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From: John Larkin <jjSNIPlarkin@highNONOlandtechnology.com>
Newsgroups: sci.electronics.design
Subject: Re: OT: central limit theorem
Date: Sat, 27 Apr 2024 07:02:32 -0700
Organization: Highland Tech
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On Sat, 27 Apr 2024 12:15:54 +0200, albert@spenarnc.xs4all.nl wrote:

>In article <662bffdf$0$8488$882e4bbb@reader.netnews.com>,
>bitrex  <user@example.net> wrote:
>>On 4/26/2024 3:10 PM, Don Y wrote:
>>> On 4/26/2024 11:46 AM, bitrex wrote:
>>>> I have one of these inexpensive Ikea bookshelves for storing some of my
>>>> electronics books:
>>>>
>>>> <https://www.ikea.com/us/en/p/laiva-bookcase-black-brown-40178591/>
>>>>
>>>> I noticed the center shelf was starting to sag a few degrees. :( The
>>>> assembly manual specifies a weight limit of 33 lbs evenly distributed
>>>> which seemed like an oddly specific number. So I weighed the books on
>>>> the shelves, which aren't particularly well organized other than to
>>>> fully fill the available space widthwise on each shelf.
>>>>
>>>> A random assortment of hardbacks and paperbacks, some are tall and
>>>> skinny, some are short and fat. And each shelf was clocking in at 33
>>>> lbs +/- 2 lbs.
>>>>
>>>> So I guess a heuristic for filling these shelves is just fill 'em up
>>>> then remove the heaviest book, and de-rate the center shelf by maybe
>>>> 5- 10 lbs because it's unsupported by a backing.
>>>
>>> Smarter move is to buy all of your texts in electronic form, before you
>>> end up with a shitload of dead trees!
>>>
>>> When I moved here (~30 yrs), I had some 80 "Xerox Paper" cartons full
>>> of paperbacks -- not counting "text books".  (I read ~500pp/wk)  Take
>>> a moment to think of that volume (let alone MASS!).
>>>
>>> I eventually scanned everything with a Perfect Binding and now fit those
>>> same books on a single microSD card (in a Nook; PDFs on a 12" tablet).
>>
>>PDFs are a dreadful format! Maybe there's a high-end e-ink that
>>processes them effectively but they look like shit on the cheaper ones
>>like most of the Kindles with e-ink displays.
>
>PDF's are fearful. It is under control of one company, Adobe.
>It is changed without notice. I regret the change away from PostScript
>that at least was defined.
>
>Groetjes Albert

I don't run any Adobe software. I run several programs that export
PDFs, and a viewer/virtual printer program handles the rest. Firefox
will view PDFs too.

PDFs look good and are a good way to deliver manuals and such.