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Interesting - acoustic meta material


Amicus717

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"A team of Boston University researchers recently stuck a loudspeaker into one end of a PVC pipe. They cranked it up loud. What did they hear? Nothing."

Am I the only one who could hear some of it before he took the thing out then?

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2 hours ago, paulo said:

"A team of Boston University researchers recently stuck a loudspeaker into one end of a PVC pipe. They cranked it up loud. What did they hear? Nothing."

Am I the only one who could hear some of it before he took the thing out then?

Yes, you are the only one. 😀

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