Comments by "irresistablejewel" (@irresistablejewel) on "What’s The Real Cause Of The Baltimore Bridge Disaster?" video.

  1. Building 7: hit by debris; ten floors on fire for over seven hours; no water (or fire service available)... hardly fell down by itself.
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  2.  @woopsy6935  Buildings 1 & 2 (The Twin Towers) collapsed when the central support column(s) sheared; the outer walls are not support (as in other designs); this central column bears the load. With nothing supporting the structure; it all falls at once (free fall; after overcoming inertia). The second impact being higher up; seems to have fractured the support column more; or it wasn't as strong. Building 7 experienced what is called a "progressive collapse"; that's when load bearing components buckle, or fail, transferring unacceptable loads to other components, that will fail. The root cause being fire altering the mechanical properties of steel and thermal expansion. According to Scottish engineers (at Edinburgh Uni): column 79 on floor 13; buckled and failed first; building 7 then lost lateral bracing and was then in a state of progressive collapse (so doomed). Different designs; but with no support objects do fall at "the speed of gravity"; buildings 1 & 2 almost instantaneously, all at once; building 7 the roof fell in. In my view no explosives required. Steel reinforced concrete is a wonder material; but if the steel corrodes, or expands, and it fractures; it's not. So I don't accept the "conspiracy theories"; what I think you have here is a very dangerous enemy; the "twin towers" were an economic weapon; had been targeted before and America never needed a valid excuse to invade countries, any old excuse will do. "The hunt for..." something or other. (usually oil, or opium). 24/7 rolling news then arguably did more damage, by rubbing it in...
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