Light & Illumination
159. Light on Two Sides of Every Room
Only a moment of light
A vaporous middle-world
Light and Space
The gentle light of shoji screens
Le Corbusier, the greatest architect of the last century, noted that 'architecture is the learned game, correct and magnificent, of forms assembled in light', demonstrating to what extent light has been prioritized in the Western tradition. Tanizaki, on the other hand, spoke of the important of shadows, of extended eaves. Rather than the light that shines directly into a room, he praised the soft light that penetrates a space after being reflected off the floor, and again from the ceiling.
...In Japanese architecture, the gentle light that passes through shoji screens serves a key purpose. It reaches right to the back of the room, so that the space feels bright, even without the aid of artificial light. The soft light filtering through the white film at Takanawa Gateway Station represents a form of light that was forgotten about by Japanese Modernism.
Irwin Fluorescents
In order: Kenny Price, Blue Lou, Legacy, Fourfold, Niagara.
Irwin has explained that he decided to use the fluorescent tubes in the "dumbest" way possible, but, as one critic cautioned, "dumb, it turns out, has a special meaning for him: It's a form so simple that you end up not paying attention to it as a form." Irwin's interest was, rather, in the range of light, color, reflection, and shadow interaction made possible by combining tubes with different hues and finishes by wrapping them with theatrical gels.
Frosted and transparent
Irwin's window arrangement at the Dia:Beacon.
In addition to managing the flow of people in the spaces of the museum in order to maximize freedom of movement and choice, Irwin also modified the industrial window grids to create perceptual ambiguity, placing transparent glass in the inner four panes while using frosted glass for the outer panes. With this, Irwin solved the problem of either having the windows become a wall of glaring light, if all transparent glass was used, or having them become a claustrophobic muffling of space, if all frosted glass was used. Irwin's windows catch the eye in a back and forth oscillation between distant and proximal focus.
A time when time was not
Darkness cannot say: “I precede the coming light”, but there is a sense in which light can say, “Darkness preceded me”.
Doubtless there is an event, X, in the future, by reference to which we may say that we are at present in a category of Not-X, but until X occurs, the category of Not-X is without reality. Only X can give reality to Not-X; that is to say, Not-Being depends for its reality upon Being. In this way we may faintly see how the creation of Time may be said automatically to create a time when Time was not, and how the Being of God can be said to create a Not-Being that is not God.
Waiting to repay the gift of vision
Like a forest or a garden or a field, an honest page of letters can absorb – and will repay – all the attention it is given. Much type now, however, is delivered to computer screens. It is a good deal harder to make text truly legible on screen than to render streaming video. Both fine technology and great restraint are required to make the screen as restful to the eyes as ordinary paper.
The underlying problem is that the screen mimics the sky instead of the earth. It bombards the eye with light instead of waiting to repay the gift of vision – like the petals of a flower, or the face of a thinking animal, or a well-made typographic page. And we read the screen the way we read the sky: in quick sweeps, guessing at the weather from the changing shapes of clouds, or in magnified small bits, like astronomers studying details. We look to it for clues and revelations more than wisdom. This makes it an attractive place for the open storage of pulverized information – names, dates, or library call numbers, for instance – but not so good a place for thoughtful text.
Darkness becomes you
Searle: In psych tests on deep space, I ran a number of sensory deprivation trials, tested in total darkness, on floatation tanks - and the point about darkness is, you float in it. You and the darkness are distinct from each other because darkness is an absence of something, it's a vacuum. But total light envelops you. It becomes you.
White walls
When people say that white walls are cold and characterless, I wonder whether they have ever stopped to look at one. It's not just about the drama of light and shadow, although I love the fragment of the ghost chair in this picture, but the way the smallest nuances of texture and tone come alive in certain conditions.
Lights and lamps
The street of an old town
How much more mysterious and inviting is the street of an old town with its alternating realms of darkness and light than are the brightly and evenly lit streets of today! Homogenous bright light paralyzes the imagination in the same way that homogenization of space weakens the experience of being, and wipes away the sense of place. The human eye is most perfectly tuned for twilight rather than bright daylight.
Desired qualities of light
In today's architectural practice, light is regrettably often treated merely as a quantitative phenomenon; design regulations and standards specify required minimum level of illumination and window sizes, but they do not define any maximum levels of luminance, or desired qualities of light, such as its orientation, temperature, color, or reflectedness.
Daylight should not tyrannize architecture
Daylight should not tyrannize architecture. As with so many aspects of the design of the city, light is something that should be available in a variety of modulations and susceptible to a variety of controls. However, the prejudice must always be for access.
Without effective eyes to see, does a light cast light?
Street lights can be like that famous stone that falls in the desert where there are no ears to hear. Does it make a noise? Without effective eyes to see, does a light cast light? Not for practical purposes.
135. Tapestry of Light and Dark
Problem
In a building with uniform light level, there are few “places” which function as effective settings for human events. This happens because, to a large extent, the places which make effective settings are defined by light.
Solution
Create alternating areas of light and dark throughout the building, in such a way that people naturally walk toward the light, whenever they are going to important places: seats, entrances, stairs, passages, places of special beauty, and make other areas darker, to increase the contrast.
Salk Institute for Biological Studies, La Jolla, 1959–65
If you are there at sunset, as are the scientists every day, you see the most magical of transformations: the golden glow that fills the sky to the west is first reflected in the water of the ocean and then shoots like a line of fire up through the gathering darkness of the plaza's stone floor, to reach its source in the cubic fountain. The court is breathtaking in its sublime power, opening at the edge of the continent to the Pacific Ocean and framing the light blue-on-dark-blue horizon line of the sea and sky.
Let there be light
And it came to pass that AC learned how to reverse the direction of entropy. But there was now no man to whom AC might give the answer of the last question. No matter. The answer – by demonstration – would take care of that, too.
For another timeless interval, AC thought how best to do this. Carefully, AC organized the program.
The consciousness of AC encompassed all of what had once been a Universe and brooded over what was now Chaos. Step by step, it must be done.
And AC said, "LET THERE BE LIGHT!"
And there was light.
If you look for the light
If you look for the light,
you can often find it.
But if you look for the dark,
that is all you will ever see.— Uncle Iroh
Darkling in the eternal space
The bright sun was extinguish'd, and the stars
Did wander darkling in the eternal space,
Rayless, and pathless, and the icy earth
Swung blind and blackening in the moonless air;
Morn came and went—and came, and brought no day.Wasting light
Yamamoto Sanehiko, president of the Kaizo publishing house, told me of something that happened when he escorted Dr. Einstein on a trip to Kyoto. As the train neared Ishiyama, Einstein looked out the window and remarked, "Now that is terribly wasteful." When asked what he meant, Einstein pointed to an electric lamp burning in broad daylight.
And the truth of the matter is that Japan wastes more electric light than any Western country except America.
- Poured
The great soundless whirl of darkness
I could not know that even then the little light was being drawn irresistibly into the great soundless whirl of darkness and that I was watching a light that was destined soon to blink out and disappear.
In the world of sunlight
And here we come back to that forgotten, outcast word, the soul.
Indeed, the soul possesses an inner light, the light that an inner vision knows and expresses in the world of brilliant colors, in the world of sunlight.
Midwest sunset
For those who've never experienced a sunrise in the rural Midwest, it's roughly as soft and romantic as someone's abruptly hitting the lights in a dark room. This is because the land is so flat that there is nothing to impede or gradualize the sun's appearance. It's just all of a sudden there.
In Praise of Shadows
A Book by Jun'ichirō Tanizaki & Thomas J. Harper- Things that shine and glitter
- A naked bulb
- The Japanese toilet
- Empty dreams
- Most important of all are the pauses
The Finish Fetish Artists
An EssayFor others, perhaps especially those artists who worked with light and transparency and were involved in the birth of the Light and Space Movement, an immaculate surface is a prerequisite. Helen Pashgian explained this very clearly:
“On any of these works, if there is a scratch... that’s all you see. The point of it is not the finish at all – the point is being able to interact with the piece, whether it is inside or outside, to see into it, to see through it, to relate to it in those ways. But that’s why we need to deal with the finish, so we can deal with the piece on a much deeper level”.
The importance of a pristine surface calls for a very low tolerance to damage by the artists. The feeling is shared by Larry Bell:
“I don’t want you to see stains on the glass. I don’t want you to see fingerprints on the glass... I don’t want you to see anything except the light that’s reflected, absorbed, or transmitted”
Perfectly Clear (Ganzfield)
An Artwork by James TurrellThe light that hits the glass
A Quote by Larry BellMy media isn’t glass, it’s the light that hits that glass.
How the light gets in
A Quote by Leonard CohenThere is a crack in everything.
That's how the light gets in.Light & Shadow
An Artwork by Kumi YamashitaCHAIR, 2014
FRAGMENTS, 2009I sculpt using both light and shadow. I construct single or multiple objects and place them in relation to a single light source. The complete artwork is therefore comprised of both the material (the solid objects) and the immaterial (the light or shadow).
The Design of Design
What's Wrong With This Model?
A ChapterDesign process models: A summary argument
- A formal design process model is needed, to help organize design work, to aid communication in and about projects, and for teaching.
- Having a visual, geometric representation of a design process model is crucial, for designers are spatial thinkers. They will most easily learn, think about, share, and talk in terms of a model with a clear geometric picture.
- The Rational Model of design occurs naturally to engineers.
- The linear, step-by-step Rational Model is highly misleading. It does not reflect what real designers do, or what the best design thinkers identify as the essence of the design process.
- The bad model matters. It has led to the too-early binding of requirements, leading in turn to bloated products and schedule/budget/performance disasters.
- The Rational Model has persisted in practice despite its inadequacies and plenty of cogent critiques. This is because of its seductive logical simplicity, and because builders and clients needs “contracts."
- Several alternative models have been proposed. I find Boehm’s Spiral Model the most promising. We need to keep developing it.
The spiral model
The spiral shape certainly suggests progress. It associates successive repetitions of the same activity. The geometric shape is easily understood and memorable. The model emphasizes prototyping, starting with user-interface prototypes and user testing long before an operational prototype is possible.
Since a development model is principally used by developers, I believe having it designer-centered is entirely appropriate. With Boehm and against Denning and Dragon, I advocate frequent but not continuous interaction with representative users, with successive prototypes as the vehicles.
I strongly believe that way forward is to embrace and develop the Spiral Model.
A grossly obese set of requirements
Who advocates in the requirements process for the product itself—its conceptual integrity, its efficiency, its economy, it’s robustness? Often, no one. As often, an architect or engineer who can offer only opinion based on taste and instinct, unbuttressed as yet by facts. For in a classical Waterfall Model product process, requirements are set before design is begun.
The result, of course, is a grossly obese set of requirements, the union of many wish lists, assembled without constraints. Usually, the list is neither prioritized nor weighted. The social forces in the committee forbid the painful conflicts occasioned by even weighting, much less prioritizing.
Requirements proliferation
Any attempt to formulate all possible requirements at the start of a project will fail and would cause considerable delays. — Pahl and Beitz, Engineering Design
As Project Manager, I had to reject the requirements document as totally impractical, and have a quite small team of architects, marketers, and implementers extract the essence.
Requirements proliferation must be fought, by both birth control and infanticide.
The architectural contracting model
It is the necessity for contracts, whether within an organization or between organizations, that forces the too-early binding of goals, requirements, constraints. The pressure for a complete and agreed-upon set of requirements run into the hard fact, that it is essentially impossible to specify any complete and accurate set of requirements for any complex system except in iterative interaction with the design process.
How have the centuries-old building design disciplines handled this perplexity? Fundamentally, by a quite different contracting model.
- The client develops a program, not a specification, for the building.
- He contracts with an architect, usually on an hourly or percentage basis, for services, not for a specified product.
- The architect elicits from the client, the users, and other stakeholders a more complete program, which does not pretend to be a rigid contractable product specification.
- The architect does a conceptual design that approximates the reconciliation of program and the constraints of budget, schedule, and code. This serves as a first prototype, to be conceptually tested by the stakeholders.
- After iteration, the architect performs design development, often producing more detailed drawings, a 3-D scale model, mockups, and so on. After stakeholder iteration, the architect produces construction drawings and specifications.
- The client uses these drawings and specifications to enter into a fixed-price contract for the product.
Notice how this long-evolved model separates the contract for design from the contract for construction. Even when both are performed by the same organization, this separation clarifies many things.
The rational model of design
Engineers seem to have a clear, if usually implicit, model of the process of design. It is usually an orderly model of an orderly process as the engineer conceives it.
The notion that the design process should be modeled as a systematic step-by-step process seems to have first developed in the German mechanical engineering community.
Herbert Simon independently argues for design as a search process in The Sciences of the Artificial. He was motivated to lay out a strictly rational model of design precisely because such a model was a necessary precursor to automating design. His model remains influential even if today we recognize the "wicked problem" of original design as one of the least promising candidates for AI.
In software engineering, Winston Royce independently introduced a seven-step Waterfall Model to bring order to the process. In fact, Royce introduced his waterfall as a straw man that he then argued against, but many people have cited and followed the straw man rather than his more sophisticated models. Even if ironically, Royce's seven-step model must be considered one of the foundational statements of the Rational Model of Design.
Design process models
Any systematization of the design process is a great step forward compared to "Let's just start coding, or building." It:
- Provides clear steps for planning a design project
- Furnishes clearly definable milestones
- Suggests project organization and staffing
- Helps communication within the design team
- Is readily teachable to novices, and tells novices facing their first design assignments where to begin.
The Rational Model in particular brings yet more advantages. The early explicit statement of goals, secondary desiderata, and constraints helps a team avoid wandering, and it breeds team unification on purposes. Planning the whole design process before starting coding or formal drawings avoids many troubles and much wasted effort. Casting the process as a systematic search of a design space broadens the horizon of the individual designers and lifts their eyes far beyond their previous personal experiences.
But the rational model is much too simplistic, even in Simon's richly developed version.
The dual ladder
The first task for growing designers, as opposed to managers, is to craft a proper career path for them, one whose compensation and sociological status reflect their true value to the creative enterprise. This is commonly called the dual ladder. It it easy to give corresponding salaries to corresponding rungs, but it requires strong proactive measures to give them equal prestige: equal offices, equal staff support, reverse-biased raises when duties change.
Why does the dual ladder need special attention? Perhaps because managers, being human, are inherently inclined to consider their own tasks more difficult and important than design and need to deliberately assess what makes creativity and innovation happen.
A platonic ideal
As the architecture design progressed, I observed what at first seemed quite strange. For the architecture team, the real System/360 was the Design Concept itself, a Platonic ideal computer. Those physical and electrical Model 50, Model 60, Model 70, and Model 90 things under construction out on the engineering floors were but Plato’s shadows of the real System/360. The real System/360’s most complete and faithful embodiment was not in silicon, copper, and steel, but in the prose and diagrams of IBM System/360 Principles of Operation, the programmer’s machine language manual.
I had a similar experience with the View/360 beach house. Its Design Concept came to be real long before any construction began. It persisted through many versions of drawings and cardboard models.
The design concept
Is there positive value to recognizing an invisible Design Concept as a real entity in design conversations? I think so.
First, great designs have conceptual integrity—unity, economy, clarity. They not only work, they delight, as Vitruvius first articulated. We use terms such as elegant, clean, beautiful to talk about bridges, sonatas, circuits, bicycles, computers, and iPhones. Recognizing the Design Concept as an entity helps us to seek its integrity in our own solo designs, to work together for it in team designs, and to teach it to our youth.
Second, talking frequently about the Design Concept as such vastly aids communication within a design team. Unity of concept is the goal; it is achieved only by much conversation.
Thus, moviemakers use storyboards to keep their design conversations focused on the Design Concept, rather than on implementation details.
The Idea
The design is thus the mental formulation, which Sayers calls “the Idea,” and it can be complete before any realization is begun. Mozart’s response to his father’s inquiry about an opera due to the duke in three weeks both stuns us and clarifies the concept.
For most human makers of things, the incompletenesses and inconsistencies of our ideas become clear only during implementation. Thus it is that writing, experimentation, “working out,” are essential disciplines for the theoretician.
The boldest decisions
In retrospect, many of the case studies have a striking common attribute: the boldest design decisions, whoever made them, have accounted for a high fraction of the goodness of the outcome. These bold decisions were made due sometimes to vision, sometimes to desperation. They were always gambles, requiring extra investment in hopes of getting a much better result.
Intuition and systems
Systematic design excluding intuition yields pedestrian follow-ons and knock-offs; intuitive design without system yields flawed fancies. How to weld intuition and systematic approach? How to grow as a designer? How to function in a design team?