@sgreenee2 It is called mass loaded vinyl or flexible sound barrier , the one seen in the video weight 8kg/m2, the heavier the better?
@gjacobsdy I'm constantly amazed at how some people just end up childishly insulting each other when leaving a comment
Trillenium wannabe?
??If your dog is well behaved, it may well be a walk in the park.
This scientist I believe does not understand the nature of learning and all that needs to happen
They are just hyping this to get more kickbacks from fossil fuel industry?
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