Radio waves have wavelengths ranging from thousands of metres down to around 30 cm. This means they can easily travel around large objects, like hills, mountains or buildings. Microwaves have ...

But for me it was disappointing because I know it is actually possible to see what radio waves look like ... this radar to directly image a 2.4 GHz microwave field emitted from its own transmitter.

There's lots to discover in the electromagnetic spectrum. Here's a tour that begins with radio waves and takes you through microwaves, infrared radiation, light, ultraviolet radiation, and X-rays.

Magnetrons cause electric charges to oscillate and emit microwaves — a more powerful form of radiation than the radio waves previously used for radar defences. The post-war period saw a ...

Humans have figured out many ways to utilize radio waves, X-rays, microwaves, infrared light, and many other types of electromagnetic radiation. However, terahertz waves remain an unsolved puzzle.

The question “are we alone in the universe?” has fascinated people for centuries. In 1959 two Cornell University physicists described how we might answer that question through interstellar ...

Terahertz (THz) waves are located between microwaves and infrared light in the electromagnetic spectrum. They can pass through many materials without causing damage, making them useful for security ...

You reach for the microwave meal, and think ... thing was to ditch the whole concept of cooking with boring old radio waves, and just use a pile of frickin’ lasers instead.

Terahertz electromagnetic waves occupy a middle ground between electronics waves, like microwave and radio waves, and photonics waves, such as infrared and UV waves. For example, mobile phones use ...

A new patterned spintronic emitter enables room-temperature control of terahertz wave polarization.