Re: hobby electronics

On 7/6/2024 6:22 AM, BillGill wrote:

On 7/5/2024 11:51 AM, Don Y wrote:

Ah, I would consider capturing the images in this manner to
be slow.  You have to manually flip pages and reposition the
book in the scanner -- ?  It's got to take 10+ (20+??) seconds
to perform that action?  So, even a 250p "pocket paperback"
would be > 1200 (2400??) seconds just to scan!  And then "collect"?
>
[I.e., 95K scans would have taken 950K seconds -- 16000 minutes
(~250 hours)]

 Generally photographing the pages takes me 30 minutes to
an hour.  I mostly scanned books of 250 to 300 pages.

So, that would be about 10 seconds per "page turn"
I "process" (start to finish) about 1000 pp/hour.  I tend to
think in terms of pages and not titles; e.g., I will "chop"
some number of titles to get a stack of about 1000 pp before
heading over to place them in the scanner.  Then, access the
files (the scanner places them in a network share) to sort
out which groups of pages are in which files (so I know which
files to combine into a particular book).
Then, grab another similarly sized pile of books  and repeat.
(when in "scanning mode", I tend to do about 5000-6000 pages
before the boredom/tedium becomes overwhelming)

And most of the books, being older, were somewhat smaller.
There weren't a whole lot of 1000 page fiction works
in the 'good old days'.

Yes -- definitely true of "pocket books".  Do you have
to take care in positioning the book to ensure it is in the
cameras' focused field?  I.e., the scanner approach automatically
crops the image to the actual page size so you just load pages
and wait -- to load MORE pages.

I think that the increase in the size of books can
probably be blamed on word processors.  With a
word processor you can revise, insert and delete
text a lot more easily than with a typewriter.

Yes.  I attributed it to authors/publishers wanting to
charge more than 60c for a title.  And, with the mainstream
acceptance of computers, it seemed like all of the books/manuals
about them were sold by the pound -- despite only regurgitating
material that was present in the OEM documentation.
OTOH, manuals for software quickly became thick tomes.  My first
AutoCAD manual was a hardbound, oversized book.  And, manuals for
productivity suites, compilers, etc. were easily 1/4 of a shelf's
width.
Of course, textbooks have always been on the heavy side.
I think my thinnest titles were for Probabilistic Systems Analysis
and perhaps Abstract Algebra (or, maybe diff-eqs?).
And, databooks/application notes fill shelves really quickly!