You make good points, and your post is well reasoned.<quoted text>Too create these devices as claimed in the media the bombers used gunpowder from commonly available fireworks. Powder of this sort is a low explosive, it's actually more flammable than explosive as it burns really fast. If uncontained the force of gunpowder "detonating" is 0. That said, the powder would have burned until the heat and resulting gas caused a failure of the pressure cooker, probably at less than 90 psi. This low point of failure would likely be reached before all of the powder was consumed allowing the remaining fuel to burn very quickly in the newly supplied air and super hot gasses. I would think that the large plume of smoke and lack of a visible pressure wave would be consistent with this type of device.
I'm not expert on explosives, and freely admit that to be the case. I would like any actual explosives expert to show me any flaws in my theory however.
Im simply asking questions and pointing out the points others have made that I find interesting. As you can see some people find the act of questioning itself offensive. It's good not everyone does.
Thanks for your post and I too hope people familiar with such a device will chime in on how it works and should look in action.
Insults Are Easier