re not just lithium 1 month ago:
I don’t think that batteries will be a bottleneck.
First of all, solar power can be installed even when there’s not enough batteries. The solar power producers during the day, and fossil legacy plants in the night. There’s no reason to stop transitioning our energy grid 50% just “because we can’t do it 100%”.
California is partially already doing this: Image (didn’t find a newer image)
Also, it is unnatural - highly even - that our electricity demand is roughly constant on a 24-hour cycle. It is more natural - for various reasons - that demand for electricity is higher in the daytime. For example, because energy alone is not enough, you also need human workers, and wages are lower in the daytime.
So, the problem of “how do we keep provide energy 24-hours a day” is not relevant. It’s more like “how can we transition our industry away from the unnatural cycle of producing 24-hours straight and how can we turn back to primarily producing in the daytime” together with "it’s not just solar, we also have other renewables.
- Comment on Academic writing 1 month ago:
Currently in a very inter-disciplinary field where the different mathematicians have their own language which has to be translated back into first software, then hardware. It’s so confusing at first till you spend 30 minutes on wikipedia to realize they’re just using an esoteric term to describe something you’ve used forever.
Yeah, this happens a lot. I studied math and I often got the impression that when you read other researcher’s work, they describe the exact same thing that you have already heard about, but in a vastly different language. I wonder how many re-inventions and re-namings there are of any concept simply because people can’t figure out that this thing has already been researched into. It really happens a lot, where 5 people discovered something, but gave them 5 different names.
- Comment on Academic writing 1 month ago:
Oh i would say “ring” is in fact quite a descriptive term.
Apparently, in older german, “ringen” meant “to make progress of some sort/to fight for something”. And a ring has two functions: addition and multiplication. These are the foundational functions that you can use to construct polynomials, which are very important functions. You could look at functions as a machine where you put something in and get something out.
In other words, you put something into a function, the function internally “makes some progress”, and spits out a result. That is exactly what you can do with a “ring”.
So it kinda makes sense, I guess.
- Comment on Academic writing 1 month ago:
A big reason why newspapers use so many filler-phrases and redundancy and just don’t get to the point is because journalists often get paid for how much they write; The consequence is obviously: filler-words.
- Comment on the strange new future of story-driven PC gaming 1 month ago:
I hadn’t read it before, and I thought it was interesting, and the article is still as relevant as it was back then.
- Comment on Why are people seemingly against AI chatbots aiding in writing code? 1 month ago:
People are in denial. AI is going to take programmer’s jobs away, and programmers perceive AI as a natural enemy and a threat. That is why they want to discredit it in any way possible.
Honestly, I’ve used chatGPT for a hundred tasks, and it has always resulted in acceptable, good-quality work. I’ve never (!) encountered chatGPT making a grave or major error in any of the questions that I asked it (physics and material sciences).
- Submitted 1 month ago to technology@lemmy.world | 13 comments
- Comment on [deleted] 1 month ago:
Yes, some people have no concept of truth. They say whatrver is usegul to themselves. More news at 11.
- Comment on Krillin 2 months ago:
it’s the main component of a meal.
- Comment on Alabama is farming out incarcerated people to work at hundreds of companies 2 months ago:
At least they aren’t Uighurs.
- Comment on DuckDuckGoose 2 months ago:
- Comment on [discussion] DC (direct current) power network 2 months ago:
I’ll give you a short introduction to the power grid (btw. it’s called “stromnetz” (electricity network) in german). The power grid has many “levels”, where each level represents a network of cables that transport current at a given, specific voltage. For example, you might have one 220kV level, and then a 5kV level, and a 230V end-consumer level.
Between these levels, there have to be translations. These are “transformers” today, transforming high-level AC into lower-level AC or the other way around. For AC networks, they are basically a ring of iron and a few coils. However, for DC networks, other transformers exists, such as Buck/Boost converter.
My question basically is: is there anyone who can give me experimental data on how well DC networks would work in practice? Personal experience is enough, it doesn’t have to be super-detailed reports.
- Comment on [discussion] DC (direct current) power network 2 months ago:
All that aside yes in the future there’s probably going to be a high voltage DC network in Europe. Less so for private consumers, at least not in the foreseeable future, but to connect up large DC consumers, that is, industry, with DC power sources. If you’re smelting aluminium with solar power going via AC is just pure conversion loss.
Thank you, that was exactly what I was looking for. I know about aluminum production processes, and that it requires large amounts of DC power.
- Comment on [discussion] DC (direct current) power network 2 months ago:
do you have a source for that?
I know about the buck/boost DC-to-DC converters, but they don’t really use AC internally.
- Comment on [discussion] DC (direct current) power network 2 months ago:
agree
- Comment on [discussion] DC (direct current) power network 2 months ago:
well, a large part why I asked the question is because I hope that somebody knows more about what buck/boost-converters can do today. I know they work well enough on small scales, but I have no experimental data for them on larger scales.
I assume they would work well, but I’d like that somebody links me to the right datasheet or something.
