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Originally posted by STR
... the main problem with all explosives is that they don't last forever. Their chemistry changes, albeit slowly, over time. You can't just leave them sitting there for years. They'll either become inert, or at least unable to be detonated, or become unstable and explode the moment its moved the wrong way. How the explosive ages depends on the type of explosive and the age of it as some become unstable then later inert.
I am curious as to why you think the Port Authority of New York, which viewed the Trade Center as their crowning achievment, would plan to destroy it before it was even done.
Originally posted by Zaphod58
Detonators are very sensetive to RF interference. If you stand too close to one with a radio or a cell phone, or even a regular phone, then it can go off. And if the detonator goes off, your explosive charge goes with it. If they WERE built in, then at some point you would expect at least one of them to have gone off when someone with a radio or phone was standing too close to one and accidentally set off the detonator.
Originally posted by Zaphod58
You would need a couple of dozen people, and you'd STILL have a good chance of them going off.
Originally posted by STR
As I stated in the WTC7 thread, the main problem with all explosives is that they don't last forever. Their chemistry changes, albeit slowly, over time. You can't just leave them sitting there for years. They'll either become inert, or at least unable to be detonated, or become unstable and explode the moment its moved the wrong way. How the explosive ages depends on the type of explosive and the age of it as some become unstable then later inert.
As such, you'd have to replace every single charge in the weeks and months before the attack to be sure of collapse, which leads back to all the problems of installing the tons of explosives in thousands of locations without any tenants noticing.
I am curious as to why you think the Port Authority of New York, which viewed the Trade Center as their crowning achievment, would plan to destroy it before it was even done.
Additionally, other newer explosive materials contain inhibitors and/or stabilizers that lengthen the shelf life of the products. Some explosive products now contain TNT, Composition "B", Pentolite, Tetryl, RDX, PETN and other military type explosives which are extremely stable over a wide range of conditions for a long period of time. Many of these products have virtually unlimited shelf life.
www.ime.org...
Originally posted by Zaphod58
The 30 year old explosives that would be unstable, and the detonators going off, which would set off the 30 year old degraded explosives.
Tritonal is a mixture of 80% TNT and 20% aluminum powder, used in several types of ordnance.
en.wikipedia.org...
Some Sensitivity and Performance Characteristics of the Explosives H-6 and Tritonal
Abstract: The purpose of this investigation was to determine the relative energies of H-6 and Tritonal as measured by the Lawrence Livermore Laboratory (LLL) Cylinder Test, a test which measures relative metal accelerating ability.
Limitations: APPROVED FOR PUBLIC RELEASE
Description: Final rept. Mar 1972-Jun 1973
www.stormingmedia.us...
Originally posted by Zaphod58
It's also used in munitions. Demo charges are a specific type. But even if the explosive IS stable the detonator won't be, and the longer it's in place the more chance of an accidental discharge.
Originally posted by Zaphod58
Depends on the detonators, but usually. But again, you have thousands, or even hundreds of thousands of people walking in that building, using cell phones, and radios. Every one of those has a chance of setting off a detonator.
Originally posted by forsakenwayfarer
not particuarly. unless the building was wired entierly with det-cord. even that has to have a central detonator to ignite...