Path: ...!news-out.netnews.com!postmaster.netnews.com!us2.netnews.com!not-for-mail X-Trace: DXC=cQRde:D6d8iReJ8HHRm8_lU5[F2hIijDo7J470dMQQ7kJ4R`5ADBYnbMo;g06So@_g\lfPTGbeKkkNA[Zeg5^Tkgf@HSLgR[]oh7dKkgDfTEDliJPUY0^i>7f X-Complaints-To: support@frugalusenet.com Date: Fri, 26 Apr 2024 15:26:23 -0400 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: OT: central limit theorem Newsgroups: sci.electronics.design References: <662bf69c$0$8484$882e4bbb@reader.netnews.com> Content-Language: en-US From: bitrex In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Lines: 46 Message-ID: <662bffdf$0$8488$882e4bbb@reader.netnews.com> NNTP-Posting-Host: 127.0.0.1 X-Trace: 1714159583 reader.netnews.com 8488 127.0.0.1:44865 Bytes: 3117 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: >> >> >> >> 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. I hate reading on an LCD I stare into an LCD half the live long day anyway, blech. > The "hard back" texts are a lot harder to "process" but are suffering the > same fate.  I wouldn't wish the task of MOVING (or disposing!) the > dead tree collection on my worst enemy... Gotta enforce a one book in, one book out rule man. I've never lived on my own in a residence spacious enough that I had the luxury of just stockpiling tons of stuff in case it might come in handy someday. I don't have an attic, garage, or basement!