[Phys-L] Re: Buoyancy question

[herbgottlieb at JUNO.COM (Herbert H Gottlieb)]

I'm having trouble understanding Clement's response.

On Tue, 07 Dec 2004 23:30:53 -0600 John Clement <clement@HAL-PC.ORG>
writes:
> I believe he is referring to the fact that a needle if gently placed
> on the surface floats.  This is a surface tension effect and not a
buoyancy
> effect. Of course if you add a drop of detergent it doesn't work.
>
> John M. Clement
> Houston, TX
>
> > Greetings everyone!
> >
> > I have a question pertaining to buoyancy phenomenon:
> >
> > What's the condition that a piece of iron released gently on the
> surface of water sink? Ignore surface tension.
> > Thanks,
> >
> > Hasan Fakhruddin
> > Instructor of Physics
> > The Indiana Academy for Science, Mathematics, and Humanities
> > BSU
> > Muncie, IN 47306
> > E-mail: hfakhrud@bsu.edu


Herb Gottlieb from New York City
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