Engineering

New device paves the way to 3-D-printed organs, food

More than 113,000 people are currently on the national transplant list. And with a shortage of donors, this means that about 20 people will die every day while waiting for an organ, according to the U.S. Department of Health.

Robotics

Robot transitions from soft to rigid

Even octopuses understand the importance of elbows. When these squishy, loose-limbed cephalopods need to make a precise movement—such as guiding food into their mouth—the muscles in their tentacles contract to create ...

Engineering

Novel 3-D printing technique yields high-performance composites

Nature has produced exquisite composite materials—wood, bone, teeth, and shells, for example—that combine light weight and density with desirable mechanical properties such as stiffness, strength and damage tolerance.

Engineering

Mimicking nature's cellular architectures via 3-D printing

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being compressed. The plant's hardiness comes from a combination of its ...