Scott Gardner wrote:
>
> Also,
> I give you two cylinders, both identical in appearance and weight.
> One is made of aluminum, and is solid. The other is made of gold,
> and has the center hollowed out (outside surfaces are unbroken,
> however.) Both are painted an identical non-conducting British
> Racing Green (obligatory lame attempt at LBC content).
> Performing only non-destructive testing, with materials/methods
> available in the typical household, how can you tell which cylinder
> is which? Tapping on the cylinders with a mallet produces identical
> sounds.
> Scott
The top one - I'm not even gonna guess...However, for the two-cylinder
question, the answer would be to drop them both in water, correct? The
hollow gold one should float. Or, should I float on over to the science
building and bone up?
--
Michael S. Lishego
St. Andrews Presbyterian College
Elementary Education Major,
English Minor, Class of 1999
R.A. of Winston-Salem Hall
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