Sir, i was just wondering if vibrations can travel in solids then why don't astronomers who are in space, use a rod. They can just put it on their HELMET (INSIDE WHICH THEY HAVE AIR.) and the vibrations inside their helmets can travel into to the rod's particles and they can talk. IS THIS POSSIBLE?
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no not at all because in space there is a lot of pressure exerted on your how will u prevent that
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this is why because they can talk with the use of rope as we were kids we have made two tea cups connected to rope
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