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sga

@ sga @lemmy.world

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Joined
2 yr. ago

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  • Now i remember we also had to specify what isobutyl (technically just 1 isobutyl exists (not counting stereoisomers), and other form would be tertbutyl). But giving highest priority and minimising sum were definitely something we were taught.

    I was free enough to look it up this time - IUPAC guidelines for organic chem - https://iupac.org/wp-content/uploads/2021/06/Organic-Brief-Guide-brochure_v1.1_June2021.pdf (or more generally https://iupac.org/what-we-do/nomenclature/brief-guides/)

    Section 7 ( c ) Lowest locant(s) for principal characteristic group(s)

    Although I also remember just as we completed our unit on nomenclature, all we got was "common names", now i was supposed to know of the top of my head what a cumene is (which I think is isopropyl benzene (not going to check this one)). Same thing happened with polymers, we were taught IUPAC, and then again, "industrial names"

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  • actually we start numbering by minimising the number of highest order addition, which is the isobutyl, if it gets same number regardless, then we try to minimise the sum of numbers, so i think it should be called

    5-(isobutyl)-5,6,6,7,8-penta-ethyl-8-methyl-decane (I am assuming hydrogen's are present, just not represented, because that usually is the case)

    I may alo be wrong here, it has been 4 years since I have been required to do nomenclature myself

  • What does your OS do that I should steal?

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  • it is not really "code" - it is a fancy shell script stringing a launcher like thing (if you have seen people use dmenu or rofi to launch applications and make menus, it is just that, but repurposed to do more). I just realised i forgot to add link the article (the said write up in the original comment) https://sga.codeberg.page/articles/Launcher/Launcher_for_Everything.html. Since then I have made many changes, and here is the script

    Although I was actually considering a rust rewrite, because I am learning it, and 150ms is way to long for me

  • What does your OS do that I should steal?

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  • I made a launcher inspired initially by kde's krunner, tries to do everything with a launcher, keeps the keyboard shortcuts to minimum, but having almost everything within a few keystrokes. Most things are os/de/wm agnostic. Since the write up, I have added a bluetooth device selector, network connections, vpns, and more stuff.

    edit: sorry I forgot to add the link - https://sga.codeberg.page/articles/Launcher/Launcher_for_Everything.html#how-does-this-work

  • What is something that only exists because people are stupid?

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  • laws

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    You have 300billion dollars to use for the good of the country/planet. What do you do?

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  • not a economist, but no, it does not help (at least not really in short term, in very long it does pay okay-ish (depends on what kind of debt is it, but it can help keep ties with other nations intact))

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  • ecc can only help prevent (or fix) errors, what to do about lack of memory. that brings me back to, what was the question again

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  • extremely bad, but it depend on what things, like i can't remember what was my last meal or something, but i can remember "stem" (can't think of a better word here) fairly.

  • How do you write a lengthy, informative comment/post?

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  • Most people have already written the most things, being passionate and explaining well, but for me it is - I do not interact much, if I dont have anything new to add, I usually don't, If I got interested enough to comment, then I must have something to speak on it, and if no one else has (I first search for other comments, If I find same stuff, I just upvote their comment and move on) then I am past a threshold where I can write something long.

  • Is anyone here not from reddit?

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  • Maybe I dont count, but I was a reddit mild lurker, I would check something like r/memes every week, and also r/linux with similar frequency, and learnt about lemmy close to reddit API stuff, and made a lemmy account sometime after

  • What is your favorite color and why

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  • used to be blue (royal blue then sky blue) and now black (i am not a edgy teen, an adult) but still like sky blue

  • This is a thought experiment "Ball on a Table" for detecting whether someone has Aphantasia. What do you see when you perform this experiment?

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  • Maybe I am broken by all the physics thought experiments, but my image was very bare-bones

    I imagined a small ball (roughly of size of my fist) but only an outline, no features, I did not imagine practically anything about person - just a force (imagined impulse was parallel to table plane) - I did imagine ball rolling (considered forward rolling, as opposed to impulse on center of mass (which in a frictionless situation would make it just linearly translate, or backspin) and falling from the table after a few seconds

  • What else is there

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  • life when space is Ω and boundary is dΩ (or S, ds) or all space is abstraction of a hilbert space of dimension n

  • Youtube has fully blocked Invidious

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  • For those who are want something similar to invidious, you can try youtube-local (not my project, I am just a user). It is a minimal python youtube client, and functions similar to other frontends, but runs locally. You lose some amount of privacy (youtube still has a general idea of who is watching with IPs), but it is not very exact, and there is an option to use tor to get the content. You can also enable sponsorblock, or hide yt-shorts.

  • Looking for advice on PC build for programming

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  • I have a question, what are you exactly seeking to repair?, like if you have a good working laptop, and if it gives good performance, then there may not be much need of repairing. One of the reasons for getting repairable hardware is that they last long, like I have laptops which are 13 and 7 years old, and they both "work", batteries are dead, and replacements are not good, but other than that fine machines. If your laptop is not very flimsy, you may not even need an upgrade for a long time.

  • Looking for advice on PC build for programming

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  • well even a raspberry pi would be enough, except for ML

    depending on what exactly in ML, and what our the sizes of datasets involved?, like i did some work, but for me 8 GiB RAM was enough, but if you want to do larger databases, you would need somewhat good GPU (essentially large matrix multipliers) with plenty of VRAM