cummings66

03-06-2008, 17:17

OK, here goes.

Reading the ADM E-zine Issue 2 article Diving into the Metric System makes me think a few things.

One, I can do the math much easier when it comes to air consumption, tank pressures left, etc. However right now the metric system is Greek to me. I know what the terms are, I know roughly how they convert to our system, etc. But I do not think in metric which appears to be the point of the article. To be effect you've got to think in metric, so that distance is 40 meters deep for example, not what I'd call 120 feet which is how I'd convert it and I know in reality that it's really deeper than 120 feet, but for visualization that's the number I would choose. To be effective I've got to have a feel that 40 meters is so far, I've got to see it in my mind in those terms to mean anything to me.

They suggest you learn to think native metric system, forget about converting things in other words.

That brings up this question and my concern. Living here in the states I don't know if it's possible to learn to think metric, have you learned to do so and what tricks did you use to help? Do you now think of distances metrically when driving a car, or looking across the yard or do you still convert? Is it even practical for me to think metric?

I see the benefits to diving, it's much easier. I can do the math in my head and be pretty accurate compared to the guesses we do on the fly with our system. Take our tank conversion factors to psi as an example to see how much volume we have at a certain psi in a certain tank. Much easier in metric if I can learn to think metric, but not as easy in our system.

I can do ours from memory, but I use paper and pencil, I think I can learn to do metric without paper and pencil and be more accurate. However, is it practical?

Reading the ADM E-zine Issue 2 article Diving into the Metric System makes me think a few things.

One, I can do the math much easier when it comes to air consumption, tank pressures left, etc. However right now the metric system is Greek to me. I know what the terms are, I know roughly how they convert to our system, etc. But I do not think in metric which appears to be the point of the article. To be effect you've got to think in metric, so that distance is 40 meters deep for example, not what I'd call 120 feet which is how I'd convert it and I know in reality that it's really deeper than 120 feet, but for visualization that's the number I would choose. To be effective I've got to have a feel that 40 meters is so far, I've got to see it in my mind in those terms to mean anything to me.

They suggest you learn to think native metric system, forget about converting things in other words.

That brings up this question and my concern. Living here in the states I don't know if it's possible to learn to think metric, have you learned to do so and what tricks did you use to help? Do you now think of distances metrically when driving a car, or looking across the yard or do you still convert? Is it even practical for me to think metric?

I see the benefits to diving, it's much easier. I can do the math in my head and be pretty accurate compared to the guesses we do on the fly with our system. Take our tank conversion factors to psi as an example to see how much volume we have at a certain psi in a certain tank. Much easier in metric if I can learn to think metric, but not as easy in our system.

I can do ours from memory, but I use paper and pencil, I think I can learn to do metric without paper and pencil and be more accurate. However, is it practical?