Urban Planning & the Design of Communities
When history moves on
Such an enormous machine
The flash of a neon light
In restless dreams I walked alone
Narrow streets of cobblestone
Beneath the halo of a streetlamp
I turned my collar to the cold and damp
When my eyes were stabbed by the flash of a neon light
That split the night
And touched the sound of silenceMost cities were mostly built by improvisation
In Architecture Without Architects, Bernard Rudofsky documented the ways in which most cities were mostly built by improvisation, following no consistent formal design. Building was added to building, street to street, their forms adapting to different site conditions in the process of extension.
Rudofsky thought that this hidden order is how most settlements of poor people develop and that the work of improvising street order attaches people to their communities, whereas 'renewal' projects, which may provide a cleaner street, pretty houses, and large shops, give the inhabitants no way to mark their presence on the space.
The Help-Yourself City
Astoria Scum River Bridge. Photo by Jason Eppink.
There are lots of actions that skirt the boundary between “formal” and “informal” urbanism. In the last decade, there’s been a rise in tactical urbanism and guerrilla urbanism, where regular people make interventions in their communities. This ranges from hastily painted bike lanes, to do-it-yourself park benches in under-served communities.
The linear city
The linear city was an urban plan for an elongated urban formation. The city would consist of a series of functionally specialized parallel sectors.
As the city expanded, additional sectors would be added to the end of each band, so that the city would become ever longer, without growing wider.
The question of gentrification
The question of gentrification is made complex by the fact that the urban qualities it produces—lively street life, profuse commerce, preservation and upgrading of old buildings—are highly desirable, the substrate of urbanity. The problem with gentrification is with its particulars and with its effects.
Gentrification suppresses reciprocity by its narrowed scripting of formal and social behavior, by turning neighborhoods into Disneylands or Colonial Williamsburgs, where residents become cast members and the rituals of everyday life become spectacle or food for consumption.
Tactical urbanism
Tactical urbanism includes low-cost, temporary changes to the built environment, usually in cities, intended to improve local neighborhoods and city gathering places. Tactical urbanism is also commonly referred to as guerrilla urbanism, pop-up urbanism, city repair, or D.I.Y. urbanism.
The Street Plans Collaborative defines "tactical urbanism" as an approach to urban change that features the following five characteristics:
- A deliberate, phased approach to instigating change;
- The offering of local solutions for local planning challenges;
- Short-term commitment and realistic expectations;
- Low-risks, with a possibly high reward; and
- The development of social capital between citizens and the building of organizational capacity between public-private institutions, non-profits, and their constituents.
Doing community
There is a Japanese catchphrase, community suru, literally "making" or "doing" community. I will never forget the queasy feeling that came over me when I first heard that term, phrased as if community were a kind of event.
Hold an event, bring people together, get people who might otherwise never meet to interact. It's a wonderful thought. I have nothing against events per se. However, if they are not spontaneous and voluntary, they will not last. That is my objection to the keep-it-lively concept of community. The perception of community as event stems, I think, from a yearning for the festivals and rituals that once flourished in rural communities in Japan. But those events occurred precisely because a community existed, not the other way around.
highdensityandovercrowding
They hated both equally, in any case, and coupled them like ham and eggs, so that to this day housers and planners pop out the phrase as if it were one word, “highdensityandovercrowding.”
Such plans were deemed efficient
The terrain of cities was subdivided along the lines of distinct and discrete patterns of use, with very little opportunity for mixing (separation and concentration of functions). After all, the home environment should be just that…while places of work should be aggregated and serviced with their appropriate supporting functions.
Such plans were deemed efficient.
A World Where Things Only Almost Meet
Recall that great line from Umberto Eco’s novel The Name of the Rose
How beautiful the world would be if there were a procedure for moving through labyrinths.
Only, here, it’s some lonely postal worker—or a geography Ph.D. driven mad by student debt—out mapping the frayed edges of the world, wearily noting every new dead-end and cul-de-sac in a gridded notebook, diagramming loops, sketching labyrinths and mazes, driving empty streets all day on a quest for something undefinable, some answer to why the world’s patterns have gone so wrong. A self-diverging world, where things only almost meet.
Like the lines of a hand
The city, however, does not tell its past, but contains it like the lines of a hand.
NIMBY, BANANA, NOPE
Waste-disposal facilities of all kinds—landfills, incinerators, even transfer stations—are sure bets for generating the NIMBY response: not in my backyard. In its most cynical form, NIMBY is the attitude of citizens who acknowledge the need for a facility, somewhere, but who oppose a plan for building it simply because the selected site is too close to their own property. But opposition to landfills and many other kinds of development goes well beyond cynical NIMBY. Another catch phrase for this phenomenon is BANANA: build absolutely nothing anywhere near anybody. Or else it's NOPE: not on planet earth.
In every skyscraper
In every skyscraper there is someone going mad.
Putting the streets to use
Tad Friend writes, if you build “nine hundred miles of sinuous highway and twenty-one thousand miles of tangled surface streets” in one city alone, then you’re going to find at least a few people who want to put those streets to use. This suggests that every city blooms with the kinds of crime most appropriate to its form.
All the things we want to do
This is precisely where “burglary” becomes a myth, a symbol, a metaphor: it stands in for all the things people really want to do with the built environment, what they really want to do to sidestep the obstacles of their lives.
The City of Light
Streetlights were one of many new patrol tools implemented by Louis XIV’s lieutenant general of police, Gabriel Nicolas de la Reynie. De la Reynie’s plan ordered that lanterns be hung over the streets every sixty feet—with the unintended side effect that Paris soon gained its popular moniker, the City of Light. The world’s most romantic city takes its nickname from a police operation.
Designed to be ruins
I don't want to talk here about the grand designs of the past – the sort of thing one finds in majestic cities, in palaces and temples; the sorts of layouts that brought a friend of mine to sum up his first impression of Washington D.C. by saying, "The place seems to be designed to be ruins."
Holding together a civilization
It is only in the present age that it has been asserted that 'architecture is not an art' or 'should not be an art': and that strenuous efforts are made to made a distinction between design and art. And nowadays we build cities of such a quality that no one likes living in them, everyone who can do so gets a motor car to escape from them. Because of the multitude of motor cars, escape is now denied us, the country is destroyed, and the cities become still less tolerable to live in.
All that is the consequence of contempt for art. Art is not a matter of giving people a little pleasure in their time off. It is in the long run a matter of holding together a civilization.
Deliberate acts
I do not know what one should call the landscape of a long cultivated countryside, or the enchanting pattern of lights which shows at night time in a modern city seen from overhead. Are these not works of art? It is scarcely justifiable to say that these things have taken shape by chance. Each part of them has been made as it is by what seemed a deliberate act, and it need not necessarily be assumed to be a matter of chance that the results of many acts of many men over a considerably period of time should harmonize together aesthetically.
Walls and membranes
All living things contain two sites of resistance. These are cell walls and cell membranes. The cell wall is more purely exclusionary – a boundary; the membrane permits more fluid and solid exchange – a border.
Most pervasive in the modern city is the inert boundary established by highway traffic, cutting off parts of the city from each other. Working with resistance means, in urbanism, converting boundaries into borders.
Fabric
And finally, the things which seem like elements dissolve, and leave a fabric of relationships behind, which is the stuff that actually repeats itself, and gives the structure to a building or a town.
Warmed by the afternoon sun
Textbooks on water-system engineering state that supply mains are generally installed on the north side of the street in the Northern Hemisphere and on the south side in the Southern Hemisphere, so that the sun will warm them. In both hemispheres they are supposed to be on the east side of north-south streets, on the premise that the afternoon sun is warmer than the morning sun.
Trompe l'oeil fantasies
In residential neighborhoods some sewage-pumping stations are trompe l'oeil fantasies, dressed up to look like the split-level or colonial houses that surround them. If you look closely, it's not hard to spot these disguised pumphouses: the heavy-duty power connections, the big ventilating fans, and the diesel generator in the backyard are all tip-offs. Furthermore, the windows are often fakes, with sash and shutters adorning a blank wall.
Roads to nowhere
Among real-estate developers, straight lines and right angles went out of fashion sometime in the middle of the twentieth century. If you look at a town or a residential neighborhood laid out since then, you are more likely to find sinuous, serpentine roads—whether or not the topography offers any excuse for such curves. Many of these roads go nowhere: they are loops that bring you back to where you started, or they are cul-de-sacs. Making it easy to find your way through the network of streets is obviously not a high priority. This is an interesting development in urban geography: having redesigned the city to accommodate the automobile, we now search for ways to discourage people from driving on the streets.
Dead cities
If you can understand a city, then that city is dead.
Bridges as walls
The biographer of Robert Moses, Robert A. Caro, refers to the bridges and underpasses of the famed New York State parkways. These bridges and underpasses are quite low, intentionally specified by Moses to allow only private cars to pass. All those who traveled by bus because they were poor or black or both were barred from the use and enjoyment of the parkland and its "public amenities" by the technical design of the bridges. Even at the time of Robert Moses, a political statement of the form "We don't want them blacks in our parks" would have been unacceptable in New York State. But a technological expression of the same prejudice appeared to be all right. Of course, to the public the intent of the design became evident only after it was executed, and then the bridges were there.
NYLA
"See, what I've always liked about Los Angeles is that it's one of the least restrictive towns in the world. You can pretty much live any way you want to here. And part of that is because the place has no tradition and no history in that sense. It doesn't have any image of itself, which is exactly its loss and gain. That's why it's such a great place to do art and to build your ideas about culture. In New York, it's like an echo chamber: its overwhelming sense of itself, of its past and its present and its mission, becomes utterly restricting."
A system for living
Unlike the traditional neighborhood model, which evolved organically as a response to human needs, suburban sprawl is an idealized artificial system. It is not without a certain beauty: it is rational, consistent, and comprehensive. Its performance is largely predictable. It is an outgrowth of modern problem solving: a system for living. Unfortunately, this system is already showing itself to be unsustainable.
Globally, locally, regionally
Think globally, act locally, but plan regionally.
The Timeless Way of Building
A Book by Christopher Alexander- Mind of no mind
- The quality without a name
- An objective matter
- Bitterness
- The most precious thing we ever have
A Pattern Language
- Its place in the web of nature
- 9. Scattered Work
- 21. Four-Story Limit
- 51. Green Streets
- 53. Main Gateways
20 Minutes in Manhattan
A Book by Michael SorkinThe Death and Life of Great American Cities
A Book by Jane JacobsInfrastructure: A Guide to the Industrial Landscape
A Book by Brian HayesA City Is Not a Tree
An Essay by Christopher Alexander- Strands of life
- Impending destruction
- The right overlap
- The difficulty of designing complexity
- Political chains of influence
The Image of the City
A Book by Kevin Lynch- To become completely lost
- Apparency
- On the edge of something else
- Nothing there, after all
- Paths, edges, districts, nodes, landmarks
The Battle for the Life and Beauty of the Earth
A Book by Christopher Alexander- Two generating systems
- Two types of building production
- System A
- System B
- This has harmed modern society greatly
Two Cycles
A Book by Toshiharu NakaGorgeous artwork by Minori Asada.
Soft City
A Book by David SimInvisible Cities
A Book by Italo CalvinoDesign of Cities
A Book by Edmund BaconThe Nature of Order
A Book by Christopher AlexanderA Burglar's Guide to the City
A Book by Geoff ManaughSuburban Nation
A Book by Andres Duany, Elizabeth Plater-Zyberk & Jeff SpeckHow Much Does Your Building Weigh, Mr. Foster?
A Documentary by Norman FosterThe film traces the rise of one of the world's premier architects, Norman Foster, and his unending quest to improve the quality of life through design.
Against the survival of the prettiest
An Essay by Samuel HughesWhat has emerged here is that although survivorship bias probably does contribute to that to some extent, it is not the main explanation: premodern buildings may on average have been a bit less beautiful than those that have survived, but they still seem to have been ugly far less often than recent buildings are.
The survivorship theory sought to explain the apparent rise of ugliness in terms of a bias in the sample of buildings we are observing. There is another kind of bias theory, which seeks to explain it in terms of a bias in the observer, saying for instance that every generation is disposed to find recent buildings uglier than older ones, and that this is why recent buildings seem so to us. This is a complex and interesting idea, which I am not going to assess on this occasion. Suppose, though, that our eyes are to be trusted. If this is so, strange and eerie truths rise before us: that ugly buildings were once rare, that the ‘uglification of the world’ is real and that it is happening all around us.
Scales of cities, scales of software
An Article by Linus the SephistAmerican cities seem like a product of industrial processes where older European cities seem like a product of human processes. This is because most American cities were built after and alongside the car and the industrial revolution – the design of cities took into account what was easily possible, and that guided the shape and scale of everything.
Software has similar analogues. There are software codebases that feel much more industrially generated than hand written, and they’re usually written in automation-rich environments fitting into frameworks and other orchestrating code.
…But despite the availability of cars, I still much prefer the scale and ambiance of European, human-scale cities, because ultimately cities are places humans must inhabit and understand. In the same way, I still much prefer the scale and ambiance of hand-written codebases even in the presence of heavy programming tooling, because ultimately codebases are places humans must inhabit.
Situationist Theses on Traffic
An Essay by Guy DebordA small store
A Gallery by Kyeoung Me LeeWorking with Brian Eno on design principles for streets
- Think like a gardener, not an architect: design beginnings, not endings
- Unfinished = fertile
- Artists are to cities what worms are to soil.
- A city’s waste should be on public display.
- Make places that are easy for people to change and adapt (wood and plaster, as opposed to steel and concrete.)
- Places which accommodate the very young and the very old are loved by everybody else too.
- Low rent = high life
- Make places for people to look at each other, to show off to each other.
- Shared public space is the crucible of community.
- A really smart city is the one that harnesses the intelligence and creativity of its inhabitants.
Walk Appeal
An Article by Steve MouzonWalk Appeal promises to be a major new tool for understanding and building walkable places, and it explains several things that were heretofore either contradictory or mysterious. It begins with the assertion that the quarter-mile radius (or 5-minute walk,) which has been held up for a century as the distance Americans will walk before driving, is actually a myth.
Both images below are at the same scale, and the yellow dashed line is a quarter-mile radius. On the left is a power center. As we all know, if you're at Best Buy and need to pick something up at Old Navy, there's no way you're walking from one store to another. Instead, you get in your car and drive as close as possible to the Old Navy front door. You'll even wait for a parking space to open up instead of driving to an open space just a few spaces away… not because you're lazy, but because it's such a terrible walking experience.
The image on the right is Rome. The circles are centered on the Piazza del Popolo (North is to the left) and the Green radius goes through the Vittorio Emanuele on the right. People regularly walk that far and then keep on walking without ever thinking of driving.
Drawing pictures of cities
An Article by Noah SmithThis is a famous picture by the artist Imperial Boy (帝国少年), who works in the anime industry. I sometimes claim that the entire genre of solarpunk is simply a riff on this picture.
If it’s not just “trees on buildings”, where does the Imperial Boy picture get its magic? Looking at it carefully and trying to analyze what I like about it, I think that much of it is about architecture, and even more of it is about the use of urban space — about how the structures in the picture shape the kinds of things you’d do if you were there. For example, here are five things I like:
- Open, walkable multi-level retail
- River with low bank
- Walkable streets
- Varied architecture
- Shade
Towers in the Village
An Essay by Alfred TwuSince tall buildings have been around, there have been many ways they’ve fit into cities: towers in downtown, towers in the park, and most recently, towers on a whole-block development. Let’s look at a 4th way, the Tower in the Village.
Unlike the others, the Tower in the Village does not aim to be the center of attention. Instead, the upper floors are hidden behind a low front that fits in with the rest of the block. It faces a village green instead of a busy road.
Why highrise infill? Growing cities have two choices: 1) Redevelop a lot of sites to medium density, or 2) Redevelop a small number of sites to very high density. Highrise infill requires less demolition and can get more homes built faster.
Human-scale digital spaces
An Article by Alexis LloydThe open web is much like emergent, unplanned cities — it happens at the scale of the individual, it allows for unexpected creativity, it gives agency to anyone (well, anyone with sufficient technical knowledge) to shape their own spaces. On the other hand, the platforms that now dominate much of the web experience are more evocative of Moses’s planned cities—they often occur at the scale of the corporation, and have rigid, predictable constraints for how individuals can behave and express themselves.
Semi-detached houses, 2019
A GalleryImages by Wolfgang Fröhling. Linked via kottke.org.
With the beginning of the exit from mining, the colliery apartments were gradually privatized. The houses, in which several families used to live, were divided into two semi-detached houses. At some point the new owners began - each for himself - to design their property. The result was a curious mix of styles in the semi-detached house.
Clues for software design in how we sketch maps of cities
An Article by Matt WebbGiven there’s an explosion in software to accrete and organise knowledge, is the page model really the best approach?
Perhaps the building blocks shouldn’t be pages or blocks, but
neighbourhoods
roads
rooms and doors
landmarks.Or rather, as a knowledge base or wiki develops, it should - just like a real city - encourage its users to gravitate towards these different fundamental elements. A page that starts to function a little bit like a road should transform into a slick navigation element, available on all its linked pages. A page which is functioning like a landmark should start being visible from two hops away.
A Need to Walk
An Essay by Craig ModWalking intrigues the deskbound. We romanticize it, but do we do it justice? Do we walk properly? Can one walk improperly and, if so, what happens when the walk is corrected?
Off the Grid...and Back Again?
An Article by Geoff BoeingMy article “Off the Grid… and Back Again? The Recent Evolution of American Street Network Planning and Design” has been published by the Journal of the American Planning Association and won the 2020 Stough-Johansson Springer Award for best paper. It identifies recent nationwide trends in American street network design, measuring how urban planners abandoned the grid and embraced sprawl over the 20th century, but since 2000 these trends have rebounded, shifting back toward historical design patterns.
The 99% Invisible City
A Book by Roman Mars & Kurt KohlstedtPsychogeography
A Definition by Guy DebordPsychogeography is an exploration of urban environments that emphasizes playfulness and "drifting". It was defined in 1955 by Guy Debord as:
- "The study of the precise laws and specific effects of the geographical environment, consciously organized or not, on the emotions and behavior of individuals."
- "A total dissolution of boundaries between art and life."
- "A whole toy box full of playful, inventive strategies for exploring cities...just about anything that takes pedestrians off their predictable paths and jolts them into a new awareness of the urban landscape."
New Public Sites
A Place by Graham Coreil-AllenNew Public Sites walking tours explore the history, design and uses of public spaces. Through walking tours, maps and videos, Public Artist Graham Coreil-Allen pushes pedestrian agency, interprets aspects of the everyday and investigates the negotiable nature of the built environment. New Public Sites invites you to practice “radical pedestrianism” – traveling by foot through infinite sites of freedom while testing the limits of and redefining public space.
Local Code: 3,659 Proposals About Data, Design & The Nature of Cities
A Book by Nicholas de MonchauxLocal Code’s data-driven layout arranges drawings of 3,659 digitally tailored interventions for vacant public land in San Francisco, Los Angeles, New York City, and Venice, Italy. The natures of these found parcels is as particular as the cities that house them — land under billboards in Los Angeles, dead-end alleys in San Francisco, city-owned vacant lots in New York City, and abandoned islands in the Venetian lagoon — but have in common an unrecognized potential as a social and ecological resource.
New Urbanism and Beyond: Designing Cities for the Future
A Book by Tigran HaasReading Design
A WebsiteReading Design is an online archive of critical writing about design. The idea is to embrace the whole of design, from architecture and urbanism to product, fashion, graphics and beyond. The texts featured here date from the nineteenth century right up to the present moment but each one contains something which remains relevant, surprising or interesting to us today.
All the buildings in New York (that I've drawn so far)
A Search for Structure
Apologia
A ChapterGrain Shapes and Other Metallurgical Applications of Topology
An EssayStructure, Substructure, and Superstructure
An EssayThe Interpretation of Microstructures of Metallic Artifacts
An EssayMatter versus Materials: A Historical View
An EssayIconography
It is understandable that those students who must work from reproductions of works of art are usually more interested in iconography than in the more subtle questions of technique and quality, but it is regrettable that technical ignorance should so frequently prevent art historians from considering the whole experience of the artist.
Understanding technique
Technique is an essential aspect of any work of art from a trivial trinket to the greatest painting, and some specialized study of it is essential to full appreciation.
Though museum labels and catalogs refer to materials and processes — “bronze,” “fresco,” “parcel gilt,” “tempera,” “lacquer on wood,” and so on — they usually display only superficial attention to the essential details of the artist’s technique.
Bells
Most Japanese bells when hung still have on them one or more rough lines obviously arising in horizontal mold joints. These lines are not removed in fettling the bell, and they seem to be regarded not as defects but rather as a reminder of the reality of the founder’s interaction with his materials. One is reminded of the ceramics that are most treasured in Japan which usually have some unexpected tool marks or irregularity resulting from a kiln mishap.
Nearer to the surface
If in the following I overemphasize the Orient, this is simply because in the Far East the properties of materials are a little nearer to the surface, a little more consciously a part of what the artist is trying to show. The naturalistic aspects of Oriental philosophy encourage a sensitivity to the quality of materials — or is it the inverse, that an early enjoyment of stone, wood, clay, and fiber gave rise to the philosopher’s perception of the soul in all natural things comparable to man himself? Westerners tend to override materials, usually in ignorance, but sometimes proudly as a tour de force.
The drop press
The virtue of thin sheet metal in giving the greatest glitter for a grain of gold was exploited in the earliest days of metallurgy. However, before the days of rolled sheet and drawn wire, most metal objects were made by hammering and were basically three-dimensional in form.
[In contrast] look at the simple drop press — it’s unmodulated blow striking in a single direction symbolizes much of nineteenth-century mechanized production. To make multiple stampings, stacks of very thin metal sheets were superimposed under the hammer, and the final profile with moderately high relief was gradually achieved as finished sheets were removed from the bottom and new ones added at the top.
When the drop press was used to shape large areas of thin sheet metal, the aesthetic qualities of the surface became divorced from the underlying substance, and decoration became independent of the body needed to support it. In any object there is a natural relationship between the surface and the bulk, that is, between its one-, two-, and three-dimensional aspects. The fakery involved in applying gold or silver playing on a solid copper object is quite different from the deception of an ornately stamped piece of thin sheet brass. Compare a magnificent ormolu furniture fitting or even a gilded plaster picture frame with a cheap lamp base embossed in thin sheet brass. In the former, the surface is simply and honestly applied for its optical effect alone; in the latter the fakery is fundamental for it is dimensionally misleading.
Big things and little things
It is hardly possible that human beings could have decided logically that they needed to develop language in order to communicate with each other before they had experienced pleasurable interactive communal activities like singing and dancing. Aesthetic curiosity has been central to both genetic and cultural evolution.
All big things grow from little things, but new little things will be destroyed by their environment unless they are cherished for reasons more like love than purpose.
What's the difference?
I well remember an occasion in 1962 when in a remote Iranian village I asked a blacksmith famous for his superior penknives to tell me the difference between iron and steel. “What’s the difference?” he replied. “What’s the difference between an oak tree and a willow — they have different natures and one must adapt to them.” He did not accept the suggestion that some material absorbed from the fire’s charcoal might have something to do with it, and he would not have understood a word of any lecture I could have given him on diffusion, crystal structure, and phase transformations; yet he could make a good knife and I could not.
The scale of human experience
It is the scale of human experience, from which thought and imagination take off, and to which they must return.
The edifice from which they came
A list of types of bricks used in the Hagia Sophia may help one to build an interesting brick wall, but it poorly suggests the great edifice from which they came.
The interplay of pattern and texture
Some of the more enjoyable surfaces (for example, the grain of a fine mahogany table top or a Japanese sword) have an interplay between pattern and texture which, though two-dimensional, suggests the unseen internal three-dimensional array.
Resonances
The resonances arising in workmanship are often very subtle. The fact that the material itself guides the tool differently in different processes of working introduces changes in the overall relationship of curvatures. The smooth curves of surfaces approaching the edge of a jade axe that come about from innumerable abrasive particles moving against a slightly yielding and mechanically unconstrained backing would seem incongruous if other surfaces or outlines were present that had come from cleavage or from the geometric motions of a machine. These could be produced easily enough, but the eye would not establish larger resonances among them.
Fine arts and decorative arts
The fine arts are conscious and essentially individual in tradition.
The quantitative and economic aspects of the decorative arts, on the other hand, make them intrinsically repetitive. Because of this, their aesthetic qualities have a very intimate relationship to the technology of materials, and their design is thereby basically affected.
In addition to the qualitative need for repetitive detail in design, the decorative arts have a quantitative requirement, namely the imperative of covering large areas or making large numbers of individual objects.
Replication
Consider also the development of mass-production methods involving the casting of molten metals. Though the finest castings were made individually by the lost-wax process, the majority of casting from the earliest days have been designed expressly to facilitate molding. As with punches and dies, most foundry processes have the characteristic that the careful work of the master designer is involved only once, whereafter replication takes over.
Reproduction
The success of a mechanic’s, or a machine’s, reproduction of a thing depends on his, or its, sensitivity to whatever qualities are important, just as the skill of the designer lies in the proper appreciation of surface qualities in terms of structure and shape variation that come from the intended means of production.
The inner nature of material
The work of an artist in getting the details that he wants is greatly facilitated if he selects a material whose inner nature makes it want to take the desired shape.
The idea grows as they work
As they work, the experience of the material under the artist's fingers subtly interacts with the idea in their mind to give the finished work some quality that was rarely fully anticipated. A few artists seem to have such a feeling for their materials that the prevision needs little modification; most say that the idea grows as they work experimentally.
True artistry
The best of all examples of a satisfactory art form based upon the inner nature of a metal is provided by Japanese swords.
Our perception of beauty seems to involve the interaction of several patterns having origin and significance at many different levels of space, time, matter, and spirit. In the Japanese sword blade there is heterogeneity in both the macrostructure and the microstructure. The manner of forging, the heat treatment, and the final polishing operation are all uniquely Japanese techniques, and all make necessary contributions to the final quality of the blades. The shape along would be simplistic form; the forged texture of the steel without heat treatment would at best faintly echo the beauty of grained wood; the outlines of the quench-hardened zone at the edge would be sharp and uninteresting if it depended only on the control of cooling rate during quenching; and the polish would be uniform glitter if the metal were homogeneous. With true artistry all these are made to interact.
Simple variations of the parts
Symmetry, indeed, has been grossly overemphasized in both art and science: its main value is in giving meaning to its absence, dissymmetry, without which there could be no hierarchy.
The eye is repulsed by complexity if no order is detected, but it can be delighted by repetition, translation, rotation, reflection, magnification, and other simple variations of the parts.