Radio waves are transmitted easily through air. They do not cause damage if absorbed by the human body, and they can be reflected to change their direction. These properties make them ideal for ...

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 receiver ...

BL Lacertae blazar shifts between classifications faster than expected. It shows record X-ray activity and challenges current ...

Sinusoidal electromagnetic wave propagation in lossy materials ... and energy storage. 2) Basic electrical properties of conductors, semiconductors, dielectrics, and magnetic materials. 3) Fundamental ...

Electromagnetic radiation in the form of light or sound ... “It is very difficult to change the properties of a medium quick enough, uniformly, and with enough contrast to time reflect ...

The insect Anomala albopilosa has an exoskeleton that reflects circularly polarized light. Researchers at the University of Tsukuba have coated the surface of its exoskeleton with an electrically ...

Ultraviolet waves can cause skin to age prematurely and increase the risk of skin cancer. Gamma rays can also damage or kill the cells in a person's body. In order to be safe, exposure to ionising ...