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Re: Forces w/o third-law partners???????



At 6:38 AM -0400 10/21/99, John Denker wrote:

d(momentum in a region)/d(t) = - net momentum flowing across
boundaries of the region.
i.e.
d(P)/d(t) = - div P

This is the 100% standard formulation of a *local* conservation law.

ooooh, ooooooooh, this sounds DANGEROUSLY like 'reification' of momentum.

(i.e. I LOVE it!)

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