@attilakinali@society.oftrolls.com avatar

attilakinali

@attilakinali@society.oftrolls.com

Expert on chocolate consumption

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azonenberg, to random
@azonenberg@ioc.exchange avatar

What's the highest resistivity alloy that is readily available in wire form and solderable with standard Sn based solders?

In particular, are there any materials that can hit tens to ideally hundreds of ohms for a solderable ~33 AWG wire a cm or two long?

attilakinali,
@attilakinali@society.oftrolls.com avatar

@azonenberg Uh... you are deep in the specialty alloy region there. There are quite a few alloys that have high resistivity, but their use is rather uncommon. The heating wires usually don't have a too high resistivity, because one wants to have enough current to get the power to generate heat, without excessive voltage.

Check your local alloy specialist, they might know something.

mansr, to random
@mansr@society.oftrolls.com avatar

Has your anti-virus program ever caught anything? If not, you're either careful with what you click on, or it's not doing a very good job. Whichever the case, you might as well get rid of it.

attilakinali, (edited )
@attilakinali@society.oftrolls.com avatar

@mansr Mine did... 25 years ago... it was a false positive.

stux, to random
@stux@mstdn.social avatar

Why Tipping Is So Out Of Control In The U.S.

https://www.youtube.com/watch?v=q_fMkXHYh6c

attilakinali,
@attilakinali@society.oftrolls.com avatar

@stux Come to Japan, you'll love it. Not only is tipping not a thing here, if you try to tip all kind of awkward situations will happen. I repeat: Do not tip in Japan unless you want to embarrass yourself and whoever you are tipping.

TerryHancock, to random
@TerryHancock@realsocial.life avatar

deleted_by_author

    •
    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @TerryHancock

    attilakinali, to random
    @attilakinali@society.oftrolls.com avatar

    When the Universal Outlet isn't

    penguin42, to random
    @penguin42@mastodon.org.uk avatar

    I strongly recommend against penguin42-tiling and plastering. They'll leave excess grout everywhere and have a fall that's only vaguely flat. Still, the tiles are back on a wall. Leave it a while and I'll get the excess off.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @penguin42 Tiling is a lot harder than it looks. Especially if you want it to look good. Heck, even plastering requires some training to get it right.

    azonenberg, to random
    @azonenberg@ioc.exchange avatar

    A few minutes here and a few minutes there and the switch design is progressing.

    Still working on the power supply, though. Every time I think I'm almost done I find new things that need to be added.

    Dedicated supervisor MCU and five DC-DC modules already. Still have to add the load switch and 3.3V standby regulator plus a bunch more test points and debug headers etc.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @azonenberg If you want me to have a look at the PSU design, feel free to send me the kicad files... though I will probably not able to review them until June.

    flameeyes, to random
    @flameeyes@mastodon.social avatar

    So, there's a British charity that decided to build their own custom website and run their own mailing list management software.

    They didn't protect the sign up form and anyone can sign up anyone else, and have it show up with whichever name they want. Prime harassment source.

    They also didn't protect the form from spammers, so someone used my email address trying to "leave a comment", and I now get emails addressed to "adult sex toys."

    I tried contacting the charity multiple times...

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @flameeyes It's not '99 anymore. If you are any kind of organisation and don't know that you need professional IT for your internet facing stuff, then you deserve the backlash when things go wrong.

    mansr, to random
    @mansr@society.oftrolls.com avatar

    The coronation is being called a once in a lifetime event. However, for anyone older than 70, it's already the second one, and those who are younger have at least a decent chance of outliving the king. I guess twice in a lifetime didn't have quite the same ring to it.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @mansr These days, there are many once in a lifetime events that happen with suspicious regularity.

    Like the Texas power grid failing, massive floods in Europe, worldwide recessions,...
    The word has lost all its meaning.

    azonenberg, to random
    @azonenberg@ioc.exchange avatar

    Random idea that just occurred to me: online research paper reading group.

    At some (probably irregular) interval, the moderator shares a paper link with other members of the group, gives them some time to study it independently, then meet up on zoom to discuss it together.

    If I were to start such a group it would probably focus on test and measurement, networking, and semiconductors with a side of security.

    Anybody interested?

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @azonenberg Count me in!

    azonenberg, to random
    @azonenberg@ioc.exchange avatar

    Anyone have papers, algorithms, code, reading material, etc to suggest for converting a TDR voltage waveform into an impedance profile?

    In particular I'm interested in removing the effects of multiple reflections so I can just see Z vs time assuming an ideal V/T waveform, and not see a bunch of additional peaks from edges echoing around between multiple mismatches in the DUT.

    (SOLT calibration to remove feedline, pulse generator, and directional coupler artifacts, plus fixture de embedding, is a separate, also interesting topic)

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @azonenberg Have you tried google scholar? That returns quite a few: https://scholar.google.com/scholar?hl=en&as_sdt=0%2C5&q=time+domain+reflectometry+impedance&btnG=

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @azonenberg Sort by most cited and look at the bottom of the list. Those are the practical ones that nobody cites because there are no outlandish claims in them 😜

    TerryHancock, to random
    @TerryHancock@realsocial.life avatar

    deleted_by_author

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    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @TerryHancock I'm pretty sure the Ukrainians were not able to read that sign all the way from Kyiv 😜

    Seriously though, in most of Europe it's forbidden to fly drones of any kind over people. And there is an 250g limit before you need to register a drone.

    I would argue that this is not dystopian, but a consequence of people thinking it's ok to fly drones over crowds, some times not even a meter over their heads. Heck, I once saw an idiot doing loops over a busy road during rush hour.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @TerryHancock Hmm... For cyberpunk dystopia, I would expect a gray-teal sky, with lots of rain and orange neon lights flashing in the background... also black trench coats!

    penguin42, to random
    @penguin42@mastodon.org.uk avatar

    Wow Mesa;

    • 3-space indentation, no tabs.

    That solves the 2 vs 4 space war!

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @penguin42 A compromise is something that makes everyone equally unhappy.

    azonenberg, to random
    @azonenberg@ioc.exchange avatar

    Apparently the Swiss dairy industry had their own FOGBANK incident. Wonder how many more times this has happened over time in other industries as process control improved, and just never got published.

    How many products made today contain critical ingredients that the producers aren't intentionally adding, but are artifacts of the process or impurities in a feedstock?

    https://www.youtube.com/watch?v=evV05QeSjAw

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @azonenberg In semiconductors we have the inverse-FOGBANK effect: Noise performance has gotten better over the decades. A lot better. For all semiconductors. Yet we do not know why. All we know is that it is related to the crystal defect rate.

    penguin42, to random
    @penguin42@mastodon.org.uk avatar

    hth did standard deviation become 'stdev' in spreadsheets.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @penguin42 The same way how Excel "forces" biologists to rename proteins and genes.

    https://www.theverge.com/2020/8/6/21355674/human-genes-rename-microsoft-excel-misreading-dates

    TerryHancock, to random
    @TerryHancock@realsocial.life avatar

    deleted_by_author

    •
    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @TerryHancock It's not just efficiency, but also evolutionary pressure. Any newly appearing organism has to compete with already established organisms for the scarce resources. And to top it of, it's made of delicious organic compounds. Any amoeba that passes by would feast on it.

    New life would need to have a separate niche that no other organism enters to be able to thrive. But stable, isolated and unoccupied niches are very rare.

    mansr, to random
    @mansr@society.oftrolls.com avatar

    is around the corner.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @penguin42 @mansr prepreprecaturday

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @mansr @penguin42 So, it's the cat that decides when you post a picture?

    Green_Footballs, to random
    @Green_Footballs@mastodon.social avatar

    Jack Dorsey enthusiastically co-signed the deal that betrayed 200 million Twitter users and handed their accounts over to a fucking right wing egomaniacal billionaire. You’ll have to excuse me if I’m not eager to sign up for another one of this dude’s schemes.

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @Green_Footballs In what way did he betray anyone? Was there ever a promise to keep twitter as it was in 2006? No. Was there a promise to never sell twitter to anyone? No.

    As far as business decisions go, this was the right one. They got an offer that was way beyond what twitter was worth at the time. Would you be able to say no if you would be offered billions of $$$? Not to mention that twitter was financially struggling for a long time and they needed an exit strategy.

    stux, to random
    @stux@mstdn.social avatar

    How 6 Million Pounds Of Electronic Waste Gets Recycled A Month

    Only 17% of electronic waste is recycled. That’s because devices aren’t designed to be recycled. They’re full of tiny, toxic materials that are hard and expensive to break down. But if extracted safely, those materials could mean big money for e-recyclers like Sims Lifecycle Services. We visit Sims’ Tennessee recycling facility to find out why e-waste is getting harder to deal with.

    https://www.youtube.com/watch?v=S2lmPIa1iWE

    attilakinali,
    @attilakinali@society.oftrolls.com avatar

    @stux Building electronics that isn't full of tiny toxic materials and that is easy to recycle is easily possible. It would just drive the cost of it up by a factor of 10. At least.

    Which makes it pretty much impractical in a world where the consumer decides to buy product A instead of product B, because it's just 1% cheaper, even if it is known that product A is of worse quality and only lasts half as long as product B.

    attilakinali, to random
    @attilakinali@society.oftrolls.com avatar

    Never leave till tomorrow that chocolate which you can eat today.

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