Bubbles That Can Last Over a Year

Remember blowing bubbles? There were some that would pop as soon as they were made and some that seemed to float until they got too high up. What if you were able to blow a bubble that could last over a year?

via WIRED

Scientists are also interested in extending the longevity of bubbles. Bubbles naturally take on the form of a sphere: a volume of air encased in a very thin liquid skin that isolates each bubble in a foam from its neighbors. Bubbles owe their geometry to the phenomenon of surface tension, a force that arises from molecular attraction. The greater the surface area, the more energy is required to maintain a given shape, which is why the bubbles seek to assume the shape with the least surface area: a sphere.

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