Showing posts with label rubber. Show all posts
Showing posts with label rubber. Show all posts

Sunday, June 12, 2011

Evolving Archimedes

There are moments in parenting that are not so different than moments in science; where a eureka type moment is really just an incremental progression of previous experiments, but feels all the same like a momentary revelation. Actually it is not so much parenting, but observing my children when this happens. I am an inactive guest at the museum of discovery.

My daughter Juliette has had 2 complete sets of foam letters and numbers in her bath for 3 years. She is in kindergarten so has progressed significantly as a reader and writer. The letters were used for pure abstraction last year. Earlier this year she went through a period of using them as tools for vocabulary. Now she has inventively moved them back to artistic and mathematical expression. First it was interesting groupings, and patterns, and as of last night she took the colored foam and arranged them as fascinating abstract sculpture, somehow without knowingly embracing the lessons off both Dadaism and abstract expressionism. Of course I likely exaggerate the import of the art itself, but the mental process of the 3 years to come to the formation of these sculptures is truly interesting to me, and when I consider it, not different at all than most things that I do unconsciously.

It occurred to me that there is something very much like foam letters in my life, and I am sorry if this thing is even less interesting than the letters. That is one of the only things in science that I think I know a lot about, dispersion of nanofillers in a rubber matrix. Not surprisingly I didn’t start out life with the goal of being an expert in this. In fact I still don’t really care that I am, except that by becoming proficient in something, it allowed me to see beyond the traditional uses of it. The measurement and comprehension of my subject is something that I started work on nearly 12 years ago, when my family business, Tech Pro, acquired a product called the disperGRADER from a Swedish firm called OptiGrade. Since my Dad and others at our company had a much better grasp of the rest of the instruments that Tech Pro made than I did, I spent most of my time trying to be the expert on this one. That time of my life was very much like Juliette with the foam before she could read at all. She was interested, and somehow could experiment with shape, but did not understand any symbolic meaning behind them. The disperGRADER is at first glance a simple instrument. It is a microscope that takes images of cut filled rubber samples, and does analysis on them. Of course to create something like this is not so simple, and now that I have worked in the microscope business I certainly give Optigrade a lot of credit. Still, the science seemed straight forward, yet the more I dug into it, the more I realized that there was still a lot to be learned about the way that particles behave in polymers, and there were not many people in the world working on these problems. Though this may sound boring, it wasn’t at all. It required me to learn quantum physics, and optics, and a number of other fascinating subjects. In a way it pushed me into grad school to get my Ph.D. because I wanted and needed to learn more. This was not so different than Juliette learning to use the symbols for what they were intended for. She knew how to create a word, and I knew what a filler aggregate was, and how to image it. Yet we both had not yet made a connection from these objects and the literal uses to more advanced thinking. For me it occurred because I actually did start to know enough about the basics of the subject. Actually that is not true, as I still have a lot more to learn, so it would be more accurate to say that I had started to see beyond the basics of the subject. Likewise Juliette can’t read Proust yet, but she is fairly proficient in foam letter words. So I took the experience with dispersion and developed an algorithm for a new microscope. This algorithm seemed like a eureka moment but was not. The entire time I had worked on imaging and filler dispersion I knew that if better tools existed, more could be known. I just didn’t know that I was seeking that solution. Juliette's sculptures to me are much the same. An evolution and a revelation, and to stick with tradition I have encouraged her to jump out of the bath and run around screaming Eureka.

Wednesday, December 30, 2009

Nature's Intellectual Property

I just watched the Charlie Rose interview with Liv Ulmann and Kate Blanchett about the new production of “A Streetcar Named Desire”, playing at BAM in New York. Liv Ullman, a terrific actress herself, is the director of this play, and she said something that strangely applied to the rest of my days conversations. She spoke about that moment when observing an actor that you are directing, when the actor gets it exactly right. The moment is so moving that words cannot describe why it is so perfect. The director is left with a dilemma. Should she tell the actor that he or she got it right, and try to figure out why, or just leave it and be happy it is there? There is risk in both of these approaches. Speaking of it may intellectualize a purely instinctual and brilliant act of the subconscious mind. On the other hand, not speaking of it may mean that it was simply one moment, which may never again be repeated. I know what she is talking about, both from my days in theatre and now working in science. There is a sense of the complexity of inspiration that is humbly rooted in our knowledge of all we don’t know. Human psychology and character development are so deeply intertwined with life experience, theatrical experience, and character interpretation. There is this same thing that happens with invention, and can be equally as fragile.


There are different strongly held beliefs in how to handle intellectual property. Invention of a new technology is not entirely different from the process of bringing a character to life. Like the play, the invention is a unification of previous ideas. Views on how to handle these ideas have varied, and distinguished inventors have disagreed on whether the patent system is truly the best place for them to be revealed. There is an idea, that until the open source movement in software, seemed quant. Benjamin Franklin said after inventing the open stove; “as we enjoy great advantages from the inventions of others, we should be glad of an opportunity to serve others by any invention of ours; and this we should do freely and generously.” This is a highly romantic ideal that has not been very practical. Even not for profit Universities and hospitals now routinely seek patents in order to finance further research. Patents actually do half of what Franklin was suggesting. They do allow others to make and understand the exact invention. They just can’t do it freely for 20 years. By the way, Thomas Jefferson agreed with Franklin on this account. Luckily for them they made their money in other ways, not relying on science and technology for an income. Most private inventors and corporations don’t have this benefit. There is another way that inventions are handled in modern society, which is through trade secrets. The concept of trade secrets is best known in the food and beverage industry. The secret formulas to Coca Cola or to KFC have been famously guarded. This is true though in nearly every product and process, even ones who have extremely strong patents. The truth about trade secrets may be much less brilliant, but more mysterious than a patent. I feel that in most cases a trade secret is something in a process that makes a product unique, even if the company or inventor doesn’t know what it is. I think that it is very possible that Coca Cola does have a secret recipe, but that the recipe by now must have made its way to competitors. The only explanation then on how Coke is still different is that something in the way they make it is different, so they keep making it the same way. This is not so much invention, but chance.

Nature works in similar ways to the trade secret method. There is no patent on trees or minerals. They have come into their present form through a process that worked to keep them intact. Recently while working here in Paris with a very renowned polymer chemist, we were discussing a strange natural phenomenon. For 75 years chemists have been able to create a synthetic rubber which has the exact same chemical structure as natural rubber that comes from the Hevea tree. This was a major development, but strangely when we look at the properties of the natural rubber and the equivalent synthetic, the results are different. With all of our technical and analytical knowledge, we don’t know why this is. For this reason Natural Rubber is still used for many applications. When I was discussing this with my father, he suggested that this was somehow natures “trade secret”. He is right. There is something that for the last billion or so years has been refined to create the latex that is so unique. Nature is not an intelligent being, so likely it does not know why. It just happened, and continues to happen the same way over and over. The same thing is true of silicon, which has a near perfect structure. We would love to create something this perfect in a lab, but we haven’t had the billions of years of trial and error yet. I think with the prototype to evaluate, we should be able to do it faster.

This brings me back to the actors, to instinct and to chance innovation. Perhaps most of what we do is about freezing a process on stage, in a factory or in a lab at the exact right moment. It is also possible that this ability to know when and how to do this is what makes great directors, inventors and companies.