Scientists Unveil New 4D Printing Technique

According to a published press release from Harvard's Wyss Institute, a team of researchers have taken the concept of 3D printing and upped the ante by adding a fourth dimension: time. Taking on the obvious label of 4D printing, the group's inventive take of additive manufacturing uses a gel-like composite to print flat objects which then have the ability to dramatically alter their shape when submerged in water.