At first it was said that light is a type of electromagnetic wave, which means that the word wave left behind for the moment, will soon return to play a role in this debate. If the corpuscular theory of Newton had worked around the problem of the ether, that Huygens had inevitably taken into account, even though the issue was resolved this time. If things were still that way, what could be the novelty of the theory of Huygens? Poor luck to all the arguments raised before and during wave Newton had depended mainly by not being able to explain why the light, thought of as wave propagation, is not able to overcome obstacles, causing the phenomenon of the shadows. The theory of Huygens established measures for light waves equal to one billionth of a meter, then, all too small to work around any object visible to the naked eye. The formation of the shadows did not exclude a priori then the character of the phenomenon. The corpuscular theory and the wave fought for a long time the scene at the end, the wave seemed to explain most phenomena related to the propagation of light, until Einstein through his theory of photon of light, went back into play tutto.La affair sounds complicated but is actually is much easier. In the early years of the century, studies using Enstein Plank said that probably the phenomenon of propagation of light rays was so that the wave nature of particle. If a packet of photons (particles of light) travel in a straight line, nothing prevents these particles to oscillate across during the trip. A kick as hard a ball is not giving the ball only one direction, but even though a slight oscillation. And 'what happens to the light, traveling in a straight line, swing across. The currently accepted theory says that the emergence of color depends on the ability of oscillation and the frequency of these waves. Light travels at a constant speed, then the variety of colors can not depend on the speed of photons, but the wave nature of these waves. Newton's hypothesis that indicated in the speed of light scattering particles the ability proved wrong in part. The light is the sum of all colors, but not the quantum of energy is the sum of the wavelengths that make up the radiant energy. Any discussion you want to do on optics and color can not disregard the substance of these arguments. It becomes necessary then an additional fee of patience to understand what we talk about when you say elettromagnetica.Onde electromagnetic wave of light. Everyone knows that matter is composed atoms, which in turn are composed of a core of positive charge (protons) and electrons (negative charges) that revolve around the core, exactly like the Earth around the Sun What we know for sure is that the space between the Earth and the Sun is empty is the same gap that exists between the nucleus and the electrons of the atom. If the core is a ball in the middle of the football field, electrons are more or less the same distance of the spectators in the stands. To give a better account of the vacuum that exists between the nucleus and electron, suffice it to say that if we could eliminate the space that separates the nucleus from the negative electric charges, a cubic centimeter of material would weigh 100 million tons. Within this space provides an electric field and magnetic fields. Electric as the elements that compose it are electric charges, because within this magnetic field is to exert attraction between charges of opposite sign. The equilibrium orbit is given both by the magnetic force of attraction is the distance of the electrons that revolve around the nucleus. On the other hand, we know that a magnet attracts a metal ball in the middle there must be without any substance. Assume that the ball turns around the magnet. His stay in orbit depend on the speed (electric field) and the ability of attraction of the magnet (magnetic field) in the same way as a ball tied to a rubber band can get away from our hands when launching a circular motion. If our days are 24 hours and the sun is in the same place every day, we owe to the fact that the Earth moves in its orbit at constant speed. E 'due to the static nature of these fields we can determine the ownership of the materials materia.Colorazione. What was said about the nature of light, and its relative spread in space, it should at least be useful to understand what actually is the complex process that ultimately makes us recognize a color rather than another. The question of coloring materials depends on the particles fired from a light source and the resulting reaction against the photonics field, being made of atoms, offers an answer to this phenomenon. An object that we will not hesitate to define red, is actually being bombarded by all the photons in the light, but only those that match a given wavelength (the red ones), give their energy to the electrons of matter. Instead of saying that an object is red, we should say that turns red every time you illuminato.Affermare that the color is nothing but the dispersion of white light into its wavelength is perhaps a bit off 'the wonder of poetry world around us, but we can be certain that the understanding of these phenomena may help us better understand ourselves as well, as we shall soon see. We try to give further substance to the definition of wavelength and frequency through a simple example for everyone. Let's pretend for a moment that the light is made up of municipalities in order to admire the sea from a rock. The waves of the sea come on the beach with energy according to different weather conditions. All we have noticed that the long waves on the beach come less frequently and with less force than short ones. Abstraction to denote by the red long waves of the sea and the purple ones with the court ... that explains once and for all, the concept of wavelength and frequency. If things are this way, based on knowledge, should not be difficult to understand a phenomena that has always been part of our daily lives and that instead of being under the eyes of all, is over the eyes of everyone. The reference is to the color of the sky, the question is: why is the sky blue? The particles of the atmosphere behave like glass prism Newton. The atmosphere is established a permanent rainbow invisible to the naked eye. The atmosphere is mainly made up of molecules of oxygen, nitrogen, water vapor and a good amount of dust. The Sun's light before coming to meet us that these particles scatter direction. The particles of light (photons) are diverted (as in Newton's prism) according to their wavelength and frequency. Those of the blue violet region are diverted to more effectively (about 10 times) than those of longer wavelength than red. The presence of blue in the sky is given by the dispersion in these photonic packages, while those of red and orange cover a route that takes them almost straight horizon. The sunset is just the path that light takes longer. By virtue of what has been said before, it should be clear that the longer wavelengths are the most likely to travel longer distances undisturbed. E ' why the horizon at certain times assumes that particular reddish hue that so much has inspired painters and poets. That is what we have set ourselves a minimum of instrumentation that is not to leave the question of the nature of color as an unresolved issue. Although some topics may inspire less than others. When first told that the color does not exist, the intention was halfway between the provocative and the subjective truth of each of us, ready to bet that their yellow car, it's really yellow. If we can say this with certainty is because the reaction between photons of light and atoms of the yellow pigment is stable and constant, exactly as it is constant stable and the orbit of Earth around the Sun not being the color of a material property, we say that our car will turn yellow whenever the light is white light. Regardless of how you form the impression of color, whether we take part in the show that nature offers us every day, we owe it to our eyes. The electromagnetic waves of light and electromagnetic waves would be only the world without color would appear if our visual system is unable to transfer to the light pulses received by the brain world.Omega 'vision of the important chapter consists of these two fundamental aspects , which specifically concern the light scattering and transmission of sensory data to brain. The complex world of the ego involved in the events in relation to the quality of the events themselves. The implications are the result of complex brain processes that lead each individual to react differently to external stimuli.
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