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I don't want to argue about it because I fundamentally agree that sound affects the way we play, but the fact is that I am using the most precise possible language to describe this, and if you decide you don't want to understand...????? Well Ok. But that is pretty much exactly what I said.
To reiterate: Sound is vibrations carried as pressure waves through the air. It is detected by our auditory system normally, except if it is really loud and low enough frequency you can feel it in other parts of your body. The question is whether the normal sense of hearing is actually the thing that makes us say, for example, that one setup is different from another has been raised. I personally don't think it is a major contributor, but I have not done the thing experiment that would determine for sure. We all know that it sounds different when you drive the ball with an open racket angle as opposed to brushing it. Sound narrowly defined may tell us more than we think about what just happened on a shot and determine how we play.
Still, it is obvious that other organ systems in our body can detect when we hit the ball (and also how we know what racket angle we used and even how hard we hit). I personally think the MULTIPLE sensory systems that allow us do to this are a lot more important to our "feel" than sound. And they are not vibrations that are carried as waves through the atmosphere (which is why sound does not exist in space and is different underwater). Those vibrations are instead carried through the medium of the rubber/blade/handle and from there to your hands and from there to your wrist, arm, etc. (and also to the atmosphere). Those vibrations within the handle are by definition NOT SOUND. And those vibrations are detected by a set of completely different organs not found in your ears and which deaf people certainly have. Deaf people would not need functional auditory system to know when they hit the ball.
No wonder you felt that iacas was being extreme. This is clearly not what he meant and not what I mean. In Physics, which is about as precise as anything, sound waves are simply created by vibrations. Language is generally imprecise so it's more important to understand what someone is saying that to force a precision onto something that requires its fluidity to grow - make it only as precise as absolutely necessary. Of course, someone would define "sound" as being "vibrations that you can hear" then when asked why "ultrasound" is a kind of sound, will start to look like an idiot unless he is is trying to understand what other people are saying and not trying to win arguments purely on definitions.
Sound does not exist underwater or people can't hear certain sounds underwater? In any case, we now can see the source of the flame war. IT's clear that everyone understands. But in this case, you are using language to accuse people of not understanding.
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