why are the bubbles round?
105492
Bubbles are round because doe to the given volume (the air you give it), a sphere (round) will give the optimized (greatest) surface area for the given volume.
1024555
A quick test is to set it on a "level" surface. See where the bubble is and then turn the level 180 degrees. the bubble should show the same degree of level. \n\nWith a precision level there are usually multiple marks rather than just two so you should be able to see even a minor lack of levelness on a surface and that should be repeated when you turn the level 180 degrees.\n\nI do the same thing with my cheap carpenters level when I use it to be sure it isn't out of whack.
906892
Bubbles symbolize cuteness.
5245
The suds in your bubble bath aren't entirely white. They do have a slight amount of color from the soap, but it's so small it's hard to notice. Actually, all things that create bubbles experience this same phenomenon. Beer, soda, and detergents all produce bubbles that are considerably lighter than the liquid they came from.\n\nBubbles are composed of a thin spherical film. The film is both translucent and reflective so some of the light that is hitting the bubble is absorbed, but most is reflected. The small amount of light that is absorbed gives the color of the bubble, but the majority that is reflected takes the color of light around it which is usually white.\n\nWhen you mix any color with white it gets lighter. Because soaps have only a little dye they are easily diluted. Colas however have a dark caramel color, which is why their bubbles appear tan.\n\nTo alter this you can replace all your light bulbs with green tinted ones and your bubble bath will turn green.
1119841
The bubbles are actually bubbles of steam, not air.  Because of tiny bumps on the bottom of the pan, there are spots where the water gets hotter than in other spots, and it turns to steam bubbles.  These bubbles collect together and float up to the surface, where they "pop" and actually cool the water down a tiny bit.  This cooler (less hot) water sinks to the bottom, gets heated up into steam again, bubbles form, and so on.  So the bubbles won't boil out before the water is gone, because it's the water itself that's making the bubbles.
253045
Water often contains a great deal of suspended air - but it is not visable as they are very small.  When you shake the water, the little bubbles start bumping into each other, and if they are big enough, you will see them.  If they are big enough to see, they will float to the top and pop!\n\nIf you have an aerator on your kitchen sink you can get lots of bubbles from shaking water.  Water that has sat in a bottle undisturbed for a while has most of its bubbles gone.
72626
Of course they can, especially because you say bubbles.  When you blow a single bubble and set it free in the air it will become spherical because of the surface tension of the film.  The same thing happens with rain drops.\n\nBut if you blow many bubbles together that land in a pile or within a container none will be spherical and many will actually share their films.
557311
hmmmm, my bubles have all the colors of the rainbow.\njust need to look closely. a beauty, those colors are slowly flowing over the surface of the bubble, ....then i pop the bubble, muahahahaha.
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.
114224
Only bodies with a large gravitational mass are round. There is enough gravity to pack it more tightly and this combined with roation of the object forms a round shape. Smaller objects like asteroids, comets and small moons often have irregular shape because there was not enough gravitational mass to compress the object into a round shape
355197
because the foam is white
1127230
No, it's a nice idea though. As the balloon rises the pressure outside it will drop causing the gas inside the balloon to expand until eventually the balloon will pop. Sorry to burst your bubble as it where; I love the idea of space being filled with these multi coloured balloons though :))
266592
There are a whole slew of reasons why manhole covers are round.  The covers are made of cast iron and so are very heavy.  By making them round they can be rolled rather than carried from place to place on the job.  The tunnels leading to the covers are almost always round, for structural as well as ease of digging reasons.  Since the tunnels are round it made sense to make the cover round.  If the covers were square, rectangular, etc. the cover would have to be in a particular orientation in order to fit the hole.  In addition the cover could fall into the hole if it were square or rectangular (or any other shape than round).  Finally it may boil down to "that's the way they always been made" kind of thinking.  Someone started making them round when they first started and everyone else followed
349292
They are round because that shape can withstand the most amount of pressure without exploding/collapsing. The shape is also called a pressure vessel.
856454
no idea....but it could probably be cause all the sound gets sqeezed near the water surface like when you through some dough on the wall...and the ripples combine to increase thier amplitude and hence volume
6350
If it has an air bubble then tie a string around the upper end and whirl it around over your head.  The force should make the bubble rise.
662627
Aeration of the liquid causes foam, but all liquids do not produce white foam. If you blow bubbles in white milk, and compare them to the bubbles that are produced when air is blown into chocolate milk, there is a tint difference. The foam that is produced on liquids just appears to be white, but there is a slight difference.