Torus

Week 19 = Mathematical Knitting
Day 3 =  May 9, 2014

Torus

From Wikipedia, the free encyclopedia

   

     Not to be confused with Taurus (disambiguation). This article is about the surface and mathematical concept of a torus. For other uses, see Torus (disambiguation).



A Torus

     In geometry, a torus (pl. tori) is a surface of revolution generated by revolving a circle in three-dimensional space about an axis coplanar with the circle. If the axis of revolution does not touch the circle, the surface has a ring shape and is called a ring torus or simply torus if the ring shape is implicit.

A torus is the product of two circles, in this case the red circle is swept around axis defining the pink circle. R is the radius of the pink circle, r is the radius of the red one.



     Now by looking at the above examples what could we knit with a "doughnut" shaped item?

• Bracelet
• Cowl
• Doughnut
• Game piece
Headband
Paperweight
Pillow
Pin cushion
Token
Wreath

     Cool websites with information on Torus:

• This lady Ann Mayo is an Ant Ecologist = http://onsnetwork.org/mayonotebook/2014/02/04/of-what-use-is-a-torus/
• Sarah Marie Belcastro is a Mathematician that I talked about yesterday = http://gallery.bridgesmathart.org/exhibitions/2014-joint-mathematics-meetings/smbelcas
• This woman made a Torus bracelet out of 24 gauge sterling silver = http://wrapturewirejewellery.on.ca/blog/2009/05/yoj09-21-viking-knit-torus/

     Here are several images of Tori that I found on AOL:

         

Knitting question of the day

What would you use a knit Torus for?

Knitting Doughnuts,

Victoria