Soap Bubble Structures by Kym Cox.

Soap Bubble Structures by Kym Cox.
Bubbles optimise space and minimise their surface area for a given volume of air.
This phenomenon makes them a useful tool in many areas of research, in particular, materials science and ‘packing’ – how things fit together.
Bubble walls drain under gravity, thin at the top, thick at the bottom, which interferes with travelling lightwaves to create bands of colour.
Black spots show the wall is too thin for interference colours, indicating the bubble is about to burst.
Photograph: Kym Cox/2019 science photographer of the year/RPS
Source: RPS 2019 science photographer of the year – shortlist | Science | The Guardian

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