Entirely irrelevant. Extremely low and extremely high air pressures DO measurably affect the propagation of sound, and render it impossible in extremely low pressures.
Light is the end product of vibration/sound. It's the result of that agitation. No agitation = no heat and no heat means no light, It's as simple as that. Heat and light cannot work unless this happens, no matter how you try and dress it up.
Light is not the byproduct of heat, or, specifically, heat is another byproduct of things which can cause light, and of light itself.
But light is not sound.
The same is not true of light. Light is not a sound. It is a wave/ particle that can propagate without a medium, and cannot travel through the same materials a vibration wave can.
Light is the reflected product of sound and vibration. Scientists have managed to fool people into believing light is somehow this super fast thing that doesn't need anything for it to work.
If it does, then tell me what causes light. What is the reason we see light?[/quote]
Particles called photons hitting our retinas with various light spectrums that have reflected off of or have been projected by the surfaces near to us. These photons are the result of Electrons and other charged particles jumping off of their valences, most commonly as a result of chemical reactions, but also due to radiation absorption and re-emission.
Quite a multitude of these reactions have no auditory component, nor do they require friction.
If the medium is required for light to propagate through, objects inside a vacuum tube would be hard or impossible to see. They are not. Light is not a goddamn sound wave.
We cannot make a true vacuum on earth for you to even say this. You are simply duped into believing that something can travel through nothing.
No matter, no existence. It should be absolute common sense but scientific story telling has warped people's minds.
Seriously, search your mind and re-evaluate what you are being fed.
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