gandalf_der_12te
@gandalf_der_12te@lemmy.blahaj.zone
- Comment on Krillin 1 day ago:
it’s the main component of a meal.
- Comment on Alabama is farming out incarcerated people to work at hundreds of companies 1 week ago:
At least they aren’t Uighurs.
- Comment on DuckDuckGoose 3 weeks ago:
- Comment on [discussion] DC (direct current) power network 3 weeks 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 3 weeks 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 3 weeks 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 3 weeks ago:
agree
- Comment on [discussion] DC (direct current) power network 3 weeks 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.
- Comment on [discussion] DC (direct current) power network 3 weeks ago:
- Submitted 3 weeks ago to technology@lemmy.world | 36 comments
- Comment on No one’s ready for this: Our basic assumptions about photos capturing reality are about to go up in smoke. 3 weeks ago:
I don’t believe there’s misinformation because we fail to discern the truth though. Misinformation exists because people believe what they want to believe.
- Comment on No one’s ready for this: Our basic assumptions about photos capturing reality are about to go up in smoke. 3 weeks ago:
almost how a printing press made the production of books so much faster
… and we all know that lead to 30 years of bloody war, btw
- Comment on No one’s ready for this: Our basic assumptions about photos capturing reality are about to go up in smoke. 3 weeks ago:
Your comment somehow just made me realize something: When we see/read news, we have to trust the one who’s telling them to us. Since we weren’t there in person to see it with our own eyes. Therefore, it’s always about a “chain of trust”.
This is true no matter whether photos can be manipulated or not. People have been able to lie since humanity exists. Nothing has really changed. Photography, just like globalization, has only brought everything closer together, making it easier to have a more direct, straightforward relationship to other people and events. With the beginning of AI, this distance between you and an event is going to increase a bit, but the core mechanics are still similar.
I kind of wonder, how do we really know that something is true? Do atoms actually exist? What if we’re being lied to by our authorities. You say “of course not”. But what if? I mean, if we blindly trust authorities, we end up like the republicans, who believe everything that fox news tells them. How, then, do we discern truth?
- Comment on No one’s ready for this: Our basic assumptions about photos capturing reality are about to go up in smoke. 3 weeks ago:
yeah, every time you go to a party, and fun happens, somebody pulls out their smartphone and starts filming. it’s really bad. people can only relax when there’s privacy, and smartphones have stolen privacy from society for over 10 years now. we need to either ban filming in general (which is not doable) or discredit photographs - which we’re doing right now.
- Comment on No one’s ready for this: Our basic assumptions about photos capturing reality are about to go up in smoke. 3 weeks ago:
interesting thought. we haven’t had photos in history, and people didn’t need them. also, we’ve been able to produce text deepfakes all throughout history (and people actually did that - a lot) and somehow, humanity still survived and made progress. maybe we should question our assumptions whether we really need a medium to communicate absolute truth.
- Comment on Why are so many leaders in tech evil? 3 weeks ago:
That’s a fair question.
I think there’s many different - and valid - answers to this, depending on how you look at the question.
I guess you could say that society had a stronger immune system back then to eliminate these bad cells. These days, they run way too freely. It’s bad, and i’m not sure whether we need a structural reform or whether we can wriggle through this one.
- Comment on How the fuck do you meet new people? 3 weeks ago:
short question - do you mean Cleveland, OH, or Cleveland, TN, or Cleveland, TX, or Cleveland, GA?
- Comment on How the fuck do you meet new people? 3 weeks ago:
So first of all let me tell you that it does indeed depend on where you live. So it would have been very useful information if you had stated where you live. Since you didn’t state it, I assume it’s in the US, since for some reason, people in the US never seem to see the need to state that they live in the US (not all of us do).
Secondly, I really am sorry for your situation. There’s a lot of wrong things with society. One of those things is that it’s difficult to meet new people. Another, in my opinion, just as bad thing, is that one has to drive. Basically, people didn’t drive before 1800. Driving is the exception in history. I don’t see how or why people think these days that it’s completely normal to drive, or to have to drive. This has nothing to do with your post, but it’s still something that I’m thinking about. Sorry for the random side-rant.
Thirdly, I have found that it’s often best to search for like-minded people, and just randomly go to them, say to them “hey, can I sit with you”, wait a few seconds, and if they agree, sit down and just say “hi” and “i’m [insert name] and i’m from [insert location] and i’m looking for [insert any random hobby or activity you like]”. most people react by either agreeing or declining, and such is life.
- Submitted 4 weeks ago to [deleted] | 2 comments
- Comment on Health food 4 weeks ago:
- Comment on Consumer, we have detected that you are above the poverty line. The 99¢ price printed on this Arizona tea can only applies to those below the poverty line. Your total comes to $3.67. 4 weeks ago:
AI has the potential to improve efficiency. That includes the potential to make all forms of evil more efficient.
- Comment on Consumer, we have detected that you are above the poverty line. The 99¢ price printed on this Arizona tea can only applies to those below the poverty line. Your total comes to $3.67. 4 weeks ago:
I have the vision that AI will eventually replace all the CEOs, being even more efficient than them at whatever their job is. This means even more exploitation of workers, hoarding of wealth, and putting profits above all else. The true nightmare. I think that AI will eventually turn all corporations into pure evil, and turn all humans against AI and therefore corporations. That will result in a civil war - humans vs machines. Eventually, humans will be able to save themselves, but only by putting capitalism and the system of ever rising profits to the grave for good.
- Comment on California launches electric trains as US lags behind world in rail electrification 5 weeks ago:
What you mean like any sane country already did?
- Submitted 5 weeks ago to [deleted] | 1 comment
- Comment on I definitely never unsubscribed from a YouTube channel just for that... 5 weeks ago:
But then, to follow up on your statement, what is the cause of all causes?
- Comment on I definitely never unsubscribed from a YouTube channel just for that... 5 weeks ago:
Language is […] always in flux
And, more importantly, I will use language as I please; I don’t have to justify my use of words to anyone. That is why I don’t see why people complain about using words “the wrong way”. Even if it is, I will still insist on my right to produce whatever gibberish my mouth is willing to put forward.
- Comment on I definitely never unsubscribed from a YouTube channel just for that... 5 weeks ago:
where people can end up saying dumb shit like “Evolution is just a theory.” I will physically fight people on that, If need be.
Then again, why bother? If people want to say dumb shit, what concern is it of yours? It’s the same when people say “the earth is flat”. It’s not, but I would never fight someone over it. That’s just not worth my time in most cases.
- Comment on I definitely never unsubscribed from a YouTube channel just for that... 5 weeks ago:
Yeah I like that.
I use “theory” for theoretical things, like theoretical physics and math, that can be proven (in a mathematical way).
I use the word “model” for practical things, like practical physics. Models don’t need to be proven, but their accuracy can be more or less helpful, depending on the context.
- Comment on NASA Ping 1 month ago:
PvP - player vs ping
- Submitted 1 month ago to [deleted] | 3 comments