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<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title>Brass Goggles - The Lighter Side of Steampunk - Latest Comments in Tatjana van Vark &amp;#8211; The Harmonium</title><link>http://brassgoggles.disqus.com/</link><description>None</description><atom:link href="https://brassgoggles.disqus.com/tatjana_van_vark_8211_the_harmonium/latest.rss" rel="self"></atom:link><language>en</language><lastBuildDate>Sun, 19 Oct 2008 19:39:47 -0000</lastBuildDate><item><title>Re: Tatjana van Vark &amp;#8211; The Harmonium</title><link>http://brassgoggles.co.uk/blog/200611/tatjana-van-vark-the-harmonium#comment-16455767</link><description>&lt;p&gt;If you enjoy what Tatjana van Vark has built, it is a good idea to return to her Web site regularly.  Along the lines of the Harmonium, she completed a Henrici harmonic analyzer/Hele-Shaw planimeter.  Original machines like this exist in the magnificent collection of the London Science Museum (they have, for example, a William Thompson (Lord Kelvin) mechanical tidal computer).&lt;/p&gt;&lt;p&gt;A link to the Henrici analyzer (the spheres have pickoffs at 90deg to generate sine and cosine components).  There are a couple of these in the London museum:&lt;/p&gt;&lt;p&gt;&lt;a href="http://www.tatjavanvark.nl/hha/" rel="nofollow noopener" target="_blank" title="http://www.tatjavanvark.nl/hha/"&gt;http://www.tatjavanvark.nl/...&lt;/a&gt;&lt;/p&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">Steven Horii</dc:creator><pubDate>Sun, 19 Oct 2008 19:39:47 -0000</pubDate></item><item><title>Re: Tatjana van Vark &amp;#8211; The Harmonium</title><link>http://brassgoggles.co.uk/blog/200611/tatjana-van-vark-the-harmonium#comment-16455766</link><description>&lt;p&gt;I apologise deeply if that is the case - I couldn't find a single pronoun on the site to give me a clue either way, and the photograph didn't help me too much either.  I am also unfamiliar with the gender of name Tatjana, but I'll take your word for it.  My greatest apologies for any insult to Ms. van Vark.&lt;/p&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">Tinkergirl</dc:creator><pubDate>Thu, 30 Nov 2006 18:07:50 -0000</pubDate></item><item><title>Re: Tatjana van Vark &amp;#8211; The Harmonium</title><link>http://brassgoggles.co.uk/blog/200611/tatjana-van-vark-the-harmonium#comment-16455765</link><description>&lt;p&gt;FYI, I believe that Tatjana van Vark is a "she" and not a "he".&lt;/p&gt;</description><dc:creator xmlns:dc="http://purl.org/dc/elements/1.1/">Thee Reverend Obskure</dc:creator><pubDate>Thu, 30 Nov 2006 09:32:37 -0000</pubDate></item></channel></rss>