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NNTP-Posting-Date: Sat, 25 May 2024 19:43:54 +0000
From: john larkin <jl@650pot.com>
Newsgroups: sci.electronics.design
Subject: Re: nice board
Date: Sat, 25 May 2024 12:43:53 -0700
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On Sat, 25 May 2024 11:10:19 -0700, Jeff Liebermann <jeffl@cruzio.com>
wrote:

>On Fri, 24 May 2024 07:57:35 -0700, john larkin <jl@650pot.com> wrote:
>
>>This one
>>https://www.vecteezy.com/photo/33115990-electronic-circuity-intricately-designed-on-circuit-boards-driving-technological-innovations-ai-generated
>>looks like the pilgrimage to Mecca.
>
>You're right.  It does look like the Kaaba:
><https://cdn.britannica.com/43/156343-050-CD194769/pilgrims-Muslim-Kabah-Great-Mosque-of-Mecca.jpg>
>It works something like a compass, where Muslim worshipers face in the
>direction of the Mecca.  That's probably functional if there was only
>one Kaaba, but global proliferation of similar attractors might result
>in some confusion.  I had a sample of that in early college (about
>1965) when the national anthem was played over the public address
>system every morning before the start of classes.  We were expected to
>face the flag, which was rather awkward if we were inside a building
>with no flags in sight.  I would usually end up facing a blank wall or
>a urinal.  
>
>>>My vote for the winner is this AI photo, where all the leads are
>>>shorted together:
>>><https://www.vecteezy.com/photo/24158349-macro-photography-of-electronic-circuit-board-top-view-ai-generative>
>>
>>Cool. These things are always artistically blurred, as if a bad
>>photographer had shot a real photo.
>>
>>Even PCB shops use absurd stock photos of "their" boards.
>
>There's a little more behind image defects and artifacts in
>advertising photography.  I wrote something about it in RBT
>(rec.bicycling.tech) where an obvious PhotoShoped image included
>mistakes intended to extend the time that a reader inspects the image
>trying to determine why the image looks wrong.
><https://rec.bicycles.tech.narkive.com/sGdviHeE/bicycle-infrastucture#post8>
><https://rec.bicycles.tech.narkive.com/sGdviHeE/bicycle-infrastucture#post20>
>
>>I wish my boards had traces that glow. 
>
>You can probably see traces glow in your FLIR camera.  I don't own an
>IR camera (yet) so I use liquid crystal sheets.
><https://www.edmundoptics.com/f/temperature-sensitive-liquid-crystal-sheets/11878/>

We recently bought a few nice thermal imagers with clip-on close-up
lenses, about $700 total. I could post the details next week, if
anyone is interested.