[meteorite-list] Hammer Definitions

[Darren Garrison]

On Sun, 15 Mar 2009 12:35:29 -0600, you wrote:

>Is a baseball field a human artifact?  The bases on the field are, so are
>the bleachers, chalk lines on the field, etc, but is the grass and dirt?  If
>the grass and dirt are, then so are all of the house lawns across the world
>since humans planted or landscaped them.  

Yes, every place kept with a cover of grass which would, when left to nature,
revert to forest in just a few years is an artificially maintained, unnatural
human artifact.