[Could you please pause for a moment and think if you are discussing the topic of this thread ("rockets at the WTC", i.o. the allegation that a particular piece of free-falling debris was propelled by whatever), or if you are not rather feeding a troll by replying to his derail? Thanks!
In the same way someone said,
if that was a rocket with the propellant plume perpendicular to the direction of flight, it would have to be spinning wildly,
If you temporarily posit that yes, it was propelled by something other than the simple physics of an elastic collision in which the heavy object keeps on moving at the same speed, while the light object moves off at twice the heavy body's speed** - the next question is how did the
whatever get there? Assuming the means and motive, was there opportunity?
I'm trying to figure out how they got the
whatever into or onto the columns. The likelihood that it was propelled decreases as the difficulty of installing adequate
whatever for propulsion increases.
If the building was rigged during construction, there is always the risk of the
whatever going stale and either not igniting as expected or becoming unstable and self-igniting. As well, with remodeling that was done between tenants, the risk of the
whatever being discovered or accidentally damaged increases with time.
So it had to have been done post-construction, which leads to "what would it take" to remove any column and replace it with the "rocket column " filled with
whatever without being seen. And when could/would it have been done?
The logistics of replacing the column are sufficiently complex and noisy that it's extremely unlikely to retrofit columns filled with
whatever into the building.
** I've seen the same "leading object" in rockfalls where there was no
whatever to propel the rocks. After a collision with a ledge, the cloud of dust coming down the cliff is preceded by a rock or several.
)
