Can Light Exist in Complete Darkness?

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SUMMARY

The discussion centers on the philosophical and scientific interpretation of light and darkness. It establishes that darkness is defined as the total absence of light, making the statement "even in darkness there is light" misleading unless one considers light sources that are not immediately visible, such as celestial bodies. Participants highlight that even in a vacuum, phenomena like quantum fluctuations can occur, but these do not equate to visible light. The conversation emphasizes the importance of defining terms clearly to avoid confusion.

PREREQUISITES
  • Understanding of basic physics concepts, particularly light and darkness.
  • Familiarity with quantum mechanics, specifically the Casimir effect.
  • Knowledge of observational astronomy and celestial bodies.
  • Philosophical reasoning regarding perception and reality.
NEXT STEPS
  • Research the Casimir effect and its implications in quantum physics.
  • Explore the properties of light and how it interacts with different environments.
  • Study observational techniques in astronomy to understand light visibility in space.
  • Examine philosophical discussions on perception and reality in relation to light and darkness.
USEFUL FOR

Students of physics, philosophers interested in perception, astronomers, and anyone exploring the nature of light and darkness.

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even in darkness there is light !

this could be a stupid question
but i hope i can get an answer of some sort .

can the quote even in darkess there is light be proven?

can there be light paticules waves photon or anything else in darkness

thank you in advance
 
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Well, not if you define darkness as the total absence of light
 


Define light, define darkness. When you observe the sky in the night you are looking through a dark space that is full of light - it is just not dispersed and as such not visible to your eyes. But put something large and reflective enough in the place you are looking at (like Moon) and you will say - how bright!
 


I guess this does sound like nonsence but without light our eyes couldn't see darkness
 
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experimentum said:
I guess this does sound like nonsence but without light our eyes couldn't see darkness

Darkness is the absence of light. One does not see an absence, so your statement does not seem to make sense.
 


I guess what the saying, "even in darkness there is light" is really saying is, open your darn eye's! and has nothing to do with actual light and dark. I think that's what I meant, Ya that's it.
 
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Philosophy aside. Even in a vacuum 'darkness' there are quantum fluctuations which you can measure with the Casimir effect. That doesn't translate to 'light in darkness'. But there is 'something'. Is that what you are referring to?
 
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Is the darkness you speak of a man-made environment - designed to keep light out? Or, are you thinking about the darkness of space - where there are distant objects capable of emitting light?
 


The OP seems to have been a drive-by poster
 
  • #10


phinds said:
The OP seems to have been a drive-by poster

Unfortunately, I've read a few other threads that seem to fall into that category.
 

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