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?

  • A Curiosity of Sparrows

    There’s obviously something going on inside the long-abandoned nesting box:

    Sparrow investigating bird box
    Sparrow investigating bird box

    You’ve seen this happen to people, too:

    More sparrows on the bird box
    More sparrows on the bird box

    How many sparrows can fit on the roof of a bird box?

    Four sparrows investigating bird box
    Four sparrows investigating bird box

    There’s always room for one more:

    Late season sparrows on bird box
    Late season sparrows on bird box

    Perhaps they were having a family reunion?

    Taken with the Canon SX230-HS from the patio, zoomed all the way, and ruthlessly cropped.

  • Diurnal Pumping, Fluid Division

    I caught this just before it made a mess:

    Sta-Bil jar - diurnal pumping
    Sta-Bil jar – diurnal pumping

    That container lives in the garage, where the air temperature pretty much tracks the weather.

    When the air in the main compartment heats up, it pushes fluid up into the dispensing compartment. Although both caps were screwed on finger-tight, apparently the smaller cap leaks just enough that the pumped fluid can push the air out through the not-so-good seal.

    Another few weeks and it’d be sitting in a puddle!

  • High-availability, High-reliability Trash Can

    We spotted this upgrade on a recent trip to a Powerhouse Theater production:

    Vassar Old Main - High-availability Trash Can
    Vassar Old Main – High-availability Trash Can

    Compared with the older version, I’d say it’s a great improvement:

    Vassar Old Main - Broken Trash Can 1
    Vassar Old Main – Broken Trash Can 1

    Who says things never get better?

  • Skeuomorphism Gone Wild

    This truck’s home base seems to be south of Maloney on Rt 376 and it occasionally passes me on the road:

    Farmers and Chefs Food Truck
    Farmers and Chefs Food Truck

    My eye-blink reaction that it was a junker turns out to be completely wrong, as it sports a really great paint job (vinyl wrap?):

    Farmers and Chefs Food Truck - Detail
    Farmers and Chefs Food Truck – Detail

    The junker aspect may not be quite what they expected…

    I’m not sure that’s skeuomorphic, but I don’t know the proper term.

  • The Curious Incident of the Dog in the Night-time

    We are not dog people, so being awakened at 12:45 one morning by a large dog barking directly under the bedroom windows wasn’t expected. After a bit of flailing around, I discovered the dog parked under the windows on the other end of the bedroom:

    Dog on patio
    Dog on patio

    That’s entirely enough dog that I was unwilling to venture outside and attempt to affix it to, say, the patio railing, where it could await the town’s animal control officer in the morning:

    Dog upright
    Dog upright

    It’s not a stray, because it wears two collars: one with leash D-rings and the other carrying a black electronics box that could be anything from a GPS tracker to a shock box that’s supposed to keep it inside one of those electronic fences. If the latter, a battery change seems past due.

    Being a dog, it spent the next two hours in power-save mode on the patio, intermittently moaning / growling / barking at every state change in the back yard: scurrying rodents, falling leaves, far-distant sirens, neighborhood dogs, you name it. We would be dog people to want that level of launch-on-warning, but we’re not.

    If parvovirus were available through Amazon Prime, I’d be on it like static cling. By the kilogram on Alibaba, perhaps?

    Grainy photos taken in Nightshot IR mode with the DSC-F717, which works well enough after I (remember to) jiggle the Memory Stick to re-seat the ribbon cable connections.

    Hat tip to Sherlock in Silver Blaze.

  • Garden Shelter, Now With Toad

    Mary used a garbage can lid to shelter some plants, left it in the garden for a while, and a critter moved into the new shelter. She first noticed two well-prepared front entrances:

    Garden shelter - front entrances
    Garden shelter – front entrances

    And a rear entrance or, perhaps, the emergency exit:

     Garden shelter - rear entrance
    Garden shelter – rear entrance

    Gingerly lifting the lid, she found a dismantled bird corpse:

    Garden shelter - bird corpse
    Garden shelter – bird corpse

    Along with a large stash of sour cherries from a nearby bush:

    Garden shelter - sour cherry stash
    Garden shelter – sour cherry stash

    A good-size toad kept an eye on the proceedings:

    Garden shelter - toad in lair
    Garden shelter – toad in lair

    We didn’t know toads ate sour cherries, but the evidence seems clear:

    Garden shelter - toad on sour cherries
    Garden shelter – toad on sour cherries

    The image of a toad taking down a bird can’t be unseen, but, more likely, a recently fledged nestling took shelter and couldn’t figure out how to get out again.

    We’ll never know the rest of the story.

  • eBay Listings: Read Carefullly

    What’s wrong with this picture? (clicky for more dots)

    eBay - 40 pin IDC cable - header
    eBay – 40 pin IDC cable – header

    Not obvious?

    Here’s the description, slightly reformatted for clarity:

    New 5m IDC Standard 40 WAY 1.8” Multi-Color Flat Ribbon Cable Wire Connector

    Description

    Type: IDC standard.

    10 colors, 4 group, total 40 pcs cables per lot

    5 meter per lot.

    width: 4.7 cm / 1.8 inch

    Package content: 5M Flat Color Ribbon Cable

    If you divide the 1.8 inch cable width by its 40 conductors, you find the wires lie on a 45 mil pitch. If you were expecting this “IDC standard” cable to fit in standard insulation displacement cable connectors with a 50 mil pitch, you’d be sorely disappointed. You can get metric ribbon cable with a 1 mm = 39 mil pitch, but this ain’t that, either.

    Here’s what an individual eBay wire (black jacket) looks like, compared to a wire from a standard ribbon cable (red jacket):

    Ribbon cable - 26 AWG - eBay vs standard
    Ribbon cable – 26 AWG – eBay vs standard

    A closer look at the strands making up the wires:

    Ribbon cable - 26 AWG - eBay vs standard - strands
    Ribbon cable – 26 AWG – eBay vs standard – strands

    As nearly as I can measure with my trusty caliper, the eBay ribbon cable has wire slightly smaller than 30 AWG, made up of seven 40 AWG strands, as opposed to standard 26 AWG wire made of seven 34 AWG strands. The good stuff might be 28 AWG / 7×36 AWG, but I was unwilling to break out the micrometer for more resolution.

    I’d like to say I noticed that before buying the cable, but it came to light when I measured the total resistance of the whole cable: 80 Ω seemed rather high for 200 meters of 26 AWG wire. The wire tables say that’s about right for 31 AWG copper, though.

    Changing the AWG number by three changes the conductor area by a factor of two, so you’re getting less than half the copper you expected. Bonus: it won’t fit any IDC connectors you have on the shelf, either.

    Turns out a recent QEX article suggested building an LF loop antenna from a ribbon cable, so I was soldering all the conductors in series, rather than using connectors, and it should work reasonably well despite its higher DC resistance.