[PW] Re: Math question

[Michael Caricofe]

It would be quicker (and only use one graduated cylinder) to start with a
full graduated cylinder, submerge the light bulb, then note how much water
remains.

Of course, this more elegant solution is a bit messier.

Michael

On 9/23/06, jschmitz at qis.net <jschmitz at qis.net> wrote:
>
>
>
> By the way, there's a less destructive solution to the problem.  Let's say
> the
> bulb will fit in a 100ml graduated cylinder.  Take the bulb, hold it in a
> clamp
> in the a graduated cylinder by the metal part, upside-down, so that the
> top edge
> of the glass part is lined up with the 100ml (or other even measurement)
> mark.
> Take another graduated cylinder and fill to 100ml.  Pour into the other
> cylinder until the water reaches the 100ml mark.  Note at the volume of
> the
> remaining water in the second cylinder.  Subtract this from 100ml to get
> your
> answer.  This assumes that the glass is thin enough to be disregarded in
> your
> calculations, which would depend on the bulb.
>
> -JoAnne
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