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I Quick question about explosions and displacement

  1. Sep 3, 2016 #1
    Understanding waves typically don't displace atoms but momentarily and then they move back into place, my intuition tells me that if a pressure wave on a certain gas meets a slightly different gas but with a similar density, the different gas wouldn't move dramatically due to the pressure wave.
    Is this correct or am I missing something (except the obvious math) which will say otherwise?

    Specifically, can an explosion, such as that from a nuke, move a cloud?
  2. jcsd
  3. Sep 3, 2016 #2


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    Staff: Mentor

    Looking at the behavior of the smoke in the first few seconds of the following clip, I'd say "yes". Watch what happens when the blast wave hits them.

    Edit: To clarify, I think the cloud would move some, but not much.
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