| The fascination exerted by interlaced patterns and knotted forms is evident in their use in decorative and symbolic art across the centuries. Knotwork is a distinguishing feature of Celtic art, and the intricate beauty of decorated stonework and illuminated manuscripts such as the Lindisfarne Gospels, the Book of Durrow, and the Book of Kells manifests the technical and creative mastery over knotted forms achieved by Celtic artists before AD 800.
The mathematical theory of knots has a comparatively short history, properly beginning with some remarks of C.F. Gauss and being advanced by Victorian pioneers inspired by Lord Kelvin's vortex theory of atomic structure. Whilst the vortex theory fell by the wayside, knot theory became a flourishing branch of pure mathematics. Recent developments have revealed unexpected connections with the theoretical physics of quantum field theory, reuniting knot theory with physics. One of the aims of this book is to provide the background material so as to make accessible the ideas and discoveries of this challenging and expanding area of mathematical research. |
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 Usability Testing of Medical Devices
To paraphrase a popular saying, usability testing should be done early and often. However, it doesn’t have to be an onerous process. Informative, practical, and engaging, Usability Testing of Medical Devices provides a simple, easy to implement general understanding of usability testing. It offers a general... |  |  Macromedia Contribute 3 in a Snap (Sams Teach Yourself)Whether you're a small business owner wanting to update your website to promote a big sale next month, a student assigned to create a website for a class, or you're curious about web design but you don't have any HTML experience, Macromedia Contribute 3 In a Snap can help. Organized into short, bite-sized tasks, you will quickly be able to... |  |  Blender For Dummies (Computer/Tech)So you’ve heard about Blender, the free 3D animation software. You really want to know more about the features of Blender, where to get it, and how to use it. You’re in luck. It’s all in Blender For Dummies, including Blender software on the bonus DVD.
Because there’s a lot to learn about Blender, you’ll... |
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