Monday, March 20, 2006

Being and becoming

Sometimes I wonder about the experience of blindness. It is not something easily imagined; I can close my eyes and wander around my house, counting steps up to the second floor, trailing my hand along the wall to my door at the end of the hallway, tapping my fingers on the edge of my bed and then letting go, stepping out across the carpet, trusting that I didn't leave my shoes in the middle of the floor, reaching until my hand meets the edge of my dresser: and then there's a slight feeling of relief at having completed my journey without bruising my shins along the way.

Even when I do this, as I move through the house with my eyes closed I am picturing the walls and furniture around me, drawing on my visual map of the rooms for navigation. My mind's eye pictures my desk where I left it this morning, and lo, my hands find it exactly where I imagine it to be.

I do this sometimes in the morning; I fix myself a cup of coffee and, if I'm feeling brave, close my eyes while I'm still in the kitchen. Holding my coffee cup carefully in one hand, up at the level of my chin so as to not accidentally knock it against an out-of-place chair, I feel my way out to the foyer with my free hand, find the doorknob and pull the door open, step down onto the porch, and close the door; then I edge forward, feeling with my feet for the edge of the porch, and carefully step down, and sit gingerly on the edge of the porch, every movement controlled and slow so I won't lose my balance if one element in my surroundings is not exactly where I think it is.

And still I can picture the journey, though the chairs around the kitchen table provide some excitement, because I'm never sure where they are. I run into them frequently. Sitting on the porch, I can picture the front yard and the houses nearby; I picture cars on the street where they are habitually parked.

All this, the things I picture because I have seen them before, they fall into place as in the world of "being": this is the way I imagine things to be. I take it on faith that Colorado has not cracked in half, that there is not, in fact, a new Grand Canyon in place of the houses across the street. Immediately, I am only aware of the elements in my environment that I come into direct contact with: my coffee cup, the kitchen chairs, the front door, the porch, and the tiny square of sidewalk on which my feet are resting.

I can't be sure that the trees in the yard are actually there until I hear leaves rustling in a breeze; this enters into the world that is "becoming," the world of action and movement. I hear a car driving down the street, tracking it from left to right as it passes the house. The front door opens behind me; someone steps onto the porch.

"What are you doing out here?" I recognize my mother's voice.

It's a good question. I'm enjoying my coffee; I'm paying attention to the feel of sunlight on my skin; I'm imagining what I might see if I weren't temporarily blind.

When I open my eyes, I see one of our neighbors across the street, weeding a flower bed. I can't hear her over there; until now, she didn't exist in the world as I was aware of it. Only now does she enter into the picture.

There are other things I missed, too, because they weren't "becoming" in any tangible way.

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Thursday, March 02, 2006

Has anyone seen my brain?

... because it seems to have sprouted wings and taken off sometime in the last 30 minutes.

It can't have gotten far, right? How fast do brains fly? And what is the coefficient of lift for brain wings? What is a brain's lift-over-drag ratio? What kind of turbulent flow results from brain aerodynamics?

I can't answer these questions; I don't even know if my brain decided to wear a safety helmet.

I was doing fine up until a little while ago. I've been holed up in the lab all afternoon, so about fifteen minutes ago I took a walk upstairs to my professor's office (the one my subconscious believes is partly mechatronic) to pick up my old homework. And when I got back and sat down at my lab station, I couldn't do any more work. I think the crafty old brain took the opportunity to escape out a window upstairs when I wasn't paying attention.

I sure hope it comes back before class tomorrow.

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Wednesday, March 01, 2006

An odd side note

Have you ever dreamed that one of your professors was some kind of bionic-experiment-turned-reluctant-hero?

I had this kind of dream for the first time last night. And it's been stuck in my head all day. Then I went to class with this professor and couldn't help but picture the good doctor dashing around in a tan trenchcoat saving hapless citizens.

From what subconscious depths does my brain dredge this kind of stuff?

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Assigned seating

It won't save your life, but it'll make somebody's job easier.

My topics have been rather middle-of-the-road lately. Time to raise a few eyebrows.

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So, really, assigned seating, specifically on commercial airliners. Besides eliminating the ridiculously long lines that would appear in airports if people thought an earlier arrival would get them a better seat on the plane, it helps crash investigators determine why the plane crashed.

The so-called "human wreckage" is particularly important in investigating when the airplane tanks in the ocean, because the structural wreckage itself, along with the black box, may be particularly difficult to recover. Bodies, on the other hand, float.

If a passenger was in his or her assigned seat at the time of the crash, the location, type, and severity of injuries found on the body can be documented; when you perform this analysis on a group of bodies and place each one into its proper context, the assigned seating chart, you have a pattern.

Without going into what some people would find to be unnecessarily graphic detail, I will say simply that the various injuries found on recovered bodies and/or fragments, when analyzed to form such a pattern, are a fairly good indicator of the cause and ensuing events of the crash.

So remember - next time you fly, stick to your assigned seat; it might not affect your well-being in the long run, but if you crash it could help tell the world why.

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