Posted on 04/16/2013 2:33:27 PM PDT by tellw
The two bombs that killed three people and injured at least 176 at the Boston Marathon on Monday were made from six-liter pressure cookers crammed with shards of metal, nails and ball bearings and stashed in black backpacks, police sources revealed today.
The cruelly-designed bombs have 'frequently' been used in Afghanistan, India, Nepal and Pakistan, according to a 2010 Homeland Security Department pamphlet - hinting at the origins of the bombers behind the worst terrorist atrocity in the U.S. since 9/11.
(Excerpt) Read more at dailymail.co.uk ...
Yes, I shouldn’t have said “blast”, in referencing gunpowder in the open. My main point was that containment is necessary to get high-explosive-like blast from a low explosive, such as gunpowder.
When under pressure, it may burn faster — although the temperature build-up is also a factor in increasing the rate of burning. Even if it just continued to slowly fizzle away, like a sparkler — when it built up enough pressure to burst the containment vessel, there would be a blast.
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