Biological mimicry bio mimesis

Biomimicry (from bios, meaning 'life,' and mimesis, meaning to imitate) is a design principle that seeks sustainable solutions to human problems by consulting and emulating natures time-tested patterns and strategies. The core idea is that nature, imaginative by necessity, has already solved many of the problems we are grappling with. Using natures principles will allow us to create products, processes, and policies that are well-adapted to life on Earth over the long haul. Janine Benyus - (1997) Biomimicry: Innovation Inspired by Nature -challenges us to imagine harnessing energy like a leaf, growing food like a prairie, spinning fiber like a spider, growing ceramics like an oyster or running a business like a redwood forest.

Nature as Model : Biomimicry is a new science that studies nature's models and then imitates or takes inspiration from these designs and processes to solve human problems, e.g., a solar cell inspired by a leaf.

Nature as Mentor : Biomimicry uses an ecological standard to judge the "rightness" of our innovations. After 3.8 billion years of evolution, nature has learned: What works. What is appropriate. What lasts.

Nature as Measure : Biomimicry is a new way of viewing and valuing nature. It introduces an era based not on what we can extract from the natural world, but on what we can learn from it.

Biomimics, of which Leonardo Da Vinci and Buckminster Fuller are excellent historical examples, look to nature for specific advice: How will we grow our food? How will we harness energy? How will we make our materials? How will we keep ourselves healthy? How will we store what we learn? How will we conduct business without drawing on natures capital?

With biological knowledge doubling every five years, we now have the instruments and the capacity to mimic nature like never before in history. "What would nature do here?" is the crucial question a designer asks to arrive at a biomimetic solution for any given problem. And success stories are already rolling in.

The examples are inspiring:

Living Machines
John Todd developed Living Machines after he asked the question, "How does nature clean water?" The answerby wetlands filtrationbecame the inspiration for waste water treatment systems that employ bioreactors with communities of organisms that use the waste input as nutrients, digesting them and in the process purifying the water. The water released from these systems is often cleaner than municipal tap water.

Redesigned Signs
Any child can and tell you that peacock feathers are brightly colored. What a surprise then to learn that the only pigment these feathers contain is the brown feather pigment melanin. The deep colors we see result from the directional layering of the feathers keratin protein which, combined with the melanin background, causes the light to refract in such a way as to have us see the color. The color is structural.

Color without paint
Packagings final coat of paint or ink gives it an environmental black eye. Organisms use two methods to create color without paint: internal pigments and the structural color that makes tropical butterflies, peacocks, and hummingbirds so gorgeous. A peacock is a completely brown bird. Its colors result from light scattering off regularly spaced melanin rods, and interference effects through thin layers of keratin (the same stuff as your fingernails). What if packages could be dipped in something clear and nontoxic that played with light to create the illusion of color? Iridigm, in San Francisco, is using structural color ideas from tropical butterflies to create a PDA screen that can be easily read in sunlight.

Inspired by this natural design, a Japanese company has created reusable display signs; the surfaces of these signs are structurally altered through exposure to UV light, which changes the crystalline alignment of the material, throwing off color to display a desired message. These signs can be continually reused and imprinted with new images, eliminating the need to manufacture new signs or use toxic paints.

Self-Cleaning Surfaces

While there is a growing trend to seek out benign detergents to reduce environmental impacts, there is a deeper biomimetic question to ask: "How does nature clean surfaces?" Indeed, when Prof. Dr. Wilhelm Barthlott from the University in Bonn, Germany, posed this question and examined leaf surfaces for clues, it became apparent nature doesnt use detergents at all. Nature, instead, has a way of structuring surfaces with self-cleaning properties.

Plants like the swampland lotus cant afford to have dirt interfere with their sun bathing. Using powerful scopes, German scientists found that lotus leaves have mountainous surfaces that keep dirt particles teetering on the peaks rather than adhering. Rainwater balls up and rolls the loose particles away like a snowball removing leaves from your lawn. A number of new products are available in self-cleaning lotus-effect surfaces, including roof shingles, car paint, and a building faade paint, Lotusan, made by ISPO. The paint dries with lotus-like bumps, and rainwater cleans the building.

Water droplets from rain will roll off the surface, automatically removing dirt as they wash over.

Protection from microbes: To protect against microbial squatters, a biomimic would look for clues in the skins of organisms that manage to keep themselves slime-free. Red and green algae (kelp) are able to stabilize a normally reactive compound called bromine to fend off microbes without harming the alga. Nalco engineer William McCoy borrowed this stabilization recipe to create StabrexTM, a chlorine alternative that keeps industrial cooling systems microbe-free.

Carpet Colors

Interface, Inc., the carpet manufacturer that was among the first to adopt The Natural Step framework for creating ecologically and socially sound business practices, is also pioneering implementation of biomimetic design strategies that will complement its innovative practice of leasing, rather than selling, carpet tile.

A significant amount of waste is generated in the manufacture of carpet, often due to slight color differences from batch to batch that also make the replacement of worn carpet tiles more difficult. Designers at Interface have explored natural models for design and color to find answers to design questions. These explorations have resulted in "Entropy," a carpet that mimics the random color palette of a grassland and a forest floor, resulting in easier matching of replacement tiles, fewer discards, easier installation, all ultimately resulting in waste reduction.

Sustainable Agriculture

Among the most meaningful lessons of biomimicry is its application to agriculture, where it has the potential to impact our lives at the core. Modern agricultural practice has imposed demands on plants and soil that are not in harmony with the natural needs of the system. From plowing each year in order to plant annual crops, to chemical fertilizers and oil-based pesticides, it takes about 10 kilocalories of petroleum to produce one kilocalorie of food.

Natural systems agriculture looks at a landscape and asks, "What grows here naturally?" The way to get off this treadmill of vigilance, says Wes Jackson of the Land Institute, is to breed edible perennial crops and grow them in a prairie-like polyculture. What we would have, instead of an extractive agriculture that mimics industry, is a self-renewing agriculture that mimics nature. Wes Jackson was recently awarded a Right Livelihood Award, commonly known as the Alternative Nobel Prize, for his two decades of work to develop a sustainable agricultural system based on perennial prairie plants.

High profile companies such as Interface, Inc. and Nike have recognized the innovative potential of biomimicry. Both have been participating in two-day workshops that Dayna Baumeister, a colleague of Benyus, offers to introduce biomimicry. Suitcases full of zoological specimens offer visual prompts for ideas: branches from a cholla cactus, specimens of wood, antlers, coral, spiders, fur, shells, lightning bugs, leaves, feathers, etc. Participants have the hands-on experience of looking to nature for design ideas and leave the workshops understanding the value of collaborating with biology and biologists on design projects, whether for transportation systems, a new product designs, or new company structures