On Sat, 22 Apr 2000 [EMAIL PROTECTED] wrote:
> Wanted: I am looking for examples from science, engineering and
> everyday life where if you need to add a substance, it is advantageous
> to transform a waste material to obtain that substance. Please
> respond by sending an e-mail to [EMAIL PROTECTED] .
Bemusing question.
Is there any substance for which the proposition is NOT true?
If you have a counterexample or two in mind, I'd be interested.
Although perhaps the question rests on your definition of "add".
I'd been presuming you meant "obtain"; but perhaps you meant
something else.
-- DFB.
Donald F. Burrill [EMAIL PROTECTED]
348 Hyde Hall, Plymouth State College, [EMAIL PROTECTED]
MSC #29, Plymouth, NH 03264 603-535-2597
184 Nashua Road, Bedford, NH 03110 603-471-7128
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