Weaving & Math

Did you know that weaving uses math?

Not many people even know how to weave anymore (at least in industrialized countries). We go to the store & buy ready-made clothes. Or, if we're ambitious, or just can't find clothes that fit, or want a special costume for something like Halloween or a Science Fiction convention, we might buy fabric.

Well, this month, I learned tablet weaving. Tablet weaving was used all over the world for thousands of years to make trim, belts, straps, ties, etc. You use some little cards with holes in them, usually 4 holes per card. One piece of thread goes through each hole, so if you have 4 holes, you have 4 piece of thread per card. Then you add cards until it's as wide as you want it. The piece I made used 7 cards and is about 3/8 inch wide. The math comes in how you thread different colors of thread through the holes, and how you turn the cards to make the pattern.

I just learned this, so I just copied the pattern given in the class handout, & don't really know how to explain how to use math to make other patterns, but I know it can be done. A Google image search for "tablet weaving" produces all sorts of fancy patterns.

Some good links to check out:

• All Fiber Arts
  
• AMS Special Session on Mathematics and Mathematics Education in Fiber Arts
  
• Satins and Twills: An Introduction to the Geometry of Fabrics
  
• Algebraic Expressions in Handwoven Textiles
  
• Fashion and Advanced Mathematics Meet at Miyake
  

Lazy & Links

So I said I was going to write more. Yesterday, I worked on the StarHouse Discovery Center and Cote du Ciel websites, & got started writing grants. I should probably spend more time today writing grants, but I don't want to. Part of that is that Walmart requires a non-profit organization to already be on the IRS's published list of 501(c)3 organizations. We're not, yet, but our paperwork is in, & we've heard back from the IRS. Apparently, our application is in review, but one of three things will happen to it: 1] it will be approved, 2] it will be approved with changes, or 3] they will assign someone to work with us to get it to the point that it can be approved. This sounds to me like the IRS wants to approve 501(c)3 applications on a general principal, and understands that most people don't understand the tax code at all. If either of those were not true, then there would be no reason for them to work with us to get our application to the point that it can be approved.

Meanwhile, some cool links:

Women in Wetlands a few months ago posted a book review, about a young woman who loves chemistry, & uses it to solve a mystery.

a friend from the SCA, Ray Zentz got a job offer he couldn't refuse, but too far to commute every day. They didn't have time to find a new home, so they're camping in a yurt in another friend's backyard for the winter! In northern Utah!

another SCA friend is teaching astronomy in high school, but her degree is in biology & chemistry. I sent her to the Open High School Earth Systems course for a text book, and Stellarium, 'cause it's fun & free.