Why can't bubbles be any other shape?
820312
Because air preasure is distributed evenly and in all directions. Notice that if you blow on a bubble it changes shape temporarily, but only as long as the preasure on it is from one side. After you stop blowing it returns to perfectly round.
422975
If flash frozen a bubble can freeze.  A bubble can also exist within a frozen liquid but the bubble its self is then not actually frozen.
1158293
Bubbles aren't white. Check em out, they're all kinds of different colors like a swirly rainbow.
524282
There are two possible reasons:\n1. A non-round object has higher surface area than a round object for same volume. This in turn could lead to higher reaction rates in portions that are not round (projections etc), finally leading to the element appearing round.\n2. The surface tension of water and buoyancy keep the element on the surface at the cost of local depression in the surface of water. Surface tension tends to make the depression round, which could make the element appear round.
222728
All those other shapes would be more prone to fall into the hole.  They will have a short side compared to the hole.  No matter how you drop a circle, it is alway the same size.  And have you ever tried to roll a retangle.
580033
You've probably seen the pictures of a grid with a giant funnel extending infinitely downward.  That's not the shape of the hole itself, but a map of the curvature of space near the singularity.  The singularity, or "hole" itself is a point of infinitely large density and infinitely small size.
1044842
simply round... or shall i say spherical objects contains the most volume in the least surface area possible, in other words, the surface area of a cube is larger than of a sphere if they have the same volume and so on and so on, for an example in the case of an air bubble and a water drop, the surface tension effect tends to decrease the surface area thus creating a sphere, same thing with planets but here, gravity also has a roll to contain as much volume as close as possible and as you know planets were created from molten rock so the surface tension also played the same roll of decreasing the surface area here too...
321242
i had already asked this question. it's for sprite zero. and the answer is still no.
428530
I agree with answer one... depends on the size of the container\nThe spherical shape has the minimum surface area for a given volume (in this case for a given number of molecules, since each molecule occupies the same amount of volume).\n\nThis is why a drop of water is spherical. If we distort the drop, it “wants” to come back to its spherical shape, and the force pulling it back is what we call surface tension creating a meniscus. \n\nThis tension acts in a similar way as the stretched rubber in a balloon: if we distort the balloon and then release it, it comes back to the spherical shape.
459271
Not all tvs are.  Ours is rectangular.  TVs come square and rectangular.  Why aren't there other shapes?  If there is a reason, I sure couldn't find one.
130096
aRjuN, you are wrong, because balls are round, spherical, and they leave space between them, that can't be occupied.\n\nThis problem is so hard, you almost can't solve it. It takes maybe millions of calculations to find the best way to put the balls inside a container, in order to fit as many balls as it could.
885093
If the inside is pressurized, the shape has to symmetrical in such a way, that will make the internal pressure distribute itself more or less equally. Else the can may burst where the pressure is more.\nAlso the shape has to have a logical design.\nFor the sake of argument, let us consider others shapes.\n\nSpherical:: well that's not possible. Not very easy to hold !!\nBut yeah, from the physics point of view, its the ideal.\n\nCube and Cuboid :: The corners present can cause unequal pressure distribution, also the strain present may give rise to corrosion.\n\nElliptical:: no comments !!
735301
For a bubble to exist, the surface tension of the bubbles surface (interior and exterior surfaces) is in a delicate balance with the liquid sandwiched between the two surfaces. When you touch the surface of a bubble with something dry, it can, though doesn't always, disrupt the surface tension allowing a hole to form. Once a hole forms, the air, which is under a light pressure, rushes out as the surface tension seeks to reduce the surface area or the liquid forming the bubble - collapsing the bubble.
164977
If you take seven pennies and lay them out flat, then bunch them up, you will see that with one penny at the center, exactly six pennies will fit around it.  In the case of bubbles, if you have several bubbles of the same size, they will natural fall into a position that allows them to fit most tightly together.  Bubbles on top layers will either pop or fall into gaps, and this will continue until the tightest packing is acheived.  For round bubbles, this will be the sort I described.  Put a whole bunch of pennies flat on the counter, and pack them as near together as possible without over-lapping--you'll eventually find that every penny (except those on the edge) is touching six other pennies.\n\nNow with bubbles, the sides of each bubble will merge with that of those it touches in order to reduce surface tension (a thermodynamically unfavorable association between different phases, like water and air in this case).  That merging means that while each bubble will be touching six others, the sides will all be flat.  Now each of your bubbles represents a packed hexagonal structure.
1152351
A bubble, even at the deepest levels of the ocean is still a gas.  It is lighter, or more buoyant that the liquid it is in.  At the bottom of the ocean the bubble is really compressed, and squeezed down to a tiny size.  As the bubble rises, it will get bigger, as the pressure decreases.  You can see this for yourself in a swimming pool.  Go down to the bottom and blow out  some bubbles, watch them expand as they rise to the surface.\n\nAlso the bubble is being squeezed from all sides, not just down.  That is how pressure works, all directions equally.
799446
electrons can't line up in a plane they wouldn't all fit... unless it was like a big 747... or one of those military airbus things... and by 3d do you mean 2 spacial dimentions + time or 3 spacial dimensions? cause we already live with 3 spacial dmension (4 including time)
276632
Gosh!  They are unlimited.  A simple cup, a simple cylinder, a funnel. those are just some symmetric shapes.