Engineering

Sustainably produced high-speed helicopters

Fast, lightweight and fuel efficient: RACER, the high-speed helicopter reaches flying speeds of up to 400 kilometers per hour. The components of its outer shell are made by an innovative, highly automated manufacturing process. ...

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

3-D printing with high-performance carbon fiber

Lawrence Livermore National Laboratory (LLNL) researchers have become the first to 3-D print aerospace-grade carbon fiber composites, opening the door to greater control and optimization of the lightweight, yet stronger than ...

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