How Does Relativity Affect Our Perception of Light and Photons?

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SUMMARY

This discussion centers on the nature of photons and their relationship with spacetime and time perception. It is established that photons do not experience time due to their travel at the speed of light, which results in time dilation effects that approach infinity for observers moving at subluminal speeds. The conversation also clarifies that photons possess zero rest mass, leading to their unique 4-velocity characteristics, where all of their velocity is allocated to spatial dimensions, leaving no component for time. Furthermore, the impossibility of transforming an observer's frame of reference to that of a photon is emphasized, as Lorentz transformations cannot accommodate such a scenario.

PREREQUISITES
  • Understanding of special relativity and Lorentz transformations
  • Familiarity with the concept of 4-velocity in physics
  • Knowledge of time dilation and its implications in relativistic physics
  • Basic principles of quantum field theory regarding photon behavior
NEXT STEPS
  • Explore the implications of time dilation in special relativity
  • Study the mathematical formulation of 4-velocity and its significance
  • Investigate the properties of lightlike vectors in Minkowski spacetime
  • Learn about the dual nature of photons as both particles and waves
USEFUL FOR

This discussion is beneficial for physicists, students of relativity, and anyone interested in the fundamental properties of light and its interaction with spacetime. It provides insights into advanced concepts in theoretical physics and quantum mechanics.

  • #31
DaveC426913 said:
That's a question better answered by someone more in the know than I.

Essentially, all the light in front of you will be blue-shifted way up the scale to nearly infinite energy, whereas all the light behind you will be red-shifted way down the scale. Think of what an ambulance in front of you and another behind you would sound like if you were traveling at mach .99.

There are other details, such as the fact that your destination would get up all in your face as you virtually immediately arrive there.

So we would not see anything because our eyes can only see in the visible spectrum of light?
 
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  • #32
jlorda said:
So we would not see anything because our eyes can only see in the visible spectrum of light?
Well... Don't forget that the universe is shot-through with very low frequency radiation as much as anything else; that would be correspondingly blue-shifted up into the visible spectrum.

That is, if you magically lived through the raging storm of hard ultra-high energy cosmic radiation pelting your ship.
 
  • #33
jlorda said:
So we would not see anything because our eyes can only see in the visible spectrum of light?
High energy gamma rays would however excite your retina together with all the other components of your eyes and your vision area in your brain, so I imagine that you would perceive an almost infinitely bright light as if it were coming from all over, at least for an infinitesimal time before your death...
 
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