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What is 4. The interaction of light with matter about?

The image that you saw when you were the hiker in the scene in Figure 2.1 is the light that originally came from the sun, but has been scattered by the blue sky, green plants, and dark asphalt road. Before the light arrives to your eyes, it has interacted with the atoms and molecules in the ionosphere, troposphere, atmosphere, and biosphere (Figure 2.4). On arriving at your eyes, it certainly interacts with the retinals in your eyes, the rhodopsin molecules that are important for light sensing in our vision apparatus. Part of the light is absorbed, and part of the light is scattered to our eye. When I was in elementary school, maybe 8 years of age, our teacher told us a way to spot the man who was wearing an invisibility cloak. The invisibility cloak is what you want to have if you want to go in stealth and not have anybody see you. At that age, during breaks or sports at school, we would play Völkerball, dodgeball. The playing field is divided into two halves, each of the two teams is restricted to their own half, one large ball is used, and you want to hit a player of the opponent team, while all players of the opponent team want to avoid being hit. If you hit an opponent, he is

Publisher

De Gruyter

Published

2020

Language

EN