marcos
@marcos@lemmy.world
- Comment on What is negative voltage? 3 days ago:
We don’t use absolute values in out outlets because there are no absolute values for voltage.
The line in your outlet oscillates between positive and negative (sqrt(2)*V) relative to the neutral, where V is the nominal voltage of your place. And because this is symmetric, you can also say that the neutral oscillates on the same range relative to the line.
- Comment on What is negative voltage? 3 days ago:
You take some point of your circuit, call it “ground” and define the voltage there as 0.
If something has a higher voltage than it, than the voltage is positive. If the voltage is lower, than it’s negative.
Also, you are mixing energy distribution names with your voltage references. Your ground wire has the same potential as the actual ground (the stuff made of dirt where your house is built). We usually define it as the ground in circuits that are connected to it, but you’ll be surprised by how unusual it is to connect circuits to it.
- Comment on Geologist Reunited With Beloved Rock He Studied 20 Years Ago 4 days ago:
No. You become a radical only when you practice detachment.
- Comment on Hmmmm! 4 days ago:
I don’t know what you are trying to say. But you can’t predict the state something had before you observed it from the stuff you see.
- Comment on The potato of EVIL 4 days ago:
That’s the only way I managed to understand that phrase. It’s an order and an observation.
- Comment on Hmmmm! 4 days ago:
Knowing current state of the univers, you can “predict” everything that has past
The observer effect is irreversible. Quantum mechanics is reversible only because it the effect technically falls outside of the mechanics.
In related news, the entropy of a closed system is usually not constant.
- Comment on Gotta go sad! 5 days ago:
Have you tried just walking slower?
- Comment on 5 days ago:
They had lips and fat chicks.
And also feathers, but few of those and people don’t seem to agree on where.
- Comment on What happens when you just refuse to pay and go ... ? 5 days ago:
They have been doing that at the Arabian Sea for months too. They already bragged about killing some Indian civilians on twitter…
- Comment on Why does not a CR (Carriage Return) automatically start a new line on some online text editors? 6 days ago:
So, it is about markdown.
It’s this way because people want to break their editable text into lines without making the final text break paragraphs. People write entire books in markdown, but it does become unsettling when you use in social media comments.
- Comment on Why does not a CR (Carriage Return) automatically start a new line on some online text editors? 6 days ago:
Is this a rant about typewriters, computer character encodings, or some computer file format?
Why are you getting files with bare CR characters not followed by a LF?
- Comment on Why did/does Oman not raise a stink about Iran also closing their half of the strait? 6 days ago:
Oman seems to be working extra hard to not poke either of the bears fighting in close proximity to them.
Looks like a very sensible policy to me.
- Comment on Putin finally realizing 1 week ago:
In theory the US government is much easier to remove.
- Comment on Death by dissin' Terry 😞 1 week ago:
IDK if it’s a clone or the original, but it’s published as open source, you can install it from flatpak or even the debian repository.
- Comment on national anthem 1 week ago:
In the sense that “if you can’t stand this, you probably won’t like the rest of the show”.
What is clearly false, but that he intended it to be that way.
- Comment on national anthem 1 week ago:
The author said in an interview that it was a filter to get the public he wants for the series. No idea if that’s post-facto rationalization, though.
Anyway, Netflix changed their entire system so that they could order that one show differently. It’s the last episode there.
- Comment on I mean, technically the kid's right 1 week ago:
You can always use the Excel API to read the file, but make sure you set the computer’s locale to Turkish before you start.
- Comment on *decline* 1 week ago:
“Oh, sorry, you meant for a call? No, I’m in a meeting already, I’m free to do stuff but I can’t answer a call.”
- Comment on Do you think that Trump is the most hated U.S. president? 1 week ago:
It’s insanity so far…
He tried to make the camps already. He is trying hard to do a genocide in Cuba (no idea on how successful, since the press can’t go there anymore), he is killing lots of civilians on the Middle East just for the explosion videos, and he is supporting Israel.
If he could, there’s no doubt he would be worse.
- Comment on Name that tune. 1 week ago:
They are injecting sound right at the blowing end. I imagine they are measuring reflections.
- Comment on Correlation implies causation 1 week ago:
Eh…
It doesn’t get anything similar to the same result.
trends.google.com.br/trends/explore?date=today+5-…
You are trying to say it’s a coincidence, and that’s probably correct. But it’s perfectly possible that the interest in datacenters leads to an interest in dizziness, or that they are related by some hidden variable.
- Comment on Correlation implies causation 1 week ago:
The delay implies on the other direction. Let’s see if dizziness reduces a bit in 6 months.
- Comment on 2 weeks ago:
Apparently, the share of the population on food stamps in the US is more than 2 times larger than in Brazil…
We see things happening there, but it’s never clear how deeply it goes.
- Comment on All cells are bastards 2 weeks ago:
For anybody also having a hard time reading that partially folded flag, or finding the text within the 1000 words article, it’s this:
“When the power of love beats the love of power the world knows peace”
- Comment on Is using an ssd as a cache to speed up a harddrive still a thing? 2 weeks ago:
Haven’t heard about anybody doing it for a long time. Nowadays flash drivers are big, so people just use them for the fast parts and disks for what can be slow.
I’d use flash for storing the main system, and mount the disk in a directory where you will keep the large media, probably as a subdir of your home.
- Comment on Lemmy Shitshow 2 weeks ago:
Well, you decided to post politics into a non-politics community, instead of a politics one. And now moderation drama into a shitpost community instead of a moderation drama one…
- Comment on Why do tires have the width and diameter they do? 2 weeks ago:
No. It often decreases.
Tire pressure is the one main variable that determines pavement wear. It is highly regulated for heavy vehicles. Those have to compensate by using wider tires or more wheels.
- Comment on If power the rate at which energy is transferred, then does that transference have a speed? And have we or can we measure it? 2 weeks ago:
Yes, it’s power…
I think you are trying to ask something different from what you actually wrote.
- Comment on A patriotic cocktail for real Americans 3 weeks ago:
“A Cuba-libre and a Trump-pool for us please!”
- Comment on 3 weeks ago:
On what grounds?
I’m sure it will be on terrorism charges. I just don’t know how.