Assertion: sky | /r/CapableOf | look blue
Facets:
value: during the day
type: TEMPORAL
value: with a slight green tinge
type: OTHER
value: in the daytime
type: TEMPORAL
Source sentences:
text: This is why the sky looks blue; you are seeing scattered blue light.
text: The atmosphere combined with water particles absorbs the color and scatters it to the eye, making it appear blue rather than purple.
text: This is why the sky looks blue during the day.
text: When you look up at the sky during the day, this scattered blue and violet light reaches your eyes, however, the human eye is more receptive to blue frequencies than violet frequencies, so the sky looks blue.
text: Besides making the sky look blue, it is also the reason why the Sun looks yellow during the day even though sunlight is white.
text: Since you see the blue light from everywhere overhead, the sky looks blue.
text: Since our eyes are less sensitive to the violet color and with the blue light scattered throughout the sky, the sky looks blue.
text: One of the eternal questions long thought unanswerable is what causes the sky to look blue.
text: What causes the sky to look blue is the result of electromagnetic scattering, using the light from the sun and the particles of Earth’s atmosphere.
text: To understand what causes the sky to look blue you must understand how light waves work.
text: Rayleigh scattering, a process named after the English scientist who discovered it, describes what causes the sky to look blue.
text: What causes the ocean to look blue is the same thing that causes the sky to look blue.
text: Since you see the blue light from everywhere overhead, the sky looks blue.
text: Since you see blue light from everywhere overhead, the sky looks blue.
text: Since you see the blue light from everywhere overhead, the sky looks blue.
text: Since you see blue light from everywhere overhead, the sky looks blue.
text: Rayleigh scattering makes the sky appear blue in the daytime; the more aerosols there are, the less blue or whiter the sky appears.
text: But because we can't see violet very well, the sky appears blue.
text: If there were no indigo and violet in the spectrum, the sky would appear blue with a slight green tinge.
text: That's why the sky appears blue.
text: Many generations of physicists and mathematicians before the 19th-20th century also probably got obsessed with trying to figure out what could cause the sky to appear orange at sunset and sunrise and blue during the day.
text: As you can see with this equation, light with short wavelength (such as blue light) will give higher value for \(\beta\); than light with long wavelength (red) which explains why the sky appears blue during the day.
text: In the first case blue light is scattered towards the eye and the sky appears blue.