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 ...

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 ...

There are seven types of electromagnetic (EM) waves, which make up the electromagnetic spectrum. Electromagnetic waves are transverse waves, and travel at the speed of light. Different types of ...

In order to reach the terahertz regime this speed needs to be pushed a thousand times further to a trillion times a second. Terahertz (THz) technology refers to the use of electromagnetic waves in the ...

When introducing the concept of a spaser, it is first useful to explain how it is possible to beat the diffraction limit and focus electromagnetic waves to spots much smaller than a wavelength.

Nissan doesn't explain the intricacies of the paint or how the electromagnetic waves are generated, but the results are pretty conclusive. Comparisons show a temperature drop of 12 degrees Celsius ...

A team of researchers has developed a groundbreaking ultra-thin material that absorbs electromagnetic waves with unmatched ...