Colours of the sky

Forums Chit Chat Corner Colours of the sky

This topic contains 18 replies, has 2 voices, and was last updated by  Iman Hakeemi 2 years, 11 months ago.

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  • #608 Reply

    rexyme
    Keymaster

    1. Have you ever wonder why the sky appear reddish during sunset?
    2. How about the clear BLUE sky?

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  • #631 Reply

    Justin Lew

    1. The colour is not scattered to pass through the atmosphere, and so follows the ROY pattern

    2. The sunlight is just above, so it falls in the blue catagory.

  • #632 Reply

    Zhang Yimei

    1.As the sun crosses the horizon, the atmosphere acts as a prism, refracting the different colors of light.As the violet-indigo-blue sequence goes by, it is lost in the general blue of the sky. The yellow-orange-red sequence is lost in the reddish color of the sunset.Between these two sequences is green, which stands out vividly against the blue of the sky, and the red of the sunset.

    2.A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light.

  • #633 Reply

    Chen yee

    1)The light that is not scattered is able to pass through our atmosphere and reach our eyes in a rather non-interrupted path.
    2)The interaction of sunlight with matter can result in one of three wave behaviors: absorption, transmission, and reflection. The atmosphere is a gaseous sea that contains a variety of types of particles; the two most common types of matter present in the atmosphere are gaseous nitrogen and oxygen.

  • #634 Reply

    kai ming

    1)the light is not scattered to pass through the atmosphere,

    2)the light from the sun shine on the water molecules in the atmosphere so we the sky is blue

  • #635 Reply

    Pu YiXuan

    the wavelength of the colour blue is the shortest of all the colours and the wavelength of the colour red is the longest of all the colours. When the sun is shining on the earth, one half of the earth is dark in the shadow and the other half is in the sunlight. Sunset and sunrise happen on border of the shadow and the shining part and this place is the farthest part from the sun in the shining part. Therefore the wavelength of light in this part is the longest ,so the sky appears red. On the contrary, the sky in the daytime appears blue.

  • #636 Reply

    Wang zichen

    1.It is because of the speed of red light is the lowest among the seven rainbow colours,therefore,the effect of dispersal is the greatest,so that we can only see the red colour.Hence,only red light come into our eyes,which perform as the red sky.
    2.Because the sky reflects the colour of the sea.

  • #637 Reply

    Qi Hui

    1. the sky appear reddish during sunset because the path that sunlight takes through our atmosphere increases in length, and cause the colour (red,orangle,yellow,green,blue,indigo and violet ) to encounters more and more atmospheric particles. This results in the scattering of greater and greater amounts of yellow light. During sunset hours, the light passing through our atmosphere tends to be most concentrated with red and orange frequencies of light. For this reason, the sunsets appear reddish.
    2.particles in the air are most effective in scattering the distance frequency.This cause it to absorp the a light wave.Compared to blue light, violet light is most easily scattered by atmospheric particles.However, our eyes are more sensitive to light with blue frequencies. Thus, we view the skies as being blue in color.

  • #638 Reply

    Aaron

    1.Blue Skies and Red Sunsets. The sun emits light waves with a range of frequencies. Some of these frequencies fall within the visible light spectrum and thus are detectable by the human eye. Since sunlight consists of light with the range of visible light frequencies, it appears white.
    2.A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

  • #639 Reply

    Nicole Lim

    1)The moon does not have any atmosphere while the earth has. Also, white light — sunlight is composed of all the colours of the rainbow. Tiny molecules cause light to scatter therefore our sky looks blue. The sun is lower the horizon therefore turning reddish. due to light rays passing through more of the atmosphere and therefore bounce off more molecules
    2) The sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

  • #640 Reply

    Hee Chee Seng

    1)Within the visible range of light, red light waves are scattered the least by atmospheric gas molecules. So at sunset, when the sunlight travels a long path through the atmosphere to reach our eyes, the blue light has been mostly removed, leaving mostly red and yellow light remaining.
    2)The tiny gas molecules that make up our Earth’s atmosphere (mostly oxygen and nitrogen) scatter the blue portion of sunlight in all directions, creating an effect that we see as a blue sky.

  • #641 Reply

    Fatin Nabila

    1.The red light waves are scattered by atmospheric gas molecules. During sunset when the light travels a long distance to reach our eyes the blue light has been removed leaving the colour red and yellow light.
    2.The moleclues in the air scatter blu light more than red light.

  • #643 Reply

    Audrey

    1.As the Sun gets lower in the sky, its light passes through more of the atmosphere to reach earth. Even more of the blue
    2.Sunlight reaches Earth’s atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth’s atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves.

  • #644 Reply

    sivani

    1) When sun sets we see the reddish colour because the blue light has been scattered out to different directions.

    2) sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light.

  • #645 Reply

    nur sabrina

    1 ) Air molecules scatter away the shorter wavelengths of light (violet and blue) and the only light which penetrates through the atmosphere are the longer wavelengths of light (yellow, orange and red) which produce colorful sunsets.

    2 ) A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

  • #646 Reply

    Guo Jiaxin

    1.The sky appears reddish during sunset because the red light waves are scattered the least by atmosphere gas molecules . As sunset , when the sunlight travels a path through the atmosphere th reach our eyes , the blue ,indigo and violet have been removed , leaving mostly red and orange remain.
    2.Because blue ,indigo and violet have longer wavelength which cause the scattering of light,then we can see the blue in our eyes

  • #647 Reply

    Luo Jin

    1. The red colour in the sky at sunset (and sunrise) is due to an effect called Rayleigh scattering. There is a similar form of scattering called Mie scattering which is responsible for the white colour of clouds.
    2. The sky is blue is because as Comparing to blue light, violet light is most easily scattered by atmospheric particles.However, our eyes are more sensitive to light with blue frequencies.

  • #648 Reply

    Irna Juanniera

    1. The light that is not scattered is able to pass through our atmosphere and reach our eyes in a rather non-interrupted path. The lower frequencies of sunlight (ROY) tend to reach our eyes as we sight directly at the sun during midday.

    2. Atmospheric nitrogen and oxygen scatter violet light most easily, followed by blue light, green light etc. So, violet light is most easily scattered by atmospheric particles than blue light . However, our eyes are more sensitive to light with blue frequencies, thus allowing us to see clear blue skies.

  • #649 Reply

    Iman Hakeemi

    1)n fact, sunlight tends to be most rich with yellow light frequencies. For these reasons, the sun appears yellow during midday.
    2)Blue light is scattered in all directions by the tiny molecules of air in Earth’s atmosphere.

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