The electromagnetic spectrum holds a unique place in the history of innovation. From the early days of radio to today’s ...

The White House’s project to beef up domestic missile defense could lead to a regulatory and legal fight over radio ...

The electromagnetic spectrum has many types of light waves. It includes radio waves, microwaves, infrared light, visible light, ultraviolet, X-rays, and gamma rays. Each type of light has a different ...

Electromagnetic radiation is the general term for ... and lower (moving away) frequencies. The resulting spectrum (power vs. frequency) shows two peaks. These features are very narrow compared to most ...

Authors in these pages have observed how the electromagnetic spectrum underpins military ... dating to an era before a wireless economy existed — mid-band spectrum frequencies were allocated to the ...

Axions are thought to have a frequency like a wave, but scientists do not know where they exist on the electromagnetic spectrum—though they are thought to range from kilohertz, a frequency that ...