Sunday, December 16, 2007

tension

I used to take this class called CIV102. It was an introduction to bridges taught by this New Zealand professor who loved bridges. For some reason, something that was hard for me to wrap my head around was the idea of tension. I don't really know why. If something is being pulled in two different directions (or in one direction, but held by something stationary, so if you think about reaction force, I guess, it's the same). But in the questions, we never actually talked about how that force was being taken care of - we talked about stretching, and tension limits, but what is actually going on in that material to transfer force.

So, of course, this is a metaphor, right? My dad told me a couple weeks ago that, like guitar strings, people need to be under tension in order to make music, but recently, I find myself stretched in too many directions.* It's already hard to be a good friend, but it's even harder to be a friend to more than one person. And then, of course, there's the question of the limits of your resources, and then "doing the right thing" becomes a more complicated issue. Selflessness is good, but if you can't actually do it, maybe you shouldn't even try, because if you do try and do a selfless act, and aren't actually selfless, you'll end up bitter and angry or sad and unappreciated. Maybe there should be a rating on good deeds before you do them - like a ski hill, that way you'll know what you're getting into and can decide whether you're up for it. There can be the bunny hills where the task is easy to do and you gain from it too. Next level would be something hard, but it makes you feel really good to do it, and you're very appreciated. The black diamonds would be hard things that are not remotely fun and no one notices.

How do you practice?




*If I was stretched in every direction, I would be under pressure, right?

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