In modern warfare, battles are not only fought with rifles, tanks and artillery. Some of the most decisive victories are won ...

Even in crystal-clear water, it can be easy for scuba divers to lose track of which way they're heading. An experimental new ...

Electromagnetic waves with a wavelength from one to 10 millimeters, which corresponds to spectrum from 30 to 300 GHz. Millimeter wave applications include communications, radar, radio astronomy ...

The inherent contradiction in the way energy behaves. At the turn of the 20th century, it was believed that light was electromagnetic waves and electrons were particles.

This discovery meant that light was no more than an electromagnetic wave, part of the electromagnetic spectrum. Like all waves, light’s nature is defined by its wavelength – the distance ...

That’s what electromagnetic waves are (light, X-rays, microwaves, radio waves), as well as the newly-discovered gravitational waves.

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 ...