4D printing could give us shoes that become water-resistant when needed

4D printing is the newest and most exciting innovation in the architecture and manufacturing industry. As the name suggests, 4D printing is the result of a 3D-printed object that has another dimension tacked on: time.

These objects are set apart from their 3D predecessors because they have the power to change shape over time when exposed to certain stimuli.

The furthest advancements that have been made in this new technology comes from the labs of Wyss Institute and Harvard SEAS. They’ve developed a new microscale printing method that creates transformable objects.

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