{"id":2369,"date":"2017-03-26T09:15:43","date_gmt":"2017-03-26T00:15:43","guid":{"rendered":"http:\/\/balldiamondball.com\/blog\/?p=2369"},"modified":"2017-07-06T17:46:19","modified_gmt":"2017-07-06T08:46:19","slug":"c-ship","status":"publish","type":"post","link":"https:\/\/balldiamondball.com\/blog\/c-ship\/","title":{"rendered":"C-ship"},"content":{"rendered":"<p><a href=\"http:\/\/www.fourmilab.ch\/cship\/cship.html\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-2370\" src=\"http:\/\/balldiamondball.com\/blog\/wp-content\/uploads\/2017\/03\/logoship.png\" alt=\"C-ship: Exploring special relativity\" width=\"84\" height=\"84\" \/><\/a>Here&#8217;s what I&#8217;ve been doing the last week. \u00a0I&#8217;m not going to call this a Saturday night science post lest I find myself on a treadmill like at the other place, and besides it&#8217;s Sunday morning and before long the silly clock changing thing will kick in. \u00a0I&#8217;d hoped to wrap this up hours ago, but little did I expect that a bizarre confluence of IPv6, Gmail anti-spam filters, and obscure sendmail.cf configuration parameters would devour my entire day.<\/p>\n<p>In 1995, I posted <a href=\"http:\/\/www.fourmilab.ch\/cship\/\"><em>C-ship<\/em><\/a>, in which I used a\u00a0notional ship able to accelerate at a constant rate of up to 100 metres per second per second and ray-traced images and animations to provide an <em>intuitive<\/em> sense of how one perceives spacetime when travelling at a substantial fraction of the speed of light. \u00a0My inspiration in this was the <a href=\"https:\/\/en.wikipedia.org\/wiki\/Mr_Tompkins\">Mr Tompkins<\/a> stories by <a href=\"https:\/\/en.wikipedia.org\/wiki\/George_Gamow\">George Gamow<\/a>, in which physical constants such as the speed of light and Planck&#8217;s constant were set to values near the human experience to illustrate how physics behaves at the scale of the very large and very small. \u00a0I&#8217;d hoped to use virtual reality to provide a visceral sense of such a world, but that was far beyond the <a href=\"http:\/\/www.fourmilab.ch\/autofile\/e5\/?chapter=chapter2_69\">technological capability of the time<\/a> (and apparently the imagination of developers today), so I settled on a more static presentation.<\/p>\n<p>The update brings all documents up to contemporary Web standards (XHTML\/HTML5) and embeds animations and audio which previously required separate applications or plug-ins directly within Web pages. \u00a0Typography uses Unicode characters, and equations have been re-rendered to be more readable.<\/p>\n<p>Enjoy your voyages on <a href=\"http:\/\/www.fourmilab.ch\/cship\/\">C-ship<\/a>.<\/p>\n<div class=\"pld-like-dislike-wrap pld-template-1\">\r\n    <div class=\"pld-like-wrap  pld-common-wrap\">\r\n    <a href=\"https:\/\/balldiamondball.com\/blog\/wp-login.php\" class=\"pld-like-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"2369\" data-trigger-type=\"like\" data-restriction=\"user\" data-already-liked=\"0\">\r\n                        <i class=\"fas fa-thumbs-up\"><\/i>\r\n                <\/a>\r\n    <span class=\"pld-like-count-wrap pld-count-wrap\">    <\/span>\r\n<\/div><div class=\"pld-dislike-wrap  pld-common-wrap\">\r\n    <a href=\"https:\/\/balldiamondball.com\/blog\/wp-login.php\" class=\"pld-dislike-trigger pld-like-dislike-trigger  \" title=\"\" data-post-id=\"2369\" data-trigger-type=\"dislike\" data-restriction=\"user\" data-already-liked=\"0\">\r\n                        <i class=\"fas fa-thumbs-down\"><\/i>\r\n                <\/a>\r\n    <span class=\"pld-dislike-count-wrap pld-count-wrap\"><\/span>\r\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p><a href=\"http:\/\/www.fourmilab.ch\/cship\/cship.html\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-2370\" src=\"http:\/\/balldiamondball.com\/blog\/wp-content\/uploads\/2017\/03\/logoship.png\" alt=\"C-ship: Exploring special relativity\" width=\"84\" height=\"84\" \/><\/a>Here&#8217;s what I&#8217;ve been doing the last week. \u00a0I&#8217;m not going to call this a Saturday night science post lest I find myself on a treadmill like at the other place, and besides it&#8217;s Sunday morning and before long the silly clock changing thing will kick in. \u00a0I&#8217;d hoped to wrap this up hours ago, but little did I expect that a bizarre confluence of IPv6, Gmail anti-spam filters, and obscure sendmail.cf configuration parameters would devour my entire day.<\/p>\n<p>In 1995, I posted <a href=\"http:\/\/www.fourmilab.ch\/cship\/\"><em>C-ship<\/em><\/a>, in which I used a\u00a0notional ship able to accelerate at a constant rate of up to 100 metres per second per second and ray-traced images and animations to provide &#8230; <a href=\"https:\/\/balldiamondball.com\/blog\/c-ship\/\"> Continue reading <span class=\"meta-nav\">&rarr; <\/span><\/a><\/p>\n","protected":false},"author":5813,"featured_media":2370,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[111,112,109,110],"class_list":["post-2369","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geek","tag-c-ship","tag-fourmilab","tag-physics","tag-science"],"_links":{"self":[{"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/posts\/2369","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/users\/5813"}],"replies":[{"embeddable":true,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/comments?post=2369"}],"version-history":[{"count":1,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/posts\/2369\/revisions"}],"predecessor-version":[{"id":2371,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/posts\/2369\/revisions\/2371"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/media\/2370"}],"wp:attachment":[{"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/media?parent=2369"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/categories?post=2369"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/balldiamondball.com\/blog\/wp-json\/wp\/v2\/tags?post=2369"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}