BBC Science Focus Magazine

MATTER MADE MAGIC

ALGORITHMIC ART

Nature takes advantage of the way that wood responds to its environment. We see this when a pine cone falls from a tree and its scales begin to peel open as it dries out, allowing it to release its seeds. It’s a result of the wood’s hygroscopicity - its ability to take up and release moisture and the predictable change in shape that it undergoes when this happens.

But such shape-shifting behaviour can also be harnessed by humans. Based on an in-depth understanding of how the moisture content and grain direction of

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