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#sliderules

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cthululemon<p>One of my favorite slide rules is the Charpentier Calculimètre. Something about circular slide rules makes understanding mantissa rollover easier, which helps a lot when I try to teach people. </p><p>This example dates from the 1910s, I believe. </p><p>Anyway, in this image I have the index at 3.14 which, you can see, approximately equals 22/7. </p><p><a href="https://social.cthululemon.com/tags/SlideRules" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SlideRules</span></a></p>
For Pete's Sake<p>Hi, I'm Pete Little. A 53 year old <a href="https://masto.alittleofnothing.co.uk/tags/autistic" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>autistic</span></a> male.&nbsp;&nbsp;I'm a <a href="https://masto.alittleofnothing.co.uk/tags/mathematician" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>mathematician</span></a> by education but a <a href="https://masto.alittleofnothing.co.uk/tags/SoftwareEngineer" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SoftwareEngineer</span></a> by employ. Was born in Scotland but currently live with my wife in London.</p><p>My hobbies are many-fold. I like <a href="https://masto.alittleofnothing.co.uk/tags/Cycling" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Cycling</span></a> and am a keen <a href="https://masto.alittleofnothing.co.uk/tags/eBike" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>eBike</span></a> cyclist.</p><p>I collect <a href="https://masto.alittleofnothing.co.uk/tags/Fossils" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Fossils</span></a> and <a href="https://masto.alittleofnothing.co.uk/tags/Minerals" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Minerals</span></a>, <a href="https://masto.alittleofnothing.co.uk/tags/RubiksCubes" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>RubiksCubes</span></a>, &nbsp;<a href="https://masto.alittleofnothing.co.uk/tags/SlideRules" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SlideRules</span></a>, <a href="https://masto.alittleofnothing.co.uk/tags/Cravats" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Cravats</span></a> and I also collect <a href="https://masto.alittleofnothing.co.uk/tags/DVD" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>DVD</span></a> and <a href="https://masto.alittleofnothing.co.uk/tags/BluRay" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>BluRay</span></a> movies. (3000+ last count)</p><p>Might be easier to say I collect collections :D</p><p>I'm interested in <a href="https://masto.alittleofnothing.co.uk/tags/HomeAutomation" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HomeAutomation</span></a> and <a href="https://masto.alittleofnothing.co.uk/tags/HomeAssistant" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>HomeAssistant</span></a></p>
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