Showing posts with label S.T.E.M. and art. Show all posts
Showing posts with label S.T.E.M. and art. Show all posts

Monday, December 14, 2020

Unfinished Business: Early Winter Q & A, 2020

Mountain landscape photo by J.J.
"Late Afternoon, Early Winter" by J.J.
Hi, Annake.  We are high school students who want to ask some questions about some of your recent posts. Please don't show our names or school because your articles are not on our reading list, but our lame on-line classes are pretty much just reading the textbooks and doing the tests that come with them. We had a teacher last spring who suggested we ought to read your Earth Day blog post and gave us the link. She also wanted us to read the one for Arbor Day. Then we looked at the 'All About Color' ones and liked those too. They are all different, but the last one was the best one yet, and we wanted to know more about it. And we want to know if you are going to do another Time Travel one? Or what is next for the Color ones?

Women in S.T.E.M. logo (public domain image)
Okay, then: Welcome, Mystery Guests! We are indeed planning more posts in the 'All About Color' series, and I have a few things to say about them today.  But first of all I want to shout out congratulations to Ishana Kumar. She won a top science prize for her project on the perception of imaginary colors. She is a 12-year-old 7th grade student who had to work within the restrictions of the corona virus guidelines. Her project may lead to a better understanding of some eye diseases, as well as  of cognitive processing. You Go, Girl!

Camo pattern

We have two new 'All About Color' features in the works, one for late Winter and one for Spring.  I'm not sure yet which one will go up first, but the topics are: "The Psychology of Color" and "The Physiology of Color". The first one will deal with subjects like imaginary colors, camouflage, how color is used to sell things, how colors affect our moods, etc.

Bee on dandelion (photo by J.J.)
The second will discuss not only how human eyes work and the problems that may afflict human vision, but will also deal with some of the remarkable ways animals see things that humans cannot.

Now, as to the Time Travel article, it was designed to get you interested in what was going on at a pivotal time in Earth's history. I have never been convinced that all of the many species that appeared during the so-called Cambrian 'Explosion' just appeared out of thin air with no links to a developmental past. Remember the sediments collected from the lowest part of our hypothetical dive? When we examined those in our respective labs back in our own time, what do you think we would have found?  Remember that they were sheltered by the sediments from the increasing supply of oxygen on the surface. Many such organisms are alive and thriving in oxygen-free or oxygen-poor environments such as deep sea deposits, caves, and deep mines today.

Black Smoker in Atlantic (public domain image. NOAA)
Black Smoker in Atlantic
Now I am going to give you a "magic word": EDIACARAN. And here is a link to follow (These Bizarre Ancient Species Are Rewriting Animal Evolution) into a field that is growing rapidly with findings from many parts of the globe. Read the side entries. Learn as much as you can and make your own decisions about the 'Explosion'.  Keep track of the dates given and I think you will see why I set the time for our 'expedition' when I did. Have fun. Look hard at everything. Scientists were once "stumped" by the strange appearance of one of the Ediacaran specimens until someone else walked into the room and pointed out that they were looking at it upside-down. (Look up Hallucigenia: the "Which end is up?" controversy has been solved by new, better fossils and the electron microscope.)

Thought bubble graphic

Ask questions. Never stop asking questions. Probably the most important word in any language is "Why?" As any harried parent will tell you, it is usually the first question children ask, and they employ it ruthlessly. The second most important question is probably "How?".  But very high on my personal list of important questions is the one that begins,"But what if...". That one will take you places!

As for whether there will be another tine travel adventure, J.D. and I will think about it. Personally, I would like to look at the relative speed at which birds and mammals repopulated the planet after the disappearance of the dinosaurs. In the meantime, stay safe and well — and do your homework!

Geometric needlepoint border sample 1
You have shown several new border patterns lately as outlines or graphs.  I work better if I can see things done in finished needlepoint. Is it possible to show some of the patterns done that way?


Geometric needlepoint border sample 2
Of course it is. I will have to look at some back issues. so it may be a while before I get caught up, but I will put several on this post. Some of the ones from "Something Fishy" were not meant for needlepoint or cross-stitch, but rather for outline stitching or crewel.  But I do samples of new counted cross-stitch, tent stitch, or solid upright Gobelin stitch before I file them, so those should be fairly close to the surface. Choose your own color schemes. You may want to do figures like flowers, hearts, and strawberries in natural or conventional colors, or you may want to experiment. If you are following a geometric design, then the light and dark values should stay as close to the original design as possible, regardless of the color scheme. Happy stitching!

Geometric needlepoint border sample 3
We had a lot of fun with the Thanksgiving games. Thanks for those. How did you think of them? Are you going to do more of them in future blogs?

You are very welcome. I'm so glad you liked them. I always used games in all my years of teaching, so I'm accustomed to making them. They are more fun than tests (and can tell a teacher just as much about the progress of the class). We played a lot of forms of Jeopardy, too. Look for New Year's games on December 26th, for sure, and there may be something for Valentine's Day, but that hasn't been decided yet. I'm thinking about something for Easter, too, especially if travel and gathering restrictions haven't been lifted by then.
Hearts needlepoint border sample
I loved the mask! Did you make it? Have you made any others?

Closeup of beads & concho on mask
I did not make it. It was made for me as a gift and meant to be worn on my chest as a neckerchief, but it was easy for me to adapt it into a mask. I am working on a couple of designs of my own. I had a whole box of broken necklaces, "orphan" earrings, beads and other items that could easily adorn a bandanna. Unlike the original design, which I hope to wear as a neckerchief again someday, the new masks will have decorations that can easily be removed so that the mask can be laundered. Look for pictures sometime in mid-January.

 
 
Hey, I liked the fish stories. Got another one?

We were fishing one of the many mesa lakes early one summer morning. I like peace, quiet, and space when I fish. All three were somewhat lacking where we were and I was about to suggest we move. Some guy with an over-sized, loud, power boat was zooming in and out between boats bragging about his boat and his catch, although he only showed a medium-sized rainbow trout.  He swung around ahead of us and my line went slack. I was pretty sure he had cut it, which did not endear him to me.

Crayfish (public domain photo)
I was reeling in my line. When it broke the surface, I saw I had a passenger — a crayfish nearly a foot long. Just then Mr. Obnoxious pulled up alongside, too close for comfort.

"What are you fishing for, Honey?", he yelled at me.

"Oh, no," I called back in my sweetest voice. "I'm not fishing. I'm teaching this crawdad to water-ski!" I held up the crustacean in question.

With a facial expression somewhere between affront and alarm, Mr. O. gunned his motor and roared away to annoy people in another part of the lake. Once he stopped laughing, my husband started the trolling motor and moved off in the opposite direction to find a more peaceful spot. Then I gently released the crayfish, thanked it, and dropped it back into the lake.

I wish you fair weather and good fishing.


Strawberries needlepoint border sample


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Sunday, June 28, 2020

The ‘Escences' of Light: All About Color, Part IV

peacock feather earrings
Peacock feather earrings
Yes, I know that "essences" is spelled with three S's, but that is not what we are featuring today. I want to discuss the subjects of iridescence, pearlescence, opalescence, luminescence, phosphorescence and fluorescence. We touched on these topics when we discussed structural color and observed iridescence in a peacock feather and a butterfly's wings (August 14, 2019 post). Now I want to treat iridescence and its related phenomena in greater detail.

soap bubble (public domain photo)
Soap bubble
Iridescence is an optical phenomenon that appears  when certain substances seem to change colors as the viewer changes the angle of observation, or the angle of light changes. You have seen it on the surface of a soap bubble. feathers, insect wings, oil slicks on wet pavement and the insides of some seashells. Often the effect is the result of structural color caused by microstructures in the material that interfere with the direction of light rays. The word iridescent comes from the Greek word iris, which means "rainbow" and the Latin word escent which means "having a tendency toward". (Learn more about the origin of the word in our April 27, 2020 post.)

Oil slick on wet asphalt (public domain photo)
Oil slick on wet asphalt
The thickness of the layers of the iridescent materials influences the pattern of light interference. Thin films like oil slick or soap bubbles are most likely to produce temporary iridescence. In an oil slick, the different colors indicate different thicknesses in the layers of oil.




Hummingbird iridescent throat and back feathers
Hummingbird photos by J.J.
More permanent effects are caused by many layers of structure like those in a hummingbird's feathers, the scales of a butterfly's wing, or the layers of nacre in an abalone shell. The range of colors in natural iridescence may be narrow, shifting between only 2 or 3 colors, or as wide as the whole visible spectrum. The rainbow colors require quite elaborate arrangements of micro-structure.  A few minerals show this kind of iridescence. One of the most startling places to find the effect is from the iridescent scales on the abdomens of tiny male peacock spiders from Australia. This is easily mistaken as a threat display, but it is really part of an elaborate courtship routine. And he had better do it right or the female will kill and eat him! (You can see his performance on You Tube or BBC).

Iridescence on CD
We can create artificial iridescence with diffraction, which in this case refers to the spreading of light around an obstacle or forcing it through a small opening, creating an interference effect.  We see the affects of this in DVDs, CD's, smart phones with iridescent back panels, and glitter nail polish.



Mother-of-pearl inside shell
Mother-of-pearl inside shell
Pearlescence
 is an effect related to iridescence where some or all of the reflected light is white and iridescent effects produce rainbow colors. The term pearlescence is used to describe the situation when a structure within a surface causes light to be reflected back, but some or all of the light that is reflected back is white light. However, pearls can be many colors besides white — pink, blue, green, gold, grey or rainbow-colored. Artificial pearlescence can be made with certain pigments and paints. This effect is largely used in the automobile industry.  Pearlescent paints and finishes can be found in craft paints and nail polishes, as well.

Fresh water pearl jewelry
Fresh water pearl jewelry
Natural pearls occur in the soft bodies, or mantles, of mollusks like oysters and some species of freshwater mussels. The pearl is composed of calcium carbonate in response to the presence of an irritating intruder in the shell. Most people believe that the irritant is a grain of sand, but it is far more likely to be a parasite. A sort of allergic reaction by the mollusk causes a pearl sac to close around the intruder.  Tiny crystals are deposited around the sac in layer after layer. This process goes on as long as the mollusk is alive. Perfect pearls are round, but pearls come in many shapes, depending upon the shape of the irritant inside. Irregularly-shaped pearls are called baroque pearls. Cultured pearls are "grown" at pearl farms where small particles are inserted into the mollusks' bodies. In this way the size and shape of the resultant pearl can be controlled.

Opal and silver fish pin
Opalescence
 is an optical phenomenon displayed by the gemstone opal. This is due to the layering, spacing, and size of the many crystals of silicon dioxide, in the form of microscopic spheres, and the included water and/or air in their microscopic structures. When the sizing and spacing of the spheres is small, refracted blue-green colors are prevalent, sometimes with flecks of other colors.  This is precious opal. You can see it in the opal set into the head of this silver fish pin. The dark spot in the "eye" is a bit of stone around which the opal formed.




Precious (top) & common white opals
Precious (top) & common white opals
When the sizing and spacing of the molecules is somewhat larger, the colors yellow, orange, and red appear. This kind of gem is called fire opal. When the sizing and spacing is larger still, a milky, hazy sheen of light appears within the stone. This material is called common opal.  Exposure to heat can cause the water in the stone to break down and the fire and glow disappears. The stone is said to 'die'. During the Bubonic Plague, this effect was seen when the wearers fell prey to the extremely high fevers that the disease caused. Because people at that time did not understand diseases very well, the opals were sometimes blamed for the wearers' deaths. It became a forbidden gem and didn't regain its popularity until the 20th Century.

Honduran black opal
Honduran black opal
Opal can be found as inclusions in many different minerals. It can form in wood which later becomes petrified. It has also been found in fossil shell and bone. It is a fairly soft material, which is often "sandwiched" between a layer of dark stone, to reflect more of its brilliance, and a hard, clear quartz to protect it from wear.  It needs to be protected from heat, and opal rings or bracelets should never be worn while washing dishes.



Phosphorescent pigment before & after 'charging'
Phosphorescent pigment before & after 'charging'
Phosphorescence
 occurs when the phosphorescent material is "charged" by exposure to light — usually ultraviolet light. Then the energy that has built up is stored for a period of time and released slowly.  Some minerals, including some diamonds, are naturally phosphorescent. Oddly, phosphorus, for which the phenomenon was named, is not one of them. These materials can sometimes be activated by body heat or by being vigorously rubbed. When the energy is released immediately after exposure to light, the phenomenon is called fluorescence. The study of phenomena like this led to the discovery of radioactivity in 1896.  There are practical applications, such as fluorescent lights and items like clocks that glow in the dark.

Scorpion fluoresces under UV light
Scorpion fluoresces under UV light

Incandescent steel
Incandescent steel
Luminescence
, sometimes called cold-body radiation, is a spontaneous emission of light from a substance that is not caused by heat.  It can be caused by electrical energy, chemical reaction, sub-atomic motion or stress on a crystal. This distinguishes it from incandescence, which is light being emitted by a substance that is being heated. For example, a fireplace poker left in the fire too long might begin to glow.

Luminescence has some interesting practical uses. Some examples are: lasers, light-emitting diodes (LEDs), dosimeters to detect harmful radiation, luminol to detect the presence of blood at a crime scene, and photoluminescence used in microbial diagnosis.  That last use is playing a part in the current fight against corona virus and other causes of deadly epidemics.

30 second exposure of fireflies (public domain photo)
Fireflies (30 second exposure)
Bioluminescence
 is, to me, the most fascinating ‘escence’ of them all. It is light emitted from living organisms.  One summer night long ago I was riding around on dark rural roads with some college friends. Suddenly we saw an area ahead of us that was glowing and pulsing. We stopped, climbed over a fence, crossed a field and reached a tree-shaded place by a creek. On the ground were hundreds of small bodies flashing yellow, green, and a reddish light, more or less in unison. None of us had ever seen glowworms, but we realized that was what they were. Glowworms are the females of some species of fireflies (which we called "lightning bugs"). Their heads and eyes mature to adulthood, but their bodies remain in the larval state — unable to fly. We knelt down to watch. After a few minutes, we became aware of smaller pulsing lights overhead. The males had arrived. They flew intricate back-and-forth patterns before dropping down to mate with their choices of females. As mating progressed, the females went dark and the males flew away. They may have been an unnamed species, because they rarely flash red and the males are supposed to attract the females — not the other way around.  We walked in awed silence back to the car, aware that we had experienced something rare and wonderful.

Bioluminescent comb jellies (public domain photo)
Bioluminescent comb jellies
You may have recently seen film of surfers riding glowing waves at night along the California coast. The light was caused by algae in the water, disturbed by the rolling waves. It is a charming sight, but not a welcome one for scientists. The algae use up much of the oxygen in the water. If they stay around very long, this causes harm to the beds of giant kelp in the water, along with all the marine life that lives in their shelter. This can also be harmful to migrating marine animals like whales and dolphins.


Bioluminescent sea creatures (public domain photos)
Bioluminescent sea creatures
Most bioluminescent animals live in the sea. Exceptions are the fireflies, some earthworms, and a few cave species that use luminescence to attract prey. Click beetles use flashes of light when in flight to attract mates, but they also flock together on the ground and appear to use the lights as a warning signal there. Some fungi are luminous, perhaps to attract animals that will carry some of the fungal spores away with them.  Bacteria may be luminescent. Many organisms produce their own light, but others harbor luminous bacteria in various parts of their bodies.

In the ocean, particularly at great depths, many — perhaps most — animals have some luminous features. As we develop better and better instruments to send back information on sea-floor dwellers, we are seeing some wild and wonderful luminous species. Animals use luminosity for a number of reasons. An obvious one is to identify mates of the correct species and attract them.  A sudden flash of light to confuse or startle a predator comes in handy.  Being able to mimic another animal — particularly one that is poisonous or just tastes bad — is a distinct advantage.

Angler fish (public domain illustration)
Angler fish (public domain illustration)
A marine animal that spends a lot of time close to the surface, like a firefly squid, may have luminous organs on the underside of its body that break up its outline and allow it to appear to be part of the surface waves. The angler fish dangles a luminous lure above and in front of its huge mouth to collect unwary prey. His stomach stretches so much that he can eat animals that are nearly as big as he is!  Some sea creatures use clouds of luminescent bacteria the same way the octopus uses ink — to provide a "smokescreen" while making a quick getaway. Animals that regularly eat luminous prey usually have opaque black stomachs. After all, it doesn't pay to advertise your last meal to a predator who might make you its next one!!

I hope you have enjoyed our excursion into the ‘escences’.






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Saturday, February 29, 2020

Roots, Leaves, & S.T.E.M.: Our Anniversary Issue, 2020

colored pencil sketch of a tree
Pencil sketch by Annake
Welcome to our 168th post, and the beginning of this blog’s 8th year. While it does not seem that long since I talked Annake into doing this blog, things have really changed in the world, even our remote little piece of it. And we’ve changed, too, with different wants, needs, and capabilities than we had when we began.

So, we have decided to emphasize three areas in the coming year in this blog: first, art forms and techniques which have fallen out of fashion and could be forgotten; second, using art to support causes that are important to us, like promoting women in art and preserving endangered wildlife; and finally, presenting you — our readers — with more tools and techniques which can be used in a variety of forms and styles, so you can better make the art you want and make it uniquely yours.

Below are some of the things we've been thinking about.
J.D., Annake's Garden Gnome

Collage of bull paintings through history
Bulls: 1) Lascaux cave, 15,000 BCE  2) Egyptian tomb, 1000 BCE  3) Goya lithograph, 1825

Roots

J.D.: Roots are the beginnings of things, the first attempts to satisfy the most basic needs. When a seed germinates, the first thing to emerge is the root, seeking immediate sustenance and a hold on its place in its environment. Humans,  have much the same basic survival needs, like food, protection from the elements, safety from predators. But just beyond these immediate needs, there seems to be a strong need to express one's self. In even the mot primitive societies, people use whatever is at hand to decorate themselves, their possessions, and their immediate surroundings. These decorations are very individualistic — a way to say, "This is me!"

ANNAKE: I'm sometimes asked why I discuss the history of an art form in my articles, or why I trace the changes in it over a long period of years.  I simply believe that knowing something about the origins of a genre will help you understand its processes better.  It certainly does that for me.  I also like to know how it has progressed over time and how it adapted to the tastes. economy and customs of different historic periods. That helps me to design activities that relate to the present, whether it be the raw materials or tools that I use,  new techniques, themes that are currently popular or appropriate, or ways to use the principles of the genre in a totally different art form.

Much of the history of these technologies (and, yes, that is exactly what they are) has been lost in time because the materials used were bio-degradable and were only preserved under unusual circumstances, like the tombs of the Egyptian Pharaohs.  But enough survived to make inroads in the mystery, and, after trading became widespread, it is possible to trace the development of certain techniques and even styles.

J.D.: Pigments wash off, flake off, fade in the weather. Feathers, hides, wood — even bone — weather and decay over time. Still, the more we find in archaeological digs, the further back in time we push decorative processes. This is certainly true of the fiber arts, which have been the main focus of this blog. Until just over a century ago, textile fibers were one of the most fragile and transient materials in common use. Specimens of clothing, fabric, and needlework from as recently as 1,000 years ago are very rare, and most of what we know about fiber arts before about 2,000 years ago comes from implements and depictions in other media like painting.

ANNAKE: Embroidery, like other techniques, evolves over time.  It evolved from sewing, which has been around for at least 30,000 years. This was the sewing which made survival in the cold possible.  Also sail-making, which made travel along the ancient rivers like the Tigris, Euphrates, and Nile possible and led to sailing on seas and oceans. Tent-making, which allowed nomadic tribes to venture into and across unknown territories, also contributed. The tent stitch used in needlepoint is a tent-maker's and sail-maker's stitch.  Basket-making and weaving contributed patterns.

For much of recorded history, art forms, including the fiber arts, were limited to possession by churches and other religious institutions, royalty, and a few people who who had become wealthy through banking and trade. Now they are within the reach of the general public. Partly this is due to the proliferation of modern materials. For example, it it is not only possible to embroider with silk, linen, or wool, but also with rayon, nylon, cotton, acrylics, metallics, even bamboo.

collage of arts with mixed technologies
 1) Folk art, traditional materials and methods  2) Traditional needlepoint, high tech design aids  3) Needlepoint, acrylic yarn on plastic canvas (modern materials)


Leaves

J.D.: Leaves are the part of the plant where most of the work takes place. Their most important job is to provide the fuel which lets the plant grow, survive, and reproduce. They take in oxygen to burn for fuel, and get rid of the exhaust fumes. They have different sizes and colors, different shapes, always variations in small details. Leaves are the first place a plant experiments and adjusts itself to get the most out of its environment. Leaves are the first place where changes in the plant's health or challenges from a changing environment appear. They are the first place where extreme or unusual temperature changes, changes in soil chemistry or the amount of light, and attacks by parasites or diseases show up. Plants have evolved methods to counteract environmental crises; these show as changes in the leaves.

ANNAKE: I tend to think of kinds of art as being like the branches and leaves of a tree — some growing out from the same cluster, but differing slightly from each other; others supporting old, traditional pursuits, then suddenly sending out a new and atypical branch or two,

Art has moved further toward abstraction in recent years, going first through a period of minimalism. Today, however, it is trending toward more color, more contrast, the juxtaposition of shapes, and the emphasis on surface textures.  Needle arts and other art forms that we feature lend themselves to these trends. For example, I recently did an article on Assisi work.  In this period of marches and demonstrations, the technique — whether or not it is used in needlework — lends itself greatly to signs and slogans, as well as to more traditional subject matter.

J.D.: If you think of the forms and styles of needle arts that Annake has explored in this blog as leaves, you can often see results of changes in economic and social environments. The rise of the middle class in Europe resulted in needlepoint as a less expensive substitute for woven tapestry. The Muslim conquest of Spain resulted in geometric patterns that became blackwork, which English royalty enthusiastically embraced. Changes in trade flow with East Asia influenced the availability of silk,  popularity of different styles of garments, and the needlework that decorated them. The development of coal tar dyes in the 19th Century and synthetic fibers in the 20th have revolutionized how we approach fiber arts.

ANNAKE: We have learned that hands-on activities are very important in improving learning abilities. Having spent half a century as an educator,  I learned early to introduce creative activities into my curriculum whether I was dealing with kindergarten children or college students, G.I.'s, Seniors, or people needing physical or occupational therapy.  That is a pretty large portion of society. I believe we should encourage creative practices whenever we can.

S.T.E.M. collage
1) Color theory  2) Annake at the computer  3) Re-engineered kitchen cart  4) Designing a six-way needlepoint


S.T.E.M.

J.D.: The stem is the part of a plant that provides the structural integrity which holds the leaves up where they can get the sunlight they need to accomplish their tasks, and that maintains the link between the roots and the leaves. Unlike leaves, stems are seldom disposable: as the cells of the stem age, or even die, they remain incorporated in the growing structure which supports all the other above-ground parts and functions of the plant. You can read the entire life history of a tree in the rings of its trunk.

S.T.E.M. is also a very "in vogue" acronym in the U.S., standing for "Science, Technology, Engineering, and Mathematics"; areas of study Americans feel are essential for young people to be well-versed in to obtain good jobs and to support the massive and complex economy we depend upon for security, comfort, and the continuation of the society we are used to.

"Science" does not require armies of lab-coated nerds in laboratories full of glistening machinery and odd-shaped bottles full of unpronounceable contents. "Science" is what happened when one of our paleolithic ancestors noticed that herds of edible creatures seemed to be at a particular spot when the sun was at a very specific place in the sky, and determined to be hunting with a spear at that spot the next time that happened.

"Technology" is not the latest electronic gadget. It is as simple as learning that, when you strike two particular kinds of rock together in a certain way, one of them will flake off with a very useful, extremely sharp edge.

"Engineering"' does not need to feature pages (or screens) of arcane symbols, numbers, and calculations. It can be as basic as figuring how best to attach that sharp rock you just cut to a stick with some resin so that it will stay attached and you won't cut your fingers with it.

"Mathematics" was what your thousand-times great-grandfather used to figure how many spearheads he needed to flake to replace the ones lost or broken during the last hunt. I' m not going to suggest that what most people think of when they see or hear "S.T.EM." is not important and worthwhile to invest time, effort, and money into its study.  What I do want to say is that S.T.E.M. is a basic set of problem-solving tools, mindsets, disciplines, and points-of-view that people have used to survive and prosper since the beginning of human consciousness.  All those steps in between, from sharpening stones to making smart phones, are a history of how people used these disciplines; and they are still with us, like the  growth rings in the tree trunk.

ANNAKE: And you should be using those disciplines every day, even in something as "old-fashioned" as needlework. You don't need to invent anything. Just learn what's available and choose the best options for what you want to make. Do you need a sharp needle or a blunt one? Long or short? Large eye or small eye? Yarn or floss? Fabric or canvas? Colors? It is as easy as that. The result of your decisions will be something uniquely yours that would have never existed if you hadn't created it. (On the other hand, if you find a way to use existing tools and materials in a novel way..... Congratulations! You have just invented a new technology!)

J.D.: Engineering is often a matter of improvisation, like using a picture frame in place of a large embroidery hoop that you don't have. Or it might be a matter of using a common tool for a purpose it was never intended to fill, but which fits your situation well.  Design a tool that works well for you, but isn't on the market. You're an engineer!

It is almost impossible to avoid math while doing needlework, even if you are only counting threads in fabric or squares in canvas, figuring how much yarn it will take to crochet an afghan, or plotting a graph-paper pattern.

ANNAKE: I would like to challenge all you readers to make something original with your hands. (Hey, J.D., is it okay if I dare them to do it?)

J.D.:
It works for me.

makers collage
What will you make?
















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