Cell phone radiation, also known as radiofrequency (RF) radiation, travels in the form of electromagnetic waves. These waves are a type of energy that can propagate through space without the need for a physical medium.
When you make a call or use your cell phone to transmit data, the device emits RF radiation. This radiation is generated by the internal antenna within the cell phone. The antenna converts electrical signals into electromagnetic waves, which then propagate outward from the device.
Cell phone radiation travels through the air in a similar way to other types of electromagnetic waves, such as radio waves, microwaves, and visible light. These waves have different wavelengths and frequencies, with cell phone radiation falling in the microwave range.
As the electromagnetic waves travel, they can be absorbed, reflected, or scattered by various objects they encounter. The strength of the radiation decreases as it moves away from the cell phone due to the inverse square law, which states that the intensity of the radiation diminishes as the square of the distance from the source increases.
When you hold your cell phone against your head, some of the radiation emitted by the device can be absorbed by your body tissues, including the head and brain. This absorption occurs due to the interaction between the electromagnetic waves and the atoms and molecules in your body. However, it's important to note that the levels of radiation emitted by cell phones are generally considered to be within safe limits, as regulated by governmental agencies in many countries.
It's worth mentioning that different cell phone models and technologies may have variations in the amount and type of radiation they emit. Additionally, the presence of obstacles, such as buildings or other objects, can affect the propagation of cell phone radiation by causing reflections, diffraction, or absorption.