I was watching the Discovery Channel last night and they had that show on that uses the super slo-mo cameras to record interesting things and show how physics works in some odd situations. Long story short, they had a kendo practitioner on slicing through various meaty things with a katana. It was amazing how easily the effortlessly the blade moved through even pork shoulders, showing no slowdown even through thick bone. I've done a bit of reading into the techniques used in forging katanas, especially the careful balance between softer metal which makes up the core of the blade and the harder, more brittle material that comprises the blade. In order to maximize energy transfer and prevent shattering, while also ensuring a strong cutting surface, both need to be proportional. The New Yorker had an article a few weeks ago in the food issue about a modern knife forger who has attempted to integrate some of the elements of the Japanese style of forging into his kitchen knives (although truthfully we still don't understand all of the metallurgical principles that goes into the traditional Japanese forging techniques).
Yet what I thought was most interesting was the explanation from the swordsman, who was talking about energy transfer in what sounded like martial arts terms, and how those tenets were even more apparent in his strikes. The small amount of kendo that I have studied deals with an entire system of principles for combat which go far beyond the physical. Energy (and I'm purposely being vague here) is transferred not only through the blade and the strike itself, but also through other means of control. One of the key principles of kendo sparring is controlling the center line. When I trained, I was always told that the blade should come out in a straight line from a point between the groin and the belly button, at a specific angle to the body but without inclining the blade to the left or right. When sparring, we were supposed to make subtle movements to disrupt that center line, with the goal of dispelling the opponent's focus and energy, kinetic and otherwise, for long enough to move in for a strike. With katanas, it was easy to see how quickly a small loss of focus could open you up to a fatal strike.
The hosts of the show, however, interpreted this short bit of discussion about energy as kinetic energy transfer, showing kinetic transfer with techniques like the one-inch punch, etc. Biokinetically, this makes sense...at karate I think a lot about how to generate power through precise muscle control (mass is not particularly variable, but speed can be trained). But because more often than not there are not a lot of other high-level students, we don't get to explore the other side in practice, other types of energy transfer which were integral to the original martial arts systems. Energy transfer and redirection is a part of the techniques that I've studied, and re-applying those principles of transfer to earlier techniques has been enormously productive. Yet even kinetic energy is not directionless in my experience. In my religious studies work, I think a lot about intention and interpretation, and I think similar ideas apply to physical praxis, especially somewhat ritualized practices such as kata. Not being a particularly large man, I'm aware of the importance of precision and target recognition. When sparring with students who are larger than me, and lower ranked, I have noticed that the haymaker is very popular; kinetically, this makes sense. Swinging the arm all the way around makes for a far more powerful strike. But they very rarely set up the strike well, which is equally important - anyone with a reasonable amount of experience can see a haymaker coming from a mile away and avoid or block it. And when that intention is clear, it's easy to provide distraction, dispelling that energy in a way that isn't physical alone. A short jab to certain muscle groups or nerves will stop or drop an opponent who has committed that much power...this isn't using force, it's using awareness. And I think that's what the hosts of the show missed. Physical kinetics is not the reason the one-inch punch works, at least not exclusively. There's a certain amount of intention and understanding that makes the physical act possible, and without understanding those causes, the understanding of the greater phenomenon is faulty.
These ruminations might have been because of reading Braudel recently; his plea for cooperation between the human sciences resonated with me. But without trying to get into a polemic, I think the same problems apply to a lot of the work I do. In martial arts, I think most students who stick with it and devote themselves to it come to an understanding, conscious or not, of other forces at work besides just the martial; the 'art' portion of the term is just as important, if not more so. And in my academic work, when I mention that I study religion, people want to talk about Islam or Huntington's 'clash of civilizations' or what have you (I'll reserve comment...). Yet none of those things come close to what I consider to be the real import of religious studies work, which is placing other systems of thought, other human endeavors alongside our own experience in order to foster dialogue. Once again, Braudel's emphasis on models reather than narratives was a breath of fresh air to me, even though he wrote the articles that comprised "On History" over half a century ago. A model is contructed from the various contributions of the human sciences in order to explain a phenomena, but it is always susceptible to revisions as more information and analysis becomes available. A historical narrative imposes on events and puts them into a framework that is not nearly as malleable, and that has repercussions. Even with narratives that aren't as extreme as nationalist explanations of history, it can trap us into making predictions based on a story rather than on the actual circumstances. This isn't to say that we can or should ignore narrativizing, because that's neither possible nor desirable. Indeed, models become narratives the moment we utilize them for anything beyong their component elements. But it does mean that we should question those narratives and be receptive to other explanations of events or phenomena.
From kinetic energy to Braudel in four paragraphs...if that doesn't demonstrate the way various forces are inherent in any phenomenon, requiring multiple levels of explanation, I don't know what does.