Ojos de luz

Humans have felt attracted from the beginning of our passage through this planet, by light. All living beings in our world regulate their daily activities based on the amount of light, and light is associated in many religions with the beginning of the universe and life. In reality, light is the origin of life on our planet, through the Sun, and of our human morphology and that of all living beings that populate it. In reality, light is not only what we see, that comes to us from the Sun, or that which illuminates us during the time that said star disappears from our little piece of sky, but it is also made up of other "lights" that do not we see, and that in some cases we can feel. For decades, trying to understand what light is has served, and is serving, to develop that instrument we call science, which has allowed us to advance as a species in this world, and begin to visit others. This book describes: (i) the tortuous path that humans have followed to understand and rationalize (to a certain extent) what we call light, and therefore, to learn to use it; and, (ii) how light is made up of different regions or "pieces of light" that allow us to understand, for the first time in the History of Humanity, what our world is made of; what are the living beings that populate it made up of; and what constitutes the matter of the cosmos we inhabit.