Do Stars in Space Interact Through Wave-Cancellation?

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Discussion Overview

The discussion revolves around the concept of whether stars in space interact through wave-cancellation, drawing an analogy to water waves created by throwing rocks into a pool. Participants explore the nature of light as both particles and waves, and how this might relate to interactions between stars.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants propose that stars might interact similarly to water waves, suggesting that waves could cancel each other out under certain conditions.
  • Others argue that it is highly unlikely for two stars to have the exact same frequency or waveform necessary for destructive interference, and even if it occurred, it would be a very localized effect.
  • A participant clarifies that while water waves can interfere, light waves behave differently due to their incoherent nature, which prevents such interference from occurring between stars.
  • Another participant notes that light does not require a medium to travel, contrasting it with water waves, and expresses doubt about the cancellation of light waves.
  • Some participants acknowledge a misunderstanding regarding wave cancellation, clarifying that while two waves can reinforce or cancel each other, this does not apply to light emitted by stars due to its incoherence.

Areas of Agreement / Disagreement

Participants generally disagree on the applicability of wave-cancellation between stars, with multiple competing views on the nature of light and wave interactions. The discussion remains unresolved regarding the implications of these interactions.

Contextual Notes

Limitations include the dependence on definitions of wave behavior and the assumptions about coherence and frequency matching in light emitted by stars.

Tyler Wayne
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I've been comparing light as particles and waves in outer space when it occurred to me, if you throw two rocks of equal weight into a pool side by side the waves created will cancel out. Do stars In space effect each other in this way?
 
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Tyler Wayne said:
I've been comparing light as particles and waves in outer space when it occurred to me, if you throw two rocks of equal weight into a pool side by side the waves created will cancel out. Do stars In space effect each other in this way?

It would be HIGHLY unlikely that 2 stars would have the exact same frequency/waveform in a way such as to created destructive interference and even if it happened it would be a VERY localized occurrence (you'd have to be in exactly the right place in space to "see" it)
 
Ok, I understand, so basically it's possible but to small for it to matter right?
 
Tyler Wayne said:
I've been comparing light as particles and waves in outer space when it occurred to me, if you throw two rocks of equal weight into a pool side by side the waves created will cancel out. Do stars In space effect each other in this way?
Really?? :confused: You think that if you and I jump in the water together, our splashes will cancel? Not hardly!

In the first place, water waves are very much different from light waves. For one thing they are dispersive - different frequencies travel at different velocities. Ignoring that, at best two water waves of similar frequency could interfere, meaning that they tend to reinforce each other in certain directions and cancel out in others.

Well you might get that effect if stars emitted pure waves. like lasers do. But what they do emit instead is an incoherent jumble of frequencies and phases, which simply won't exhibit interference.
 
Light can be defined as having properties of both a wave and a particle but in it wave properties it does not act similar to an ocean wave. Ocean waves need a medium to travel through(water), on the other hand light needs no medium( that is how it travels through vacuums). That being said I don't think that the waves would cancel out seeing as the don't constrict to the same rules, but that is just my input I could be wrong
 
Tyler Wayne said:
if you throw two rocks of equal weight into a pool side by side the waves created will cancel out.
Not really.

interference_water_waves.jpg
 
right, I think this goes back to what phinds said. If you stand in the right place, they get canceled out, but in other places they are reinforced. anyway, this does not happen for light between two start because the light is not coherent (as others have said).
 
Ok, I understand now, I was mislead I thought 2 waves (in water) with equal wavelength and frequency would cancel out. Thank you all for your help!
 

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