{"id":141,"date":"2010-11-06T19:23:37","date_gmt":"2010-11-06T19:23:37","guid":{"rendered":"http:\/\/www.eis.mdx.ac.uk\/research\/robotics\/"},"modified":"2014-01-12T00:02:09","modified_gmt":"2014-01-12T00:02:09","slug":"si-units","status":"publish","type":"page","link":"https:\/\/blog.soton.ac.uk\/robotics\/projects\/si-units\/","title":{"rendered":"SI Units (Revision) Cards"},"content":{"rendered":"<p><a href=\"http:\/\/upload.wikimedia.org\/wikipedia\/commons\/c\/c8\/SI_base_unit.svg\"><img loading=\"lazy\" decoding=\"async\" alt=\"File:SI base unit.svg\" src=\"http:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/c\/c8\/SI_base_unit.svg\/600px-SI_base_unit.svg.png\" width=\"321\" height=\"407\" \/><\/a><br \/>\nThe study and use of SI Units is fundamental to all subjects within Engineering\u00a0and\u00a0the Physical Sciences. The International System of Units has it&#8217;s origins in the late 17th century, however, it is now recognised worldwide as the standard\u00a0on which all Science and Engineering are based.<\/p>\n<p>This revision tool, developed by members of the Autonomous Systems Lab at\u00a0the University of Southampton, allows the learner to practice the application, use and combination of 52 of the most frequently used SI Units. A useful pocket-sized reference to all seven SI Base Units, 22 Derived Units and 23 Other Units, this product seeks to educate and demystify this complicated and heavily rule-based system. Designed for use by Engineering and Physical Sciences students at all educational levels from School, College to University degree and beyond.<\/p>\n<p>Available from:<\/p>\n<p><a href=\"http:\/\/www.amazon.co.uk\/S-I-Units-revision-Playing-Cards\/dp\/1874289220\">http:\/\/www.amazon.co.uk\/S-I-Units-revision-Playing-Cards\/dp\/1874289220<\/a><\/p>\n<p>Cost: \u00a36.99 each for Edition 2 (January 2014)\u00a0(volume discounts available upon request).<\/p>\n<p>An example of a rarely understood derived unit is the\u00a0<strong>steradian<\/strong> (symbol: <strong>sr<\/strong>). This is\u00a0the SI unit of solid angle. It is used to describe two-dimensional angular spans in three-dimensional space, analogous to the way in which the radian describes angles in a 2D plane. The name is derived from the Greek <em>stereos<\/em> for &#8220;solid&#8221; and the Latin <em>radius<\/em> for &#8220;ray, beam&#8221;.<\/p>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/robotics\/files\/2011\/04\/Steradian1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-482\" alt=\"\" src=\"http:\/\/blog.soton.ac.uk\/robotics\/files\/2011\/04\/Steradian1.jpg\" width=\"220\" height=\"204\" \/><\/a><\/p>\n<p>So you think that you know the International System of\u00a0Units; then try this free online test of only 29 units:<\/p>\n<p><a href=\"http:\/\/www.sporcle.com\/games\/si_units.php\">http:\/\/www.sporcle.com\/games\/si_units.php<\/a><\/p>\n<p>If you score less than 70%, you really should buy a pack of our SI (Revision) cards.<\/p>\n<p><a href=\"http:\/\/blog.soton.ac.uk\/robotics\/files\/2010\/11\/image1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-medium wp-image-1413\" alt=\"image\" src=\"http:\/\/blog.soton.ac.uk\/robotics\/files\/2010\/11\/image1-300x225.jpg\" width=\"300\" height=\"225\" srcset=\"https:\/\/blog.soton.ac.uk\/robotics\/files\/2010\/11\/image1-300x225.jpg 300w, https:\/\/blog.soton.ac.uk\/robotics\/files\/2010\/11\/image1-1024x768.jpg 1024w, https:\/\/blog.soton.ac.uk\/robotics\/files\/2010\/11\/image1.jpg 1632w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The study and use of SI Units is fundamental to all subjects within Engineering\u00a0and\u00a0the Physical Sciences. The International System of Units has it&#8217;s origins in the late 17th century, however, it is now recognised worldwide as the standard\u00a0on which all Science and Engineering are based. This revision tool, developed by members of the Autonomous Systems [&hellip;]<\/p>\n","protected":false},"author":84943,"featured_media":979,"parent":31,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-141","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/pages\/141","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/users\/84943"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/comments?post=141"}],"version-history":[{"count":4,"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/pages\/141\/revisions"}],"predecessor-version":[{"id":1414,"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/pages\/141\/revisions\/1414"}],"up":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/pages\/31"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/media\/979"}],"wp:attachment":[{"href":"https:\/\/blog.soton.ac.uk\/robotics\/wp-json\/wp\/v2\/media?parent=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}