SCIENCE EASY N º 175
Author: Maria Cristina Chaler.
Let's Play Series to why?
Why does the rainbow?
This beautiful rainbow that is inspiring stories, poems and legends have a physical reason to exist. Science in their ongoing quest that explanation explains and breaks no poetry but strengthens, then discover the wonders of nature increases our wonder and deepens our humility. Scientist discover what nature itself built long before the discovery
Referring to sunlight, we speak of white light, because it is composed of a cluster of different energies, some visible our eyes and others are not. In it, an area of \u200b\u200bseven continuous color that is called the visible spectrum.
These are the colors of the rainbow, inspiring colors for art and poetry.
Each has different energy, ie, vibrates differently and that their frequencies (f) (number of waves per second) and hence its wavelength (λ) (distance between peaks or valleys waves) change.
Recalling that a nanometer (nm) equals 1mm/1000000 (1milimetro divided into 1 million parts) or 1m/1000000000 (1 meter divided by 1000 million shares) the colors of our visible spectrum has the following wavelengths : Red
The colors mentioned, crossing the transparent media with different speeds and out of them do it at different angles, separating from each other and forming the visible spectrum, commonly called rainbow when the phenomenon occurs in the atmosphere.
The rainbow is not always present, if we remember when the sun appears in the presence of water and do not see it anywhere, the sun must be behind or over our heads and water droplets dispersed in front with enough wealth, So enjoy his presence when it rains and sunny, facing the falls or in front of a lawn sprinkler. Water droplets suspended in air are the medium that makes the colors of white light scattering suffer needed and separated. The light incident on the drops, a part of it is reflected in a mirror and part of the cross or dispersing the colors are refracted and forming a beautiful rainbow. The arch shape is because our eyes only perceive the colors that come from the base of a circular cone at angles that are between 42 º (red) and 40 º (blue) whose vertex comes from our eyes, the greater is the rainbow more distant is the basis of this cone, and positioning in that we are different we see rainbows, ie each individual sees or not your own rainbow.
The colors have an order in the arc which is related to the frequency of each of them that makes the diversion more or less angle, red is the outside (42 degrees) and blue inside (40 °) and among the rest.
Each arc of the same, color will be formed by all the drops are in the correct position and proper distance to allow us to see.
If you were to occur within each droplet multiple internal reflections so that the light generated by other outlets, you might get to see another rainbow (rainbow secondary) whose colors would be inverted with respect to the first and would be a little weaker.
and uncover the mystery of the rainbow, now when we see observe the order of their colors and look for the secondary rainbow.
This beautiful rainbow that is inspiring stories, poems and legends have a physical reason to exist. Science in their ongoing quest that explanation explains and breaks no poetry but strengthens, then discover the wonders of nature increases our wonder and deepens our humility. Scientist discover what nature itself built long before the discovery
Referring to sunlight, we speak of white light, because it is composed of a cluster of different energies, some visible our eyes and others are not. In it, an area of \u200b\u200bseven continuous color that is called the visible spectrum.
These are the colors of the rainbow, inspiring colors for art and poetry.
Each has different energy, ie, vibrates differently and that their frequencies (f) (number of waves per second) and hence its wavelength (λ) (distance between peaks or valleys waves) change.
Recalling that a nanometer (nm) equals 1mm/1000000 (1milimetro divided into 1 million parts) or 1m/1000000000 (1 meter divided by 1000 million shares) the colors of our visible spectrum has the following wavelengths : Red
- (620nm_750 nm)
- Orange (590nm_620nm)
- Yellow (570nm 570nm_)
- Blue ( 450nm_495nm)
- Indigo (380nm_400nm)
- Violeta (400nm_450nm)
The colors mentioned, crossing the transparent media with different speeds and out of them do it at different angles, separating from each other and forming the visible spectrum, commonly called rainbow when the phenomenon occurs in the atmosphere.
The rainbow is not always present, if we remember when the sun appears in the presence of water and do not see it anywhere, the sun must be behind or over our heads and water droplets dispersed in front with enough wealth, So enjoy his presence when it rains and sunny, facing the falls or in front of a lawn sprinkler. Water droplets suspended in air are the medium that makes the colors of white light scattering suffer needed and separated. The light incident on the drops, a part of it is reflected in a mirror and part of the cross or dispersing the colors are refracted and forming a beautiful rainbow. The arch shape is because our eyes only perceive the colors that come from the base of a circular cone at angles that are between 42 º (red) and 40 º (blue) whose vertex comes from our eyes, the greater is the rainbow more distant is the basis of this cone, and positioning in that we are different we see rainbows, ie each individual sees or not your own rainbow.
The colors have an order in the arc which is related to the frequency of each of them that makes the diversion more or less angle, red is the outside (42 degrees) and blue inside (40 °) and among the rest.
Each arc of the same, color will be formed by all the drops are in the correct position and proper distance to allow us to see.
If you were to occur within each droplet multiple internal reflections so that the light generated by other outlets, you might get to see another rainbow (rainbow secondary) whose colors would be inverted with respect to the first and would be a little weaker.
and uncover the mystery of the rainbow, now when we see observe the order of their colors and look for the secondary rainbow.
Man is just a dot on the vast Universal but has an important purpose of being 
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