Doppler Shift of Light: Visible-to-UV Properties?

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Discussion Overview

The discussion revolves around the properties of light that has been blueshifted from visible to ultraviolet frequencies due to relative motion between an observer and a light source. Participants explore whether this blueshifted light would exhibit the same effects as actual ultraviolet light, particularly in relation to health concerns such as cancer.

Discussion Character

  • Exploratory, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions if blueshifted light would have the same properties as actual ultraviolet light, specifically regarding its potential to cause cancer.
  • Another participant asserts that blueshifted light could indeed cause cancer like proper UV light.
  • A humorous remark suggests that sunscreen should be used when traveling at relativistic speeds to protect against potential UV exposure.
  • Another participant claims there is no difference between "proper UV light" and other forms of UV light, emphasizing the lack of a rest frame for light itself.

Areas of Agreement / Disagreement

The discussion contains multiple competing views regarding the properties of blueshifted light and its effects, with no consensus reached on the implications for health or the nature of UV light.

Contextual Notes

Participants express varying assumptions about the nature of light and its properties under relativistic conditions, but these assumptions remain unresolved.

ViolentCorpse
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If an observer and a visible light source are in relative motion such that the visible light source is blueshifted to ultraviolet frequencies, then would this visible-light-turned-ultraviolet-light being received by the observer have the same properties as that of actual ultraviolet light i.e light that is ultraviolet in its inertial frame of reference? For example, could blueshifted light cause cancer like proper UV light?
 
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ViolentCorpse said:
could blueshifted light cause cancer like proper UV light?
Yes.
 
So, one should use sunscreen when traveling relativistically.o0)
 
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There is no difference between "proper UV light" and "other" (improper?) UV light.
There is also no rest frame of light. Just a rest frame of the light emitter, but that does not matter.
 
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Thanks guys!
 

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