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Old 06-19-2006, 03:30 AM
Phil153 Phil153 is offline
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Join Date: Oct 2005
Posts: 4,905
Default Re: Again with the Force

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Here, you say "The force primarily responsible is my throw, as it's the only thing that gave energy to the dice." What is the nature of the force associated with your throw?

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You missed the point completely on that example. May as well say the strong and weak nuclear forces are the forces responsible for everything on Earth as without them the sun wouldn't create carbohydrates and we wouldn't be throwing dice.

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You are focused on who is right and who is wrong. I'm looking for understanding, not just the answer. I'd rather not let my ego get in the way, but your tone makes that difficult.

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This isn't about ego. This is such an unbelievably simple phenomena to even a layman that the replies in this thread amazed me. The fact that a physics teacher quoted the second law as being relevant astounded me. The simple answer is this: To a very good approximation, gases are like billions of tiny balls spread far apart relative to their size, each with different velocities. At room temperature they travel at high speed. If you look at it that way, it's exceedingly obvious why diffusion occurs and why you can very quickly smell perfume across a room. And why particular forces aren't relevant to the basic mechanism of diffusion. They teach the kinetic model of gases in 8th grade and it should be common knowledge to anyone who's reached high school.

Anyway, I apologise for being amazed.
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