Microwaves Explained - What Are Microwaves
It is relatively easier to explain microwaves when we portray it in frequencies. Here is a straightforward definition for microwaves - they are waves that lie in between 0.3 GHz and 300 GHz. During the earlier centuries, eminent scientists came to know that vacuum tubes when subjected to controlled electric and magnetic fields would give rise to microwaves. The wavelength of the microwave generated is primarily determined based on the values of electric and magnetic potentials applied to the vacuum tube. The rest of this brief article will serve as an introduction to these waves, and we will be considering its practical applications, likewise.
Throughout the years, scientists have been on the lookout for procedures that would enable them to utilize these microwaves in a feasible manner. Needless to state but over all these eras, they could perfect the technology. These days, we deploy various forms of microwave-enabled devices without even realizing them. Take, for instance, the microwave oven, which you use vehemently to preheat and cook food. As you delve deeper into the niche, we will realize that microwaves have a greater function - I will explain some of them shortly.
One of the primary uses of microwaves is for communications. We are all familiar with the wire-line technologies. However, it is difficult to deploy this technology on every nook and cranny of a country. There will be remote and desolate locations, which will make it impossible for telecommunication companies to lay wires. Microwaves can be used effectively in such scenarios because we will be able to transmit it to distant locations through the air. We just require a transmitter and a receiver to propagate and decode the signals. Many telecom companies across the globe use microwaves as a modified version of wireless broadband.
The initial use of microwaves was for radar and navigation. Metal objects tend to reflect the microwaves. Hence, if an airplane or a ship is close to the microwave source, we will be able to locate it using the appropriate technologies. In fact, we will be looking into these two practical applications in depth. Microwaves are used in airplanes and ships for maneuvering purposes. During unlikely operating environments, the plane or the ship can be guided accurately - thus averting disasters.
Microwaves are utilized in the kitchen, mainly in the form of microwave ovens. These apparatuses will contain a mechanism that would generate these waves, which when focused on the foods will heat them up. According to certain experts, microwave cooking is healthy cooking; although it is a widely debated subject.
It is a natural truth that anything that has its advantages has its own share of problems. Physicians very often attribute the sharp number of cancer patients to the repeated use of microwaves. Time is the answer to such statements and in due course, we would understand whether microwaves are indeed harmful to the humans like touted in the literary circles. Until then, keep us posted with your experiences with microwave-enabled technology.