{"id":1072,"date":"2003-09-25T09:50:26","date_gmt":"2003-09-25T17:50:26","guid":{"rendered":"http:\/\/www.ogre.nu\/wp\/?p=1072"},"modified":"2006-09-27T16:42:11","modified_gmt":"2006-09-28T00:42:11","slug":"throw-a-pebble","status":"publish","type":"post","link":"https:\/\/bendwavy.org\/wp\/?p=1072","title":{"rendered":"throw a pebble"},"content":{"rendered":"<p>I have long taken delight in how the Net lets me rub electrons informally with scholars such as <a href=\"http:\/\/www-gap.dcs.st-and.ac.uk\/~history\/Mathematicians\/Conway.html\">John Conway<\/a> and <a href=\"http:\/\/www.cogs.susx.ac.uk\/users\/larryt\/\">Larry Trask<\/a>.<\/p>\n<p>On September 12, I wrote to Eric Weisstein of <a href=\"http:\/\/mathworld.wolfram.com\/\">MathWorld<\/a>:<\/p>\n<blockquote><p>\n If the <a href=\"http:\/\/mathworld.wolfram.com\/TetrahedralGroup.html\">tetrahedral rotation group<\/a> is isomorphic to A4, as is easily shown, why are they <a href=\"http:\/\/mathworld.wolfram.com\/FiniteGroup.html\">listed<\/a> as distinct groups of order 12?\n <\/p><\/blockquote>\n<p> It appears that my question triggered a major rewrite of the latter page.  Wow.  (The answer to my question is that there are <a href=\"http:\/\/mathworld.wolfram.com\/FiniteGroupT.html\">two unrelated groups called T<\/a>, both of order 12.)<\/p>\n<p><strong>2006<\/strong>: <a href=\"http:\/\/www.languagehat.com\/archives\/001239.php\">Trask died in 2004<\/a>, alas.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I have long taken delight in how the Net lets me rub electrons informally with scholars such as John Conway and Larry Trask. On September 12, I wrote to Eric Weisstein of MathWorld: If the tetrahedral rotation group is isomorphic &hellip; <a href=\"https:\/\/bendwavy.org\/wp\/?p=1072\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,19],"tags":[],"class_list":["post-1072","post","type-post","status-publish","format-standard","hentry","category-mathematics","category-mememe"],"_links":{"self":[{"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1072","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1072"}],"version-history":[{"count":0,"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=\/wp\/v2\/posts\/1072\/revisions"}],"wp:attachment":[{"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1072"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1072"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bendwavy.org\/wp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1072"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}