{"id":85,"date":"2011-08-01T13:00:03","date_gmt":"2011-08-01T03:00:03","guid":{"rendered":"http:\/\/www.bolderrow.com\/?p=85"},"modified":"2014-09-04T16:22:16","modified_gmt":"2014-09-04T06:22:16","slug":"interesting-engineering-facts","status":"publish","type":"post","link":"https:\/\/www.bolderrow.com\/?p=85","title":{"rendered":"Interesting Engineering Facts"},"content":{"rendered":"<p>Some very interesting engineering facts.<\/p>\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\" align=\"left\">\n<tbody>\n<tr>\n<td valign=\"top\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"100%\">\n<table border=\"0\" width=\"100%\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"100%\"><strong>Railroad tracks.<\/strong><strong>The\u00a0 US standard railroad gauge<\/strong><strong>\u00a0<\/strong><strong>(distance between the rails) is 4 feet,<\/strong><strong>\u00a0<\/strong><strong>8.5 inches. That&#8217;s<\/strong><strong>\u00a0<\/strong><strong>an exceedingly odd number.<\/strong><strong>\u00a0<\/strong><br \/>\n<strong>Why was that gauge used? Because that&#8217;s the way they built them in England , and English expatriates<\/strong><strong>\u00a0<\/strong><strong>designed the <\/strong><strong>US railroads.<\/strong><strong>Why did the English build them like that? Because the first rail lines were built by the same people who built the <\/strong><strong>pre-railroad tramways, and that&#8217;s the gauge they used.<\/strong><\/p>\n<p><strong>Why did &#8216;they&#8217; use that gauge then?\u00a0 Because the people who built the tramways used the same jigs and tools that <\/strong><strong>they had used for building wagons, which used that wheel spacing.<\/strong><\/p>\n<p><strong>Why did the wagons have that particular odd wheel spacing.<\/strong><\/p>\n<p><strong>Well, if they tried to use any other spacing, the wagon wheels would break on some of the old, long distance roads in<\/strong><strong>England , because that&#8217;s the spacing of the wheel ruts.<\/strong><\/p>\n<p><strong>So who built those old rutted roads?<\/strong><\/p>\n<p><strong>Imperial\u00a0\u00a0 Rome built the first long distance roads in Europe (including\u00a0\u00a0 England ) for their legions.<\/strong><\/p>\n<p><strong>Those roads have been used ever since.\u00a0<\/strong><br \/>\n<strong>And the ruts in the roads? Roman war chariots formed the initial ruts, which everyone else had to match<\/strong><\/p>\n<p><strong>for fear of destroying their wagon wheels.<\/strong><\/p>\n<p><strong>Since the chariots were made for Imperial\u00a0 Rome , they were all alike in the matter of wheel spacing.<\/strong><\/p>\n<p><strong>Therefore, the United States standard railroad gauge of 4 feet, 8.5 inches is derived from the original specifications f<\/strong><strong>or an Imperial Roman war chariot.\u00a0 In other words, bureaucracies live forever.<\/strong><\/p>\n<p><strong>So the next time you are handed a specification\/procedure\/process, and wonder, &#8216;What horse&#8217;s ass came up with this?&#8217;&#8230;. <\/strong><strong>you may be exactly right.<\/strong><\/p>\n<p><strong>Imperial Roman army chariots were made just wide enough to accommodate the rear ends of two war horses. <\/strong><strong>(Two horses&#8217; asses.)<\/strong><\/p>\n<p><strong>Now, the twist to the story:<\/strong><\/p>\n<p><strong>When you see a Space Shuttle sitting on its launch pad, you will notice that there are two big booster rockets <\/strong><strong>attached to the sides of the main fuel tank.<\/strong><\/p>\n<p><strong>These are solid rocket boosters, or SRBs. The SRBs are made by Thiokol at their factory<\/strong><strong>\u00a0<\/strong><strong>in Utah<\/strong>\u00a0.<\/p>\n<p><strong>\u00a0<\/strong><strong>The engineers who designed the SRBs would have preferred to make them a bit larger, <\/strong><strong>but the SRBs had to be shipped by train from the factory to the launch site.<\/strong><\/p>\n<p><strong>The railroad line from the factory happens to run through a tunnel in the mountains, <\/strong><strong>and the SRBs had to fit through that tunnel.<\/strong><\/p>\n<p><strong>The tunnel is slightly wider than the railroad track, and the railroad track, as you now know, <\/strong><strong>is about as wide as two horses&#8217; behinds.<\/strong><\/p>\n<p><strong>So, a major Space Shuttle design feature <\/strong><strong>of what is arguably the world&#8217;s most advanced transportation system was determined over\u00a0<span style=\"text-decoration: underline;\">two thousand years ago <\/span><\/strong><strong>by the width of a horse&#8217;s ass. <\/strong><\/p>\n<p><strong>And you thought being a horse&#8217;s ass wasn&#8217;t important?<\/strong><\/p>\n<p><strong>So, Horse&#8217;s Asses control almost everything&#8230;<\/strong><\/p>\n<p><strong>&#8230;Explains a whole lot of things,<\/strong><\/p>\n<p><strong>doesn&#8217;t it?<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"100%\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Some very interesting engineering facts. Railroad tracks.The\u00a0 US standard railroad gauge\u00a0(distance between the rails) is 4 feet,\u00a08.5 inches. That&#8217;s\u00a0an exceedingly odd number.\u00a0 Why was that gauge used? Because that&#8217;s the way they built them in England , and English expatriates\u00a0designed the US railroads.Why did the English build them like that? Because the first rail lines [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-85","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=\/wp\/v2\/posts\/85","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=85"}],"version-history":[{"count":7,"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=\/wp\/v2\/posts\/85\/revisions"}],"predecessor-version":[{"id":101,"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=\/wp\/v2\/posts\/85\/revisions\/101"}],"wp:attachment":[{"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=85"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=85"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bolderrow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=85"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}