The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

Category: Oddities

Who’d’a thunk it?

  • Survey Registration Number: Faceplant

    A giant envelope containing one of those “political surveys” that’s actually a thinly disguised fundraiser arrived, with this confidence-inspiring ID in the upper-right corner:

    Survey Registration Number
    Survey Registration Number

    The questions were all examples of false dichotomies.

    A pox on their backsides, sez I.

  • Public Facilities Maintenance: Progress

    A day or so after kvetching about that informal DCRT vehicle entrance to the head planner developing the Dutchess County Master Plan for bicycle & pedestrian facilities, this appeared:

    DCRT Overocker Crossing - block on informal entrance
    DCRT Overocker Crossing – block on informal entrance

    Notice the blue electrical junction box on the right? That can’t possibly be a Good Thing… but, so far, it doesn’t seem to bother anybody enough to repair it.

    Those missing ADA strips at Grand have been swept out, converting them into rough-bottomed trenches across the trail. At least they’re not quite so slip-prone, even if they’re still a tripping hazard.

  • Semiconductors From eBay: A Tinge Of Doubt Crosses My Mind

    So I picked up a lot of 20 p-channel MOSFETs from the usual eBay supplier in China, which arrived in good order. As is often the case, the SOIC chips are in snippets of tape-and-reel carrier, but this tape looked decidedly odd:

    eBay FDS6675 Tape Cover Contamination
    eBay FDS6675 Tape Cover Contamination

    Peeling back the tape shows that the crud is just on (or perhaps inside) the tape, not on the ICs or inside the carrier pockets:

    img_3456 - eBay FDS6675 Tape Cover Contamination - interior
    img_3456 – eBay FDS6675 Tape Cover Contamination – interior

    Some of those specks are dirt, some seem to be bubbles, other are just, well, I don’t know what they might be. Maybe they were having a bad day in the tape factory?

    One might reasonably conclude the chips aren’t in their original carrier…

    I must gimmick up a quick test to verify that the chips behave like p-channel MOSFETs, instead of, oh, solid plastic; that Fairchild logo looks a bit grotty, doesn’t it?

  • Decorative Slug

    This critter trundled across the driveway after a shower wetted the area:

    Orange slug on asphalt
    Orange slug on asphalt

    They do some damage in the garden, but we let them alone elsewhere…

  • Jerusalem Cricket vs. Dust Bunny

    Sometimes crickets make their way into the basement. This one, a model that I’ve always known as a Jerusalem Cricket(*) evidently lost a pitched battle with one of the Dust Bunnies guarding the Basement Laboratory:

    Jerusalem Cricket vs Dust Bunny - top view
    Jerusalem Cricket vs Dust Bunny – top view

    A rear view:

    Jerusalem Cricket vs Dust Bunny - rear view
    Jerusalem Cricket vs Dust Bunny – rear view

    From the front:

    Jerusalem Cricket vs Dust Bunny - front view
    Jerusalem Cricket vs Dust Bunny – front view

    I deported it to the flower garden outside the basement door, where I hope it can brush off the Bunny’s entrapments…

    It may not be a Jerusalem Cricket, because they’re more common out west, but that’s the best match in our bug books and that’s what we’ve always called them.

    [Update: (*) It’s most likely a Cave Cricket. See the comments for details.]

  • Blueberry Season: Stink Bug Eggs

    Mary’s been picking blueberries and freezing them for winter treats, a process that involves inspecting each berry laid out on the tray.

    This one failed QC:

    Blueberry with eggs - overview
    Blueberry with eggs – overview

    A closer look shows some remarkable structures:

    Blueberry with eggs - detail
    Blueberry with eggs – detail

    Unfortunately, they’ll probably turn into Brown Marmorated Stink Bugs. This is not a Good Thing, because those stink bugs will devastate fruit harvests, including all the apple orchards along the entire Hudson Valley, over the next few years.

    They may be Predatory Stink Bugs, which would be unusual in Dutchess County, but not nearly so awful.

  • Why Friends Don’t Let Friends Run Windows: Product Pictures? Really?

    This email worked its way through the filters:

    Dear Business Partner,

    We are very much interested in some of your product. We try to contact you online but you are not online so we decided to attach the picture of the product we need to dropbox and put it in your offline. Open the bellow link and download the attachment to preview the product we need:

    ... dropbox url snippage ... /Product%20Pics.rar

    Let me know if the product is still available for sale and how much it costs, also tell us the product details.

    Regards,
    Allen Moore,
    Procurement Officer,
    International Product Buyers

    Well, I don’t generally rebuff the humble, but I don’t have any “product” for sale. Also pulling the suspicion trigger:

    • To: Recipients <Procurement@Officer.com>
    • Subject: Open Attachment For Product Picture

    It’s not clear what “attach the picture of the product we need to dropbox and put it in your offline” might mean. Despite the Dropbox URL, the email sported an attachment named Product\ Pics.rar, showing they come from a different universe wherein every operating system has a native RAR extraction program.

    Being a dutiful citizen of the Interwebs, I did what the nice man asked:

    unrar e Product\ Pics.rar

    That produced a single file which RAR described thusly:

    Extracting Product Picjpg.SCR

    At least that’s what it looked like on the command line. I think they were trying to overwrite the SCR with the jpg, as the file name was really Product Pic<U+202E>RCS.gpj, but the Unicode U+20E bidirectional text control character seems to be in the wrong place. I think they wanted Product Pic.SCR<U+202E>gpj, but I also confess to having no experience with sixth-level Unicode direction reversal rendering.

    Anyhow, handing the entire RAR archive to VirusTotal produces the expected result:

    VirusTotal - Product Pics malware file
    VirusTotal – Product Pics malware file

    It’s disconcerting to see ClamAV asleep at the switch on this one, but signature detection has become decreasingly relevant these days.

    I opted to not respond to the request..