Thu, 23 May 2013 06:19:27 GMT Ponoko - Items by Weird-Sky tagged with Mathematics http://www.ponoko.com/showroom/Weird-Sky/3307 Callipers for finding the Golden Ratio. The Golden Mean – one of the primary magic numbers. Its name is Phi Its number is 1.61803399 Its symbol is Φ The Golden Mean is the link between the nautilis shell, the sunflower and the pentagram. Phi is the root-note of the harmony that holds the universe together, The root-note of the harmony that connects the iPhone to the Acropolis. More information here http://www.goldenmeancalipers.com/ -- These calipers are not mass-produced. They’re lovingly hand-crafted by me… in my garage hammering the little brass rivets into place with a proper hammer, just like the proper Ancient Greeks used to do, but without the garage. -- There are three sizes, they are 1) small : 114 mm (measures 25 mm to 190 mm) : $35.00 2) medium : 180 mm (measures 35 mm to 320 mm) : $65.00 3) huge : 40 mm (measures 80 mm to 750 mm) : $75.00 I can make other sizes if requested. <br></br><img alt="Ponoko3_showroom_image" src="http://static3.ponoko.com/design_images/images/13022/3d46f3d5-0d18-36ad-963c-d02420805b65/ponoko3_showroom_image.jpg?1295341823" /> Fri, 05 Oct 2012 03:49:12 GMT http://www.ponoko.com/showroom/Weird-Sky/3307?time=Mon+Aug+17+07%3A59%3A04+UTC+2009 Weird-Sky