Electromagnetic waves travel at 300,000,000 metres per second (m/s) through a vacuum. Electromagnetic waves can be separated into seven distinct groups in the spectrum. Each group contains a range ...
The electromagnetic spectrum is a rainbow of light waves that surround us — but we only see a small part of it. From radio waves to gamma rays, each type of light has its own properties and uses. By ...
Different types of electromagnetic wave have different uses and dangers. Radio waves are used for sending radio and television signals. They are also used to control radio-controlled toys ...
Medical applications: Terahertz technology is being researched for medical applications ... Terahertz technology is a field of science and technology that focuses on the electromagnetic waves within ...
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 ...