Can We Transform Radiowaves to Light?

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Discussion Overview

The discussion explores the possibility of transforming radiowaves into visible light through the effects of relative motion between a transmitter and a receiver. It considers the implications of Doppler shifting and the energy changes associated with such transformations.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions whether radiowaves emitted from a transmitter can be "stacked up" to become visible light when a rocket approaches the source at high speeds.
  • Another participant asserts that this phenomenon can be explained by standard Doppler shifting, suggesting that relative velocities can shift wavelengths from one to another.
  • A different participant notes that as the relative motion occurs, there may be an increase in the energy of the waves being measured.
  • Another participant draws a parallel to the concept of N-Waves in trans-sonic flight, while also mentioning Čerenkov radiation in the context of speed and energy phenomena.

Areas of Agreement / Disagreement

Participants express varying perspectives on the transformation of wavelengths and the associated energy changes, indicating that multiple competing views remain without a clear consensus.

Contextual Notes

Some assumptions regarding the mechanics of wavelength transformation and the conditions under which these phenomena occur are not fully explored, leaving room for further clarification and discussion.

calis
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If a rocket is flying towards a radio transmitter that emits radiowaves (100 fm for instance) fast enough. does these radio waves get stacked up and become visible light.

extrapolated question. can we (by changing the relative velocities between transmiter and receiver) shift from any wavelength to any wavelength?
 
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calis said:
If a rocket is flying towards a radio transmitter that emits radiowaves (100 fm for instance) fast enough. does these radio waves get stacked up and become visible light.

extrapolated question. can we (by changing the relative velocities between transmiter and receiver) shift from any wavelength to any wavelength?

Yes. Standard Doppler Shifting.
 
And while that is going on you measure increasing energy of the waves as well...
 
Hmmm... it sounds like the N-Wave in trans-sonic flight! Of course, there is no trans-c flight, and I guess Čerenkov Rad is that "boom", short of an FTL miracle/catastrophe.
 

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