1. Exploring the theme of 4D printing

The pleuronectiforme is a flatfish that undergoes a metamorphosis during its life: at birth, the larvae have one eye on each side of the head and swim upright in the currents, then the eye on the underside moves to the upper side (a hormone causes the eye to move to the opposite side while a solid structure develops to prevent the eye from returning to its original position). . What nature does by modifying the shapes of living animals, mankind is trying to achieve using 3D printing combined with adaptive materials stimulated by an energy supply...

"We're all familiar with the convertible sofa that turns into a double bed, or the foldaway table that expands...