{"id":28,"date":"2005-12-01T09:46:00","date_gmt":"2005-12-01T17:46:00","guid":{"rendered":"http:\/\/www.mccambridge.org\/blog\/2005\/12\/cool-stuff-prince-ruperts-drops\/"},"modified":"2022-09-11T00:40:49","modified_gmt":"2022-09-11T00:40:49","slug":"cool-stuff-prince-ruperts-drops","status":"publish","type":"post","link":"http:\/\/www.mccambridge.org\/blog\/2005\/12\/cool-stuff-prince-ruperts-drops\/","title":{"rendered":"Cool stuff: Prince Rupert&#039;s Drops"},"content":{"rendered":"<p><strong>Prince Rupert&#8217;s Drops<\/strong><\/p>\n<p>Just saw these on <a href=\"http:\/\/www.hackaday.com\">hackaday.com<\/a>.  Very cool little things.  You can read up on <a href=\"http:\/\/en.wikipedia.org\/wiki\/Prince_Rupert%27s_Drops\">Prince Rupert&#8217;s Drops at Wikipedia<\/a>, but the basic idea is this:  Drop molten glass into a cold bucket of water.  A tadpole-shaped piece of glass is formed in a way that produces a huge amount of tension within the glass.  On the big tadpole end, you can hit it with a hammer, and unlike ordinary glass it won&#8217;t break.  (Due to the high tension and the egg-like shape distributing the force.)  However, if you even <em>scratch<\/em> the tiny tadpole tail, the entire thing explodes into tiny little shards, almost instantly.  (The exploding front propagates down the tail toward the head at ~4200 mph = <strong>Mach 5.5<\/strong>)<\/p>\n<p>Even if you didn&#8217;t read the above paragraph and\/or didn&#8217;t care, check out this <a href=\"http:\/\/www.museumofglass.org\/VHS\/video\/rupert_drop_demo_bb.html\">video of Prince Rupert&#8217;s Drops exploding<\/a> from museumofglass.org.  It&#8217;s awesome.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Prince Rupert&#8217;s Drops Just saw these on hackaday.com. Very cool little things. You can read up on Prince Rupert&#8217;s Drops at Wikipedia, but the basic idea is this: Drop molten glass into a cold bucket of water. A tadpole-shaped piece of glass is formed in a way that produces a huge amount of tension within [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/posts\/28"}],"collection":[{"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/comments?post=28"}],"version-history":[{"count":1,"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/posts\/28\/revisions"}],"predecessor-version":[{"id":1867,"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/posts\/28\/revisions\/1867"}],"wp:attachment":[{"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/media?parent=28"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/categories?post=28"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.mccambridge.org\/blog\/wp-json\/wp\/v2\/tags?post=28"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}