aap_

12 ms·

1.
by aap_ 20d ago
Also been working on PS2 stuff. It's been very fun!
2.
by aap_ 1mo ago
Jörg's automation of the machine is truly fun :) The mechanics of the machine are really clunky and giving it an external clock made it function so much more smoothly iirc.
3.
by aap_ 3mo ago
Never heard this, but very accurate. thanks :)
4.
by aap_ 5mo ago
Ah, you're right. "30 verses" made it sound like more than what you can see on that image. Luckily most of the papyrus is very legible! even if fragmented...
5.
by aap_ 5mo ago
Probably! but how would i know?
6.
by aap_ 5mo ago
So is there any way to actually read it? Or do i have to buy an obscure french book? can you even buy the book? Academic publishing/gatekeeping is such a joke.
7.
by aap_ 6mo ago
If you're rotating around your fingers you're doing something else, not what i mean. I'm just talking palm up, rotating in the vertical axis, 720°. like the cup dance.
8.
by aap_ 6mo ago
The whole assumption of the video is that one cannot understand spinors. He does a good job with the mathematics but i disagree with the premise.
9.
by aap_ 6mo ago
Sometimes the simplest things are hidden in plain sight :) Most people point with their fingers/hands. Unlike rayman, who has vector-like hands, biological beings have them connected to their body, which makes them behave like spinors.
10.
by aap_ 6mo ago
But with a twist in the arm. After another 360 the arm is back too.
11.
by aap_ 6mo ago
No, around a single axis. if you hold your hand palm up you can rotate in the (vertical) z axis around 360° and get a twist in the arm. another 360° undoes the twist, that's 720° around a single axis.
12.
by aap_ 6mo ago
Very cool! The suggestion to consider how the standard model came to be rather than starting with the result sounds like an excellent idea. But of course i have to disagree with this: "A spin-1/2 particle is described by a spinor,
13.
by aap_ 6mo ago
I'd be so much more interested in ipv6 if ISPs would just hand out a stable prefix. as it is ipv6 makes very little sense to me
14.
by aap_ 6mo ago
Because the low level details tend to change over time and then it's too late and you're committed to supporting something that doesn't make sense anymore. like branch delay slots in some RISC cpus, or vulkan ( https:/&#
15.
by aap_ 6mo ago
Interesting that you're saying the BSDs use something sysvinit-based. i never saw any runlevel idea there, which i thought was the primary marker of sysvinit? arch used to have an init system that felt very BSD-like. unfortunately they
16.
by aap_ 6mo ago
I was using FreeBSD (after NetBSD) as my primary system for a while in school (no, i can't watch this youtube video, flash doesn't run on FreeBSD). i still use it for my home server, it's just cozy.
17.
by aap_ 6mo ago
If you only care about rotations in 3d, quaternions do everything you need :) with all the added benefits of having a division algebra to play with (after all the cross product is a division-algebraic operation). PGA is absolutely great, bu
18.
by aap_ 6mo ago
He's still computing cross(z, d) and dot(z, d) separately. that looks like a code smell to me. with quaternions this would be easier: just calculate the quotient between z and d and take the square root (which means adding 1 and renorm
19.
by aap_ 7mo ago
This is looking really beautiful! For a long time I've wanted to have a nice edition of the elements in the original greek. There are some pdfs around but they look rather uninspired. Something like Byrne's edition in greek would
20.
by aap_ 8mo ago
Love the Whirlwind! i think of it as the original microcontroller, except not very micro of course. The 2kw address space is a bit small for bigger programs unfortunately, but it's still great fun to play with anyways.
21.
by aap_ 9mo ago
> This post gets some of the details wrong "some" is an understatement.
22.
by aap_ 9mo ago
This is low-effort fantasy history. It may be directionally correct, but why bother when you don't care about the details? From analyzing the UNIX manuals and other old files we get the following (not fully complete) picture: We'l
23.
by aap_ 9mo ago
In my experience, yes: always happens. So far i have not found a way to mount multiple disks without getting these inode errors. And this is just v4, the nsys kernel doesn't even work with a single disk. i hope i'll get to the bot
24.
by aap_ 9mo ago
Java feels like the COBOL of our times, and the JVM like the IBM 360 architecture.
25.
by aap_ 9mo ago
That's the puzzling thing. i find it hard to believe they sent out an operating system that can't deal with multiple file systems. yet i can't get them to work correctly. The pre-v4 nsys kernel is another piece in the puzzle.
26.
by aap_ 9mo ago
Hi, this is me. I'm still hacking on it but ran into some hard to understand kernel bugs. once i mount more than the root filesystem (say /usr/man) there are issues with inode allocation/freeing. mixing and matching v4 a
27.
by aap_ 9mo ago
I find it strange that nobody has ever recreated the classic windows desktop faithfully, except for reactos i suppose. But on Linux i think there are quite a few people around who would happily use it. All sorts of themes for other interfac
28.
by aap_ 10mo ago
Nobody ever considers the spinorial version. e^iπ is a 360° rotation on a spinor, and + is averaging spinors rotationally. so e^iπ + 1 = 0 means there is no way to interpolate between the identity and a twist in the spinor, because the axis
29.
by aap_ 10mo ago
Hopefully UNIX v4 will soon be in there too :)
30.
by aap_ 10mo ago
I've wanted to try racket a few times but always found the "IDE" to be really unintuitive, clunky and weird. What gives? Is that by design or is it just that nothing better has been created so far?

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