Engineering

One-dimensional objects morph into new dimensions

A line is the shortest distance between two points, but "A-line," a 4-D printing system developed at Carnegie Mellon University, takes a more circuitous route. One-dimensional, "line"-shaped plastic structures produced with ...

Engineering

Rocket fuel and 3-D printing

James Cook University scientists in Australia are using 3-D printing to create fuels for rockets, and using tailor-made rocket motors they've built to test the fuels.