Janine Benyus: Biomimicry in action

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自然を観察し自然から学ぶことが、人類生き残りために必要だとベニュスさんが訴えます。

【話題】 バイオミミックリーとは

【時間】 17分39秒

【要約】

１．バイオミミクリーとは

　自然から学び、自然からデザインのヒントをもらうこと

　「春」が自然のスゴさを思い出させてくれる

　スズメバチの巣を見つけた近所の子供（コディーくん）の話

　ヒトが発明したモノ、必要としているモノは、既に自然界に存在している

２．バイオミミックリーを実践している研究

　自然はどのように問題を解決するか

　例１）カワセミの形　→　JR西日本の新幹線の形状

　例２）ガラパゴスサメの肌　→　微生物の付着し難い素材

　例３）砂漠に生きる虫　→　霧から真水を集める装置

　例４）サンゴ礁　→　大気中の二酸化炭素を吸着してセメントの素材に

　例５）光合成　→　新しい太陽電池

　例６）赤血球　→　目詰まりし難い脱塩膜

　例７）樹木・骨　→　自動車の骨格軽量化

　例８）甲虫の身体をつくる物質キチン　→　ポリマー、高分子化合物

　例９）微生物　→　ナノテクノロジー

　例10）ミツバチ、アリ　→　スマートグリット、省力化

　例11）樹木の毛細管現象、蒸散作用　→　ポンプなしで水を吸い上げる仕組み

　例12）電気ウナギ　→　自分自身が感電しない仕組み

　例13）ザトウクジラのヒレ　→ そよ風でも回転する風車

　例14）内耳　→　エネルギー効率の高い半導体

　例15）生態系　→　都市のデザイン

３．どの問題が解決に値するか？

　あらゆる生物の情報を集めたサイト→ http://www.asknature.org/
　私たちがこれからも生きていくためには自然から学び続けなければならない

【語彙】

competent ：有能な、優秀な

discipline ：分野

bailouts ：救済処置

priority ：優先順位

wasps ：ススメバチ

apprentice ：見習い

repel ：撃退する

fouling ：付着物

barnacles ：フジツボ

bask ：のんびりする？

denticles ：ぎざぎざの突起物

adhere ：付着する

douse ：びしょ濡れにする

critter ：生き物

bumps ：突起

kinetic ：動力の

sequester ：隔離する

clog ：詰まらせる

osmosis ：浸透

along lines of stress ：圧力かかる線に沿って

chitin ：キチン

embed ：埋め込む

emit ：排出する、放出する

sip ：ちびちびと飲む、すする

capillary ：毛細血管

transpiration ：蒸散

insulate ：（電気を）絶縁する

scalloped ：波打った形の

cochlear ：内耳

depiction ：描写

conducive ：助けとなる、貢献する、資する

【transcripts】

If I could reveal anything that is hidden from us, at least in modern cultures, it would be to reveal something that we've forgotten, that we used to know as well as we knew our own names. And that is that we live in a competent universe, that we are part of a brilliant planet, and that we are surrounded by genius.

Biomimicry is a new discipline that tries to learn from those geniuses, and take advice from them, design advice. That's where I live, and it's my university as well. I'm surrounded by genius. I cannot help but remember the organisms and the ecosystems that know how to live here gracefully on this planet. This is what I would tell you to remember if you ever forget this again. Remember this. This is what happens every year. This is what keeps its promise. While we're doing bailouts, this is what happened. Spring.

Imagine designing spring. Imagine that orchestration. You think TED is hard to organize. (Laughter) Right? Imagine, and if you haven't done this in a while, do. Imagine the timing, the coordination, all without top-down laws, or policies, or climate change protocols. This happens every year. There is lots of showing off. There is lots of love in the air. There's lots of grand openings. And the organisms, I promise you, have all of their priorities in order.

I have this neighbor that keeps me in touch with this, because he's living, usually on his back, looking up at those grasses. And one time he came up to me -- he was about seven or eight years old -- he came up to me. And there was a wasp's nest that I had let grow in my yard, right outside my door. And most people knock them down when they're small. But it was fascinating to me, because I was looking at this sort of fine Italian end papers. And he came up to me and he knocked. He would come every day with something to show me. And like, knock like a woodpecker on my door until I opened it up. And he asked me how I had made the house for those wasps, because he had never seen one this big. And I told him, "You know, Cody, the wasps actually made that." And we looked at it together. And I could see why he thought, you know -- it was so beautifully done. It was so architectural. It was so precise.

But it occurred to me, how in his small life had he already believed the myth that if something was that well done, that we must have done it. How did he not know -- it's what we've all forgotten -- that we're not the first ones to build. We're not the first ones to process cellulose. We're not the first ones to make paper. We're not the first ones to try to optimize packing space, or to waterproof, or to try to heat and cool a structure. We're not the first ones to build houses for our young.

What's happening now, in this field called biomimicry, is that people are beginning to remember that organisms, other organisms, the rest of the natural world, are doing things very similar to what we need to do. But in fact they are doing them in a way that have allowed them to live gracefully on this planet for billions of years. So these people, biomimics, are nature's apprentices. And they're focusing on function. What I'd like to do is show you a few of the things that they're learning. They have asked themselves, "What if, every time I started to invent something, I asked, 'How would nature solve this?'"

And here is what they're learning. This is an amazing picture from a Czech photographer named Jack Hedley. This is a story about an engineer at J.R. West. They're the people who make the bullet train. It was called the bullet train because it was rounded in front, but every time it went into a tunnel it would build up a pressure wave, and then it would create like a sonic boom when it exited. So the engineer's boss said, "Find a way to quiet this train."

He happened to be a birder. He went to the equivalent of an Audubon Society meeting. And he studied -- there was a film about king fishers. And he thought to himself, "They go from one density of medium, the air, into another density of medium, water, without a splash. Look at this picture. Without a splash, so they can see the fish. And he thought, "What if we do this?" Quieted the train. Made it go 10 percent faster on 15 percent less electricity.

How does nature repel bacteria? We're not the first ones to have to protect ourselves from some bacteria. Turns out that -- this is a Galapagos Shark. It has no bacteria on its surface, no fouling on its surface, no barnacles. And it's not because it goes fast. It actually basks. It's a slow-moving shark. So how does it keep its body free of bacteria build-up? It doesn't do it with a chemical. It does it, it turns out, with the same denticles that you had on Speedo bathing suits, that broke all those records in the Olympics,

but it's a particular kind of pattern. And that pattern, the architecture of that pattern on its skin denticles keep bacteria from being able to land and adhere. There is a company called Sharklet Technologies that's now putting this on the surfaces in hospitals to keep bacteria from landing, which is better than dousing it with anti-bacterials or harsh cleansers that many, many organisms are now becoming drug resistant. Hospital-acquired infections are now killing more people every year in the United States than die from AIDS or cancer or car accidents combined -- about 100,000.

This is a little critter that's in the Namibian desert. It has no fresh water that it's able to drink, but it drinks water out of fog. It's got bumps on the back of its wing covers. And those bumps act like a magnet for water. They have water-loving tips, and waxy sides. And the fog comes in and it builds up on the tips. And it goes down the sides and goes into the critter's mouth. There is actually a scientist here at Oxford who studied this, Andrew Parker. And now kinetic and architectural firms like Grimshaw are starting to look at this as a way of coating buildings so that they gather water from the fog. 10 times better than our fog-catching nets.

CO2 as a building block. Organisms don't think of CO2 as a poison. Plants and organisms that make shells, coral, think of it as a building block. There is now a cement manufacturing company starting in the United States called Calera. They've borrowed the recipe from the coral reef, and they're using CO2 as a building block in cement, in concrete. Instead of -- cement usually emits a ton of CO2 for every ton of cement. Now it's reversing that equation, and actually sequestering half a ton of CO2 thanks to the recipe from the coral.

None of these are using the organisms. They're really only using the blueprints or the recipes from the organisms. How does nature gather the sun's energy? This is a new kind of solar cell that's based on how a leaf works. It's self-assembling. It can be put down on any substrate whatsoever. It's extremely inexpensive and rechargeable every five years. It's actually a company a company that I'm involved in called OneSun, with Paul Hawken.

There are many many ways that nature filters water that takes salt out of water. We take water and push it against a membrane. And then we wonder why the membrane clogs and why it takes so much electricity. Nature does something much more elegant. And it's in every cell. Every red blood cell of your body right now has these hourglass-shaped pores called aquaporins. They actually export water molecules through. It's kind of a forward osmosis. They export water molecules through, and leave solutes on the other side. A company called Aquaporin is starting to make desalination membranes mimicking this technology.

Trees and bones are constantly reforming themselves along lines of stress. This algorithm has been put into a software program that's now being used to make bridges lightweight, to make building beams lightweight. Actually G.M. Opel used it to create that skeleton you see, in what's called their bionic car. It lightweighted that skeleton using a minimum amount of material, as an organism must, for the maximum amount of strength.

This beetle, unlike this chip bag here, this beetle uses one material, chitin. And it finds many many ways to put many functions into it. It's waterproof. It's strong and resilient. It's breathable. It creates color through structure. Whereas that chip bag has about seven layers to do all of those things. One of our major inventions that we need to be able to do to come even close to what these organisms can do is to find a way to minimize the amount of material, the kind of material we use, and to add design to it. We use five polymers in the natural world to do everything that you see. In our world we use about 350 polymers to make all this.

Nature is nano. Nanotechnology, nanoparticles, you hear a lot of worry about this. Loose nanoparticles. What is really interesting to me is that not many people have been asking, "How can we consult nature about how to make nanotechnology safe?" Nature has been doing that for a long time. Embedding nanoparticles in a material for instance, always. In fact, sulfur-reducing bacteria, as part of their synthesis, they will emit, as a byproduct, nanoparticles into the water. But then right after that, they emit a protein that actually gathers and aggregates those nanoparticles so that they fall out of solution.

Energy use. Organisms sip energy, because they have to work or barter for every single bit that they get. And one of the largest fields right now, in the world of energy grids, you hear about the smart grid. One of the largest consultants are the social insects. Swarm technology. There is a company called Regen. They are looking at how ants and bees find their food and their flowers in the most effective way as a whole hive. And they're having appliances in your home talk to one another through that algorithm, and determine how to minimize peak power use.

There's a group of scientists in Cornell that are making what they call a synthetic tree, because they are saying, "There is no pump at the bottom of a tree." It's capillary action and transpiration pulls water up, a drop at a time, pulling it, releasing it from a leaf and pulling it up through the roots. And they're creating -- you can think of it as a kind of wallpaper. They're thinking about putting it on the insides of buildings to move water up without pumps.

Amazon electric eel -- incredibly endangered, some of these species -- create 600 volts of electricity with the chemicals that are in your body. Even more interesting to me is that 600 volts doesn't fry it. You know we use PVC, and we sheath wires with PVC for insulation. These organisms, how are they insulating against their own electric charge? These are some questions that we've yet to ask.

Here's a wind turbine manufacturer that went to a whale. Humpback whale has scalloped edges on its flippers. And those scalloped edges play with flow in such a way that is reduces drag by 32 percent. These wind turbines can rotate in incredibly slow windspeeds, as a result.

MIT just has a new radio chip that uses far less power than our chips. And it's based on the cochlear of your ear, able to pick up internet, wireless, television signals and radio signals, in the same chip. Finally, on an ecosystem scale.

At Biomimicry Guild, which is my consulting company, we work with HOK Architects. We're looking at building whole cities in their planning department. And what we're saying is that, shouldn't our cities do at least as well, in terms of ecosystem services, as the native systems that they replace? So we're creating something called Ecological Performance Standards that hold cities to this higher bar.

The question is -- biomimicry is an incredibly powerful way to innovate. The question I would ask is, "What's worth solving?" If you haven't seen this, it's pretty amazing. Dr. Adam Nieman. This is a depiction of all of the water on Earth in relation to the volume of the Earth -- all the ice, all the fresh water, all the sea water -- and all the atmosphere that we can breathe, in relation to the volume of the Earth. And inside those balls life, over 3.8 billion years, has made a lush, livable place for us.

And we are in a long, long line of organisms to come to this planet and ask ourselves, "How can we live here gracefully over the long haul?" How can we do what life has learned to do? Which is to create conditions conducive to life. Now in order to do this, the design challenge of our century, I think, we need a way to remind ourselves of those geniuses, and to somehow meet them again.

One of the big ideas, one of the big projects I've been honored to work on is a new website. And I would encourage you all to please go to it. It's called AskNature.org. And what we're trying to do, in a TEDesque way, is to organize all biological information by design and engineering function.

And we're working with EOL, Encyclopedia of Life, Ed Wilson's TED wish. And he's gathering all biological information on one website. And the scientists who are contributing to EOL are answering a question, "What can we learn from this organism?" And that information will go into AskNature.org. And hopefully, any inventor, anywhere in the world, will be able, in the moment of creation, to type in, "How does nature remove salt from water?" And up will come mangroves, and sea turtles and your own kidneys.

And we'll begin to be able to do as Cody does, and actually be in touch with these incredible models, these elders that have been here far, far longer than we have. And hopefully, with their help, we'll learn how to live on this Earth, and on this home that is ours, but not ours alone. Thank you very much. (Applause)

ジャニン・ベニュス「バイオミミクリー活躍中」