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Nuclear tests and thin collumns of vapour/particles

  1. Nov 9, 2006 #1
    Often in daylight test videos you see several columns of what appears to be vapour shooting up into the sky beside the blast. What are these?

    edit: excuse typo in title.

    edit 2: example - http://www.mbe.doe.gov/me70/manhattan/images/UpshotKnotholeAnnieLarge.jpg

    They appear to be there to observe the dynamics of the air around the blast. How are they created?
    Last edited: Nov 9, 2006
  2. jcsd
  3. Nov 9, 2006 #2
    You got it right, those are made to study the effects of the shockwave after an explosion. They are not a result of the weapon.
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