Polymers that crawl like worms: How materials can develop direction without being told where to go

Researchers at the University of Vienna have uncovered a surprising phenomenon: polymer chains with segments that simply ...

A 3D-printed wheelchair is helping this turtle walk again

To improve on those first efforts, jawscritters made a series of structural adjustments. First, he made the wheels thinner and the axles shorter, which he says should help Moses make tighter turns. He ...