The development of more advanced technologies to process radiofrequency signals could further advance wireless communication, ...

The subway system's modernization has taken so long that once cutting-edge technology for newer trains needs to be replaced.

Up to now, underwater navigation for divers has been limited primarily to orientation at distinctive points or compass ...

About 85 percent of New York City’s subway system still operates with this analog signal system. The outdated equipment is no longer manufactured and has to be manually operated, around the clock.