Why Sky is Blue?

Words
391
Reading
2 min
Listen
Play
9y

langit biru.jpg

As you look up your head at the expanse of the sky in bright daylight, your eyes will catch the blue color that dominates the sky. We also ask why the sky is blue in the morning until late afternoon? This question we may have asked when we were children. However, maybe we have not remembered the explanation. Space is not colored. As the sun radiates bright and golden light. The blue sky is caused by the interaction of the atmosphere and sunlight. Quoted from Live Science, white light, including sunlight, is made of light particles of different colors. Each has corresponding wavelengths.

073815900_1444025922-theinquirer.jpg

A few different things can happen when the light comes in contact with the substance. For example, if sunlight penetrates transparent objects such as water, light waves will be refracted or curved. Because light changes its speed while moving from one medium (air) to another medium (water).
Prisms break the white light in the elements of color. Because different light waves refract different colors in each point of view. Meanwhile, the colors move at different speeds as they penetrate the prism.

Prisms refract white light in the spectrum of colors. Alternatively, how objects, such as mirrors, reflect light in one direction. While other objects can make light scattered in various directions. Blue sky is the result of a type of dispersal called 'Rayleigh spread', which refers to the spreading of light from small particles. Only one tenth of a wavelength.

081994800_1444025971-blog_1000bulbs.jpg

The spread of Rayleigh is highly dependent on the wavelength of light, with the wavelength below which is the most widespread. In the lower layer atmosphere, mini-oxygen particles and nitrogen molecules disperse shortwave light, such as the colors of the blue and indigo spectra, to a greater degree of longwave light, such as red and yellow.

In fact, the spread of 400-nanometer light (tilapia) is 9.4 times wider than a 700-nanometer (red) light spread. Although asmospheric particles spread more tilap than blue, blue is visible because our eyes are more sensitive to blue light. Also because some indigo light has been absorbed by the upper layers of the atmosphere. When the sun rises or drowns, sunlight penetrates the atmosphere more strongly. This results in blue light and indigo spread again, and shows a shining red and yellow glow. This is what brings the orange tinge to the sky.

Why Sky is Blue? | Ecency