When I was looking into hexagons in nature, I often came across information about bubbles. It seems that there is something called Plateau’s law, and when adjacent bubbles, such as soap bubbles, form a hexagon. Small bubbles expand and the boundaries between adjacent bubbles become like the edges of a hexagon. The shape is strange, but the bubbles themselves seem to be an interesting physical phenomenon.
It depends on how you define foam, but in the sense that it contains air bubbles, it seems that liquid foam, bread, and pumice are also included. In the sense of foam, bones are also included. I guess the cells expand like bubbles.
https://ce-akimoto.com/archives/636
It seems that creatures that make good use of bubbles are often found near water. Spiders that make underwater nests carry bubbles around as air tanks, and goldfish and frogs make bubble cradles to prevent drying out and to hide their eggs so they won’t be found by predators.
https://www.jinro.co.jp/munsell/special/40.html
Also, if we allow for the expression “bubbles” to mean not only that there is air inside, but also that a viscous film forms the interface, then cells, rock composition, and metal crystals may have expanded into bubbles and then stopped growing. It seems that large crystals form when rocks and metals cool slowly.
https://kunibiki-geopark.jp/geo-study/2019/03/01/
We can think of bubbles as something that separates the outside from the inside. There is a theory that life began as something like a round bubble with a calm inside, surrounded by a violent outside. It may be a world wrapped in a thin membrane.
https://diamond.jp/articles/-/311674
If we expand the interpretation of bubbles further, there is a theory that the universe is also made of bubbles. The image of a bubble is one that spreads outward from a single point on the inside. And the solar system is said to be in the middle of a giant bubble called a super-bubble. That’s a bubble on an incredible scale.
https://www.toibito.com/toibito/articles/
https://www.newsweekjapan.jp/stories/world/2022/01/3-295_1.php
When we think of bubbles, we think of a fleeting image like a soap bubble, but in my personal interpretation, if similar shapes appear at both the micro and macro levels, it must be a physical phenomenon close to basic principles. It’s amazing to think that the countless bubbles that exist each form an interface and have a certain kind of world inside. Bubbles are amazing. The Earth is amazing.
