We are #SpaceEnablers. We build the most reliable launch vehicles and we are developing Ariane 6. Get your space gear! 
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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!
#ArianeGroup #Ariane5pic.twitter.com/YDfES75pkp
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? #ArianeGrouppic.twitter.com/Jt0Iswo2an
Was it acoustic absorption panels 
Before that Hayden, we used other types of resonators 
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