One of the biggest difficulties tht comes with studying the brain is that we're still learning how it works. Researchers at Harvard's John A. Paulson School of Engineering and Applied Sciences may have just cracked the code on how the brain forms its distinctive ridges. By 3D printing a smooth brain, and treating it with a special gel that expands when it comes into contact with a solvent, they've found that they can simulate what the developing brain may look like.
Produced by Rob Ludacer
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