Showing posts with label science. Show all posts
Showing posts with label science. Show all posts

Saturday, February 17, 2024

hidden pidgin / the camouflage of messenger pigeons

I should think that there are few things more amazing than the variety of birds known as “homing pigeons” or “messenger pigeons.” They were widely used during both World Wars I and II to deliver messages from the field to various behind-the-lines command posts, which they had been trained to consider as “home.” They have been known to be able to return to home destinations as distant as 1000 miles. In addition to their battlefield role, they were also used as mail carriers (called “pigeon post”) by postal services, and by newspaper reporters to deliver stories from the field to the home office.

To send a message, the information would be recorded on a lightweight paper, which was then rolled up and secured within a tube-like capsule (along with a small pencil) attached to the pigeon’s leg [see photo below]. 

Shown above is a page from the January 1919 issue of The Popular Science Monthly, which features a grocery wagon that has been converted into a “home” for a “pigeon flying corps,” consisting of seventy-two messenger pigeons. 

At the bottom is a dog which apparently has been trained to carry a pigeon (in a special container attached to its back) to the dog’s “master,” a soldier somewhere in the field. That person could then remove the pigeon, write a note, and send it “home” to the landlord of the pigeon hotel. 

A wonderfully curious aspect of this is the coloration of the wagon. Looking closely at the large photograph, it becomes apparent that the wagon has been “camouflaged” with paint so as to continue the pattern of the rock wall and the foilage above and behind it. It was of course essential to prevent ones pigeons from being killed or wounded.

Monday, December 25, 2023

John Brown fifty years ago / remembering a colleague

Painting by John Brown 1972
While sorting through our art collection, I’ve been looking at an acrylic painting dated 1972, purchased from the artist that year or shortly after. His name was John C. Brown (1934-2019), who for a few years in the 1970s was a faculty colleague at the University of Northern Iowa.

I don’t know the title of the painting, if it had one. But no doubt one reason I bought it is because it so strongly pertains to figure-ground blending or background matching, as is so commonly observed in camouflage, both natural and military.

John was originally from Cedar Falls. He majored in landscape architecture at Iowa State University (Ames), but dropped out in favor of studying art. He completed his BA in Art in 1956 at UNI, then worked for a number of years as a graphic designer and illustrator. He made "studio art" on the side, and was awarded various prizes for his innovative paintings.

At some point he joined the faculty as an instructor of painting. I graduated from the Rhode Island School of Design at the end of 1971, and was invited to teach at UNI in the following spring semester, and I think he was on the faculty then. In the years that followed, he and I (and others) were among the teachers in a highly unusual, untested approach to art foundations, called the Visual World Program.

That program had been launched in the fall semester of 1971 by a newly-hired department head from San Francisco, a man named Kenneth Lash, who had been the Head of Humanities at the San Francisco Art Institute. A rather odd aspect of this was that Lash was not a visual artist but a writer—a poet and an essayist, whom I had initially met in the summer of 1968 at the Aspen School of Contemporary Art in Colorado.

Given that the Visual World curriculum was a quasi-subversive departure from standard foundations courses, as detailed in textbooks at the time, it was controversial from the start. Some of the departmental faculty welcomed it, while others were wary, hesitant or confused. The latter complained they were clueless: What was the program all about? What was it supposed to accomplish? How could it be defined? As I recall, when Lash was approached with questions like that, he would typically reply that the program would eventually shape itself, over a year or two, in the process of trying to teach it.

Some of us reached out to other disciplines. We devised activities that stressed creativity (innovation, humor and problem-solving), perceptual psychology, and the interplay of usually disparate fields. We brought in a stage magician to demonstrate sleight of hand; worked with the physics faculty in making holograms; learned from biologists about the use by ethologists of behavioral dummies; explored stereoscopic vision (including random dot stereograms); constructed airborne works of art; recreated some of the Ames Demonstrations, while learning about their historical link to linear perspective; and so on.

There were deliberate efforts to teach as much through physical engagement as through attending lectures. On occasion, oddball contests were arranged, two of which I still remember vididly: the infamous Rube Goldberg Drawing Machine Contest, and the Groucho Marx Look-Alike Contest.

There were also eccentric exhibits, one of which was originated by John Brown. He partitioned off a section of the floor space in the gallery, then set free within that space an impressive selection of battery-powered motion toys, of the sort that, if collided with, they would adjust their course and continue to move. The full effect consisted of random collisions of various things, like non-stop vehicle mishaps—which continued for a couple of days, until at last the batteries died.

In 1975, Ken Lash and I co-authored an article that was published in Leonardo: Journal of the International Society of Arts, Sciences and Technology (published then by Pergamon Press, it was soon after acquired by MIT Press, and continues now as Leonardo). In that article, titled “The ‘Visual World’ Program at the University of Northern Iowa, USA,” we cited one of John Brown’s most memorable classroom assignments. Known as “the Lemon Experiment,” we described it in the article more or less as follows (although with substantial revison):

A class of twenty students is presented with a shopping bag containing fresh lemons. Each student then selects, randomly, any lemon from the bag. They are told: “Take your lemon with you. Look at it, feel it, smell it. Carry it with you wherever you go, even when you go to sleep. Get to know as much as you can about your lemon without marking, cutting or biting it. Then bring it to class with you when we meet again in two days.”

At the next class meeting, all the lemons are returned to the grocery bag, then spread out on a table top. The students are instructed to retrieve their particular lemons. They are inevitably amazed to find that, with little difficulty, they can indeed identify them. They mostly do this using sight. But some of them, even when blindfolded, can find their lemons by touch and smell. They are left with a new understanding of the rich range of attributes that can be observed and recognized in things that may initially look as if they were indistinguishable.

In a subsequent phase, the students are asked to draw maps of their lemons, which might enable someone else to identify their lemon. Or, in a “lemon substitution” phase, they are asked to create visual puns by purposely misplacing lemons in usually mistaken contexts, such as a “lemon dirigible” or a “lemon pencil sharpener.” They are also assigned to produce a “counterfeit lemon” from any mix of materials (sponges, stuffed socks, or whatever) to explore the possible links between vastly different types of things.


Around 1976, I moved on to another university. John Brown stayed on at UNI, but he too eventually left. Looking through old issues of the student newspaper, there is a story from 1975 which reports that his students had constructed a large “floating painting” which they launched on Prexy’s Pond, a pond near the center of campus. Another one, two years later, shows him with one of his classes. They had been asked to design a package in which a raw egg would survive undamaged when the package was dropped from a building.

John Brown with students
John died in 2019. According to his obituary, he had been living in the Florida Keys for forty years. Following his experience with the Visual World, he had married (to Pam Quegg) and moved to Colorado, had toured the West in a Volkswagen van, and had sailed down the Mississippi. Having finally settled in Florida, he made a living—or so I heard—by selling handmade teddy bears on the beach. “He lived mindfully,” the obituary says, “and savored each moment with passion.” And, consistent with my own memory, he will be “fondly remembered for his big smile and booming cheerful voice.”

Tuesday, June 20, 2023

intentional duality for concealment and differentation

Deyan Sudjic, The Language of Things. London: Allen Lane, 2008, pp. 152 and 154—

Camouflage is ostensibly a functional, practical phenomenon, adopted by the armed forces of every country for the purposes of concealment. But over the years it has in fact been transformed into a pattern for differentation. Every national army has its own camouflage pattern, and uses it to tell friend from foe. At the same time that camouflage tries to make its wearers invisible, it is also generating a highly visible signal, intended to identify them to their own side.

patterns in nature as sources of camouflage design

Crazy Lace Agate (Pixabay)
Jean-Philippe Lenclos, as interviewed in Supergraphics: transforming space: graphic design for walls, buildings and spaces. London: Unit Editions, 2010, p. 293—

Q: Your work has alway encompassed strong graphic elements, where does this interest come from?

A: From the start of my studies at the École Boulle, I was fascinated by the graphic elements I found in the urban landscape, such as signs and road markings on the street. The broad stripes used in road markings, for example, are graphical elements that I admired: despite their extreme simplification, I liked their strength of expression. Furthermore, we would go to the aquariums in Paris to draw all sorts of strange fish, which, by their colors and their fabulous “graphism,” made me aware of the extreme freedom of patterns on their bodies. Similarly, the rhythms and forms found on the surfaces of minerals and plants have always inspired artistic creation. | have always observed my surroundings. This brings us also to camouflage used in military hardware. All these observations are at the source of my own research and contribute to a visual mythology that has fed my work.

Bark mimic moth (Pixabay)

 

Thursday, October 13, 2022

David Williams / Dazzle, Disruption and Concealment

Above Cover of the hardbound edition of David L. Williams, DAZZLE, DISRUPTION AND CONCEALMENT: The Science, Psychology and Art of Ship Camouflage. UK: The History Press, 2022. ISBN 978 0 7509 9681 5. <www.thehistorypress.co.uk>

At the beginning of this new, important book on ship camouflage, its author David L. Williams writes that it was not his intention for it to be “overly technical.” And, true to his word, the book is not needlessly detailed. At the same time, it is sufficiently technical that, as of now, it is undoubtedly the finest, most complete description of the development and purpose of Modern-era ship camouflage. This he has accomplished in 170 pages of precisely worded research, supplemented by page after page of well-chosen, high quality images, both photographs and diagrams, most of which are historic, with nearly fifty in full color.

For anyone wanting to understand the science, art, and history of the frequently misrepresented techniques employed in ship camouflage during World Wars I and II—and the reasoning behind them—there is no better, more accurate book source. 

Well-written, attractive, intriguing, it will enlighten innumerable readers in a wide range of disciplines. The result is both cogent—and dazzling. 

•••

Publisher's Notes

Many people are familiar with the term "dazzle design," but what of its origins and objectives as a defensive practice at sea? And was it the only approach to the painted protection of merchant and naval vessels during the two world wars? David L. Williams examines the origins of maritime camouflage, how it was originally influenced by natural concealment as seen in living creatures and plants and was followed by the emergence of two fundamentally opposed schools of thought: reduced visibility and disruption to visual perception.



Dazzle, Disruption & Concealment explores the objectives and design features of each of the various strategies advocated as forms of painted protection by looking at the scientific and artistic principles involved (the behavior of light and the process of vision). It considers their effectiveness as a means of reducing visibility or in disturbing the comprehension of crucial target attributes (ship’s speed, distance and bearing). It also identifies the key individuals engaged in maritime camouflage development as well as the institutions set up to conduct in-depth research into these practices.