Why Bubbles Are Round
Bubbles are similar to balloons. Both the balloon's latex outer shell, and the bubble's skin of molecules try to hold the gas inside them in a structure which is most stable and has the least possible surface area. As it turns out, the geometric form which fits the criteria is not a cube or a pyramid or a cylinder... it is, you guessed it, a sphere! Hence, bubbles are always spherical. Scientists refer to them as minimal surface structures. |
An amazing exception to the rule...When a normally round bubble, here filled
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