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This week’s question is a little more complicated but it’s quite fascinating, so share what you know with the group!
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This is interesting
Previously, fairings were sound insulated using hollow copper structures called Helmholtz resonators, but the acoustical foam that we use today is much lighter. Do you have an idea what it is made from? 
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Any additional facts you'd like to share about them?
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They really got a wet vibe
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