Why the electromagnetic spectrum is so interesting and useful for scientists and everyday life.

The GAO asserts that the Pentagon risks not achieving the goals set out in its 2020 strategy for electromagnetic superiority. (Bill Roche/U.S. Army) WASHINGTON — The Department of Defense is in danger ...

By combining terahertz radiation and optoacoustic detection, they created a non-invasive system that tracks sodium in real-time, even through the skin. The approach bypasses traditional barriers, such ...