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#sliderule

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IT News<p>Unwinding an Unusual Slide Rule - If the Otis King slide rule in [Chris Staecker’s] latest video looks a bit familia... - <a href="https://hackaday.com/2025/05/12/unwinding-an-unusual-slide-rule/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/05/12/unwind</span><span class="invisible">ing-an-unusual-slide-rule/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/otisking" class="mention hashtag" rel="tag">#<span>otisking</span></a></p>
IT News<p>Mechanical Calculator Finds Derivitives - We like mechanical calculators like slide rules, but we have to admit that we had ... - <a href="https://hackaday.com/2025/01/06/mechanical-calculator-finds-derivitives/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/01/06/mechan</span><span class="invisible">ical-calculator-finds-derivitives/</span></a> <a href="https://schleuss.online/tags/derivimeter" class="mention hashtag" rel="tag">#<span>derivimeter</span></a> <a href="https://schleuss.online/tags/derivitive" class="mention hashtag" rel="tag">#<span>derivitive</span></a> <a href="https://schleuss.online/tags/mischacks" class="mention hashtag" rel="tag">#<span>mischacks</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/calculus" class="mention hashtag" rel="tag">#<span>calculus</span></a></p>
IT News<p>The Genius of Slide Rule Precision - Most people have heard of or seen slide rules, with older generations likely havin... - <a href="https://hackaday.com/2024/05/29/the-genius-of-slide-rule-precision/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/05/29/the-ge</span><span class="invisible">nius-of-slide-rule-precision/</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/science" class="mention hashtag" rel="tag">#<span>science</span></a></p>
AstroKiste 🏴<p>Best <a href="https://mastodon.social/tags/pocket" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pocket</span></a> <a href="https://mastodon.social/tags/calculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>calculator</span></a> I own. Needs no batteries. <a href="https://mastodon.social/tags/sliderule" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sliderule</span></a> <a href="https://mastodon.social/tags/analog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>analog</span></a> <a href="https://mastodon.social/tags/rechenschieber" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rechenschieber</span></a> <a href="https://mastodon.social/tags/rechenstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rechenstab</span></a> <a href="https://mastodon.social/tags/taschenrechner" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>taschenrechner</span></a></p>
IT News<p>Joost Bürgi and Logarithms - Logarithms are a common idea today, even though we don’t use them as often as we u... - <a href="https://hackaday.com/2024/02/27/joost-burgi-and-logarithms/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2024/02/27/joost-</span><span class="invisible">burgi-and-logarithms/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/logarithms" class="mention hashtag" rel="tag">#<span>logarithms</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a></p>
IT News<p>Calculation Before We Went Digital - We have to like [Nicola Marras]. First, he wrote a great mini-book about analog co... - <a href="https://hackaday.com/2023/12/17/calculation-before-we-went-digital/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2023/12/17/calcul</span><span class="invisible">ation-before-we-went-digital/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/calculator" class="mention hashtag" rel="tag">#<span>calculator</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a></p>
IT News<p>Pocket Calculator isn’t a Brain or Magic - If you predate the pocket calculator, you may remember slide rules. But slide rule... - <a href="https://hackaday.com/2023/10/20/pocket-calculator-isnt-a-brain-or-magic/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2023/10/20/pocket</span><span class="invisible">-calculator-isnt-a-brain-or-magic/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/calculator" class="mention hashtag" rel="tag">#<span>calculator</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/teardown" class="mention hashtag" rel="tag">#<span>teardown</span></a></p>
Sarah Libman<p>Charity shop swag: a micrometer (with an inch-based scale), the Aristo MultiLog 970 (accept no substitutes) and Bletchley Park Top Trumps. Excellent. <a href="https://mastodon.social/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>retrocomputing</span></a> <a href="https://mastodon.social/tags/sliderule" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sliderule</span></a> <a href="https://mastodon.social/tags/engineering" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>engineering</span></a> <a href="https://mastodon.social/tags/computing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>computing</span></a></p>
Inaction Figure<p>Just as an introductory post, here are a few interesting slide rules from my collection... <a href="https://fosstodon.org/tags/sliderule" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sliderule</span></a> <a href="https://fosstodon.org/tags/sliderules" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sliderules</span></a></p>
Thilo, EE 🤘🏼🇪🇺⚛🎗️<p><span class="h-card"><a href="https://spacey.space/@PointyEndUp" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>PointyEndUp</span></a></span> Maybe you also need to scale it up? 🤔😁 </p><p>(I'll have to see if I have photos of my Pickett slide rules, too. Too lazy to open the boxes. 😇)</p><p><a href="https://oldbytes.space/tags/SlideRule" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SlideRule</span></a> <a href="https://oldbytes.space/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RetroComputing</span></a></p>
AstroKiste 🏴<p>Best <a href="https://chaos.social/tags/pocket" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pocket</span></a> <a href="https://chaos.social/tags/calculator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>calculator</span></a> I own. Needs no batteries. <a href="https://chaos.social/tags/sliderule" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sliderule</span></a> <a href="https://chaos.social/tags/analog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>analog</span></a> <a href="https://chaos.social/tags/rechenschieber" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rechenschieber</span></a> <a href="https://chaos.social/tags/rechenstab" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rechenstab</span></a> <a href="https://chaos.social/tags/taschenrechner" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>taschenrechner</span></a></p>
IT News<p>Laser-Engraving Hairlines: When a Line Isn’t a Line - When is a line not a line? When it’s a series of tiny dots, of course!<br />The line is... - <a href="https://hackaday.com/2022/05/29/laser-engraving-hairlines-when-a-line-isnt-a-line/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2022/05/29/laser-</span><span class="invisible">engraving-hairlines-when-a-line-isnt-a-line/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/laserengrave" class="mention hashtag" rel="tag">#<span>laserengrave</span></a> <a href="https://schleuss.online/tags/laserhacks" class="mention hashtag" rel="tag">#<span>laserhacks</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/tektronix" class="mention hashtag" rel="tag">#<span>tektronix</span></a> <a href="https://schleuss.online/tags/hairline" class="mention hashtag" rel="tag">#<span>hairline</span></a></p>
IT News<p>Genaille’s Rods: When Paint Sticks Do Math - What is a hacker, if not somebody who comes up with solutions that other just don’... - <a href="https://hackaday.com/2022/04/26/genailles-rods-when-paint-sticks-do-math/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2022/04/26/genail</span><span class="invisible">les-rods-when-paint-sticks-do-math/</span></a> <a href="https://schleuss.online/tags/multiplication" class="mention hashtag" rel="tag">#<span>multiplication</span></a> <a href="https://schleuss.online/tags/toolhacks" class="mention hashtag" rel="tag">#<span>toolhacks</span></a> <a href="https://schleuss.online/tags/oldschool" class="mention hashtag" rel="tag">#<span>oldschool</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/division" class="mention hashtag" rel="tag">#<span>division</span></a> <a href="https://schleuss.online/tags/history" class="mention hashtag" rel="tag">#<span>history</span></a> <a href="https://schleuss.online/tags/maths" class="mention hashtag" rel="tag">#<span>maths</span></a></p>
IT News<p>Rubber Band “Slide Rule” Doesn’t Slide, but Rotates - Around here we mostly enjoy slide rules. We even have our own collections includin... - <a href="https://hackaday.com/2022/04/04/rubber-band-slide-rule-doesnt-slide-but-rotates/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2022/04/04/rubber</span><span class="invisible">-band-slide-rule-doesnt-slide-but-rotates/</span></a> <a href="https://schleuss.online/tags/logarithms" class="mention hashtag" rel="tag">#<span>logarithms</span></a> <a href="https://schleuss.online/tags/mischacks" class="mention hashtag" rel="tag">#<span>mischacks</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/math" class="mention hashtag" rel="tag">#<span>math</span></a></p>
IT News<p>Circuit VR: The Wheatstone Bridge Analog Computer - We are always impressed with something so simple can actually be so complex. For e... - <a href="https://hackaday.com/2022/03/31/circuit-vr-the-wheatstone-bridge-analog-computer/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2022/03/31/circui</span><span class="invisible">t-vr-the-wheatstone-bridge-analog-computer/</span></a> <a href="https://schleuss.online/tags/wheatstonebridge" class="mention hashtag" rel="tag">#<span>wheatstonebridge</span></a> <a href="https://schleuss.online/tags/analogcomputer" class="mention hashtag" rel="tag">#<span>analogcomputer</span></a> <a href="https://schleuss.online/tags/voltagedivider" class="mention hashtag" rel="tag">#<span>voltagedivider</span></a> <a href="https://schleuss.online/tags/engineering" class="mention hashtag" rel="tag">#<span>engineering</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/history" class="mention hashtag" rel="tag">#<span>history</span></a> <a href="https://schleuss.online/tags/falstad" class="mention hashtag" rel="tag">#<span>falstad</span></a></p>
IT News<p>Design and Build Your Own Circular Slide Rule - You have to really like slide rules to build your own, including the necessary art... - <a href="https://hackaday.com/2021/09/25/design-and-build-your-own-circular-slide-rule/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2021/09/25/design</span><span class="invisible">-and-build-your-own-circular-slide-rule/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/laserengraver" class="mention hashtag" rel="tag">#<span>laserengraver</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/haskell" class="mention hashtag" rel="tag">#<span>haskell</span></a></p>
Ed S<p>My old computer treasures for <a href="https://mastodon.sdf.org/tags/retrofriday" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>retrofriday</span></a>...</p><p><a href="https://mastodon.sdf.org/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>retrocomputing</span></a> <a href="https://mastodon.sdf.org/tags/bbcmicro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bbcmicro</span></a> <a href="https://mastodon.sdf.org/tags/psion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>psion</span></a> <a href="https://mastodon.sdf.org/tags/sliderule" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sliderule</span></a></p><p><span class="h-card"><a href="https://mastodon.social/@thomasfuchs" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>thomasfuchs</span></a></span></p>
IT News<p>Homebrew Slide Rule Gets Back to Mathematical Basics - In the grand scheme of things, it really wasn’t all that long ago that a slide rule was part of an... - <a href="https://hackaday.com/2020/11/11/homebrew-slide-rule-gets-back-to-mathematical-basics/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2020/11/11/homebr</span><span class="invisible">ew-slide-rule-gets-back-to-mathematical-basics/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/analogcomputer" class="mention hashtag" rel="tag">#<span>analogcomputer</span></a> <a href="https://schleuss.online/tags/classichacks" class="mention hashtag" rel="tag">#<span>classichacks</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/analog" class="mention hashtag" rel="tag">#<span>analog</span></a> <a href="https://schleuss.online/tags/cursor" class="mention hashtag" rel="tag">#<span>cursor</span></a> <a href="https://schleuss.online/tags/python" class="mention hashtag" rel="tag">#<span>python</span></a> <a href="https://schleuss.online/tags/scale" class="mention hashtag" rel="tag">#<span>scale</span></a> <a href="https://schleuss.online/tags/vinyl" class="mention hashtag" rel="tag">#<span>vinyl</span></a></p>
IT News<p>Hands-On: Smarty Cat is Junior’s First Slide Rule - You may remember that I collect slide rules. If you don’t, it probably doesn’t surprise you. I have ... more: <a href="https://hackaday.com/2020/02/27/hands-on-smarty-cat-is-juniors-first-slide-rule/" target="_blank" rel="nofollow noopener noreferrer" translate="no"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2020/02/27/hands-</span><span class="invisible">on-smarty-cat-is-juniors-first-slide-rule/</span></a> <a href="https://schleuss.online/tags/hackadaycolumns" class="mention hashtag" rel="tag">#<span>hackadaycolumns</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="tag">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/sliderules" class="mention hashtag" rel="tag">#<span>sliderules</span></a> <a href="https://schleuss.online/tags/sliderule" class="mention hashtag" rel="tag">#<span>sliderule</span></a> <a href="https://schleuss.online/tags/smartycat" class="mention hashtag" rel="tag">#<span>smartycat</span></a> <a href="https://schleuss.online/tags/math" class="mention hashtag" rel="tag">#<span>math</span></a></p>
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