myserendipities:

“Hidden away, deep within a forest in central Africa, is something quite special. But the Pollia berry’s name doesn’t quite do it justice, because this thing is shiny. In fact, it’s the shiniest living thing in the world. These fruits, which look a bit like something you might hang on a Christmas tree, owe the title to their microscopic physical structure. In fact, it might shock you to hear that they contain no blue pigment whatsoever. The surface of the berries is actually made of four layers of thick-walled cells, each layer itself containing more layers made of cellulose fibers. All those fibers run parallel in their own layer, but crucially the layers are all slightly rotated relative to each other, forming a spiral when you look from the top down. That means that when light hits the structure, some light is reflected by each layer of fibers in such a way that the light bouncing back is amplified—a concept known as constructive interference—to produce remarkably strong colours. The result is very shiny—shinier than any other living thing on the planet.”

myserendipities:

“Hidden away, deep within a forest in central Africa, is something quite special. But the Pollia berry’s name doesn’t quite do it justice, because this thing is shiny. In fact, it’s the shiniest living thing in the world. These fruits, which look a bit like something you might hang on a Christmas tree, owe the title to their microscopic physical structure. In fact, it might shock you to hear that they contain no blue pigment whatsoever. The surface of the berries is actually made of four layers of thick-walled cells, each layer itself containing more layers made of cellulose fibers. All those fibers run parallel in their own layer, but crucially the layers are all slightly rotated relative to each other, forming a spiral when you look from the top down. That means that when light hits the structure, some light is reflected by each layer of fibers in such a way that the light bouncing back is amplified—a concept known as constructive interference—to produce remarkably strong colours. The result is very shiny—shinier than any other living thing on the planet.”

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    Yes, but you won’t enjoy it. "The fruit isn’t poisonous, but it isn’t exactly edible either. It may look like a juicy,...
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