A broken motor in an automated machine can bring production on a busy factory floor to a halt. If engineers can't find a replacement part, they may have to order one from a distributor hundreds of ...

This transcript was prepared by a transcription service. This version may not be in its final form and may be updated. Ben Cohen: Microchips are used everywhere, in cars, gaming consoles, medical ...

At the dawn of complex life, evolution created a container for DNA, its most treasured item. A few billion years later, 20th-century microscopists looked at this container — the nucleus — up close and ...