[-] Arghblarg@lemmy.ca 3 points 1 day ago* (last edited 1 day ago)

What I find interesting, then, is what advantage the trilobites may have gained by using a basic mineral for the lenses vs. organic chitin. Chitin must have a transparent form in order to function for the eyes in modern creatures? Hmm.

I read in one paper that trilobites may have actually formed some kind of dual-layer in their lenses to compensate for the double-refraction property of calcite.

[-] Arghblarg@lemmy.ca 6 points 1 day ago* (last edited 1 day ago)

Ah! So the same as the rest of their hard parts, I suppose. I suspected as much, but couldn't seem to find any paper that explicitly stated this.

Thank you!

In regards to use of calcite vs. chitin: doing a quick search: https://www.ualberta.ca/en/earth-sciences/facilities/collections-and-museums/treasury-of-trilobites/index.html

Were trilobites also unique in using calcite in addition to chitin in their exoskeleton? Do any extant arthropods use calcite in any significant way?

25
submitted 1 day ago by Arghblarg@lemmy.ca to c/science@mander.xyz

I was searching online for quite a while this evening, chasing a half-remembered bit of trivia, that trilobites were supposedly unique in their use of calcite for their lenses, composing the ommatidia of their compound eyes.

It must be so obvious to scientists in the field of studying insects that they never mention it in their papers...

So, what compound(s) do modern arthropods use in their compound eyes. If it isn't calcite, what do modern 'bugs' use?

[-] Arghblarg@lemmy.ca 3 points 3 days ago

Can confirm 4. (Bluetooth) issues, and they aren't specific to Mint, I'm on Devuan linux and experience these random disconnects a lot. Very annoying.

Re: Wayland -- It's unpopular to say in many places online but I agree, it's still beta and I'm dismayed to see KDE has announced they're hiding X functionality by default now. I try Wayland about once a year, and there's always something like random desktop crashes (the WHOLE desktop/session) or other annoyances that make me go back to X-based sessions. Sorry Wayland people, you and the desktop manager folks need to figure things out and stop saying it's each other's job to handle this or that aspect of the UI/locking/keymaps/whatever.

Still love Linux but I also feel it's gotten a bit worse as compared to a decade ago.

[-] Arghblarg@lemmy.ca 2 points 4 days ago

The more general vuln is CVE-2023-45853 apparently, in zlib through version 1.3

https://ubuntu.com/security/CVE-2023-45853#status

is this general to any Linux distro using zlib or just Ubuntu?

[-] Arghblarg@lemmy.ca 1 points 4 days ago

Ah, I can try that then, thank you!

[-] Arghblarg@lemmy.ca 3 points 5 days ago* (last edited 5 days ago)

OK... so what's the best way to select a different keymap in Wayland? Searching around I see mentions of setting a keymap in config.h and recompiling a compositor.. or 'modifying the system XKB database in /usr/share/X11/xkb' ... or this tool https://github.com/xremap/xremap (have not tried it myself).

I need not just to tweak one or two keys, but to set a entire alt keymap (us,apl). and it has to be changeable on the fly, not statically, via AltGr or other user-defineable key.

I'd like to try KDE again, but last time I tried with wayland the keymap stuff seemed wonky to me.

[-] Arghblarg@lemmy.ca 227 points 1 month ago

Heaven forbid journalists do... you know, their jobs?

7
submitted 3 months ago* (last edited 3 months ago) by Arghblarg@lemmy.ca to c/APL@lemmy.ca

Whether you are an old hand at APL, or someone just discovering the language, having the symbols in the standard layout right there on your keyboard is a great help... dedicated APL keyboards are pretty expensive, so consider these stickers that let one adapt any standard desktop or laptop keyboard!

APL keyboard sticker set on Tindie

To set up your keyboard for APL programming on Linux, see here.

104

If you haven't heard of it, this island has a population that the world has collectively decided to leave alone, mostly because they have proven, on multiple occasions, that they absolutely do not want visitors. Like, arrow-to-death anyone attempting to land or even visit near their shores.

This probably cannot go on forever... but maybe, it could. Essentially, we are already implementing a 'Prime Directive' of sorts here. Would the 23rd, 24th, ... centuries in Star Trek canon still have this little island on Earth, isolated from not just from Earth's own unified Federation society, but from the greater Federation races? What steps would the Federation and Earth take to maintain their isolation and the ecosystem on which they depend?

Would make for an interesting episode, or at least a cool side-note reference in one :)

2
submitted 4 months ago* (last edited 4 months ago) by Arghblarg@lemmy.ca to c/APL@lemmy.ca

For Funtoo users, simply sudo emerge dev-lang/apl :)

7
submitted 5 months ago* (last edited 5 months ago) by Arghblarg@lemmy.ca to c/gmecanada@lemmy.ca

Normally I avoid linking to the old sh$thole here ('cuz you know, f*ck u/Spez), but this is an exception.


DFV posted DIRECTLY to 'stonk: https://www.reddit.com/r/Superstonk/s/8TNza7V2IN

Discussion over on the 'stonk sub: https://old.reddit.com/r/Superstonk/comments/1d6r84q/roaring_kitty_theroaringkitty_on_x/

Twitter post tonight: https://x.com/theroaringkitty/status/1797418617908154621?s=46&t=C7yuUBuPnwEdJziHIhO53w

5
submitted 5 months ago* (last edited 5 months ago) by Arghblarg@lemmy.ca to c/APL@lemmy.ca

GNU APL is easy to build on your own Linux machine, though the steps aren't detailed on the website.


Benefits of building yourself locally:

  • One can customize how many cores GNU APL has access to
  • Customizing optional extensions like PNG image, SQLite, GTK support etc.
  • Having the latest bugfixes

  1. Obtain the latest source

  2. Configure using autotools

    • cd trunk
    • make clean
    • ./configure CORE_COUNT_WANTED=3 RATIONAL_NUMBERS_WANTED=yes --with-ctrld_del

    Use ./configure --help to see other options, adjust to taste

  3. Build and install

    • make -j && sudo make install
  4. Set up your default workspace

    • cd ~
    • mkdir -p GNUAPL/workspaces

2
Checks out! (old.lemmy.ca)
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submitted 6 months ago* (last edited 1 month ago) by Arghblarg@lemmy.ca to c/APL@lemmy.ca
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submitted 6 months ago* (last edited 6 months ago) by Arghblarg@lemmy.ca to c/APL@lemmy.ca
0
submitted 6 months ago* (last edited 6 months ago) by Arghblarg@lemmy.ca to c/gmecanada@lemmy.ca

0
submitted 6 months ago* (last edited 6 months ago) by Arghblarg@lemmy.ca to c/gmecanada@lemmy.ca

🟩 70 minutes in: $21.40 / 19,86 € (volume: 168513)

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3
submitted 8 months ago* (last edited 8 months ago) by Arghblarg@lemmy.ca to c/synths@midwest.social

Best book for learning the ins and outs of MIDI I've ever encountered. Relatively obscure, but an invaluable reference book for anyone wanting to dig into the details of how MIDI works.

[-] Arghblarg@lemmy.ca 138 points 1 year ago

What? The government will actually collect taxes itself like every other sane country, instead of privatizing it out to middlemen grifters? Oh my, where is mah fainting couch?

[-] Arghblarg@lemmy.ca 106 points 1 year ago

Go listen to Strike Force 5, the podcast with all the late night hosts! Any profits they make from it (and their sponsors, mostly Ryan Reynold's businesses) also go to helping their staff!

https://www.iheart.com/podcast/867-strike-force-five-122135023/

[-] Arghblarg@lemmy.ca 255 points 1 year ago* (last edited 1 year ago)

What a bunch of maroons. 99.9% chance someone else mirrored that git repo.

EDIT: And this is yet another reason everyone, everywhere, should immediately mirror any git repo for a project they are even remotely interested in.

github giveth, and github can (and does) taketh away. Say NO to centralized source management platforms -- exactly the antithesis of what git was designed for in the first place!

[-] Arghblarg@lemmy.ca 147 points 1 year ago

He actually says they (the rich owners) need to "hurt the economy". Economic terrorist.

[-] Arghblarg@lemmy.ca 106 points 1 year ago

I vote to block them as well. Don't let Meta get its claws on lemmy.ca content or user info.

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Arghblarg

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