Who Knows What Happens When You Use High Explosives On Steel?

I am trying to get more info about the guy so I can write an article on it and publish it on my website (http://911physics.co.nr)

* Is it possible to do a demolition wirelessly?

* How do they know if all the charges go off or not?

* What happens if a charge fails to go off and the buildings falls anyway?

* Would it be possible to rig up a building so that the sounds of the explosives going off would not be noticed from a few blocks away?

* How would you place a cutting charge on a box column if you only had access to one face of that column?

* If you put a cutting charge on one face of a 12 inch box column that was strong enough to sever that column, how far would the shrapnel fly?

* What does a steel beem look like after it has been cut by an explosive charge.

* What is the long term stability of the explosives used in demolition projects?

* "removing the bottom 25 feet or so" How does that explain your theory that damage to UPPER floors caused the building to collapse like a controlled demo?

* Have you ever worked with C4 or military-grade explosives before? How do they differ from conventional demolition explosives?

* Imagine for a moment that the WTC towers were indeed brought down with explosives, what kind of explosive would you surmise it was done with?

* If you severed 10% or less of the support columns near the top of a steel frame building whose core had a load-bearing redundancy of 500-600%, would the building then collapse down to the ground?

* If you severed some exterior columns and core columns on only one side of a building such that the building collapsed, will the building collapse tilt to one side or will it fall straight down in a symmetrical collapse. Will the entire floor where the columns were severed collapse symmetrically and simultaneously, the unbroken columns included?

* Conventional controlled demolition works by severing a building's supports and then letting gravity do the rest, correct? In your experience in the industry, have you ever seen a steel frame building completely collapse, all its support columns severed, all of its concrete exploded into fine powder and spread into a giant dust cloud several kilometers in width, and 80% all of its exterior columns being blasted outside of the building's footprint, just under gravity alone with no explosives to help it?

* If molten steel was found in the basement of a collapsed building where the foundation was, what technology or explosive could possibly cause this? Would the presence of molten steel be unusual for a building that collapsed under gravity alone?

* Have you ever seen the footage of WTC7's collapse? Does this look like a conventional controlled demolition to you or not?

* WTC7 exhibited a perfectly symmetrical collapse supposedly because of relatively small fires on a couple of levels. How do you summise this occured? Do you think in the future setting buildings on fire could be a cheaper method of demolishing buildings than the current method of using explosives?

* If you were contracted to demolish the WTC towers but had to make it look like it collapsed by itself from the top down, how would you do it?
















Reply:

quote: Wireless? Yes, There are detonating cord and radio systems for initiating explosives.

Detonators (electric caps ) can be checked in advance with a specially built galvanometer. Modern initiating systems are very reliable....Sometimes, a cap will work but fail to detonate an explosive charge. Sometimes, a mangled charge (minus detonator) will get dug up in the rubble..

The sound of metal cutting shaped charges is incredibly loud and difficult to conceal.

Access to each side of a box column is needed....there are outrageous exceptions.

Most shaped charges are made of Metal (usually copper) tube that is pressed to look like this ^ . They have a core of explosive that detonates at a velocity of about 5 miles per second. The backside of these charges can send bits of metal shrapnel that can be found buried in solid steel hundreds of feet away. So, some kind of protection (cover ) is often needed..There is one brand of charge that does not have a metal backside....but it uses more explosive (more expense, more noise, more concussion)

Linear shaped charges work by sending a pencil-lead thin, focussed beam of metal particles (moving at about 10 times the speed of a rifle bullet) through a steel target. The cut is as neat and clean as though cut with a knife....much neater than a cutting torch.

The explosives used in shaped charges are stable for years.

Upper and lower segments of similar material are both diminished at the point of contact,

C-4 is made with RDX ..The same stuff that's preferred in linear shaped charges..Only linear shaped charges would be considered for demo of a big steel building by an expert.
Once again, there are outrageous exceptions.

10% No

One explanation does not fit all structures..This one is bigger than anything anyone has actually experienced, so I can't say how it should have looked.

Can't explain the molten steel.

I saw the footage. Yes ,, It looked like conventional explosive demolition. I saw a TV documentary about this event, the building's internal structure, the video of the collapse,and the points of structural failure. Personally, I was satisfied with its explanations.....But who can know for sure?

It has been an honor to answer your questions..but time wont permit me to continue....please, no more.

Access to each side of a box column is needed....there are outrageous exceptions.

C-4 is made with RDX ..The same stuff that's preferred in linear shaped charges..Only linear shaped charges would be considered for demo of a big steel building by an expert.Once again, there are outrageous exceptions.