Math Is Fun Forum

jk22

Member

Registered: 2010-06-14

Posts: 33

Bubble Sum

Hi all,

I have a small problem I would like to solve :

Suppose 2 same soap bubbles on a table :

a) glued at each other with a plane separation, what is the volume and shape ?

b) if the separation is made away, forming a unique bubble, what is the final volume ? (note : Vfinal>V1+V2)

Bye.

John E. Franklin

Member

Registered: 2005-08-29

Posts: 3,588

Re: Bubble Sum

a.)  I kind of imagine two over-sized quarter spheres
attached to each other.  I would say they each are 29%
spheres, but look rather like right angled walls: the floor
and the plane of attachment and then they both go upward
a little into the air from the top of the meeting point.

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igloo myrtilles fourmis

jk22

Member

Registered: 2010-06-14

Posts: 33

Re: Bubble Sum

Hi John,

thanks for your info. Did you get 29% from a calculation ? I have a video about but I can't up load it, maybe it's seeable at : https://docs.google.com/leaf?id=0B9pGxyM9yy2fNDMxMjgyYWQtNjQ0Ny00NGYzLTllOTUtMzFkNmIwNGY1MTky&hl=en

Last edited by jk22 (2010-08-15 08:35:10)