{"id":6014,"date":"2012-02-03T14:42:58","date_gmt":"2012-02-03T14:42:58","guid":{"rendered":"http:\/\/scienceblogs.com\/principles\/2012\/02\/03\/course-report-a-brief-history-2\/"},"modified":"2012-02-03T14:42:58","modified_gmt":"2012-02-03T14:42:58","slug":"course-report-a-brief-history-2","status":"publish","type":"post","link":"http:\/\/chadorzel.com\/principles\/2012\/02\/03\/course-report-a-brief-history-2\/","title":{"rendered":"Course Report: A Brief History of Timekeeping 03"},"content":{"rendered":"<p>It&#8217;s been a little while since I wrote up what I&#8217;ve been doing in my &#8220;Brief History of Timekeeping&#8221; class, because I was out of town, and then catching up from being out of town. Some of this material has already appeared here, though, so I can hopefully catch up a lot of stuff in one post.<\/p>\n<p>The material that will be most interesting to random readers of the blog is the &#8220;How to&#8221; section, from a couple of weeks ago, which were the lecture form of the <a href=\"http:\/\/scienceblogs.com\/principles\/2012\/01\/how_to_read_a_scientific_paper.php\">How to Read a Scientific Paper<\/a> and <a href=\"http:\/\/scienceblogs.com\/principles\/2012\/01\/how_to_present_scientific_data.php\">How to Present Scientific Data<\/a> posts here. The <a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-31a71ce81ca6390dfeea9b8ae0017752-011612Notes.pdf\">paper-reading<\/a> class was on Monday and the <a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-6a5f407dd731640297d2fe4becbb6ddf-012012Notes.pdf\">data-presentation<\/a> class on Friday, with a <a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-ab3de0b83df814ccd3f18471fa7b4321-011812Notes.pdf\">class going through a particular paper<\/a> on <a href=\"http:\/\/iopscience.iop.org\/0143-0807\/17\/3\/001\">The mechanics of the sandglass<\/a> sandwiched in between. This also served as the explanation of the working of sand timers, one of our historical timekeeping technologies.<\/p>\n<p>The next week was shortened because I was out of town for the weekend, and introduced mechanical clocks. I started off with this video clip from <cite>Connections<\/cite>, which provides a very nice illustration of early mechanical clocks:<\/p>\n<p><iframe loading=\"lazy\" width=\"420\" height=\"315\" src=\"http:\/\/www.youtube.com\/embed\/kx8YpJdMgUc\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p>Also, you could land an airplane on the lapels of that jacket. As I told the students, I&#8217;m just barely old enough to remember the brief moment when that didn&#8217;t look ridiculous.<.p><\/p>\n<p><!--more--><\/p>\n<p>That was a pretty minimal lecture, not worth posting the slides from, because I had them spend about half of the class measuring the period of a pendulum under different conditions. They measured the time required to complete some number of oscillations as a function of length, mass, and amplitude, and I collected the data from them. On that Friday, I went through a quick lecture on the physics of the pendulum and a couple of different types of escapements for pendulum clocks (<a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-e9204e1c45e69e4fd85b021fd702709b-012712Notes.pdf\">PDF Slides for the lecture<\/a>). Also in that class, I took their data from Wednesday, and showed how to plot it and verify that it fit the theoretical predictions.<\/p>\n<p>This week was all about Dava Sobel&#8217;s <cite>Longitude<\/cite>, and the making of seaworthy chronometers. I said half-jokingly that the week followed a sort of a course through Union&#8217;s curriculum: Monday was on <a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-83264d8dc60d532188b65d3c3ca908bd-013012Notes.pdf\">the science of navigation<\/a>, using the <a href=\"http:\/\/scienceblogs.com\/principles\/2012\/02\/thursday_eratosthenes_blogging.php\">experimental results presented here<\/a>; Wednesday was about <a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-91fa1f9ac1efd668a0701b802207a843-020112Notes.pdf\">the engineering of clocks<\/a>, specifically John Harrison&#8217;s innovations for his marine clocks; and today was the humanities side of things, presenting the story of <a href=\"http:\/\/scienceblogs.com\/principles\/wp-content\/blogs.dir\/467\/files\/2012\/04\/i-d5befb939595bd5913d810af9c095303-020312Notes.pdf\">Harrison&#8217;s attempts to get paid<\/a>. Those last slides are really sketchy because I spent most of the class having them provide details of the Harrisons&#8217; grievances against the Board of Longitude, as related by Sobel. I then provided a bit of the other side of the story, from the Board of Longitude blog: (Rehabilitating Nevil Maskelyne, <a href=\"http:\/\/www.rmg.co.uk\/blogs\/longitude\/?p=18\">Part One: Reassessing the accusations<\/a>, <a href=\"http:\/\/www.rmg.co.uk\/blogs\/longitude\/?p=21\">Part Two: Why lunar distance?<\/a>, <a href=\"http:\/\/www.rmg.co.uk\/blogs\/longitude\/?p=20\">Part Three: Cultural differences<\/a>, <a href=\"http:\/\/www.rmg.co.uk\/blogs\/longitude\/?p=22\">Part Four: The Harrisons&#8217; accusations, and conclusions<\/a><\/p>\n<p>) and this <a href=\"http:\/\/docs.law.gwu.edu\/facweb\/jsiegel\/publications\/Longitude.pdf\">law review article (PDF)<\/a> looking at the case in a more balanced way than Sobel&#8217;s book.<\/p>\n<p>I&#8217;ve been saying repeatedly that this class is about learning how to make arguments, and so introduced the additional material by asking them if they could find holes in Sobel&#8217;s argument. They did a pretty good job of picking up on places where she glosses over inconvenient details, so I think it was a useful class.<\/p>\n<p>And that&#8217;s where things stand. Next week, we move into modern physics and the book <a href=\"http:\/\/www.amazon.com\/Einsteins-Clocks-Poincares-Maps-Empires\/dp\/0393326047\/\"><cite>Einstein&#8217;s Clocks, Poincar&eacute;&#8217;s Maps<\/cite><\/a>. I&#8217;m a little uneasy about this book, because it&#8217;s a bit on the long side, but I&#8217;m going to fill a class or two on the basics of relativity, anyway, so they should have time to read it.<\/p>\n<p>Next week is also when they need to pick topics for their final papers\/ projects, so I&#8217;ll be spending a lot of time meeting with individual students to talk about what they want to research. Which will be time-consuming (roughly five hours of meetings outside of class), but is usually fairly rewarding, so we&#8217;ll see how that goes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>It&#8217;s been a little while since I wrote up what I&#8217;ve been doing in my &#8220;Brief History of Timekeeping&#8221; class, because I was out of town, and then catching up from being out of town. Some of this material has already appeared here, though, so I can hopefully catch up a lot of stuff in&hellip; <a class=\"more-link\" href=\"http:\/\/chadorzel.com\/principles\/2012\/02\/03\/course-report-a-brief-history-2\/\">Continue reading <span class=\"screen-reader-text\">Course Report: A Brief History of Timekeeping 03<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"1","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[134,19,80,7,11,667],"tags":[],"class_list":["post-6014","post","type-post","status-publish","format-standard","hentry","category-course_reports","category-experiment","category-history_of_science","category-physics","category-science","category-time","entry"],"_links":{"self":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/6014","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/comments?post=6014"}],"version-history":[{"count":0,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/posts\/6014\/revisions"}],"wp:attachment":[{"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/media?parent=6014"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/categories?post=6014"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/chadorzel.com\/principles\/wp-json\/wp\/v2\/tags?post=6014"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}