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Location DB > United States > California > Marin County > Fort Cronkhite > Battery Townsley > Battery Townsley 003.jpg

18 / 20   Battery Townsley 003.jpg

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Posted by /-/ooligan 8/8/2007 6:04 AM | remove
  This is the font side of the mysterious 'Shock Tube.' A small explosive charge of Det Cord set off inside directed all the pressure to the far end which was open.
Posted by Emperor Wang 8/9/2007 12:43 AM | remove
  To what end, exactly?
Posted by /-/ooligan 8/14/2007 9:19 PM | remove
  Um, to the far end, exactly? They'd set up various items -- wall sections, a safe, etc. at the open end & see how well various materials & designs would survive the pressure wave from the explosive charge.
Posted by Emperor Wang 8/15/2007 6:16 AM | remove
  Ah! A shockwave test chamber of sorts.
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