Recent content by MarvinBotts

  1. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    Be that for what it is... Just a reminder that I am looking for a causal factor for a clump of explosions verses one spread out. We found a practical solution... By spreading the same number of firecrackers over a fence, the sound inhibiting paradox is dramatically reduced. See 2nd video It...
  2. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    I plan on doing addtional testing to ensure readings are correct and controlled. You know the actual pop of the firecracker is a 35ms event that requires a type II weighted sound meter
  3. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    Sorry, you are mistaken. Db's are logarithmic. 10 X the fireworks DEFINITELY will not increase the power 10X. a 1 Db increase is about 30% louder, and so on. A similar phenomenon is in play with earthquakes. The difference between a 6 and 7 is 32X
  4. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    So I get your scepticism but as a professional pyrotechnician I have witnessed it many times. The PGI, Pyrotechnics Guild International has journaled the effect and db measurements. I will get them. I thought noise cancelling headphones zeroed out out of phaze sound waves but produce heat as...
  5. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    Well, it is a very unusual experience. The first mega superstring I witnessed was overwhelming. I was 300ft away and I could not tell which direction the sound was coming from even though I could plainly see it
  6. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    There are numbers published. I will get a hold of them. However, I am not sure of the methods used. I know sound waves travel .6 meter per second for every degree temp change but since its rhousands of 35 ms event over several minutes, its a real mind bender than if a single event
  7. M

    B Destructive Interference in the sound of multiple firecrackers set off at once?

    There is a massive and continuous fireball as fire crackers are exploding, generating thousands of shockwaves. Perhaps they are bouncing off each other and cancelling each other out like noise cancelling headphones,
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