All forms of electromagnetic radiation, whether they're called waves or rays, are generated by particles in motion. In a radio signal, for example, negatively charged electrons quickly move back ...

From the warm glow of the sun to audible radio waves and invisible gamma rays, electromagnetic waves (action between particles that have an electric charge) surround us. But did you know that there's ...

Electromagnetic waves travel at 300,000,000 metres per second (m/s) through a vacuum. Often a phrase is used to help remember the order of the groups of the electromagnetic spectrum such as Roman ...

Gamma rays are the shortest wavelength electromagnetic waves, containing the most energy ... Mass extinctions in Earth’s history may have been caused by something similar to—but much stronger ...

Electromagnetic waves are members of a family of waves with common properties called the electromagnetic spectrum. The electromagnetic spectrum is a continuous range of wavelengths. The types of ...

A new study from my research team has found that electromagnetic waves generated by lightning can trigger these electron showers. A brief history lesson At the start of the space race in the 1950s, ...

THz waves, located in the far-infrared region of the electromagnetic spectrum, can be used to perform non-invasive imaging through opaque materials for security and quality control applications.

According to Gu, creating materials that can efficiently absorb electromagnetic waves, such as radar or microwaves, has been a longstanding technological challenge. "Existing materials typically ...