Electromagnetic radiation is the general term for the more familiar light and radio waves, but also includes gamma rays, x rays, ultraviolet rays, and infrared. All of these forms of electromagnetic ...

The film explains the concept of electromagnetic waves, particularly focusing on their applications in radar, radio, and television. It describes how a crystal set functions as a simple radio receiver ...

The systematic investigation of the properties and characteristics of these very short waves was taken up in view of the advantages which they seemed to offer in the field of practical radio ...

Power beaming could allow an orbiting space-based power station to deliver one gigawatt of solar power, enough to power about ...

Scientists have revealed a hidden trigger of lightning that could resolve a centuries-old weather mystery. Earth is struck by some 44 bolts of lightning each second, on average. Despite this, ...

the upper layer of the atmosphere that reflects electromagnetic radio waves. When some of those waves are a matching wavelength, they vibrate together and increase in strength to form the Schumann ...

Dr. George Shaker has huge hopes for a small radar device he developed with a team of researchers at the University of ...

A scalable, low-cost device that can generate high-power terahertz waves on a chip, without bulky silicon lenses.

Terahertz waves sit on the electromagnetic spectrum between radio waves and infrared light. Their higher frequencies enable them to carry more information per second than radio waves, while they ...