http://www.rough-equivalents.com Making Numbers Fun Thu, 13 May 2010 18:54:56 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 http://www.rough-equivalents.com/2008/05/its-the-great-space-coaster-ummm-elevator/ http://www.rough-equivalents.com/2008/05/its-the-great-space-coaster-ummm-elevator/#comments Wed, 14 May 2008 07:15:22 +0000 Greg Bulmash http://www.rough-equivalents.com/?p=62 http://www.rough-equivalents.com/2008/05/its-the-great-space-coaster-ummm-elevator/feed/ 7