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From: mark@NOHAM.otford.kent.btinternet.co.uk (Mark Kent)
Newsgroups: alt.ascii-art
Subject: Re: A question for those interested in physics...
Date: Wed, 27 Mar 2002 21:23:23 +0000 (UTC)
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Peter K�hlmann <Peter.Koehlmann@t-online.de> espoused:
>Elizabeth wrote:
>
>> David Squire wrote:
>>> 
>>> "Dr. Rev. Chuck, M.D., P.A." wrote:
>>> 
>>> > David Squire wrote:
>>> > >
>>> > > "Dr. Rev. Chuck, M.D., P.A." wrote:
>>> > >
>>> > > > none wrote:
>>> > > > >
>>> > > > > As far as comparing them to rain... Lead is a lot heavier than
>>> > > > > water and will come down quite a bit faster,
>>> > > >
>>> > > > Nope.
>>> > >
>>> > > If its in a pellet the same size and shape it will. The force due to
>>> > > air resistance will be the same in both cases, whereas the force due
>>> > > to gravity will be higher on the lead pellet, due to its higher mass
>>> > > - it is more than 11 times more dense.
>>> >
>>> > Does the name "Galileo" ring a bell?
>>> 
>>> Does "in a vacuum" ring a bell?
>>> 
>>> Galileo's result is true only in the absence of air resistance. You can
>>> try it at home: drop a feather and a ball bearing from the same height
>>> and time their descents.
>>> 
>>> D.
>> If you ring a bell in a vacuum does it make a sound?
>> Elizabeth
>
>Sure it does. You just must be somehow attached to it to hear it.
>The absence of a transport medium is just that, no way to *transport* the 
>sound, which is still there (at the bell)
>

Ahhh - that's an interesting logical conundrum.   It's a question of how
you define sound.  If you say 'does a bell vibrate in a vacuum after
being hit" then the answer is certainly yes.  If you say 'does it make
a sound'?  then I think that depends on whether you have something
else to transmit the vibrations.  

Define sound, then you have the range of answers available.


-- 
            |  Mark Kent   --   Take out the ham to mail me.  |
Revolution, n.:
	A form of government abroad.