Summary

Like the folds in crumpled sheets or the footprints on recently trodden sand, certain materials mark their histories. Now, Yale researchers show that networks of flowing water and other fluids can store their own memories—similar to how a computer chip does—an innovation that could steer robots and provide insight into some simple organisms. The results are published in Physical Review X . In Professor Amir Pahlavan's lab, researchers created a small chip with multiple tiny channels, each with a depth about half the width of a human hair.

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