The British mathematician and pioneer of computing Alan Turing published a paper in 1936 which described a Universal Machine, a theoretical model of a computer processor that would later become ...

A technician examines equipment inside the world's largest shield machine for railway construction in April before it began operation. FANG ZHE/XINHUA The world's largest shield machine for ...

An improvement on this machine was made for sewing umbrellas, but it has never been successfully introduced. Still, as these served to suggest new ideas on this subject, it was a step foreword ...