The Art and Science of Spirals

by Victor Dorff

Create spectacular spirals by popping a pen into a gear and moving it around a template. The three gears and two templates that come with this fun and innovative kit allow you to generate hundreds of... This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 1435115821
• ISBN13: 9781435115828
• Release Date: September 2011
• Publisher: Sterling Innovation
• Length: 56 Pages
• Weight: 0.30 lbs.