The sky appears blue because when sunlight hits nitrogen and oxygen atoms in the atmosphere, photons are absorbed by electrons, over-energizing them and causing them to emit newly created photons; since blue light is more densely packed with photons than other colors, the atmosphere absorbs and emits more blue light, making it the dominant color we observe.
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Deep Dive
Why is the sky blue?Added:
Why is the sky blue?
Much of particle physics is based on erroneous quantum electrodynamics, also known as QED or quantum field theory.
Here are four false concepts among the many postulated by QED.
One, everything in the universe is made of waves with interconnected particles.
Two, the glue that keeps a wave unified is based on virtual particles that act as messengers.
Three, all waves involve superposition.
Any single particle in a wave can exist in multiple positions at exactly the same moment in time.
Four, any specific wave can behave as separate particles or as a unified wave, depending on circumstances.
These false concepts have arisen from out-of-date quantum mechanics going back 100 years.
Increasingly, such concepts are viewed with skepticism in particle physics.
So, why is the sky blue?
QED says that we see a blue sky because of scattering.
When sunlight hits the atmosphere, the blue light of sunlight is scattered in all directions.
>> [music] >> The other colors that make up sunlight are not scattered to the same extent, so we only see blue.
This is correct, but not in the way described by QED. Erroneous QED talks about virtual photons popping into existence from nothing.
These virtual photons then become go-betweens.
They help the atoms in the atmosphere and the incoming sunlight create so-called [music] secondary photons.
These secondary photons are what we see as blue skylight. [music] But none of this is correct. All kinds of light are made of separate moving photons and nothing else at all.
We see a blue sky as a result of refraction.
When sunlight hits nitrogen and oxygen atoms in the atmosphere, the photons that make up light are [music] absorbed into the electrons of atoms.
This over energizes electrons, compelling them to expel their surplus energy in the form of newly created photons.
This ensures [music] atoms do not become over energized.
These newly created photons are what we see as blue light.
But why just blue?
Sunlight carries all the colors of the rainbow, but the blue portion of sunlight is much [music] more densely packed with photons than any other color.
This means the atmosphere absorbs and emits more blue color than any other color. So, we only see blue.
For [music] more information, go to the website deliveredonline.com or search for the book title Final Theory of Light and Finding Extraterrestrials.
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