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Fibonacci and the Golden Ratio

A few blog posts ago, when I talked about the Golden Ratio, (1 to 1.618 or .618 to 1) there were several questions about how the golden ratio relates to the Fibonacci number sequence.

Leonardo Fibonacci was an Italian mathematician (c. 1170-1250) who devised a number sequence where the relationship of one number to the next or previous one provided perfect proportions. Mathematicians and artisans have been using this number sequence ever since. Some quilters use these numbers to plan proportion for their designs.

Da Vinci - the strips and the interior as well as the borders follow the Golden Ratio proportions
Da Vinci – the strips and the interior as well as the borders follow the Golden Ratio proportions

Fibonacci’s number sequence goes like this:

0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, etc.

Can you see how the numbers are determined? Here’s how the sequence works. Start by adding our first two numbers: 0+1=1. Go to the second and third numbers, 1+1=2, then 1+2=3 and so on. Each successive number is the sum of the previous two numbers.  You can select any number in the sequence. It is always the sum of the previous two numbers.  For example 21 is obtained by adding 8 and 13.

But in actual fact, this is virtually the same as the Golden Ratio.  As the numbers get higher the relationship between two adjacent ones approximates the golden ratio.  In fact from the 10th number on, you will get a value of almost 1.618 or .618 every time!

The rectangles and spirals shown here, illustrate exactly how the Golden Ratio relates to the Fibonacci sequence of numbers.

fibonacci golden ratio comparison both

Fibonacci Spiral:
Fibonacci begins with two squares, (1,1,) another is added the size of the width of the two (2) and another is added the width of the 1 and 2 (3). As more squares are added the ratio of the last two comes closer each time to the Golden Proportion (1.618 or .618). Put quarter circles in each of the squares to get the Fibonacci Spiral.

Golden Spiral:
The Golden Spiral begins with a square and a rectangle is added whose width is .618 of the first square. Another square is added that is the width of the first square and rectangle (1.618) This proportion continues so that all the relationships are either .618 or 1.618. Once again the spiral is achieved when quarter circles are drawn in each of the squares.

Comparison of the two spirals:
An overlay of the two spirals shows that at the beginning they do not match up but as Fibonacci’s numbers grow the two spirals are virtually the same. The Golden Gauge Calipers show that the spiral is in perfect Golden Ratio proportions, 1 to 1.618!

fibonacci golden ratio comparison1

All of this fascinates me. And I discovered that you can do the same type of number sequence starting with a different number. For example, we can call this one “Jinny’s Sequence”.

3, 3, 6, 9, 15, 24, 39, 63, 102, 165, etc.

Once again, by the time you get to the 10th number, and divide the 10th by the 9th you get very close to the Golden Ratio….1.6176

It seems to come out this way no matter which number you start with. So you may be asking yourself, do quilters really use this? My quilt, DaVinci was something of an ode to the proportion with the strip widths determined by this mathematical ratio.  I am a huge fan of the work of Caryl Bryer Fallert, who has created an entire Fibonacci series of quilts. Why don’t you give it a try?

If you find all this fascinating check out the previous blog posts on the Golden Ratio.

Fibonacci12_246k

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A Peek at Spring Quilt Market

International Quilt Market Pittsburgh 2014
International Quilt Market Pittsburgh 2014

If you are in the quilt business, you know to save a few days each May for the Spring Quilt Market. This industry trade show gives me the opportunity to meet shop owners and show them my new fabrics and quilt designs.  As a shop owner myself, I’m able to meet the vendors with whom I do business, to discover new products to carry in the Studio, to see old friends and make new ones.

Before market begins is something called “Schoolhouse” where manufacturers, publishers and designers like me get to present our latest products. Shop owners can hear first-hand about the merchandise they will be selling from the people who created them. I spoke about my Palette Pixie Strips and their accompanying quilts, my new calipers and, most exciting, my next fabric collection, Bedfordshire.

market schoolhouse
Upcoming Collection for 2014 – Bedfordshire

Once Market begins, retailers have the opportunity to visit hundreds of booths with every kind of product which could possibly be of interest to quilters. I shopped for interesting patterns and new notions to carry in the Studio and online. Much of my time, though, is spent in the RJR booth meeting shop owners and learning about their customers’ interests.

marketrjr2
How do you like the quilt in the middle? You get a sneak peek at the quilt I designed for my Bedfordshire collection.

What I probably enjoy most are the wonderful people I get to meet, those whose products I sell (and use!) and other designers.

market people photo
Top left: Audrey Brendel of Pin Peddlers
Top right: Jenny Doan of The Missouri Star Quilt Company
Lower left: Kathy Thompson of Quilters Dream
Lower right: Eleanor Burns

Of course, one of my favorite things to do is looking at all the quilts. Even though I have been designing fabric for many years, I still get a thrill when I come across quilts in other booths which have my fabrics in them. Here are two I spotted. Didn’t these quilters do a wonderful job?

quilts from market
Gayle Ropp of Backroom Quilter, Twelve Days of Baltimore by Pearl Pereira – quilted by Karen Marchetti

Inspiring.  That’s the word I would use to sum up Market. The room was filled with a creative spirit. Handwork seems to be celebrating a resurgence. It was exciting to see this interest in a skill you and I have loved for years.

Also, I was so encouraged to see the number of young people there who have entered the business presenting their designs and products. They give the industry a sense of vitality and reminded that quilting should be FUN. Yes, market is always inspiring and I’ve brought back some new products and ideas I can’t wait to share with you in the coming months.

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Quilter’s Design Board

design board blocksHow many of you have never played around with our Design Board? Did you know that there are 223 free patterns in three different sizes (6, 10 and 12 inches) and that a new pattern is added each month?

The blocks are grouped by how they are drafted such as 4-patch, 5-patch, 8-pointed star, etc. First, choose a block. You can print out templates for three different block sizes along with a template guide. Then the blocks can be put into a quilt and borders can be changed. There is a yardage calculator that gives the style numbers of the fabrics used in the block and also will determine how much fabric you need based on how many and what size blocks you want to use. It will even give you an estimate of the cost and put your fabrics directly into your shopping cart.

You can view the design in color or by the line drawing.  You can also change the border selection.
You can view the design in color or by the line drawing. You can also change the border selection.

 

This months’ block is Golden Tile. First and foremost, the block gets its name because it contains the Golden Proportions as was explained in a recent blog post. If the Golden Gauge Calipers are opened so that the smaller space fits on the shorter segment of the design, the larger opening fits on the longer segment.

calipers on Golden Tile 2 The design board is limited and is not meant to take the place of your graphics program but serves as a jumping off point. There are some wonderful software programs available which provide you amazing design possibilities. For blocks such as Golden Tile which are directional, you do not get the chance in the design board to see some of the other possible layout variations. If you have a graphics program that allows you to tile, rotate and flip blocks, experiment with different layouts. Here are some variations.

All blocks are oriented the same way.
All blocks are oriented the same way.
Four blocks are pinwheeled and that unit repeats.
Four blocks are pinwheeled and that unit repeats.
In any four block unit, opposite blocks are reversed.
In any four block unit, opposite blocks are reversed.

I hope you take the chance to play around with our Quilter’s Design Board and don’t forget to send us pictures of the quilts you make from it.

P.S. Golden Ratio by accident or design?

Dana, our staffer who did the layout for the blog sent it to me for approval. As soon as I saw her layout, I couldn’t help myself. I had to get out the calipers. So often when we are doing design or layout work, we select the proportions that are most pleasing to us and so many times it seems to fit the proportions of the golden ratio!

golden ratio by accident or design

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Make Way For Goslings

Luke & Gus on a rainy day
Luke & Gus on a rainy day with me in my office

Well, we almost had a disaster at the Beyers Monday morning. We have a pond on our property and every morning when I let out Gus and Luke (our two labs), we walk around the pond together. As we were coming along the dam, two adult geese suddenly flew from the sky, dive-bombed the dogs, then landed in the pond. Seconds later, another pair streaked up the dam and flew into the pond, all of them honking furiously. The dogs, of course, thought this great fun and went in after them.

Then, out of the corner of my eye,  I caught sight of a group of five precious little goslings on the slope of the dam. I knew if the dogs saw them the goslings would be completely vulnerable.  I yelled at Gus and Luke that it was time to eat and started running to the house. That got their attention and they jumped from the pond to follow me. (Well, they are labs, you know, and when you mention food…)

A few minutes later when I went to get the newspaper, I met my neighbor, Kim, who was carrying a camera with a huge lens. She said she was on her way to photograph some baby foxes she had seen. (Is my neighborhood starting to sound like that old TV show, “Wild Kingdom”?) I told her of the near miss with the goslings and invited her to come take a look. We could check to see if all the geese were okay.

goslings

When we arrived back at the pond, there were the goslings swimming along with their parents. Kim got some great photos and when I saw them, I couldn’t help thinking about the blog post two weeks ago which explained how to get colors out of a photograph. I couldn’t resist so here they are.

gosling colors
Colors drawn from gosling photo in Photoshop

The colors immediately reminded me of the version of Crayon Box that is made with the “tropical” set of Palette Pixie Strips. The only thing missing is the blue sky which was there but just didn’t make the photo.

crayon box_edited-1

I suppose I just can’t help myself from seeing color palettes, fabric designs and quilt possibilities all around me. I hope you are letting your world inspire you too.

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The Magical Golden Ratio

It’s been said that the golden ratio (also called the golden proportion, golden mean or Phi) is the perfect proportion. The golden ratio certainly seems to have magical properties. It occurs in nature, in the human body and in animals, in ancient art and architecture, even in many of our quilt designs. Let’s do a little test. Pick out the illustration you find the most pleasing in each row.

I have given this test many times over the past decade and usually 75% will pick A, B, and B. If you picked these, you picked the shapes which have the Golden Ratio. So what is the golden ratio? OK, here comes some math. (Warning! Your eyes may be in danger of glazing over and your mind may wander. Never fear: it is only two sentences long.) It is the division of a line segment where the ratio is 1 to 1.618, one being the shorter length and 1.618 the longer one. It can also be the ratio of .618 to 1 where .618 is the shorter segment and 1 is the larger.

Most spirals found in nature fit the proportions of the golden ratio. 

You will find that this ratio has been used throughout history. Some examples include the Greek Parthenon, the Great Pyramid at Giza, the paintings of Leonardo DaVinci. However, a truly fascinating aspect of this magical ratio is that it occurs so often in nature. For example, in a beehive there are fewer male bees than female bees. The ratio of males to females is the golden ratio! A pinecone has two sets of spirals, one with less spirals than the other…..the relationship between them is again the golden ratio. Look at the photos above of the shell and Romanesco broccoli as another example. The golden ratio is even evident throughout the human body, in the measurement from the top of the head to the chin and from the chin to the navel and from the navel to the floor. Measurements from the elbow to the wrist and wrist to the tip of the middle finger also fall into the golden proportion. If you are like me, you don’t like carrying a calculator around all the time and doing math, but you might be curious as to the proportions of various objects. Because of this I developed the Golden Gauge Calipers. This is a handy tool that eliminates the math and lets you see the golden proportions in objects. As the calipers are opened the shorter segment in relation to the longer one is the golden ratio and vice versa. 2. calipers open and closed When the calipers are opened so that the narrow space is the size of the width of oval A you will see that the wider portion of the calipers is the height. The same is true with triangle B. If you open the calipers to the narrow portion across the base of the triangle, the height will be the space between the wider portion of the calipers.

3. calipers on oval
Oval A

With the calipers on the Mariner’s compass B notice that the width of the smaller center circle is in “golden proportion” to the distance from the edge of that circle to the edge of the larger circle. calipers on compass Many patchwork designs contain divisions that are either very close to or exactly the golden ratio. Are designs with golden proportions more pleasing to the eye?  Take a look at Duck and Ducklings and Whirling Five Patch, shown here. It is apparent that the designs have the same basic pattern. The difference is that one is drafted on a 5 x 5 grid and the other on a 14 x 14 grid. Which one is most appealing to you? I personally find Duck and Ducklings a little clunky and like the fact that Whirling Five Patch contains divisions that are not all the same. The Golden Gauge Calipers placed on the design shows that the width of the center division to the adjacent one almost fits golden ratio proportions.

two blocks side by side
Duck & Ducklings and Whirling Five Patch

The Whirling Five Patch with calipersUnknowingly, quilters when planning widths for borders automatically choose this proportion because it “feels” right. In one of the upcoming blogs we will take a look at borders and how to determine a pleasing size.