Adaptable 4D-printed material might not be far away

What if all solid objects could adapt their forms to outside stimuli? Imaging having a car wreck where both automobiles adapt their shape upon impact in order to cause less damage. Or imagine uniforms for soldiers, police, and firemen that modified their structure when rubble, bullets, or fire threatened the wearer. It’s an interesting concept and one that may soon become reality thanks to research being produced by folks at Harvard, The University of Illinois, and University of Pittsburgh.