Why are bubbles shaped like speres?

Question

Why are bubbles shaped like speres and not prymids or cubes?

Answer 1

A sphere is the form with the least surface area. Bubbles are held together by the surface tension of the film which surrounds the bubble. The molecules attract each other and "hold together" to keep the film from popping. If there were corners on a bubble there would be uneven attractions of the film molecules and the whole thing could let go.

In grade school you and your class were told to join hands and form a circle. Did you ever try to hold hands and form a square? It is really hard to do. The circle is easier because the "pull" on each child's arms is equal. That is the same idea behind the spherical shape of a bubble.

Answer 2

It is related to basic air pressure - the air pressure inside the bubble is all trying to push out at the same rate. Since the sphere is the only shape that has the outside the same distance on all sides from the center this is the shape they take.

If, for some reason, on area of the bubble surface was weaker, it would be larger in that area and not in the same shape, but because the surface area is not very thick it would not be likely to happen.

Answer 3

That shape is the minimum surface area for the largest volume and distributes forces on the surfaces evenly. Corners are impossible in soft bubbles.

Answer 4

To minimise the surface area

Answer 5

b'coz of surfacetension.sphere surfacearea is minimum compared to other shapes.so to minimise the surfacetension bubbles attain spherical shape

Answer 6

heloo!!! gatinha brasillllll.

Answer 7

why are you worried about this?