• 5 Posts
  • 57 Comments
Joined 30 days ago
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Cake day: May 30th, 2026

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  • Calling articles “lazy content” is extremely unintelligent. I’m disgusted that you should say that.

    Reposts, not articles themselves. Reposting someone else’s writings from the web as a link is objectively low-effort work that could be handled by a dozen-line script.

    Reddit and Lemmy are link/news aggregators.

    Maybe they started as such, but now it’s a small part of their scope. I don’t perceive them as such, rather as a general-purpose forum. I go to Lemmy/Reddit to ask a question (e.g. how to repair a thing), voice an opinion, start a debate, talk about stuff, read comics, etc. I don’t recall following a single community that is about link aggregation.














  • SPF50 means that only 1⁄50 of total UV light gets to your skin. If the SPF50 factor for a narrow light wavelength was tested under a 20 μm layer of sunscreen, and you’ll manage to apply a 40 μm layer, the resulting UV light would be 100%÷50÷50=0.04%, corresponding to SPF2500 for this wavelength.

    Of course, SPF is not measured for one particular wavelength. UV light is a spectrum of sunlight of wavelengths starting at 100 nm to 400 nm. UV radiation of shorter wavelengths contains more energy, but is easier to stop; it usually responsible for short-term damage like sunburns. For longer waves it’s vice versa, they are less powerful and won’t cause a burn, but are harder to stop and penetrate skin deeper and cause cancer and premature aging.

    Low-SPF sunscreens are usually achieving their index thanks to stopping easy-to-catch short waves that are most of UV exposure in pure joules, and are having a hard time stopping long-wave UV due to their chemical composition. For further reading I recommend a 2019 article “Critical Wavelength and Broad-Spectrum UV Protection”, Google it, I’m cautious to paste a link in case anti-spam bots are tightly configured here.

    SPF is overall not a very good and all-encompassing sunscreen quality indicator. I recommend looking into UVA-centered indexes: CW (over 370 is good, in EU these are marked with UVA circled mark), UVAPF or PPD (over 15 is decent, that’s same system as SPF but for UVA, longer waves) or, common on asian brands, PA++… index (UVAPF=2^x, where x is the amount of “+” symbols after PA).







  • CC-BY-SA does neither prevent, say, a BlendSwap (where there are CC-licensed and even CC0/PD models made by artists for artists, but also an exclusionary “Plans” page) from charging users for downloading a model meant to be gratis, nor prevent them from omitting external links to the artist’s own sources where anyone could get it for truly free.

    It does require attribution though. You can request a link to be a part of attribution. CC BY-SA license, §3.a.1.A:

    If You Share the Licensed Material (including in modified form), You must:

    1. retain the following if it is supplied by the Licensor with the Licensed Material:

      I. identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);
      II. a copyright notice;
      <…>
      V. a URI or hyperlink to the Licensed Material to the extent reasonably practicable;

    I highly recommend reading both licenses in full before considering applying them to your work.

    The first case, for me, would be okay if said blog weren’t to exclude other people from accessing because they can’t afford paying for access

    If you post an NC-derivative work on YouTube or a similar blogging site, and the platform has ads or sponsorships, and the creator gets a cut of ad revenue via a monetisation program (55% on YouTube), you are violating terms of the variant. I’m not a lawyer, but I believe that even if you are not in the monetisation program you still can’t post BY-NC-… derivative works on YouTube per their terms of service because if YouTube would make even a cent from a video or a post with it they would violate this license.

    The second case, definitely a no-no

    Well, physical items can’t all be free as they require limited materials to craft (wood, fabric…) and, unlike digital goods, can’t be duplicated indefinitely. Nonetheless, BY-SA would allow everyone to make a copy of the product as close as they would like with their own materials, using monetary investment one entrepreneur poured in to everyone’s most benefit.

    I’m not aware of a license, a fortiori a decenly popular one, that would permit ubiquitous monetisation and forbid selling of a derivative work in any form.