Nice! I love how mermaid keeps getting better!
For sequence-diagrams, nothing beats https://sequencediagram.org/ (I am not connected with them in any way, just a happy user)
Readit Newsmaho commented on Show HN: GUI for editing Mermaid class diagrams docs.mermaidchart.com/blo... · Posted by u/knsv
I need this, but for heatpump noise.
It's mostly broadband noise that can be simulated by simpler methods, but visualizing possible resonance patterns for the low-frequency emissions from the compressor (which typically runs at 20Hz, 40Hz, ..., 120 Hz) would be good to know.
Although I am not sure how the 2d simulation result carries over to the 3d world...
The pronounciation of math symbols is hilarious, but not super useful. Prompt: "Give me Maxwell's equations".
Besides DROOLS, what other production-ready rule-based-engine options are there?
I really like nools, which is a drools clone, but for JavaScript. It's fantastic for quick hacks and for getting to know how to write code for rule engines.
Sadly, it is no longer maintained.
maho commented on Show HN: Darwin – Automate Your GitHub Project with AI darwin-ai.dev... · Posted by u/mlamina
Let's say I want to have a somewhat genereric CRUD-app: A database, some application logic, a login system, logging/telemetry and a UI.
What kind of stack should I use so that tools like Darwin (or just plain old copilot) can be most effective?
maho commented on 100kHz to 6GHz 2 port USB based VNA github.com/jankae/LibreVN... · Posted by u/sleepingreset
This is insane. The project includes the hardware (GHz-capable RF-generation and measurement), firmware (FPGA) and Software (a cpp GUI). Surely that can't be all from one person?
Is there a way I can give feedback on wrong labels? The easy questions seem to be correct most (all?) of the time, but I noticed a few errors in the labelling of the complex question/answers. I would love to see this improve even further!
maho commented on Aldi: Culture and Operations of a Hard Discounter (2023) inpractise.com/articles/a... · Posted by u/alexzeitler
I absolutely love Aldi -- they do several big and subtle (with big results) things that other retailers fail on:
(1) Their store brands are consistently on-par or better than the name brands. It's no "Kirkland Signature" but I've found short of about three things, I like the Aldi product better[0].
(2) Their prices are good enough that I don't have to plan with coupons/nonsense. I analyzed this a few years ago (so long ago that newspaper coupons were still the only "real" coupons offered by food vendors) and found it was worth the time savings to skip the chore and just go to Aldi.
(3) Their "Aisle of Shame" (close-out random goods) is fun. I frequently find excellent products at ridiculous prices ($30 off-brand blender worked longer than the $200 I replaced it with).
(4) Their near-frustration free check-out.
Honestly #4 is the reason. Their check-out staff will rip through a cart faster than you can unload the groceries. They can do this because Aldi ensures their store branded products have barcode labels that extend the length of the box and appear on nearly every surface[1] (and they minimize the movements required of their staff to perform that job). You can have 4 people with full carts in front of you and they're cleared out before a typical Walmart scanner handles one half-full cart.
When I saw they introduced self-checkout, my heart sunk, but I used it. I think it's the only automated check-out system I've used that works. You get that product anywhere near the laser and it scans. It's amazing how much of that process comes down to the barcode scanner working properly.
[0] In one case -- their Mocha iced coffee -- I can't drink other brands any longer
[1] In some cases they slap a barcode on non-store branded products.
If memory serves correctly, Aldi Nord was one of the last big supermarket chains in Germany to introduce scanners at the registers (2003?), because their existing system was simply faster: Each item had a three-digit code, and all cashiers knew all codes by heart.
It was a race between me placing items on the conveyor belt and them ringing the items up. Oh the embarrassment when they told me the total as I was placing the last item on the conveyor belt.
maho commented on New theory claims to unite Einstein's gravity with quantum mechanics phys.org/news/2023-12-the... · Posted by u/dotnet00
After skimming the second paper, I still don't understand how precision mass measurements come into play here. They mention Cavendish-type measurements, but they are used for measuring the gravitational constant. Of course, you can turn the formula around, plug an unknown mass into the apparatus and then call it a mass measurement, but it's going to be a very imprecise measurement. A Penning trap can give you 11 to 12 significant digits -- a Canvendish-type measurement could give you maybe 5 or so, I think.
Or is it because the Penning trap measures "inertial mass" but they really want a measurement of "gravitational mass"? But wouldn't inertial mass fluctuate the same way?
But then the original meaning of vibe-coding -- as in, "Take the wheel, LLama of God" -- does need a new term, because that will also be a lasting phenomenon. I propose "Yolo-Coding" -- It fits in nicely with the progression of No-Code, Low-Code, Yolo-Code.
It's a bit more technical. And it has a three-letter acronym. Gotta have a three letter acronym.