Nibodhika

Nibodhika , 1 month ago to nostupidquestions in Does color change how hot a laser can get something?

This question has lots of different answers depending on exactly what you want to know, I’ll ask it in a few different ways and provide answers to them

Does the color of a photon change its energy content?

Yes, color is the result of how energetic a photon is, red is low energy compared to blue, so a single blue photon contains more energy than a single red photon.

Does the color influence how much energy is transferred to an object?

Yes, the color of an object is the result of white light hitting it and it reflecting back that color. For example leaves are green because they reflect green light while absorbing most others. In a way the color of an object is the color that the object rejects. So if you have a blue object it will reflect the blue laser more than the red one, so the red laser will heat it more because it’s being absorbed.

Which color heats lead the most?

That is a very interesting question, to know this you need to look at the absorption spectrum of the material, i.e a graph showing you which wavelengths are more absorbed by the material, so if I’m reading correctly the spectral lines in the wiki page for lead en.m.wikipedia.org/wiki/Lead it seems a cyan/greenish laser would be most effective in heating it (or I might be reading it completely opposite and that is the least effective color for heating lead)

Does a blue laser produces more energy than a red laser?

It depends, lasers emit photons, and while a single blue photon contains more energy than a single red photon, thousands of red photons contain more energy than a single blue photon. So it depends on how many photons each laser emits, if it’s the same amount then yes blue lasers will output more energy, but that’s not a given. In fact while I’m not intimately familiar with the physics of lasers, if we asume a perfect energy conversion from electricity to photons if two lasers use the same energy input they should have the same energy output, which would mean less photons for the blue laser.

Nibodhika , 1 month ago to linux in Does anyone know why SteamOS is based on arch rather than Debian?

All of the things others have said are excellent points, I would also like to point out that if you go to the steam hardware survey and select Linux only you’ll see that Arch is the most used distro (after SteamOS), and that was also the case when the Steam Deck was announced in July 2021 web.archive.org/web/20220806051441/…/hwsurvey/

And from my personal experience there’s a reason for that, other than the I use Arch btw meme, despite most ports having Ubuntu in mind, and despite Ubuntu being the more user friendly distro, games just work on Arch. It’s a weird thing where gaming on all of my arch machines is very painless, but gaming on the Ubuntu ones is frustrating, there’s always something not right, it feels like the machine is chugging, or the driver decides not to work, or the game shows a black screen, or prime decides not today, etc, etc. I admit this is personal experience, and others might have the exact opposite, and that this is kind of biased because as a general rule people who use Arch tend to be more knowledgeable about Linux than people who use Ubuntu, but from replying on several Linux forums it’s generally people with Ubuntu that have problems with games and people with Arch usually report that “it just works” for them.

Nibodhika , 2 months ago to games in Take-Two Interactive shuts down the Studios behind Kerbal Space Program and Rollerdrome

That reminds me Jedediah has been stranded on the Mun since around 2016, so I hope a long time hahahaha

Nibodhika , 2 months ago to games in Wise words from Master

I imagine you played the remaster on Steam, how did you defeat him though? In the original

spoilerYou had to plug your controller on the Player 2 slot so that Psychomantis couldn’t read your mind.

And that seems hard to reproduce the feeling on a PC while still giving everyone a chance to win the fight

Nibodhika , 2 months ago to selfhosted in Is ansible worth learning to automate setting up servers?

I have been setting it up on my home, still not done but I can already see some benefits from it, e.g. I’m about to build a new server and migrate a lot of stuff to it, with ansible it will be very easy to just move some configs around and setup the server in no time at all. It also is encouraging me to keep a standard on how I do things which is great, and after setting up some initial things now adding new services is quite straightforward.

Overall I think there are a lot of positives about it, especially if you have multiple machines to manage. But even for a single one the fact that you can recreate everything from scratch in just one command is quite awesome considering the amount of times I’ve redone my server from 0 for different reasons over the past years.

Nibodhika , 2 months ago to selfhosted in Post your Servernames!

I always name my PCs with characters from the book I’m currently reading. Here are a few: Teatime, Cthulhu, Dirk, Horus, Binky, Pteppic

Nibodhika , 2 months ago to selfhosted in Post your Servernames!

A man of culture I see hahaha. Just like VLC devs.

GNU Terry Pratchett

Nibodhika , 2 months ago to selfhosted in what's your fav recipe manager?

I’ve tried several, but I’ve had a major incident and lost all of the recipes I had because of a database corruption.

So I decided against keeping recipes in databases. I migrated to Notion, but I kept looking for a replacement since that’s not self-hosted. Eventually I ran across Silverbullet, and I’ve been using it for everything, so far it’s been great. Not exactly specifically what you asked but it can be used for it and works great.

Nibodhika , 2 months ago to linux in If all kernel bugs are security bugs, how do you keep your Linux safe?

There are lots of things the Kernel controls that can have non security related bugs, e.g. controller with the wrong mapping github.com/…/9131f8cc2b4eaf7c08d402243429e0bfba9a…

It’s a wild assumption to claim “All bugs in the Linux kernel are security issues”, without any backing, whoever is making that claim needs to provide evidence since the default position for any program is that there are bugs that are not security issues.

Nibodhika , 2 months ago to games in Cities Skylines 2: "Beach properties assets are all gone and my city is screwed. Thanks a lot."

Long story short:

1. CO released an unoptimized game
2. Community complained
3. CO vowed to fix it before releasing DLCs
4. CO released an assets only DLC
5. Community complained they broke their promise
6. CO tried to explain it’s different teams
7. Community kept complaining
8. CO refunded the DLC for everyone and removed it from Steam and will add the content for free in the next update
9. Community gets refund and assets become gray boxes until the new version is released
10. Community complains about grey boxes

Yes, CO did bad releasing an unoptimized game, but if you put pressure for a cosmetic DLC to be removed you can’t be angry that they removed said DLC.

Nibodhika , 2 months ago to nostupidquestions in How many floors are under an apartment on the second floor? (No basement)

Because it has a special place, i.e. it’s leveled with the ground, so anything above it you need to climb up, anything below it you need to climb down.

Think of it this way, floor is a synonym with level, if I asked you to tell me which level the ground is at the only logical answer is 0, if you say the ground is at level 1 that implies that the first basement is level 0 which sounds ridiculous.

If you’re in an elevator that has the numbers from -5 to 15, where is the only logical place for the ground to be at?

Nibodhika , 2 months ago to selfhosted in fanless hardware for selfhosting lxd/docker

Correction, Raspberry pi zero can run lxd, been there done that. So if that’s all OP wants a $10 computer should do it, he really needs to be more specific.

Nibodhika , 2 months ago to linux in Stopping a badly behaved bot the wrong way.

I know you couldn’t do that because you have data limits in the US, but my first instinct would have been to put an Ubuntu iso as the robots.txt (or better yet, point it to /dev/urandom) let that bot download GB of data to fuck with his connection/disk.

Probably shouldn’t do that though, and blocking it on Cloudflare is the correct approach.

Nibodhika , 2 months ago to selfhosted in In search of software for managing my life (like a helpdesk but in a lite format)

O think you meant to reply that to OP

Nibodhika , 2 months ago to linux in Is there a way to add "Run as Sudo" to context menu like with Windows?

It’s not impossible, but each DE has their own context menu, each application has their own context menu, without understanding his use case it’s impossible to answer the question. If he had said I want to edit root files then the answer would be the nautilus-admin plugin, but he kept shutting himself and not answering simple question about what is his use case which made it impossible for anyone to answer.

If someone asks how to tie a noose you ask for context, answers are vastly different if he’s trying to tie his shoes than if he wants to hang himself. Even if you plan on helping the person hang themselves you need to know the use case. Read some of the replies he sent and you’ll see his entire problem is caused by him having run things with sudo to begin with, and now having lots of permissions problems that he thinks the best solution is an easier way to run programs with sudo, which will put him in more of the same situations needing that more and more. He can use his computer however he wants, but at that point it might be easier to just login with the root user and be done with it.