Fire spread refers to the advance of flames.
Propagation , from Latin propagatĭo , is the action and effect of propagating. This verb refers to making something reach different places from where it is produced ; to extend or dilate something; or to multiply something by generation or other means of reproduction.
For example: "We have to think about how we can achieve the spread of heat to avoid the cold" , "The spread of the epidemic is out of control" , "The government is worried about the spread of insecurity cases" .
Fire Spread
Typically, the term propagation is used to refer to how a fire, for example, is spreading through the area where it originated. Thus, it is established that this circumstance can occur in two fundamental ways: vertically and horizontally.
In the case of the vertical spread of fire we would have to establish that it is favored by both stairwells and ventilation ducts, wooden doors or even chimneys.
On the other hand, regarding horizontal propagation, it must be emphasized that it is favored by the fact that there are no fire walls or fire doors, as well as that there are but they are not well located.
Ebola epidemic
Another type of spread that usually makes the front pages of the media around the world is that of Ebola. This is a virus that occurs mainly in Africa and is transmitted to humans through contact with wild animals, causing various symptoms (vomiting, muscle pain, fever, hemorrhages...) and even death.
Given the deadly consequences of the aforementioned virus and the outbreak that seems to have reappeared, it should be noted that the health authorities are informing of the measures that must be taken to prevent it from continuing to spread. Specifically, they state that direct contact with the body fluids of other people as well as those of infected animals, through their viscera, should be avoided.
In a similar but more general sense, spread is related to the contagion or replication of certain phenomena. If it is said that obesity is spreading throughout the world, it is referring to the fact that cases of overweight people are becoming more frequent in various countries.
The sending of waves from a transmitter to a receiver is called propagation.
Wave Propagation
As a phenomenon of physics , propagation is associated with the conduction of waves from a transmitter to a receiver . The physical basis of propagation will depend on the most appropriate frequency range for the wave to be transmitted.
Radio communication is a type of telecommunication that develops from the propagation of radio waves . The behavior of these waves will be linked to the frequency bands of the radio spectrum.
The emitter produces a carrier wave that acts on an electrical conductor (the antenna ). The movement of the electrical charge induced by the wave in the antenna means that it can transform the wave into an audio, video, etc. signal. Thus, the receiver captures the wave and converts it into information that can be understood by the public.