1.0 link Rainbow Dash Network http://rainbowdash.net/ Cerulean Lulamoon-Spark (ceruleansparkold) http://rainbowdash.net/ceruleansparkold http://rainbowdash.net/notice/2080915 @<span class="vcard"><a href="http://rainbowdash.net/user/7875" class="url" title="Omni"><span class="fn nickname">omni</span></a></span> I had just heard the term &quot;Mexican hat array&quot; in book I'd read, so I was interested to learn what one actually was.