Engineering

New process allows 3D printing of microscale metallic parts

Engineers at Caltech have developed a method for 3D printing pure and multicomponent metals, at a resolution that is, in some cases, an order of magnitude smaller than previously possible. The process, which uses water-based ...

Engineering

Inexpensive airborne testbeds could study hypersonic technologies

Miniature satellites known as CubeSats are taking on larger roles in space missions that might previously have been carried out by more expensive conventional spacecraft. Now, researchers at the Georgia Institute of Technology ...

Hi Tech & Innovation

Self-driving lorries hit the road in Sweden

Barrelling down a motorway south of Stockholm in a 40-ton lorry and trailer, the driver keeps a careful eye on the road but, jarringly, no hands on the wheel.