James Newton, Host wrote:
> But Google doesn't seem to know how to do that conversion. Any ideas? I seem
> to be too stupid to figure it out today.

Sure it does. Here's the link to get the conversion constant - note the 
lack of any explicit calculations (save for the inverse - take it out 
and reverse the output units for the inverse conversion constant); 
Google figured the units out itself.
http://tinyurl.com/2rklt7
(where 8.96g/cm^3 is the density of copper)

Here's how you go one way:
http://tinyurl.com/2ubxn8
And here's the other:
http://tinyurl.com/2udow5

Of course, you have to input the density of copper with proper units, 
but you can't expect Google to assume you're dealing with copper!

As an aside, I've found Google to be a very good aid when doing 
technical calculations like these, not only because it auto-handles 
units (which is useful but can get strange sometimes), but because if 
you mess up the units anywhere it will either not return an answer or 
give out the wrong units.

-- 
Hector Martin (hector@marcansoft.com)
Public Key: http://www.marcansoft.com/marcan.asc

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