[Phys-L] Re: Buoyancy challenge activity

[betwys1 at SBCGLOBAL.NET (Brian Whatcott)]

At 07:12 PM 10/11/2005, you wrote:
> At 04:50 PM 10/11/2005, Hassan, you wrote:
> > Hi all!
> >
> >                                                 ALUMINUM FOIL BOAT
> >
> > Someone asked me for help with the following challenge pertaining to
> > buoyancy:
> >
> > "You are given a square piece of aluminum kitchen foil.  You have to
> > make a boat out of it. The boat that holds most number of marbles before
> > sinking wins."
> >
> > I made one suggestion to the person but haven't got the feedback
> > yet...(may be he lost... hehe)
> >
> > Any thoughts about it?; anyone tried it?
> >
> > ~ Hasan Fakhruddin

I placed 0.871 kg of 15 mm diam glass  marbles in a floater folded
from a square of aluminum foil of 0.02 mm thickness and 0.24m on
  a side, at which point, it swamped on one low side.
Surprising!


Brian Whatcott    Altus OK    Eureka!