signaturefish

Joined 8 years ago

Karma
104
Submissions
43
Member since
Dec 4
By day, a documentation engineer for ARM Ltd (comments etc are mine not theirs, you know how this works, I'm not speaking for them). By night, a cyclist and geek of engineering of all sorts, with a sideline in roleplay games. I'm probably not terribly interesting.
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Recent submissions

Comment · 1 month ago
Yeah, that - but also, I don't want to train myself out of conversational politeness, for those times I'm speaking to an human instead of a machine.
Comment · 5 months ago
(hackeridiot12 may be Jewish - IME Jews often type "G-d" because spelling the deity's name in impermanent text is disrespectful. Bit odd from my perspective, but harmless :))
Comment · 8 months ago
Foundation licensee here in the UK, working on my Intermediate (and hoping to pass that exam this year). I manage the radio system for the UK Discworld Convention (every other year, next instance August 2026), and I spend a chunk of time on the VHF repeater near me, in the Cambridge area (mostly listening).

5 and 5, 73.

Comment · 1 year ago
Simplified English is a thing that exists, for clarity - see for example https://simple.wikipedia.org/wiki/Practice

I don't know if the parent comment was trying to equate American English and Simple English - I can see it as a way to dismiss American English as a "lesser" language (which it isn't, as you say), but I wouldn't start by assuming that.

Comment · 1 year ago
XRF will go a millimetre or so into the sample AFAIK - it's mainly useful for finding alloy contamination, e.g. "this is 99.99% gold" vs "this is 73% gold and 27% other things" - you really want to use both techniques. Resistivity/conductivity is about average composition, XRF is about elemental purity.
Comment · 1 year ago
Huh, impressive - I guess I'm out of date (and/or the people I listen to about such things have a working XRF already and don't want to replace a working unit).
Comment · 1 year ago
On the individual scale, something like a Sigma Metalytics resistivity analyser (passes an electric field through the sample, checks to see if resistivity, conductivity, weight or size all match up to what you'd expect from a homogeneous gold sample of that size or weight). On the commercial scale, an XRF spectrometer. Both methods are completely non-destructive, and highly accurate (the XRF more so).

(the two scales are due to price and bulk: the Sigma is about the size of a hardback book and a few hundred pounds, an XRF is the size of a large 3d-printer and many thousands).

Comment · 1 year ago
I don't think it's a dumb question, though I guess some might question its relevance. Side-comments can be interesting, though.

I don't know why they did it, but it follows the same pattern as the pi400 - develop a whole new board, rather than a daughterboard for the pi4 compute module. If I had to guess, it's probably about reducing e-waste: if someone wants a compute module and it's out of stock but there are pi500s available, why wouldn't they buy a pi500, strip the compute module out and dump the rest of the machine in the bin?

And to be fair to them, they're dogfooding a fair amount - the RP1 and the RP2 are in the design, rather than a generic southbridge and keyboard controller.

Comment · 2 years ago
Three "bad" missiles over a five minute period. The hit on the WCK convoy killed the latest 7 out of over 200 aid workers who have been killed in Gaza since this latest war began.
Comment · 3 years ago
Do you have a copy of the hardware manual for the thing? If so, I believe the Connections Museum would love to borrow it :)
Comment · 3 years ago
Comment · 3 years ago
The thing is, there ARE chunks of spectrum dedicated to digital comms within the amateur radio bands.

Here's a link to the VHF band plan we use here in the UK - obviously I can't speak for other countries: [https://rsgb.services/public/bandplans/19/ ]. It's _littered_ with SSTV, beacon and digital mode allocations (and for clarity, that's a good thing). The digital mode allocations are full of people chatting in text using FT-8 or JS8Call (more in HF than VHF, those, but the principle holds). On the next page, there's an entire 1MHz allocation dedicated to wideband digital data modes.

If you're a licensee, there's plenty of innovation and digital experimentation space available. Sure, a chunk of the traditionalist ham community aren't excited about it, but there's plenty of us who are. And, as ever, you don't need a license to receive...

Comment · 3 years ago
TBH, I don't have a problem with Rust so much as I have/had a problem with a section of the rust community.

The shouting fanbeings of rust put me off looking into it for years, because when I kept getting "rewrite it in rust!" as the answer to "there's a problem with $THIS_CODE" when talking with colleagues, _even when those colleagues had minimal rust experience_, all I could conclude was that the whole thing was an empty promise and that no-one knew how to solve the problem, but everyone "knew" that the New Cool Language was the way to fix everything.

Generalisation from incomplete data - no doubt there was a sensible majority in the rust community, but the fanbeings were _loud_.

FWIW I was wrong: I'm getting into rust now and I like what I see, and the discussions around it online and with colleagues are pretty sensible. But, it's taken a while to get there and when you've been in tech for a couple of decades you see this hype cycle and get jaded to it. Erlang is the new hotness ... OCaml is the new hotness ... Java is the new hotness, rewrite everything in Java, wait C# is the new hotness...

I suspect rust is here to stay, and I'm gonna learn more about it, and I regret some of my past words about it. But my problem was never with the increased memory safety, or the language at all, pretty much, just the early community.

TL;DR: Other humans are the worst, bug reported, fix unlikely :)

Comment · 3 years ago
No, but I see what you mean. Generating hydrogen and methane using electricity will probably never be that efficient, but if you have spare power then using it to get 60% of its energy back again in the form of future burnables may still be worth it (percentage guessed and probably optimistic).

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