What are the properties of electromagnetic radiation
Refers to the phenomenon of electromagnetic energy emission during the outward propagation of electromagnetic waves under radio frequency conditions. Electromagnetic radiation is a substance that exists in a special form that is invisible and intangible. The earth itself is a large magnetic field where human beings live. Thermal radiation and lightning on its surface can generate electromagnetic radiation. The sun and other planets also continuously generate electromagnetic radiation from outer space. Electromagnetic radiation generated by electronic equipment is also pervasive. Electromagnetic radiation is a composite electromagnetic wave that transfers energy over time in mutually perpendicular electric and magnetic fields.
Human life activities include a series of bioelectric activities, which are very sensitive to electromagnetic waves in the environment. Therefore, electromagnetic radiation can affect and damage the human body. Electromagnetic pollution has become a global public hazard.
