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Our sky is blue DURING THE DAY because of two things:
1) sunlight is entering our atmosphere
2) our atmosphere is thick enough to preferentially scatter blue light.
If either (1) or (2) cease to be true, then the sky will NOT be blue.
As night "falls," the sky does not go instantly from blue to black. Instead, less and less of our Sun's light is available to scatter, and thus the sky goes slowly from blue to black.
It's the same way as you go higher and higher. There is no altitude at which there is simply no longer enough atmosphere to scatter enough sun light to give the sky a blue look. It is more the case that, as you go higher and higher, the sky becomes less and less blue -- just like at night "fall."
For SOME idea of how our sky changes, check out a video of a space shuttle launch.
What else can I help you with?
Why does porcelain turn black when heated?
Porcelain turns black when heated due to carbon impurities in the material being burned off, leaving behind a black residue. This happens at high temperatures where the carbon particles react and create black pigments on the surface of the porcelain.
What becomes of gamma radiation emitted by black holes?
Gamma radiation emitted by black holes can originate from the accretion disk around the black hole or from high-energy processes within the black hole itself. This radiation can escape the gravitational pull of the black hole and travel through space, potentially affecting nearby objects or being detected by telescopes as a signature of black hole activity.
How far do neutron particles travel in air?
Neutron particles can travel varying distances in air depending on their energy. Low-energy neutrons typically travel only a few centimeters before being absorbed or scattered by air molecules, while high-energy neutrons can travel several meters. However, in general, neutrons do not travel far in air due to their lack of electric charge, which limits their interactions with matter.
Do high pitched sounds travel in a straight line?
High pitched sounds, like all other sounds, travel in all directions in waves from their source. The direction they travel in can be affected by obstacles, reflections, and other factors, but they do not travel in a perfectly straight line.
Where does the wind in a high pressure system turn?
Remember this, high pressure systems usually go outwards, into low pressure systems in order to create an equilibrium. In the northern hemisphere, the high pressure wind turns right due to the coriolis effect, and opposite in the south.
Why does Pancake batter turns black?
Too much sugar and too high of heat.
Why does an egg shell turns black when an egg is boiled in volcanic hot lakes?
When an egg is boiled in volcanic hot lakes, the high temperatures cause the iron in the eggshell to react with hydrogen sulfide in the volcanic water, forming iron sulfide. Iron sulfide has a black color, which is why the eggshell turns black during this process.
What is the best time to travel for Thanksgiving to avoid heavy traffic and high prices"?
The best time to travel for Thanksgiving to avoid heavy traffic and high prices is typically on the Monday or Tuesday before Thanksgiving, or on Thanksgiving Day itself. Avoid traveling on the Wednesday before Thanksgiving, as it is usually the busiest day for travel.
What color is black when its burnt?
When black is burnt, it turns a grayish color due to the carbon content in the material being burnt. The black pigment may lose its intensity and appear lighter or ashy when subjected to high heat or combustion.
How do you deafet the black widow?
you put the lever completely high before $1,000,000 is smashed
Why does porcelain turn black when heated?
Porcelain turns black when heated due to carbon impurities in the material being burned off, leaving behind a black residue. This happens at high temperatures where the carbon particles react and create black pigments on the surface of the porcelain.
What was Greenville Park High School called before it got the name Greenville Park High School in Hammond Louisiana.?
Black high school
High pressure steam turns the blades of?
High pressure steam hits the blades of a TURBINE and turns its shaft.
What does it mean when brown sugar turns white?
If the brown sugar turns white means, then it tells us that humid level present in the air is high and so some sugar will get dissolved leaving the black molasses residue behind.
Why is the sky sometimes turns gray and black?
The sky turns gray or black primarily due to the presence of thick clouds, particularly cumulonimbus clouds, which contain a high concentration of water droplets and ice crystals. These clouds block sunlight, leading to darker skies. Additionally, storm systems, pollution, or smoke can contribute to the gray appearance, as they scatter and absorb light differently. When the clouds are dense enough, they can create a dramatic, ominous effect before rain or storms occur.
What turns on high school guys the most?
high school girls!
How many turns out on the high low fuel mix to get a 2.0 chain saw to start?
Start with 1and1/2 turns out on both high and low
