No considerable alterations have been made in this work since the first edition was reviewed in NATURE of March 1, 1917. Sliglit modifications have been effected, and recent data in connection with ...

Relays and contactors use a variety of technologies to switch signals and power connections. Many devices called relays use similar techniques and topologies, but the terminology can be confusing.

The automaker says defective contactors in its electrical motors could come loose, resulting in a loss of power. Lucid previously recalled its luxury Air sedans over a faulty wiring harness connected ...