A photon it’s a elemental particle which, according to the principles of quantum physics, composes the light. Like all elementary particles, photons have no known internal structure and are not made up of other smaller particles.
Photons are the carrier particles visible light, ultraviolet light, infrared light, X-rays, gamma rays and all other forms of electromagnetic radiation. They travel in a vacuum at constant speed and have zero invariant mass (they lack mass). Photons, on the other hand, have no electrical charge.
Photons are currently considered to be the responsible for the generation of all magnetic and electric fields. Many natural processes cause the emission of photons: if a particle with electric charge is accelerated, for example, these elementary particles are emitted.
To science dedicated to the study of photon production and control is known as photonics. One of the most important applications of photons is the laser, which has multiple uses. Photons are also applied in microscopes and in optical communications.
If we read the documents about the composition of light that were written throughout history, we will see that until the 18th century almost all theories spoke of the presence of particles. The reason it took so long to reach formal acceptance of these ideas was because scientists at the time did not know how to explain certain phenomena (such as birefrigence, refraction or diffraction of light) based on the model of the particles.
Throughout the seventeenth century, scientists Rene Descartes, Robert hooke Y Christian huygens tried to solve this impossibility of associating the particles with the phenomena of light with the proposal of the wave theories, according to which light propagates by means of mechanical waves emitted by a light source. Despite his efforts, theories that pointed to particles (which we know today as photons) remained in force, largely thanks to the work of Isaac Newton.
However, at the beginning of the 19th century, wave patterns gained great importance when August fresnel Y Thomas young they showed that with these theories it was perfectly possible to explain diffraction and interference. Later, Heinrich Hertz confirmed the ideas of James Clerk Maxwell about the light being an electromagnetic wave and this endangered the permanence of the photon pattern.
But the wave theory was not enough to explain light in its entirety: it claimed that light depended exclusively on its intensity, while several experiments showed that, on the contrary, it depended only on its intensity. frequency. Albert Einstein played a fundamental role in the fusion of wave and photon theories since he pointed out that the anomalies observed in many tests could be explained by the presence of quantum dots in the light wave with independence to move although the diffusion of the wave outside continuous in space.
Foton MotorOn the other hand, it is the name by which a Chinese manufacturer of agricultural machinery, trucks, vans and other vehicles is known. The business was founded in 1996 and currently has about thirty thousand employees. The pickup Foton Tunland It is one of its most famous models worldwide.
In the language colloquial of ArgentinaFinally, a photon is known as a photography of great quality or importance: “The magazine published a photon of the president looking askance at the Minister of Education”, “The image would be a photon if it weren’t for that bird that just crossed”.